AEQ DIGITAL COMMENTARY SYSTEM CUSTOMER’S MANUAL ED. 11/ 99 (VALID ONLY FOR EQUIPMENT WITH SOFTWARE VERSION CU V3.2 AND CM V3.4 Y3.5 OR HIGHER)
A.E.Q., S.A. manufacturer of this equipment holds the AENOR certificate according to UNE EN - ISO - 9001 Quality Standard
ER-080/1/96
AEQ DIGITAL COMMENTARY SYSTEM MANUAL INDEX 1.- Introduction to the Digital Commentary System 1.1.- General description 1.2.- Commentary unit (CU) 1.3.- Commentary Control Unit (CCU) 1.4.- Control software 2.- Commentary unit (CU) 2.1.- Features Description 2.2.- Functional diagram 2.3.- Installation & wiring 2.3.1.- Front panel description 2.3.1.1.- Micro headset connection 2.3.1.2.- Micro connection 2.3.1.3.- Tape connection 2.3.2.- Rear panel description 2.3.2.1.- Commentary Control Unit connection 2.3.2.2.- STAND ALONE connection 2.3.2.3.- Auxiliary line connection 2.3.2.4.- Control connection 2.3.2.5.- DIP switch configuration 2.3.2.6.- Power supply 2.3.3.- Lower panel description 2.3.3.1.- Input Sensibility adjust trimmers 2.4.- Description and operation 2.4.1.- Configuring the unit 2.4.2.- Working panel 2.4.2.1.- Commentator panel functions 2.4.2.2.- Mic/Tape functions 2.4.2.3.- Status functions 2.5.- Using the Commentary Unit (CU) with a Commentary Control Unit (CCU) 2.6.- STAND ALONE use 2.7.- Commentary unit specifications (functional and physical) 2.8.- Commentary unit specifications (electrical)
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3.- Commentary Control Unit (CCU) 3.1.- Features description 3.2.- Functional diagram 3.3.- Installation & wiring: rear panel description 3.3.1.- Monitor connections 3.3.2.- External specific connections 3.3.3.- Individual CU connection 3.3.4.- Mains switch, connector and fuses 3.4.- Description and operation : the working surface panel 3.4.1.- Introduction 3.4.2.- Control module (CM) functional description 3.4.2.1.- CM : Upper section 3.4.2.2.- CM : INTL SOUND section 3.4.2.3.- CM : Reference signals control section : GUIDE, AUX, CUE 3.4.2.4.- CM : CU channels control section : COM1,2,3 and MIC/LINE 3.4.2.5.- TAPE WITHOUT IS MIS 3.4.2.6.- CM : IDENTIFIER section (ID) 3.4.3.- Monitor module functional description 3.4.3.1.- MM : Upper section 3.4.3.2.- MM : Lower section 3.5.- Commentary Control Unit specifications (functional and physical). 3.6.- Commentary Control Unit specifications (electrical) 4.- Control software 4.1.- System overview 4.1.1.- System description 4.1.2.- System requirements 4.2.- Wiring the control network 4.2.1.- CCU wiring 4.2.2.- Control computer wiring 4.3.- Software installation 4.4.- Using the DCS Realtime Control software in a control network 4.4.1.- General overview 4.4.2.- Setting the network operational parameters 4.4.3.- Commentary System Network screen 4.4.4.- Commentary Control Unit monitor screen 4.4.5.- Commentary Control Module screen 4.4.6.- Commentary Unit screen 4.4.6.1.- The Commentary Unit screen 4.4.6.2.- Digital Level Processor (DLP) 4.4.6.2.1.- Independence of the DLP in a CU 4.4.6.2.2.- DLP Transfer Function 4.4.6.2.3.- Configuring the DLP 4.4.6.3.- HPF button 4.4.6.4.- Store audio parameters button Digital Commentary System -3-
4.4.6.5.- Retrieve audio parameters button 4.5.- Using the DCS Realtime Control software in a direct connection 4.5.1.- Controlling a single Commentary Unit 4.5.2.- Customizing the Commentary Unit audio parameters 4.5.3.- Remote control of the Commentary Unit using serial data transmission 4.6.- Using the DCS Engineering Planning software 4.6.1.- Menu options 4.6.2.- Creating a new configuration file 4.6.3.- Opening an existing structure 4.6.4.- Adding and deleting elements in the network structure 4.6.5.- Assigning profiles to the elements 4.6.5.1.- Special Profiles : <NEW> 4.6.5.2.- Special Profiles : <NONE> 4.6.5.3.- Stored Profiles APPENDIX 1: AEQ Warranty
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1.- INTRODUCTION TO THE DIGITAL COMMENTARY SYSTEM The AEQ broadcaster digital commentary system was specially designed for radio and television reporting. Its flexibility makes it versatile enough to be used in most remote program situations. The digital commentary system engineering and operational design meets international broadcasters standards and requirements, making it very easy to operate while preserving a high level of maintainability. Unit configuration and functional changes are by software, and are centralized in the venue technical control room and therefore can be accomplished in a very short time. It is also possible to carry out these functions, via a modem, from the Program Control Ccenter (PCC) or similar, located in the International Broadcasting Center (IBC). The controls of each Commentary Unit (CU) are easily accessible and their number has been reduced to a minimum in order to simplify â&#x20AC;&#x153;on airâ&#x20AC;? operation. Controls are clearly identified by color and visual displays. Normally at each venue the signal comes to each Commentary Unit (CU) through a Commentary Control Unit console (CCU) consisting of ten commentary modules and one associated monitor unit. Both units are interconnected by digital cable. A Commentary Control Unit (CCU) is not used at smaller events, the commentary unit operates as a STAND ALONE, sending and receiving signals through the analog inputs and outputs, while keeping remote control capabilities through the built-in serial port. Both, the CU and the CCU, accepts in-system programming, which insures an easy and inexpensive way of system upgrading up to the latest available version.
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1.1.- General description Each Commentary System consists of ten commentator units (CU) connected to a commentator console (CCU) through 4 pair data transmission STP or FTP shielded cables used in data transmission.
The signals carried are as follows: â&#x20AC;˘ Audio and control signals. There are two pairs for carrying digital data related to audio feeds from commentators to the different output circuits, as well as input signals to be monitored at the commentatorâ&#x20AC;&#x2122;s side. Also included are remote control signals, call signaling etc. The system includes remote on field programming of the CU´s operational parameters (filtering, AGC, compression etc.) and CU permanent software upgrade capabilities. Digital Commentary System -6-
• Power supply. There is a dedicated pair for remote CU powering from the CCU. CUs can also be powered locally, using a external DC power supply. • Auxiliary line. The system offers one pair for direct auxiliary line connection, thus avoiding supplementary wiring costs. Each commentator position at the venues will be equipped with a commentator unit that can be used by up to three commentators and a guest announcer simultaneously. The position of the guest announcer can also be used to playback a pre-recorded tape. The Commentator Units have been designed to provide the commentators with their own commentary circuit and easy access to all their coordination talkback circuits. Through their microphone headset combination, commentators have access to the following circuits: Their own commentary output circuit (Program). • A choice of incoming signals such as International sound TV from the venue, International sound Radio from the venue, Public Address (P.A.) system, cues from the venue mobile producer, a local cue, beeping signals and an optional feed from another commentator or cue circuit. • Two-way communications with the venue technician responsible for the commentary system and with the IBC or their home studio.
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1.2.- Commentary unit (CU) The main function of this unit is to provide access to a combined microphone headset for the broadcast of commentary or communication with a studio at the IBC or the home country. The unit provides several operational possibilities, which will vary in relation to the technical and operating criteria forecast for each event, and in general are: • The use of a microphone for commentary broadcast. • Talkback from the producer at the IBC, studio or country to the commentator at the venue. • Commentator communication to the IBC studio or country producer. • A return feed of the studio program output to the commentator. • A feed which gives the results from the venue P.A. system. • A two - way communications circuit between the commentator and the operator at the Commentary Control Room (C.C.R.). • Cue and venue information from the mobile producer. • Cue information from additional organizations. • Beeping signals of T’Back circuit. • The option of disposing to listen the IS signal (preselected as the television one or the radio one). from the competition site while broadcasting. • The option of selecting a signal from the commentator GUIDE and an auxiliary input (AUX) as a listening reference for the commentator to obtain a data source for his commentaries. All these functions are remotely controllable according to the technician’s choice.
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1.3.- Commentary Control Unit (CCU) The Commentary Control Unit (CCU) is designed to control and monitor up to ten commentator signals from the commentator units, as well as provide the required remote powering. Each of the ten modular control sections has: • a level meter for the PRG output • an output selector (oscillator, ID, program) • a digital mixing section, where the selected IS can be added to the commentary signals to get the PROG/IS feed. The IS signal can be upgraded by the Digital Level Processor (DLP). Audio parameters associated with the DLP are fully programmable under the control software. • A section to enable the AUX and GUIDE signals to the commentator • A section for the routing and aperture of CUE 1 and CUE 2 signals to the commentator • An individual remote control and configuration section for each of the four CU channels (COM 1, COM 2, COM 3 and MIC/LINE) • A section for switching and signaling talkback calls • A line identification section (ID) for the program and coordination circuits. The monitor unit provides the operator with access to all program and cue circuits for listening via a built-in speaker or set of earphones. A precision dB meter is provided to measure absolute levels on all circuits. The unit also has intercommunication functionality with the program and coordination circuits. The monitor allows access to the local talk back circuit or a connection to the external 4 wire circuit. The power supply section, located on the rear panel, consists of two independent modules, giving the redundancy level required for these types of events. Each one of the modules is thus able to fulfill the power requirements of the CCU and the associated CUs. The power supply design includes advanced techniques like power factor correction, input voltage autoranging, high efficiency switching conversion, etc.
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1.4.- Control software The control software is a native 32 bits application, designed to run under Windows 95 or Windows NT operating systems. It performs the following tasks: • Can work in direct connection to a single CU, through the serial port, for upgrading, setting audio parameters and real time remote controlling of the unit. • Can be used in a network configuration, carrying the full control of a given number of CCUs and their associated CUs. Up to 32 CCUs (320 CUs) can be controlled in this way. • Performs real time supervision of the Commentary Control Network, using a standard RS 485 (2 wire) interface. The required hardware is included in the CCU as a standard option. • Enables the user to define off-line configurations of the venue commentary system, including audio and operational pre-settings. These pre-settings can be downloaded to the real venue Commentary System. The setup time and presetting tasks are dramatically reduced.
*Microsoft Corporation registered trademark
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2.- COMMENTARY UNIT (CU)
2.1 Features description The Commentary Unit (CU) is the commentatorâ&#x20AC;&#x2122;s interface to the AEQ Digital Commentary System. It represents the final result of a wide variety of quality and field tests, in which different aspects related to ergonomics, function, user environment and operational costs have been carefully taken into account. As does the rest of the system, the CU uses the latest available digital audio and communications technology. Real time digital signal processing and automation concepts have been used in order to increase the capabilities of the system, while keeping the easiest userâ&#x20AC;&#x2122;s interface and a very high level of protection against operational errors. The equipment offers some unique features like: Three operation modes: -STAND ALONE self controlled digital mixer, with analog inputs and outputs. -STAND ALONE digital mixer, with remote control through the serial interface. -Remotely controllable digital mixer, when connected to the Commentary Control Unit (CCU) by means of an inexpensive 4-pair FTP or STP cable and an RJ-45 standard connector. The CU includes all the required circuitry to perform a 5.4 Mb/s high reliability digital link to the CCU.
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Switching between the three available modes is automatic, on detection of the communication clock signal sent from the CCU or the control signals coming from the serial port. • Digital Level Processor module on each one of the four input channels. Much more than a limiter, the DLP is a single band audio processor with a sophisticated level control algorithm, working as an expander, compressor, limiter or unity gain amplifier, depending on the signal’s peak power mean value. This characteristic gives optimum utilization of the audio channel without the need for continuous supervision by the technician. • All audio parameters, attack and release time, gain slopes and knee points, can be defined and stored in the CU through the serial communications port. • Flash EEPROM upgradeable technology. The equipment stores all program and configuration data on non volatile memory, which can be updated, or changed to the requirements of specific users via the RS232 connector and the supplied Windows 95 program. • Includes a testing procedure for unit diagnostics and trouble detection by technical staff. • There are 4 different configurations stored on the CU which can be called-up on power - up: - 2 user defined configurations - One special mode (required by BBC) which configures the COM 3 channel to be used by a program producer: the studio talkback pushbutton is then changed to latching mode, instead of the normal pushto-talk mode. - One operation procedure (ISMIX) to enable or disable the mix of International Sound (IS) with PRG on the CU in order to suspend the mix of IS and PRG when the line signal is sent by the tape recorder channel. • High quality magnetically shielded input transformers on all analog inputs, with a high degree of RF protection. • Wide input range DC/DC switching power supply; from 12 to 48 VDC. • Local or remote powering with auto-switch function. • Custom designed LCD symbols, for clear signaling of the CU status. • The analog input and outputs are externally adjustable by high precision trimmers.
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2.2 Functional diagram
Figure 2.2. CU Functional Diagram
The diagram displays the CU functional layout. The signal generated in each of the four channels proceeds (through a high pass filter HPF and a dynamic processor DLP, activated and configured
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remotely from the CCU) to the PROGRAM, TECH and STUDIO mixer circuits, which are sent multiplexed digitally to the CCU. The listening circuits permit each commentator to select the P.A., Guide, Aux, IS and Program signals for his right earphone (and the right f’back local analog signal, if present). These can be mixed for listening if desired, and are accompanied by the specific coordination sounds for each commentator (CC/FB TO COM), labeled on the front panel as “Coord RX”. The signals set LOCAL T’B (TECH)/CUE/RINGER can be addressed from the CCU to any ear (right, left or both). The studio feedback PGM FB is sent to the left earphone with the analog signal left f’b if present. When a commentator speaks to the local CCU technician, the signal remains separated from the program. The same happens when a commentator speaks to the studio. The push-buttons (PTT) intercom ‘Push to Talk’ send the commentator’s voice to the corresponding circuits. The “Channel On” switch allows the commentator’s signal to be sent to the program circuit. This can be remotely activated. The “STAND ALONE” switch allows to send the commentator signal to the program circuit. This switch can be activated remotely. In “STAND ALONE” mode the left earphone simply receives the signals at the corresponding “analog feedback left” banana plugs, while right earphone receives the mix of the signal at the “analog feedback right” banana plugs with the local program mixed in the CU. When the unit is in STAND ALONE mode the program sound is the mix of of the CU channels without including the sound from other external sources. When the CU works in STAND ALONE mode, there is neither CUE nor Local Talkback and Ringer arrives to the left ear. The intercommunication with the CCU (LOC T/B) and CUE or the studio feedback are sent to the left earphone.
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2.3 Installation & wiring To be able to clarify the installation and wiring process, it is necessary to be familiar with the connectors and configurable elements (front and rear). It should be remembered that this equipment is capable of functioning in conjunction with a CCU or as a â&#x20AC;&#x153;STAND ALONEâ&#x20AC;? unit, the necessary wiring being distinct in either case. 2.3.1 Front panel description
The front panel houses one XLR audio connector aligned to each channel. The commentator channels are supplied with a female XLR 7 pin connector, usually for the connection of a micro-headset. The Micro-Tape (LINE) channel is supplied with a female XLR 3 pin connector, normally for the connection of a microphone or a portable tape recorder (LINE).
2.3.1.1 Micro headset connection The micro - headset is normally supplied with plugs suitable for direct connection to the CU. The connector wiring is given below: 1: Ground 2: Right earphone V+ 3: Right earphone V4: Left earphone V+ 5: Left earphone V6: Microphone V7: Microphone V+
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2.3.1.2 Micro connection The microphones are normally supplied with suitable plugs for direct connection to the CU. The connector wiring for special uses is given below: 1: Ground 2: Signal V+ 3: Signal V2.3.1.3 Tape connection (LINE) The cable to the tape-recorder must be connected normally, with the terminal to the CU fitted with a 3 pin male XLR connector. The connector wiring is given below, for both balanced and unbalanced line outputs. Balanced line outputs: 1: Ground 2: Signal V+ 3: Signal VUnbalanced line outputs: 1: Ground and Signal V2: Signal V+ 3 : Ground and Signal V-
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2.3.2 Rear panel description
The following facilities are situated on the rear panel: - Local analog feedback connectors for left and right earphones (LEFT F’BACK, RIGTH F’BACK) and trimmers for input level adjust ( LEVEL TRIM ) - Local auxiliary program output connector (MIXED OUT) and trimmers for output level adjust (LEVEL TRIM) - CCU communication connector (FROM CONTROL UNIT) - Auxiliary line connector (AUXILIARY LINE) - Data connector (CONTROL DATA PORT) - Auxiliary power supply connector. (EXTERNAL DC INPUT) Micro switch bank for power-up configuration selection (STARTUP CONFIGURATION) The following sections describe the elements listed above and their use.
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2.3.2.1 Commentary Control Unit connection When the CU is working with a CCU, in addition to the micro-headphones for commentators 1, 2 and 3, and the guest commentator microphone or tape input, the links with the CCU also have to be wired.
When it works in conjunction with the CCU, a single 4 pair cable fitted with RJ 45 connectors receives and sends all the digitally multiplexed CCU working signals, including the power supply and the analog telephone line. The cable used must be a AWG24, STP or FTP Category 5 type, with four twisted pairs. The connection at both sides will include the ground connection. The male connector used will be a RJ-45, shielded, AMP-5-569530-4 or similar. If a female-female extension is used, the ground connection (shield) continuity must be granted. With the wire described above a distance of 300 m. can be covered. In 2.3.2.5. section, the equalization switch is described which must be set depending on the length of the cable to be greater or less than 150 m.
RJ45 MALE CONNECTOR
The connections between the CCU and each of the CUs are made without crossing the wires, maintaining the relative position of the conductor in the RJ 45 connector. The connector wiring is given below, showing the signals carried by each conductor. FRONT VIEW
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Wire Number 1 2 3 4 5 6 7 8
Pair Number/Colour 1 Green White 2 Orange White 3 Blue White 4 Brown White 4 Brown 3 Blue 2 Orange 1 Green
CU Connection DC mains 48V + Auxiliar line wire1 Tx V+ Rx V+ Rx VTx VAuxiliar line wire 2 DC mains 48 V-
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CCU Connection DC mains 48 V+ Auxiliar line wire1 Rx V+ Tx V+ Tx VRx VAuxiliar line wire 2 DC mains 48 V-
2.3.2.2 STAND ALONE connection
When the console is working alone without a CCU, in addition to the microheadphones for commentators 1, 2 and 3, and the guest commentator microphone or a tape-recorder line output, the following links also have to be wired: The left channel input which carries the signals for listening in the left earphone. The right channel input which carries the signals for listening in the right earphone. The program mixed output carrying the commentatorsâ&#x20AC;&#x2122;voice mix. The connectors for MIXED OUTPUT, INPUT LEFT and INPUT RIGHT are 4 mm banana type, the positive (V+) are connected to the red terminal and the negative (V-) are connected to the black terminal. The external power supply must also be connected (DC 12-48V; 1 A @ 12V).
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2.3.2.3 Auxiliary line connection The AEQ Digital Commentary System supplies a auxiliary line connection to each CU. For this purpose, the CCU is fitted with a auxiliary lines inputs which will accommodate 10 lines, extending each one to the corresponding CU auxiliary line connector. The use can be adapted to the specific necessities of each broadcaster: • Remotes supplys. • Communications. • Video, etc.... The Auxiliary line connector is a 6 pin RJ 11 type. The Auxiliary line must be connected to the two central pins (3 and 4), according to the standard for RJ 11 connectors.
2.3.2.4 Control connection The equipment features a chassis mounted female DB 9 connector for configuration by an external computer communicating through RS 232 protocol. The active pins are: RX TX GND RTS
2 3 5 7
For details of the PC serial port connection, consult the appropriate computer handbook. The System Control Software and its application to the CU is explained in chapter 4 of this manual.
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2.3.2.5 Dip switch configuration The units feature four dip switches numbered from 1 to 4, which are accessible on the rear panel, for access to cable equalization and the equipment software configuration memories. The ON position is down and the OFF position is up. Cable equalization Previous to connect the link cable from CU to CCU, dip switch number 2 must be selected as shown below : â&#x20AC;˘ If cable length is less than 150m., the dip switch number 2 must be set to ON position (down). â&#x20AC;˘ If cable length is greater than 150m., the dip switch number 2 must be set to OFF position (up). By this selection, the most proper equalization will be used to grant a low error rate in the digital link circuits.
Functional configurations (There are several configurations programmed via software to be selected before power on)
(1) Audio configuration 0 (1) Audio configuration 1 (2) Standard COM3 configuration (3) BBC COM3 configuration (4) INPUT TAPE standard configuration (5) INPUT TAPE WITHOUT IS MIS config.
SW 1 ON OFF -
SW 2 -
SW 3 ON
SW 4 ON OFF -
-
-
OFF
-
(1) There are 2 pre-programmed selectable configurations (2) The commentator coordination circuit number 3 works in standard mode (PTT) as required for most users (3) The commentator coordination circuit number 3 works in commutation mode as required by BBC (4) The switch Channel ON of interview Mic channel or tape recorder just opens the circuit. (5) When the switch mic/line is in line position, the switch mentioned above disables the mix of international sound with program If the circuit is opened, avoiding the mix of IS with the signal introduced through line. The application of each configuration is described with detail in the corresponding section of chapter 4. Digital Commentary System -22-
2.3.2.6 Power supply The unit power supply is normally through the CCU by the 4 pair cable fitted with RJ 45 connectors. If the unit is working in â&#x20AC;&#x153;STAND ALONEâ&#x20AC;? mode, the external DC power supply must comply with the following characteristics: V DC Polarity Current Connector :
12 to 48 V. Indifferent 1 A @ 12V. , inferior for V DC > 12V. DC standard cylindrical, 2 mm internal, 6 mm external
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2.3.3 Lower panel description
The following facilities are situated on the rear panel: - trimmers for commentary and interviu microphone sensibility input level adjust. Factory setting:.: -50dBu at 1kHz. for 0dBu in Prog
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2.4 Description and operation 2.4.1 Configuring the unit The application of each configuration as selected according to section 2.3.2.5. is described in the corresponding section of chapter 4. After any change in the configuration, it is necessary to disconnect powersupply from the CU to allow it to reset and restart with the new configuration. 2.4.2 Working panel From the operational point of view, the working surface is divided into five areas: • Commentator control area: COM 1, COM 2, COM 3/ PRODUCER. • Interview microphone / portable tape recorder control area. • Status area.
Fig.2.4.2 Working Surface Layout.
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2.4.2.1 Commentator panel functions The figure in the left column shows the different controls associated to each one of the three commentator channels : COM 1, COM 2 and COM 3 / PRODUCER. • INTERCOM TECH. Holding down this push button enables the commentator to talk to the technician at the CCU using the local T’back circuit. While pushed, this control temporarily disconnects the commentator from the Program On-Air circuit. Therefore the operation is PTT mode (push to talk). The first time this push button is depressed, it generates an incoming call ring signal at the CCU side. Once the technician establishes the local T’back circuit (answering the call), the push button works in push to talk (PTT) mode. This situation remains valid until the technician releases the local T’back circuit. NOTE: If the CCU control technician calls to the CU, in addition to ring in the earphones, a blinking signal on the Commentator 1 TECH LCD appears. To stop the blinking is necessary to answer the call by pressing the TECH button on any channel. • INTERCOM STUDIO: Holding down this push button enables the commentator to talk to the studio producer by means of the coordination circuit. While pushed this control temporarily disconnects the commentator from the Program On-Air circuit. Therefore the operation is PTT mode (push to talk). The access of the each of the commentary channels to the coordination circuits can be enabled or disabled at the CCU. Digital Commentary System -26-
• RIGHT EARPHONE SELECTOR SECTION. It consists of five push buttons labeled IS (International Sound), PA (Public Address), GUIDE , AUX and PROGRAM. The signals selectable by the commentator associated with the right ear selector are activated by pushing the switch and deactivated by pressing the same switch a second time. * IS can be one of the two available circuits and is selected at the CCU (Commentary Control Unit). Usually both are event ambient sound feeds, one designed for Radio (IS 1) and the other for TV (IS 2) coverage. * PA is a feed from the public address system. * GUIDE and AUX are guidelines or feeds from other commentators’ programs or external auxiliary lines. To make available these signals they must first be connected at the Commentary Control Unit. * PROGRAM gives a feed of the ‘On-Air’ circuit. If there is a valid connection to the CCU, this signal is generated at the CCU side, otherwise the program feed is the local mixed output. Switching between the two possible sources is automatic and transparent to the user. • CHANNEL ON connects or disconnects the commentator’s microphone to the Program ‘On-Air’ circuit. It can be remotely controlled from the Commentary Control Unit, and works interlocked with the coordination buttons TECH and STUDIO. • LEFT AND RIGHT. At the lower end of the module there are two rotary level controls associated with left and right headphone outputs. These level controls affect to the selected source listening levels. Other signals are available at the commentator headphones, these cannot be reduced to zero level. In this way, important signals not selectable by the user are always audible : SIGNAL SOURCES
HEADPHONES OUTPUT AT C.U.
IF VOLUME OF POTEN.
LEFT
RIGHT
IS FULLY OFF:
CUE
DEPEND ON CUE ROUTING AT CCU
DEPEND ON CUE ROUTING AT CCU
STILL AUDIBLE
LOCAL T’BACK
DEPEND ON CUE ROUTING AT CCU
DEPEND ON CUE ROUTING AT CCU
STILL AUDIBLE
RINGER
DEPEND ON CUE ROUTING AT CCU
DEPEND ON CUE ROUTING AT CCU
STILL AUDIBLE
ROUTING FIXED
FULLY OFF
ROUTING FIXED
FULLY OFF
ROUTING FIXED
FULLY OFF
ROUTING FIXED
FULLY OFF
ROUTING FIXED
FULLY OFF
ROUTING FIXED
FULLY OFF
,
FULLY OFF
COORDINATION F’BACK IS PA GUIDE AUX PROGRAM GO PROGRAM F’BACK
ROUTING FIXED
IN ITALIC LETTERS SELECTABLE BY THE USER
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NOTE: The Commentator 3 channel can be software configured so that the INTERCOM STUDIO key does not operate in PTT mode, but remains activated after pulsation until it is deactivated with a subsequent pulse (latching mode used by BBC and others). See 2.3.2.5. In this way, the producer can stay all the time sending his instructions by the aux output of coordination circuit (CC). This output may be wired from the CCU to the outputs GUIDE or AUX of other commentator who will receive instructions or comments from the producer. 2.4.2.2. Mic/tape functions The Commentary Unit can be used simultaneously by three commentators and one guest announcer. This is the control area for the guest’s microphone. The input can also be used to playback a pre-recorded tape or to connect a line level signal. • MICRO/LINE a toggle switch selects the appropriate input impedance and gain for a dynamic microphone connection or a portable tape recorder. The LCD arrow ON indicates that the channel is in MIC mode. LINE or tape mode is selected when the arrow is off. • CHANNEL ON connects or disconnects the micro / line channel to the Program On-Air circuit.
NOTE : If INPUT TAPE without IS MIX mode is enabled this area controls if PRG and IS are mixed in accordance with section 2.3.2.5. In INPUT TAPE without IS MIX mode, if this channel is in line position, the activation of CHANNEL ON will cancel the mix of international sound (IS) on the according CM of the CCU. In this way, if the channel is open, the international sound will not mask the send of a transmission from the tape recorder.
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2.4.2.3. Status functions • POWER ON indicator. NOTE : There is no power switch, so, If you need to turn off the device, you must suppress the power by disconnecting the connector ““FROM CONTROL UNIT” ór “EXTERNAL DC INPUT”. CONTROL CONNECTED. This arrow shows when a valid data connection between the CU and the CCU has been established. • ON AIR. Shows when the control module is in PRG mode, allowing the audio program to reach the communication line. When working in STAND ALONE mode, this arrow indicates that there is at least one channel opened. NOTE: If there is not any microphone open on the CU and the PROG mode is selected on the CM, the ON AIR led will blink. If there is any microphone open, the led will remain on.
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2.5 Using the Commentary Unit (CU) with a Commentary Control Unit (CCU) All the above detailed features and functions are available to the user when operating the CU in conjunction with a CCU.
2.6 STAND ALONE use The restrictions which use of the console in “STAND ALONE” mode imply are as described in section 2.2. above. If you wish to control remotely the CU through an ISDN connection using the data channel of an AEQ codec, contact with AEQ technical staff who will supply you of a software version with a data channel of 1200 bps. The use through ISDN must be emphasized because of the need for few technical recourses and the availability of markedly improved operability:
The local wiring is as follows: The CU output MIXED OUT is connected to the audio input of a codec. The audio output of a codec is connected to the LEFT F’BACK input of the CU: this signal will be heard through the left earphone. The codec DATA PORT is connected to the CONTROL DATA PORT of the CU. The MIXED OUT signal is sent to the right earphone. The codec is connected to a terminal adapter and from this to a basic ISDN access. The remote wiring in the broadcast studio is as follows: The basic ISDN access to the terminal adapter and from this to the codec. The codec audio output to a mixer input channel. The codec audio input to the mixer mix-minus bus output. The codec data port to a serial port on the control PC. Thus the CU is remotely controlled by the PC software from the control studio (see also Section 4). The program is sent at the same time as F’Back is received from the studio, through the codec. Digital Commentary System -30-
2.7 Commentary unit specifications (functional and physical) 1. Commentary inputs. 3 Microphones. 1 Switchable Mic/line 2. STAND ALONE connections. 2 Analog feedback inputs, one for left and another for right channel. 1 Analog mixed output. 3. Outputs (when connected to CCU). 1 Program circuit (mixed out) 1 Local Tech. circuit. 1 Studio circuit. 1 Auxiliary connection 4. Sources to be monitored. Program feedback. Program mixed output International sound (Selectable between two sources at the CCU side). Public address (PA). Guide AUX Coordination receive, CC F´Back (Selectable at the CCU side).. Technical circuit (local T´Back) CUE: Two different sources that can be addressed at the CCU side and routed to left, right, or both earphones outputs.
5. Size and construction. The higher panel contains all the controls accessible to the commentators. and is formed from a polycarbonate membrane, which is printed on the under side, to avoid degradation by use, and adhered to analuminium front. The surface is holed under the polycarbonate labels, giving access to the physical switches located on the printed circuit board. Visual indication of the switches and status of the Commentary Unit is through small LCD modules, with internal arrows, located under polycarbonate membrane windows, which give good readability characteristics, even under direct sunlight conditions, while keeping the total current consumption under Digital Commentary System -31-
the previously specified limit. The most important controls (CHANNEL ON) are lighted from the back side for an easy localization in low-visibility environments. The box, to which the front panel is attached, is made of shock resistant ABS plastic, while the base of the equipment is made of steel. The use of this mechanical construction yields full rain protection requirements. Note that the rotary potentiometers are attached to the front panel, and sealed with a rubber ring. 300 mm x 260 mm x 75 mm (see drawing). Water drop resistant.
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2.8 Commentary unit specifications (electrical) 1. Analog inputs. • Isolated shielded transformer on all input channels, with RF filter. • A/D and D/A conversion: 16 bits linear, at 42 KHz sampling frequency (sigma - delta type with oversampling) • (14 KHz when the ID at CCU is selected ) • Micro inputs: • Input Impedance: > 3 KΩ • Input nominal level for 0dBu in Prog.: -50dBu. • Max. input level for nominal adjustment: -43dBu. • Adjustment range for 0dBu in Prog.: -77dBu ÷ -30dBu. • Output variation range for nominal input :+17dBu ÷ - 14dBu. • Bandwidth: 20Hz ÷ 18KHz -1.3dB; -11dB at 20khz. • Bandwidth with operate ID : 20Hz ÷ 7KHz. • EIN: (G= 60dB; Abs. noise= -58dBu) = - 118dBu (with BPF). • EIN: (G= 70dB; Abs. noise= -52dBu) = - 122dBu (with BPF). • Digital Level Processor (DLP): (Addressable only through control software) (When ID is ON in CCU the DLP is not connected) -Attack time : from 0.1 ms to 50 ms , 0.1 ms step. -Release time : from 100 ms to 3000 ms , 10 ms step. -Level control transfer function (all dB referred to A/D overload) -User definable region : from -61 to 0 dB. - Forced unity gain region : below -61 dB - Resolution : 62 points, 1 dB / step• High pass filter (HPF): Filter type : IIR 4th order elliptical filter. Cut -off frequency :user selectable between 50 and 300 Hz, at 50 Hz step • Line Input: • Input impedance : > 6K5 Ω • Input nominal level for 0 dBu in Prog : -2.7 dBu • Maximum input level for nominal adjustment : +18 dBu • Adjustment range for 0 dBu in Prog : -18 dBu ÷ +11 dBu Digital Commentary System -33-
• Output variation range for nominal input : +15 dBu ÷ -14 dBu • Bandwidth : 20 Hz ÷ 18 kHz -1.3 dB ; -11 dB at 20 kHz • Bandwidth with operate ID : 20Hz ÷ 7KHz. • DLP and HPF are identical to MIC inputs. • F/B Inputs: • Input impedance : > 6K5 Ω • Input nominal level for +12 dBu in Earphones : +4 dBu • Maximum input level for nominal adjustment : +18 dBu • Adjustment range for +12 dBu in Earphones : -9 dBu ÷ +11 dBu • Output excursion for nominal input : +5 dBu ÷ +25 dBu • Bandwidth : 20 Hz ÷ 20 kHz -1.3 dB
2. Mix Output Stand-alone mode: • Mix Output : • Output impedance : < 75Ω • Output nominal level : 0 dBu • Adjustment range : +6dBu ÷ -19dBu • Maximum output range :
+23dBu for 0.4% of THD at 50Hz. +18dBu for 0.2% of THD at 30Hz.
• Absolute noise (with all send cut-off) : -61 dBm (with BPF) • Earphones Output : • Nominal load impedance : 2 x 400Ω • Output nominal level : +12 dBu
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• Maximum output level : +25dBu • Absolute output noise : -42 dBu (send cut-off, max. faders, BPF) Output power : 215 mW (on 400Ω )
3. Digital interface. • 5.4 Mb/s bi-directional self-clocked serial data.(Uses two pairs) • 1 pair remote powering. • 1 analog auxiliary pair set connection.
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3. COMMENTARY CONTROL UNIT (CCU) 3.1 Features description The Commentary Control Unit (CCU) is the hearth of the AEQ Digital Commentary System. It´s housed in a 9 u heigth rack , wich includes: • Ten control modules (CM) • One Monitor & Intercom module (MM) • Two independent power supply • Connectors chassis and panels. As the rest of the system, the CCU uses the latest available technology on digital audio and communications. Real time digital automation and signal processing concepts has been used in order to increase the capabilities of the system, while keeping the easiest user’s interface and a very high level of protection against operation errors. The equipment offers some unique features like: • Independent Solid state line identification REC/PLAYBACK section for program and coordination circuit. • 64 MHz. DSP on each channel for signal processing • Independent Digital Level Processor (DLP) module for International Sound on each channel. • Remote control of CU status and functionallity by means of an inexpensive 4-pairs UTP cable and RJ-45 standard connectors. The CM channel of the CCU includes all the required circuitry to perform a 5.4 Mb/s high reliability digital link to the CU. • Two independent CUE sources that can be routed independently to left , rigth or both earphones • Computer remote control of the full CCU network • Full intercom capabilities • Included rear patch pannel for GUIDE and AUX signals • Dual redundant power supply
Digital Commentary System -36-
3.2 Functional diagrams 3.2.1 Commentary Control Unit functional diagram
Fig. 3.2.1 Commentary Control Unit functional diagram. The diagram shows the CCU functions. Each individual control module (CM) receives the common audio signals (IS 1, IS 2, CUE 1, CUE 2, and PA) to send them to the CU. They also interconnect the associated CU with specific auxiliary line, coordination and program circuit signals, guide and auxiliary. Digital Commentary System -37-
On the other hand it establishes a technical coordination circuit with the CU which originates in its own CCU (LOCAL T’BACK) or sent from the local technical coordination center (TCC) next to the control computer (REMOTE T’BACK). The monitor module (MM) checks the quality of the common signals (IS1, IS2, CUE 1, CUE 2 and P.A.) both optically and audibly, as well as of those specifically from each module (PROG GO, PROG F´B, CC GO, CC F´B, GUIDE, AUX, IS and P.A.) This module also has the necessary elements for the intercommunication with the coordination and program circuits (previously mentioned referring to the CM), and to allow the access to the local technical intercommunication circuit (LOCAL T’BACK) and to an external 4 wire intercommunicator which performsthe function of REMOTE T’BACK.
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3.2.2 Control module functional diagram
Fig. 3.2.2 Control module functional diagram. The diagram shows the function of each individual Control Module (CM) incorporated at the CCU module. The action on the auxiliary line is totally neutral, it is simply routed to its respective CU. The CU digital outputs, PROGRAM, TECH and STUDIO, are received. The TECH signal is routed to the MONITOR MODULE (MM) as an incoming intercommunication. The PROGRAM signal is distributed between, the PGM OUT TO CU output which returns to the CU for listening, and the digital input which is mixed with INTERNATIONAL SOUND (IS) and can be selected later by the AUDIO MODE selector (as long as PROGRAM GO INTERCOMMUNICATION is not activated Digital Commentary System -39-
for this CM from the MM, this having priority) as an alternative to the internal OSC and ID signals. There are two program outputs, one through the multiconnector to the IBC, and another labeled PGM AUX, this is situated at the rear of the module and is available for local use. The output signal is monitored by the individual VU-meter and passes to the monitor module where it can be listened to, and measured with precision. The STUDIO signal which enters the module with coordination circuits (CCGO) destination, can be interrupted from the monitor module by the activation of CCU intercommunication, CC TALK ON GO, (COORD GO) which has priority, or through the internal signals OSC or ID in the AUDIO MODE selector. The CC GO output goes through the multi-connector to the IBC. The output signal passes to the monitor module where it can be listened to, and measured with precision. Each individual module receives the common signals (IS 1, IS 2, CUE 1, CUE 2, and PA) to send them to the CU. The selection of the signal for listening, IS 1 or IS 2, is made at the module input, the selected IS is sent to the CU as a reference for the earphone circuits at the CU and passes to a dynamic audio processor (DLP). This processed signal is mixed with the program if IS MIX ENABLE is open after being regulated with MIX LEVEL potentiometer. A copy of the processed IS can be sent to the monitor module (MM) to be controlled. The Digital Level Processor characteristics are identical to the ones described in paragraph 2.8. The DLP can only be configured from the Control Software , but it can be permanently stored in the control module for future use. Route control of the passage (enable-disable) of CUE 1, CUE 2, PA, GUIDE and AUX signal to the CU headphones is also performed. All these can be sent to the monitor module in case they are required for monitoring. There is a switch to perform the routing of CUE, Local Tâ&#x20AC;&#x2122;B and Ringer to right, left or both earphones of the commentators. Various functions for each CU channel are managed from the CCU by remote control : Together with the individual dynamic processor (DLP), a high pass filter (HP FILTER) can be activated, access to the coordination circuit (CC F´B ENABLE), and also the opening of the channel (CHANNEL ON), while maintaining a parallel control of CHANNEL ON in the CU channel.
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3.2.3 Monitor module functional diagram
The figure shows the Functional Diagram of the Monitor Module. This Module carries out the different functions of Monitoring and Intercommunication of any Control Module that has previously been selected.
FIGURE 3.2.3. Monitor Module Functional Diagram
The diagram shows the function of the CCU. The monitor module checks, as shown previously, the quality of the common signals (IS1, IS2, CUE 1, CUE 2 and P.A.) both optically and audibly, as well as those specifically from each control module (CM) (PRG GO, PRG F´B, CC GO, CC F´B, GUIDE, AUX, IS and P.A.). A precision meter and loudspeaker are used for this purpose, these are always connected to the selected monitor circuit, except when an intercommunication channel is established.
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The CCU, together with possess a technical local coordination circuit (LOCAL Tâ&#x20AC;&#x2122;B) that can be used by the technician to communicate with the commentators, offers the chance to enable an INTERCOM mode to allow the technician to incorporate into the program circuit or the coordination circuit in the GO way, Fâ&#x20AC;&#x2122;B way or both. A microphone or input line can also be routed, through the monitor module, to any line identifier (ID) recording circuits to record its message.
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3.3 Installation & wiring: rear panel description
Figure 3.3 shows the rear panel of the Commentary Control Unit, where all the connectors are located.
AUXILIAY LINES
Fig.3.3 Commentary Control Unit rear panel.
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3.3.1 Monitor connections Various connectors are grouped under the “monitor” name, a description is given in this section. • COMMON AUDIO SIGNALS: There is a group of XLR connectors for common audio signals to all modules: IS1, IS2, CUE1, CUE2 and PA. Female 3 pin XLR connectors are fitted for these signals. These must be wired following the standard, using a cable fitted with a male 3 pin XLR connector. The following details the correct wiring connections.
1: ground 2: Signal V+ 3: Signal V• EXTERNAL LOUDSPEAKER: If required, one external loudspeaker can be connected to the internal audio power amplifier (8 Ω , 10 W maximum), by means of a standard 1/4 inch jack. This operation automatically disconnects the internal loudspeaker. The external loudspeaker is wired as follows: Tip: V+ Ring and sleeve : V- (ground)
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• REMOTE INTERCOM: Bantam-Jack type connectors for remote intercom are also found on this module. The intercom is wired through a bus tie-line, the jack IN defines the 4 wire signal input from the external intercommunicator at line level (0 dB nominal). The connector OUT carries the output signal to the intercommunicator, also at line level. All the remote intercom CCU inputs as well as the outputs are therefore wired in parallel. The remote intercom connectors are wired as follows: Tip: Signal V+ Ring : Signal VSleeve: Ground For both input and output jacks • SYNC When different CCUs are used at the same venue, the use of a single synchronous clock source for the whole installation is recommended. For this purpose there are two BNC connectors on each CCU. The first one, SYNC IN, serves for the connection of an external clock source. The second one, SYNC OUT, can be used for connection to the next CCU SYNC IN. The cable must be have 50Ω impedance (RG-58 or similar). If a valid clock signal is applied at SYNC IN, the CCU synchronizes its own internal clock to the external master signal, while at the same time generating a sync signal at SYNC OUT. If no external master clock is used, the CCU generates its internal clock and makes it available at SYNC OUT, in such a way that the first CCU can be used as the master clock source for the whole system. If the previously described daisy chain becomes broken by cable disconnection or equipment malfunction, the next available CCU will generate the master clock signal for the remaining CCUs. • RS 485 CONTROL PORT (See information regarding control software in chapter 4 of this manual). This is a bus type control cable formed by a simple pair of wires. Care must be taken to maintain the correct signal polarity (V+ and V-). This connection simply arranges all the CCU in parallel. The use of a shielded twisted pair is recommended, but a simple pair will work well in most cases. The Input connector accepts direct wiring, so no special connectors are required for this purpose.
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â&#x20AC;˘ RS 232 CONTROL PORT As mentioned before, the CCU control network uses an RS 485 interface. It is very unusual to have this kind of interface available at the control computer. For this purpose, each CCU have an RS 232 interface to RS 485 converter. The RS 232 port is then intended for connection of the control computer to the CCU control network. CAUTION: Only one RS 232 port connection is allowed in a given CCU control network. The user can choose the nearest CCU RS-232 port for computer connection, but only one can be used at any given time. The unit is fitted with a female DB 9 chassis mounted connector for configuration by an external computer communicating through RS 232 protocol. The active pins are as follows: RX TX GND RTS
2 3 5 7
The PC manual should be consulted for the serial port wiring.
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3.3.2 Specific external connections
AUXILIAY LINES
Three 50 pin CENTRONICS MALE type connectors are provided for fast connection of the PROGRAM, COORDINATION and AUXILIARY LINES circuits associated to each module.
The wiring to each of the connectors is as follows: AUXILIARY LINES: Line nº 1 2 3 4 5 6 7 8 9 10
wire 1 pin nº 1 2 3 4 5 6 7 8 9 10
wire 2 pin nº 26 27 28 29 30 31 32 33 34 35
PROGRAM AND COORDINATION CIRCUITS CONNECTION Line nº TX1 RX 1 TX 2 RX 2 TX 3 RX 3 TX 4 RX 4 TX 5 RX 5
V- pin nº 1 2 3 4 5 6 7 8 9 10
V+pin nº 26 27 28 29 30 31 32 33 34 35
Line nº TX6 RX6 TX7 RX7 TX8 RX8 TX9 RX9 TX10 RX10
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V- pin nº 11 12 13 14 15 16 17 18 19 20
V+pin nº 36 37 38 39 40 41 42 43 44 45
3.3.3 Individual CU connection • GUIDE and AUX signals. There are two connectors associated to each info signal: • IN Signal Input. • FOLLOW Output signal follower, allowing chained connections between different modules . • .AUXILIARY OUTPUTS There are two auxiliary outputs, one for the program and the other for coordination: PROG GO y CC GO. The following applications:
notes describe
some
of
the
NOTE 1 : In some special applications for concrete groups of commentators, the AUXILIARY OUTPUT PRG GO of a guide commentator is linked to the AUX IN of another, the same signal is repeated from the AUX FOLLOW to the AUX IN of the other CCU module, generating a chain of commentators who can listen to the guide commentator. NOTE 2 : In other special applications, one CU is programmed so that the COMMENTATOR 3 channel has the INTERCOM STUDIO as a toggle switch instead of PTT. This channel is assigned to a local producer who sends signals through AUXILIARY OUTPUT GO CC which are sent to a chain of commentators who can hear the commands from the producer as described in NOTE 1. . The connectors in the apparatus referred to in the above sections are jackbantam type and are wired in the following manner: Tip: Signal V+ Ring : Signal VSleeve : Ground Digital Commentary System -48-
â&#x20AC;˘ FUSE: A fuseholder with a slow-blow 1 Amp fuse is fitted for the prevention of short-circuits in the remote power supply to the associated CU. Any error in the polarity of the cable fitted with the RJ 45 connector which powers each CU, will not cause any problems, the error will be corrected automatically. â&#x20AC;˘ TO COMM UNIT: A data cable with an RJ 45 connector for the connection of a CCU with its associated CU is available.. The cable to be used will be of AWG24, STP or FTP category 5 type with 4 twisted pairs. This conection will include, at both sides, a ground shield. The male connector will be a RJ-45 type, shielded, AMP-5-569530-4 or similar. If a female-female extension is used, this one will grant the ground electrical continuity (shield). With the described cable, a length of 300 m. can be fitted. RJ45 MALE CONNECTOR
The wiring connections between the CCU and each of the CUs should be made without crossing the wires, they are connected to the same RJ 45 pin positions. The signals carried by each wire are as follows: FRONT VIEW
Wire Number 1 2 3 4 5 6 7 8
Pair Number/Colour 1 Green White 2 Orange White 3 Blue White 4 Brown White 4 Brown 3 Blue 2 Orange 1 Green
CU Connection DC mains 48V + Auxiliar line wire1 Tx V+ Rx V+ Rx VTx VAuxiliar line wire 2 DC mains 48 V-
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CCU Connection DC mains 48 V+ Auxiliar line wire1 Rx V+ Tx V+ Tx VRx VAuxiliar line wire 2 DC mains 48 V-
3.3.4 Mains switch, connector and fuses The CCU incorporates two power supplies to avoid breakdowns. Each one has a LED function indicator (DC OK) representing the individual correct work of this power supply. A mains switch and a fuseholder are fitted.
The power supply uses power factor correction techniques and autoranging, accepting from 90 V AC to 250 V AC. For maximum protection the following fuse types should be used: 220 V. 110 V.
4 A. slow blow type 8 A. slow blow type
Anyway you must never use a fuse for more than 16 A.
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COMM 3
COMM 3
COMM 3
COMM 3
COMM 3
COMM 3
COMM 3
COMM 3
COMM 3
COMM 3
LOC T'B
LOC T'B
LOC T'B
LOC T'B
LOC T'B
LOC T'B
LOC T'B
LOC T'B
LOC T'B
LOC T'B
LINEIDENTIFIER
LINEIDENTIFIER
LINEIDENTIFIER
LINEIDENTIFIER
LINEIDENTIFIER
LINEIDENTIFIER
LINEIDENTIFIER
LINEIDENTIFIER
LINEIDENTIFIER
PTT
LINEIDENTIFIER
COMM 1
COMM 1
COMM 1
COMM 1
COMM 1
COMM 1
COMM 1
MIC/LINE
MIC/LINE
MIC/LINE
MIC/LINE
MIC/LINE
MIC/LINE
MIC/LINE
MIC/LINE
COMM 2
COMM 2
COMM 2
COMM 2
COMM 2
COMM 2
COMM 2
COMM 2
Digital Commentary System
-51COMM 1
COMM 1
MIC/LINE
COMM 2
COMM 1
MIC/LINE
COMM 2
CUE
CUE
CUE
CUE
CUE
CUE
CUE
CUE
CUE
CUE
AUX
AUX
AUX
AUX
AUX
AUX
AUX
AUX
AUX
AUX
INTNLSOUND
INTNLSOUND
INTNLSOUND
INTNLSOUND
INTNLSOUND
INTNLSOUND
GUIDE
GUIDE
GUIDE
GUIDE
GUIDE
GUIDE
GUIDE
INTNLSOUND
INTNL SOUND
INTNLSOUND
GUIDE
GUIDE
INTNLSOUND
GUIDE
COMMON SIGNALS
AUDIO MODE
AUDIO MODE
AUDIO MODE
AUDIO MODE
AUDIO MODE
AUDIO MODE
AUDIO MODE
AUDIO MODE
AUDIO MODE
AUDIO MODE
3.4. Description and operation : the working surface panel
3.4.1 Introduction
CUE1
IS2
IS1 TX
COMMUNICATIONS
CUE2
PA COMMON SIGNALS
CCU ADDRESS
8 7 6 5
+ 14 + 12 + 10 +8 +6 +5 +4 +3 + 2.5 +2 + 1.5 +1 + 0.5 0 -0.5 -1 -1.5 -2 -2.5 -3 -4 -5 -6 -8 -10 -12 -14 -16 -18 -20
dBv
HEADPHONE LEVEL
TECH. HEADSET
PA
PROGRAM
TALK ON GO
MODULE SPECIFIC
IS 1 PRG GO
IS 2 CC GO
CUE 1 G UIDE
CUE 2
SELECTED MODULE
1 2 3
6
IS
7 8
INTERCOM
LOUDSPEAKER LEVEL
CO ORD
TALK ON F'B
LOCAL T'BACK ACTIVE REMOTE ACTIVE
LINE INPUTTO IDENT. REC.
Figure 3.4.1 shows the CCU front panel. 10 control modules (CM) are demonstrated, each one is associated to one CU, together with a monitor module (MM). A description of each follows.
3.4.2 Control module (CM) functional description Each control module (CM) is associated to one CU, with which it communicates and controls the inputs, outputs and routing. The functions of the control modules are as follows, proceeding from the top to the bottom: 3.4.2.1. CM: Upper section • PRG. GO, PRG F’B, CC GO, CC F’B: These trimmers can be used for fine adjustment of the referred signal levels. • CU STATUS: A three color led indicates the state of the CU associated to the CCU: -Red: No conection with CU or CU not present. -Green: CU connected and operative. -Orange: CU connected but not functional. • VU.: The 10 led VU-meter for each channel measures the audio output level from the module’s principal output (PRG GO): this audio is selected by the AUDIO MODE selector which id described later. • VU-REF.: This trimmer can be used for the fine adjustment of the VUmeter reference level. • AUDIO MODE. This switch selects one of the three available audio modes : OSC. Internal sine-wave generator. It generates a 1kHz tone for PRG and a 2 kHz tone for CC. To activate OSC mode from PROG mode, it is required to push twice OSC, once to disconnect PRG output (turning off PRG led) and another time to activate OSC output. ID. Selecting this mode enables the reproduction of the previously stored identification messages in the PROG and COORD circuits. To activate ID mode from PRG or OSC mode, it is necessary to push first OSC to disconnect the active output (turning off the PRG or OSC led). Digital Commentary System -52-
Then, ID may be pushed, turning on his led and starting the message reproduction. NOTE 1 : In units with software versions preceding to CU V3.2 ( for the CU ) and CM V3.4 and V3.5 ( for the Control Modules ), the ID mode cause the interruption of the connection CU-CM, changing to redcolour the indicator CU STATUS on the CM, the CONTROL CONNECTED arrow on the CU switchs off, and the communication and signalling sends in both ways are interrupted. NOTE 2 : In units with software versions CU V3.2 ( for the CU ) and CM V3.4 and V3.5 ( for the Control Modules ) the ID mode does not interrupt the connection CU-CM, being active the communications with the CU but disabling internally the International Sound ( IS )and ProgramDLP´s. When changing again to PROG mode they will be activated if those were connected. NOTE 3 : It must be checked not to connect CU´s with software versions previous to CU V3.2 to Control Modules with versions V3.4 or V3.5 since it may cause failures in the audio. PRG Activating this mode, the program emanating from the controlled CU is sent by the PRG GO output, which can carry a mix of International Sound (IS) if this has been incorporated by the IS controls that are described later. At the same time, in this mode, the coordination signals that flows from the controlled CU is sent through the CU GO output. The CU STATUS LED must light green and the PRG red led must be on, without blinking to enable that PRG GO and CC GO from the CU can be sent. This led must blink when this circuits are broken by effect of the intercom. To change from OSC or ID mode to PRG mode the OSC key is used as a escape key, so, OSC must be pushed to turn off the OSC or ID led and then push PRG. • CONNECT TO MONITOR MODULE. This push button connects the monitor module (MM), at the same time it disconnects from the monitor module (MM) the previously selected module (CM).
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3.4.2.2. CM: INTNL SOUND section • MIX. LEVEL. Controls the mix level of IS signal with PRG. The mixed program is formed composing the PRG (program) feed, coming from the Commentary Unit, and the selected International Sound (IS). The IS signal is also previously processed by an DLP (Dynamic level processor) algorithm, which can be software configured. The IS input level is controlled by means of a rotary potentiometer. This control acts on the IS level already processed and incorporated at a fixed program level. • IS SOURCE There are two available International Sound connections, IS1 and IS2. Only one of them can be connected at a time to the control module. The selected one may be sent to the Commentary Unit and is then mixed with the PRG (program) signal to form the composed PRG that is sent to the IBC. • IS MIX ENABLE. This switch, when activated, enables the selected international sound to be mixed with the program. It does not effect the IS send to the headphones of the commentators at the associated CU which is always available. NOTE: The IS MIX ENABLE blinks when, from a CU programmed to use the TAPE CHANNEL ON as IS control, IS has been deactivated : because CHANNEL TAPE is used to send its source to program or because that switch has been used to deactivate IS. When CHANNEL TAPE is broken (deactivating CHANNEL ON), the IS that was broken will be restored.
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3.4.2.3. CM : Reference signals control section : GUIDE, AUX, CUE
GUIDE
This section controls the independent level and connection to commentator headphones of the GUIDE signal that arrives to CM through GUIDE IN connector. â&#x20AC;˘ ENABLE: When activated, this switch permits the GUIDE signal to reach the headphones of the commentators at the associated CU. A trimmer is fitted for the fine adjustment of the referred signal level.
AUX This section controls the independent level and connection to commentator headphones of the AUX signal that arrives to CM through AUX IN connector.
switch permits the AUX signal commentators at the associated CU.
â&#x20AC;˘ ENABLE: When activated, this to reach the headphones of the
A trimmer is fitted for the fine adjustment of the referred signal level.
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CUE
This section handles the connection of common CUE1 and CUE2 signals to the Commentary Unit that arrive to MM through CUE1 and CUE2 connectors and establish the routing of CUE, LOCAL and RINGER signals to the commentators’ears. • CUE 1: The activation of this switch permits the CUE1 signal to reach the headphones of the commentators at the CU. The associated led will bright. • CUE 2: The activation of this switch permits the CUE2 signal to reach the headphones of the commentators at the CU. The associated led will bright. The CUE1 and CUE2 switches are not exclusive, therefore if both switches are activated, the two signals will reach the headphones. • CUE/LT’B ROUTING: This switch routes the CUE LT’B (Local Talkback or intercom with the CCU) and RINGER signal or signals to the left, right, or both earpieces of the commentators at the CU. When it is successively pulsated, it switches these three options which are signaled by the left and right leds associated with each earphone.
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3.4.2.4. CM : CU channels control section: COM1,2,3 and MIC/LINE COM 1, 2, 3,
There are three identical sections which controls each one of the MIC input channels of the Commentary Unit. • FILTER: Activates a high pass filter. • PROCESSOR: Activates the digital level processor (DLP). If this is deactivated the dynamics will be natural. • ON/OFF: Commentator unit (CU) remote channel mute. This function is in parallel with the channel ON control at the CU. Neither the commentators nor the technician have priority, therefore the system responds to the last order it receives (toggle switch mode). CC F´B ENABLE : A switch which enables communication with the coordination circuit for the commentators who need it. This applies to the signals sent from the CU as well as the return signals. This affects to the coordination circuit (CC). This does’nt affect to the local technical circuits, Local T’back and Remote T’back, that are established at any position of this switch.
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MIC /LINE, This section controls the MIC/LINE input channels of the Commentary Unit (CU). • FILTER: Activates a high pass filter. • PROCESSOR: Activates a digital level processor (DLP). If this is deactivated the dynamics will be natural. • ON/OFF: Commentator unit (CU) remote channel mute. This functions in parallel with the CHANNEL ON control at the CU. Neither the commentators nor the technician have priority, therefore the system responds to the last order it receives (automatic commutation mode). If the associated CU has started with the INPUT TAPE WITHOUT IS MIX configuration (see 2.3.2.5), this control disables the send of IS to PRG GO causing the blinking of IS ENABLE on the INTL SOUND section.
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3.4.2.5.CM : LOCAL T’BACK section
On this section are controlled the local communication circuits establishment and indications between CCU technician and CU commentators. It is not possible to establish the LOCAL T’BACK circuit if the system is busy with other incompatible functions as: - INTERCOM is established from the monitor module (MM) to any circuit of any CU associated with the CCU. - 4 wire circuit is established with a REMOTE INTERCOM. - CM has its REC key on IDENTIFIER section in UNLOCK mode to record an ID message. • CALL RECEIVED: This indicator blinks, when there is a commentarist at the CU who wishes to establish communication. The indicator is reset on pressing CONNECT. • CONNECT: This push button establishes the circuit with the related channel illuminating the led associated with the switch and resetting the communication with any module that has been previously established. To speak, the button PTT must be pushed. (The PTT is described later in the monitor module (MM) section). This key is also used to call the commentator. This action causes to ring on the commentator side while pressed. When this key is pressed also causes the LCD on TECH COM1 in the CU to blink. All the commentators will listen the ringer and the technician to talk through the ear/s programmed with the CUE/LT’B ROUTING control on the CUE section previously described. To answer the call, a commentator must press the PTT button, called INTERCOM TECH, stopping the ringer and finishing the CU TECH COM1 LCD blinking. Both intercommunication circuits are independent, in such a way both technician and commentator may talk at the same time if both of them push its own PTT button. Several commentators may also answer the call at the same time, listening the technician their mixed voices. Digital Commentary System -59-
3.4.2.6. CM : IDENTIFIER (ID) section IDENTIFIER
The operator will carry out Recording Line Identifying message functions within this section. • LOCK & PLAY / UNLOCK: Switch will connect the Recording/PlayBack Circuit to the Recording Input or to the Play-Back Program Output respectively. This Program Output is the ID Option of the AUDIO MODE switch as described in section 2.3.2.1. With UNLOCK, the IDENTIFIER section remains active, locking the rest of the CM and its associated CU, causing to turn off the CM leds which indicate the non-useful options and turning on in red the CU STATUS indicator. With LOCK&PLAY, this section will remain deactivated, remaining activated the rest of the CM and its CU. The push button will not respond to switch from LOCK&PLAY to UNLOCK if, in the CM : - AUDIO MODE is in PROG mode (red led PRG on). - LOCAL T’BACK is in CONNECT mode (red led CONNECT on). - The remote intercom is in use with a CU associated to this CCU. - The MM INTERCOM is in use, associated to this CM circuit, i.e. a MM INTERCOM TALK red led is on, the MM SELECTED MODULE green led, corresponding to our CM is on and the PRG red led of AUDIO MODE in our CM is blinking. - If the MM intercom is in use, associated to a circuit from another CM, the push-button will respond but the REC PRG ID key will can not be used, so this operation must not be performed.
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• REC PRG ID : This push-button starts the recording for the program circuit, which can be stopped at the operator’s command, or when the maximum recording time (24 sec.) is reached. The REC indicator is illuminated during recording. When 5 seconds remain, the light will blink, and when the 24 second period expires without the recording being manually stopped by repressing the button REC. PRG ID., the recording process will stop and the indicator will be extinguished. While recording, the MM monitor line is opened to listen and check the signal that is being recorded. The system uses an internal G.722 audio compression algorithm to improve the frequency response of the solid state recorder. • REC CC ID : This push-button will start the coordination circuit recording, which can be stopped at the operator’s command, or when the maximum recording time (24 sec.) is reached. The REC indicator is illuminated during recording. When 5 seconds remain, the light will blink, and when the 24 second period expires without the recording being manually stopped by repressing the button REC. CC ID., the recording process will stop and the indicator will be extinguished. While recording, the MM monitor line is opened to listen and check the signal that is being recorded. The system uses an internal G.722 audio compression algorithm to improve the frequency response of the solid state recorder. • SOURCE SELECT : This switch allows the operator to chose between the two available Audio Sources for recording; Technician Microphone (TECH HEADSET) or the Line Input, both are located on the Monitor Module. Micro input (MIC) is the default selection when entering to UNLOCK mode. When “Mic” source is in use, it is necessary to mantain pressed PTT push button on monitor module, while recording, to enable micro input.
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3.4.3 Monitor module (MM) functional description The monitor module is situated at the right of the CCU. The following elements are accessible from the front panel: 3.4.3.1. MM : Upper section Groups all the elements over the speaker, dedicated to signals adjust, communications and monitoring. • COMMON SIGNALS ADJUST: Five trimmers are found at the top of the module, these allow the level adjustment of the analog signal input common to all the modules: International sound (IS) 1, : International sound (IS) 2, CUE 1, CUE 2 and Public Address (PA).
COMMUNICATIONS • CCU ADDRESS: This establishes the CCU address, which is configured between 0 and 31. The 6 dipswitches numbered 1 to 6 are used for this purpose. The following table indicates the switch settings for a determined address which will be reflected in the display. The dip-switch number 6 must be in position 0. The leds Tx and Rx indicate that data is being sent to, or received from, the control PC. switch position console nº 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
4 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
3 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
2 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
console nº 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
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switch position 5 4 3 1 0 0 1 0 0 1 0 0 1 0 0 1 0 1 1 0 1 1 0 1 1 0 1 1 1 0 1 1 0 1 1 0 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1
2 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
VU METER AND LOUDSPEAKER
The precision VU-meter peak-meter is calibrated in dBu. It is followed by the monitor loudspeakers, except when the local intercom circuit (LOCAL T’BACK ACTIVE) is activated. It is associated through the selectors related to the following signals: COMMON SIGNALS: This selector sends the external signals, common to all CM to the vu-meter peak-meter and the loudspeaker. These signals are measured after the trimmers described above, therefore this is a measure of the CCU input signal. The signals common to all modules are: IS 1 IS 2 CUE 1 CUE 2 PA
• MODULE SPECIFIC This selector sends to the vu-meter peak-meter and the loudspeaker the signals corresponding to the selected control module (CM). The module number selected by its “CONNECT TO MON” key is signaled by the corresponding “SELECTED MODULE”LED. The following signals can be selected for monitoring by a vu-meter peak-meter and a loudspeaker: Output : PRG GO, CC-GO. Input : PRG FB, CC FB, GUIDE, AUX, IS, PA. IS is the international signal IS1 or IS2 selected in the INTL SOUND section of the correspondent CM. PA is the copy in the CM of the only PA signal introduced in the CCU as COMMON SIGNALS. Digital Commentary System -63-
3.4.3.2. MM :Lower section Groups the elements located under the loudspeaker, dedicated to intercommunication, listening levels adjustment and headphone and ID input connections. INTERCOM This refers to the communication of CCU technician with the program (PRG) and coordination (CC) circuits. Circuit selection. By this function, the technician connects with the PRG and CC circuits of the selected module to communicate with them through his headphone. This connection has higher priority than manual signals of PRG and CC circuit that are interrupt while INTERCOM is active. A protection cover is installed by cause of the consequences of using this intercommunication while the programm is ON AIR. • PRG: Connects program circuit (PRG) to technician headphone. • CC: Connects coordination circuit (CC) to technician headphone. • RESET. Disconnects previously established intercommunication circuit and releases the PRG and CC circuits, standing this ones with its standard signals. • ROUTING selection. Once the circuit has been selected, allows to set the communication direction. • TALK ON GO: Technician communicates with IBC occupying the CCU output lines. PRG GO: Technician is in PRG circuit in GO direction, commentators output to program and feedback to commentators are cut, on the monitor appears the feedback that would enter to the CU and has been derived to intercom. CC GO: Technician is in CC circuit in GO direction, commentators output to CC and CC feedback to commentators are cut, on the monitor appears the feedback that would enter to the CU and has been derived to intercom.
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• TALK ON F’B: Technician communicates with the commentators occupying the feedback lines from the IBC.
PRG FB: Technician enters in PRG circuit in FB direction, PRG commentators output and FB to the commentators are cut. Technician microphone enters in FB direction and commentators PRG is monitorized.
CC FB: Technician enters in CC circuit in FB direction, CC commentators output and FB to the commentators are cut. Technician microphone enters in FB direction and commentators CC is monitorized. • TALK BOTH WAYS: Technician communicates in both ways, to IBC and to commentators.
PRG BOTHWAYS: Technician microphone enters in both ways of PRG circuit and the sum of commentators FB+PRG is monitorized but previous to technician microphone.
CC BOTHWAYS: Technician microphone enters in both ways of CC circuit and the sum of commentators FB+CC is monitorized but previous to technician microphone.
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NOTE: To connect the Intercom, the control module that controls the CU with which is required to talk must be connected to the MM. NOTE: If Intercom is active: - It is not possible to commute the audio modes on the CM. . It is not possible neither disconnect the CM nor connect another different one. - It is not possible to change the monitoring on the monitor module (MM). - It is not possible to establish the technician circuit (LOCAL T’BACK). - It is not possible to establish 4 wires (REMOTE T’BACK). - It is not possible to start an ID recording.
Other functions of Monitor Module (MM) • LOUD SPEAKER LEVEL / HEADPHONE LEVEL Two rotary pots allows the operator to adjust the Technicians Speaker and Headphones Output Level. • PTT. Activates the technician Microphone on a previously selected circuit. • LOCAL T´BACK ACTIVE: Indicates that the local intercommunication circuit is open. • REMOTE ACTIVE: Indicates that the intercommunication circuit is being used by the control computer operator (REMOTE INTERCOM), leaving the local intercommunication function without service. If LOCAL T’BACK ACTIVE and REMOTE ACTIVE are on at the same time, the control computer operator is talking with any commentator and is really using the intercommunication via. • RESET : Releases the established circuit, either LOCAL T’B one or 4 wire remote (REMOTE). • TECHNICAL HEADSET. Technician Headset connector. The connection is identical to the COMMENTARY MICRO-HEADSET described in section 2.3.1.1. • LINE INPUT TO IDENT REC. Line Input connector directly routed to Line ID for recording ID messages. The normal connection is identical to the TAPE described in section 2.3.1.1.
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3.5 Commentary Control Unit specifications (functional and physical) 1. Specific external connections 10 Auxiliary lines. 10 4 wire program circuits 10 4 wire coordination circuits
2. Common external audio signals International sound 1 (IS 1) International sound 2 (IS 2) CUE 1 CUE 2 Public address (PA)
3 Individual CU connections GUIDE Aux IN/FOLLOW Auxiliary output PRG GO Auxiliary output CC GO CCU digital,AUXILIARY and supply link
4. Others connections external speaker Remote intercom IN-OUT SYNC IN-OUT Control port RS 232 Control port RS 485
5. Control module functions Program meter AUDIO MODE selector : PRG, ID, OSC MM link CU status control International sound selection, dynamic process and program mix Guide , AUX and CUE selection CU modules remote control (ON, Filter, processor and CC F´B) Local intercom (LOCAL T’BACK) Line identifier rec and play Digital Commentary System -67-
6. Monitor module functions Common signal adjust Common and specific signal monitoring Program, Coord and Local circuits Intercom Remote intercom Communications interface 7. Size and construction. front : 19â&#x20AC;?x 9 u. (482,6 x 400) mm . deep : 300 mm. modular aluminum chassis
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3.6 Commentary Control Unit specifications (electrical) 3.6.1.- Analog characteristics measurement on Control Module. • GUIDE and AUX inputs: (Balanced by TRF) • Input impedance: > 6K5 Ω . • Nominal input level ( 0 dBu VU): 0 dBu. • Maximum input level for nominal adjustment: +18 dBu. • Adjustment range for 0 dBu VU: -7.4 dBu -- + 12.6 dBu. • Variation range on VU for Nominal Input:-12dBu -- +8 dBu. • Bandwidth: 20 Hz -- 18 Khz -1.3 dB; -14 dB a 20 Khz. • PRG and CC outputs: (Balanced by TRF) • Output impedance: < 75 Ω . • Nominal output level: 0 dBu. • Adjustment range: -14.8 dBu -- + 6 dBu. • Maximum output level: +20 dBu for 0.3 % THD 40 Hz.-- 15KHz. • Absolute noise: -63 dBu. • Auxiliary outputs: (Electronically balanced) • Output impedance: < 150 Ω . • Nominal output level: 0 dBu. • Adjustment range: -14.8 dBu -- + 6 dBu. • Output maximum level: +20 dBu para 0.3 % THD 40 Hz -- 15 KHz. • Absolute noise: -63 dBu. • PRG F/B and CC F/B inputs: (Balanced by TRF) • Input impedance: > 6K5 Ω • Nominal input level ( 0 dBu VU): 0 dBu. • Maximum input level for nominal adjustment: +18 dBu. • Adjustment range for 0 dBu VU: -7.4 dBu -- + 12.6 dBu. • Variation range in VU for Nominal Input:-12dBu -- +8 dBu. • Bandwidth: 20 Hz -- 18 Khz -1.5 dB; -12 dB a 20 Khz.
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• Program VU: • PRG output range that allows adjustment at 0 dB: -5.3dBm --+23 dBm.
3.6.2.- Analog characteristics measurement on Monitor Module. • Common Line Inputs: IS’s, CUE’s y PA. (Balanced by TRF) • Input impedance: > 6K5 Ω . • Nominal input level ( 0 dBuVU): 0 dBu. • Maximum input level for nominal adjustment: +17 dBu. • Adjustment range for 0 dBu VU: -8 dBu -- + 12 dBu. • Variation range at VU for nominal input: No VU adjustment. • Bandwidth: 20 Hz -- 18 Khz -1 dBu; -12 dB a 20 Khz. • EXT and LINE line inputs: (Balanced by TRF) • Input impedance: > 6K5 Ω . • Nominal input level ( 0 dBu VU): 0 dBu. • Maximum input level for nominal adjustment: +17 dBu. • Adjustment range for 0 dBu VU: -10 dBu -- + 10 dBu. • Variation range at VU for nominal input: No VU adjustment. • Bandwidth: 20 Hz -- 20 Khz -1 dBu. • Micro input: (Balanced by TRF) • Input impedance: > 3 KΩ . • Nominal input level ( 0 dBu VU): -60 dBu. • Maximum input level for nominal adjustment: -41 dBu. • Adjustment range for 0 dBu VU: -53 dBu -- - 69 dBu. • Variation range at VU for nominal input: No VU adjustment. • Bandwidth: 20 Hz -- 20 Khz -1.5 dBu. • EIN ( G = 60 dB): -117 dBu. • EIN ( G = 69 dB): -122 dBu. • EXT output: (Balanced by TRF) • Output impedance: < 150 Ω . • Nominal output level: 0 dBu. • Maximum output level: +17 dBu. • Absolute noise: -63 dBu. Digital Commentary System -70-
• Headphone output: • Nominal load impedance: 2 x 400 Ω . • Output nominal level: +20 dBu, with potentiometer at maximum. • Maximum output level: +20 dBu. • Absolute noise: -39.5 dBu. • Output power ( Over 400 Ω . ): 2 x 150 mW. • Loudspeaker output: • Nominal load impedance: 16 Ω . • Output nominal level: +12 dBu, with potentiometer at maximum. • Maximum output level: +20 dBu. • Absolute noise: -50 dBu. • Output power ( Over 16 Ω . ): 3.75 W.
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4. CONTROL SOFTWARE The AEQ Commentary System control software will be described in this section. This is the first occasion that this feature has been included in a commentary system, and it permits great flexibility in the configuration, operation and maintenance of the system. 4.1 System overview In a standard configuration, the AEQ Commentary System will have several Commentary Units (CUs) at a venue, wired in groups of a maximum 10 units, connected to each Commentary Control Unit (CCU). The CCUs will be installed in the Commentator control room at each venue. Software control of the Commentary System is used in order to avoid: • The necessity of using an operator for the management of each CCU. All the CCUs can be managed ON LINE from the control computer. • The necessity of setting the configuration of each CCU and CU separately. Every unit can be set and managed by the control computer. The Commentary System software control can be used in two different ways: • OFF LINE : By previously configuring the complete Commentary System to be implemented at a venue, i.e. programming all the functions of all the CCUs, CMs and CUs. The desired configuration can be saved in a data base and later transferred to all the CCUs, CMs and CUs when the System is switched on. When the pre-programmed configuration is transferred to the system, the software is able to detect installation errors and inconsistencies, therefore saving time for testing the system. • ON LINE : Controlling and modifying a CCU, CM and CU network or a STAND ALONE CU in real time. This process is described in detail in the following sections. These two ways of controlling the CCU are implemented through two different software modules. These two different programs are called “DCS Engineering Planning” for the off-line configuration and “DCS Realtime Control” for the online configuration. Besides this, a third module is include to upgrade the firmware software if needed (“DCS Firmware Upgrade”).
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4.1.1. System description The system allows the following functions to be performed: • Control • Monitorization • Definition of configurations and parameters • Software upgrades These operations can be performed: • In any given CU • In any given individual CCU control module • In all the CCUs in the system • In the entire CCU/CU system 4.1.2 System requirements The system’s functional requirements are determined by the Operating System to be used: Windows 95 or Windows NT . These operating systems establish the minimum processor and available RAM memory specifications necessary in the computer. The minimum Windows 95 configuration would be a Pentium family processor with 16 MB RAM memory. Software installation requires 3 MB hard disk space, and a maximum of 20 MB for user configurations. A mouse and another free serial port are also required.
Windows 95 and Windows NT are registered trademarks of Microsoft Inc.
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4.2 Wiring the control network The system comprises a control computer that is connected to a CCU through a serial port using RS-232 protocol. The CCU control network uses an RS-485 interface. It is very unusual for this kind of interface to be available as a standard fitting on the control computer. For this purpose, each CCU offers an RS-232 to RS-485 interface converter. The RS-232 port is intended for the connection of the control computer to the CCU control network. CAUTION: Only one RS-232 port may be connected in any CCU control network. i.e. The user may choose the most convenient CCU RS-232 port for the computer connection, but only one can be used at any given time. With all the CCUs connected to the control computer, each console is able to introduce control data into the data stream which is interchanged with the related CU. In this way, the control computer is connected to every CCU and CU at the venue and is able to modify the control data for their configuration and monitorization.
fig 4.2 Control Network Digital Commentary System -74-
4.2.1 CCU wiring It is necessary for each CCU to be configured with an address number so that they can communicate with the control computer. Addresses from 0 to 31 are selectable and are set by the individual dip switches as detailed in section 3.4.3 in the CUSTOMERâ&#x20AC;&#x2122;S MANUAL. RS-485 control port: This is a bus type control cable made by a simple pair of wires. Care must be taken to maintain the correct signal polarity (V+ and V-). This connection simply arranges all the CCUs in parallel. The use of a shielded twisted pair is recommended, but a simple pair of wires will work well in most cases. The Input connector accepts direct wiring, so no special connectors are required for this purpose.
4.2.2 Control computer wiring Each unit is fitted with a female DB 9 chassis mounted connector for configuration by an external computer communicating through RS-232 protocol. The active pins are as follows: RX TX GND RTS
2 3 5 7
The pin-out of the wire that connects the computer with the CCU is the following : CCU : DB-9 MALE PC : DB-9 FEMALE 2 -------------------------------------- 2 3 -------------------------------------- 3 5 -------------------------------------- 5 7 -------------------------------------- 7
CCU : DB-9 MALE PC : DB-25 FEMALE 2 -------------------------------------- 3 3 -------------------------------------- 2 5 -------------------------------------- 7 7 -------------------------------------- 4
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4.3 Software installation Software installation is a simple procedure. It operates like any standard Windows 95 application installation. There is one CD ROM for the installation of Manuals and Software: The procedure to install is as follows: Manuals: - Hard Disk Installation: Run \English\Manual\SETUP.EXE - View from CD-ROM: Double Click \English\Manual\MANUAL.DOC Software (full version): - Digital Commentary System: Run \English\Digital Commentary System\Install\SETUP.EXE - DCS Firmware Upgrade: Run \English\DCS Firmware Upgrade\Install\SETUP.EXE Software (demo version): - Digital Commentary System: Run \English\Digital Commentary System\Demo\SETUP.EXE - DCS Firmware Upgrade: Run \English\DCS Firmware Upgrade\Demo\SETUP.EXE
*Windows 95 and Windows NT are registered trademarks of Microsoft Inc.
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4.4 Using the DCS Realtime Control software in a control network 4.4.1 General overview The control software allows the user to configure and manage the Commentary Control Units and Commentary Units that are connected to the computer through a network or directly through a serial port. In this section, the control network mode will be described. The control of an unique CU will be described in section 4.5. The main screen is divided into a menu section (at the top of the screen), a shortcut button section (beneath the menu), and a client section where all the windows will appear (see fig. 4.4.1).
fig. 4.4.1 DCS Realtime Control software main screen The main menu has four options that are described below:
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• File option: Allows the user to select between Direct Connection (PC directly connected to a CU) or Network Connection (PC connected through a CCU) and exit from the application. • Setup option: Calls the connection configuration screen to set up the communications. • View option: Calls the network management screen (or the Commentary Unit Management screen when Direct Connection is selected). • Help option: About screen. There is a total number of 7 buttons although some of them may be hidden depending on the window selected on the client area. They are only shortcuts to the main options of the application. The function of each button, from left to right, is the following : • View network • Open unit • Zoom out • Zoom in • Expand • Collapse • Network setup At right side of the shortcut panel there is a section labeled CALLS PENDING (only when Network Connection is selected). This section contains a list of the calls that have been received from any CU and have not been answered yet. The computer user may view this list and attend to this calls by selecting the corresponding CU and initiating a communication with it. As the calls are answered, the calls are deleted from the list. To select between a network connection or a direct connection to a CU, the option File of the menu bar must be used. If the sub-option Direct Connection is selected, the subsequent behavior of the program is described in section 4.5. On the other hand, if Network Connection sub-option is selected, the user will be asked to select a pre-stored configuration. This configurations are created through the “DCS Engineering Planning” software which is explained in section 4.6. The user must select one of this configurations that will be used as a template for the actual network.
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4.4.2 Setting the network operational parameters Network operational parameters are set by selecting the Setup option from the menu bar /fig. 4.4.2.1.A). This menu has 2 different options : â&#x20AC;˘ Network Connection : When this option is selected, the Network Setup window is opened. In this window, all the parameters for the communication with the total network are set. â&#x20AC;˘ Direct Connection : When this option is selected, the Direct Setup window is opened. In this window, the parameters for the direct connection with a CU are set. This window is described on section 4.5.1 of this handbook. When the option Network Connection is selected, the Network Setup window appears. This window is divided into three sections that focus on a specific set of parameters. Each section can be selected by pressing on the label at the top of the window. The OK, Cancel and Apply options apply to the parameters set in the 3 labels. Following, each set of parameters are explained. Network connection
fig. 4.4.2.1.A Network connection screen
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This is the first section of the Network Setup window and is intended for the configuration of the computer to network access parameters (see fig. 4.4.2.1.A). As the network is a serial bus structure, the first task is to configure which of the computer’s serial ports is connected to the network and the communications parameters to be used. The following parameters can be set: • Port: Selection of the computer serial port to be used (COM1, COM2, COM3, etc.). • Baud rate: The communication speed in baud (not changeable). • Data bits, Stop bits and Parity (not changeable). • Enable long delay timeout: When the computer establishes communication with network connected devices, it needs to send data and wait for the response. If the communication conditions are degraded for any reason, the user can increase the waiting time by enabling this option. This option is not implemented yet. Network map
fig. 4.4.2.1.B Network map screen
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This window allows network scanning to determine the number of Commentary Control Units (CCU) and Commentary Units (CU) that are connected and operative (see fig. 4.4.2.1.B).
When the Test button is pressed the computer will begin to scan the network searching for CCUs. Each CCU has its own unique node address. When a CCU is detected, the computer will obtain information regarding the number of CMs and CUs that are controlled by this CCU. The total amount of CCUs, CMs and CUs found in the network are displayed in the Total CCU, Total CM and Total CU fields. Additionally, the computer displays the highest CCU address found in the network. The control computer uses polling methods to scan and detect network components. It starts from the lowest address (0) and then it explores every consecutive address, and stores the addresses, as used or unused, in a memory map. This information is then used for network polling in two different ways: â&#x20AC;˘ For valid addresses: the computer continuously polls valid addresses using short time periods. â&#x20AC;˘ For unused addresses: the computer performs statistical polling in a less restrictive time schedule. This approach ensures a faster response to existing CCU requirements, while newly introduced network components will require more time to be recognized. Setting the maximum node address number prevents the control computer from scanning the network above this address, thus giving a faster response to changing situations.
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Network Configuration
fig. 4.4.2.C. Network configuration screen This screen is intended to send the network configuration stored in the PC to the actual network. As will be described later, each device on the network may have an associated profile retrieved from a configuration file. This file is created with the DCS Engineering Planning program and contains the profile of the devices (CCU, CM and CU). When this option is selected, a list of the profiles appears on the left list (see fig. 4.4.2.C). When the Send Profiles button is pressed, all this profiles are sent to the actual devices on the network. With this process, all the devices are configured as planed before with only one step. As the network profiles are updated, the result appears on the right list. This action is also selected by pressing the rightmost shortcut button (Network Configuration). The configuration of the elements in the network are set in real time, i.e., not when OK or Apply buttons are pressed. Digital Commentary System -82-
4.4.3 Commentary System Network screen To activate the Commentary System Network Screen, the user can select the menu View and the submenu Network or directly press the Network shortcut button. This window displays the configuration of the total network in a tree structure (see fig. 4.4.3). The main node of this tree represents the computer that is running the control software. Under the computer node, each of the CCUs found in the network appears represented by a subnode. In the same way, each CCU has subnodes representing each control module which can be connected to a CU.
fig. 4.4.3. Commentary System Network screen Each branch in the tree can be expanded or collapsed using the two buttons that appear in the shortcut button bar or double-clicking on the selected node.
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Each object in the tree can be selected to view and manage its configuration. There are several ways to open a specific object, as follows: • Pressing the open shortcut button. • Selecting the menu item Open in the View menu option. • Selecting the object with the right button of the mouse and selecting the option Open in the contextual menu that appears. The kind of window that appears depends on the type of object selected. These windows are described in the following three sections. Note that this tree may represent some elements that are not currently connected to the actual network. This is because they were defined in the network configuration that was loaded when the Network Connection was selected (see 4.4.1). In this case, this elements will be marked with a “Pass forbidden”signal. On the other hand, elements that were not defined in the loaded configuration but have been found in the actual network will be represented, but without any name. An asterisk sign(*) following the name of an element means that this element possess a pre-configured profile. So, if the total configuration of the network is transmitted to the actual network, the configuration of this profiles will be stored on the actual devices. For more information about profiles, see 4.6 section about “DCS Engineering Planning”software. If right mouse button is pressed over an element marked with (*), a menu with the option “Send Profile” will appear. This option allows the user to send the profile assigned to that element to the actual element in the network. In this case, only an independent profile will be sent, to fix, for instance, a previous transmission error.
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4.4.4 Commentary Control Unit monitor screen Activation The user can select the Commentary Control Unit monitor screen through the Network screen. The corresponding Control Unit can be identified and selected as described in section 4.4.3. of this manual. Each object in the tree can be selected for viewing and configuration. There are several ways to open a specific object, detailed as follows: • Pressing the open shortcut button. • Selecting the menu item Open in the View menu option. • Selecting the object with the right mouse button and selecting the Open option in the contextual menu that appears.
fig. 4.4.4. Commentary Control Unit
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Header line. In the upper part of the screen operating zone, there is a header line which displays the legend "Commentary Control Unit”, which identifies the type of object being controlled by the screen, that is to say, a CCU. Module Selector. A 10 key selector, marked 1 to 10, can be found below the line identifier, these correspond to the CONNECT TO MONITOR MODULE keys in each of the line modules as described in section 3.4.2. of this manual. When a key is “Clicked” with the mouse left button, the key appears to collapse and is displayed in a clear grey color. This is the equivalent of the illumination of a LED “selected module" as described in section 3.4.3. of this manual. The CMs not present but included on the network structure will appear in a disabled mode and can not be selected. Alternately, when a key is pressed the “zoom +” shortcut becomes active and allows selection of the Commentary Control Module screen, a second press selects the associated Commentary Unit screen. CCU Address. The number identifying the position within the Commentary System Network can be found in the CCU Address field, to the right of the module selector. CU Status. 3 color CU status indicators are found beneath the module selector. As described in section 3.4.2., they signal: Red: Orange: Green:
No CU connected CU connected but reporting a transmission error CU connected and operative
Common signals. This selector is a replica of that described in section 3.4.3. of this manual. It permits the selection of the common signal (IS1, IS2, CUE1, CUE2 or PA) that will be monitored via the intercommunicator associated with the control PC position.
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Module Specific: This selector is a replica of that described in section 3.4.3. of this manual. It permits the selection of a specified signal from the selected module (PRG GO, PRG F'B, CC GO, CC F'B, Guide, Aux, IS or PA) for monitoring through the intercommunicator. Local T'Back: This indicator is equivalent to the Local T'Back active (USED) described in section 3.4.3. The options are: USED: Indicates that a local intercommunication circuit is open. READY: Indicates the intercommunication circuit is free. To take control of this circuit, you must stay on the Commentary Control Module screen. Remote 4w Box : This section is intended to redirect the Local T’Back circuit to a remote 4w box connected to the CCUs. There are 2 buttons : Connect : Reset :
Connects the external 4w box to the Local T’Back circuit. Disconnects the external 4w box from the Local T’Back circuit.
When this connection is made, the number of the CCU connected to appears on the display labeled Active. This indicator is a replica of that described in section 3.4.3. Monitoring and Intercom: Signals can be remotely monitored in each CCU and communications established with the users of the corresponding CU. The working area of this screen - Common signals, Specific Module and CU intercom - allow the selections to be made. This is carried out through a 4 wire equipment intercommunicator that must be wired to the Remote Intercom IN-OUT connector of all the CCUs. The wiring is as follows: - The operator’s intercommunicator OUT is connected in parallel, (through a tie line), to the Remote Intercom IN connector of all the CCUs. - The operator’s intercommunicator IN is connected, in parallel (through a tie line), to the Remote Intercom OUT of all the CCUs. Digital Commentary System -87-
4.4.5 Commentary Control Module screen Activation: The user can activate the Commentary Control Module screen by selection through the Network screen. First, this will identify the corresponding Control Unit, and within this, the selected line module. This operation is described in section 4.4.3. of this handbook. Each object in the tree can be selected for viewing and configuration. There are several ways to open a specific object, detailed as follows: • Pressing the open shortcut button. • Selecting the menu item Open in the View menu option. • Selecting the object with the right mouse button and selecting the Open option in the contextual menu that appears. • On the Commentary Control Unit screen, selecting the Control Module number and the Zoom In shortcut button.
fig. 4.4.5. Commentary Control Unit
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Header line. In the upper part of the screen’s operating zone, there is a header line which displays the nomenclature of the Commentary Unit (CU) which is in service, in this case "NONE" because it has no name, before the legend "Commentary Control Module”, which identifies the type of object being controlled by the screen, that is to say, a CCU line module. Audio Mode: • A soft replica of the Audio Mode switch, as described in section 3.4.2. of this manual, is represented in the upper left part of the screen’s operating zone. This switch selects one of the three available audio modes: Osc. Internal sine-wave generator. IDENT. Selecting this mode enables the reproduction of the previously stored identification messages in the PROG and COORD circuits Prog/ IS The program emanating from the controlled CU, which can carry a mix of International Sound (IS) if this has been incorporated by the IS controls. CU Status The CU status indicator, which indicates the state of the CU associated to the line module, can be found immediately under this switch: Red: Orange: Green:
No CU connected CU connected but reporting a transmission error CU connected and operative
International Sound The International Sound working area can be found to the right of the soft replica Audio Mode switch, as described in section 3.4.2. of this manual. The following controls and indicators can be found: • IS MIX ENABLE. When activated, this enables the selected international sound to be mixed with the program. This does not effect the IS send to the commentators’headphones at the associated CU, where it is always available. • MIX. LEVEL. BUTTON INDICATOR. Indicates the position of the mix level potentiometer in the corresponding CCU line module. Digital Commentary System -89-
• IS SOURCE There are two International Sound connections available, IS1 and IS2. It is only possible to connect one at a time to the control module. Once selected, the source is mixed with the PROGRAM signal, and can be sent to the Commentary Unit for listening.
The following buttons can be found in the lower part of the International Sound working area: CONFIG.DLP. Activates the corresponding DLP International Sound input configuration screen. The DLP configuration screen procedure is detailed in section 4.4.6.2.3. of this manual. DLP. Activates the DLP corresponding to the International Sound input. A simulated green LED indicator signals activation. The DLP function is detailed in section 4.4.6.2. of this manual. Guide - Aux. The GUIDE and AUX switches and indicators can be found beneath the International Sound working zone, these are replicas of the GUIDE ENABLE and AUX ENABLE, that are described in section 3.4.2. of this manual. Address. The Address window, which displays the CCU and line number corresponding to the module under control, can be found to the right of the International Sound zone. CUE. The CUE working zone can be found beneath the Address window, a replica as described in section 3.4.2. of this manual. This handles the connection of CUE1 and CUE2 signals to the Commentary Unit. • CUE 1: The activation of this switch sends the CUE1 signal to the headphones of the commentators at the CU. • CUE 2: The activation of this switch sends the CUE2 signal to the headphones of the commentators at the CU. The CUE1 and CUE2 switches are not exclusive, therefore if both switches are activated, both signals will reach the headphones.
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• CUE Routing: This switch routes the CUE signal or signals to the left, right, or both earpieces. If it is pressed repeatedly, it switches these three options which are signaled by the left and right LEDs associated with each earphone. Line identifier: The Line Identifier state indicators can be found beneath the CUE working zone, as described in section 3.4.2. of this manual. LOCK & PLAY. Displays the possibility of reproducing the identifier signal. UNLOCK. Ready to record: unlocked. In this case the Audio Mode selector can not receive the ID signal. The following working zones occupy the lower half of the screen: COMMENTATOR 1, 2 and 3. There are three identical sections which control the Commentary Unit MIC input channels, these replicate COM 1, 2 and 3 on the equipment’s working panel. • DLP (Digital Level Processor): Activates a multifunction dynamic processor. If this is deactivated the dynamics will be neutral. • HPF (High-Pass Filter): Activates a high pass filter. • INPUT (ON/OFF): Commentator unit (CU) remote channel mute. This function is in parallel with the CU channel ON control. Neither the commentators nor the technician have priority, therefore the system responds to the last order it receives (toggle switch mode). • CC F’B ENABLE: A switch which enables communication with the coordination circuit for the commentators who require it. This applies to the signals sent from the CU as well as the return signals. MIC/TAPE (MIC /LINE): This section controls the Commentary Unit MIC/LINE input channels. • DLP (Digital Filter Processor): Activates a multifunction dynamic processor. If this is deactivated the dynamics will be neutral. • HPF (High-Pass Filter): Activates a high pass filter. • INPUT (ON/OFF): Commentator unit (CU) remote channel mute. This function is in parallel with the CU control, which gives control to the commentators. Neither the commentators nor the technician have priority, therefore the system responds to the last order it receives. Digital Commentary System -91-
CU INTERCOM The CU INTERCOM zone is situated in the right hand column of the working surface. CONNECT. This button establishes the intercom circuit with the operators of the console corresponding to the line module (this operates through the 4 wire software intercommunicator). The left mouse button actives the RING to alert the corresponding CU operators. RESET De-activates the intercom circuit, leaving it free. LOCAL T´BACK: Indicates the intercommunication circuit status. When CONNECT is activated, USED is shown, and the allotted circuit is left to the operator software. When reset, READY is shown, and the facility is left available for any user. Remote 4w Box In this section is indicated if the Local T’Back circuit is redirected to an external 4w box. This connection is independent from if Local T’Back is activated or not.
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4.4.6 Commentary Unit screen 4.4.6.1 The Commentary Unit screen The Commentary Unit control screen has a similar appearance to the actual Commentary Unit console (see fig. 4.4.6.1). The input channels are represented in this window.
Fig. 4.4.6.1 CU control screen Each channel contains the following: • Visual indicators that represent the status of the LEDs in the actual console (I.S., P.A., GUIDE, AUX and PROGRAM or MICRO and LINE IN or the MIC/TAPE channel). • DLP button that, when pressed, activates the console digital level processor. The processor configuration is set with theConfig DLP button. • HPF button that, when pressed, activates the console high-pass filter. The filter configuration is set with the Config HPF button. • INPUT button that, when pressed, enables the channel audio input. • Input gain control with adjustment from +10dB to -10dB. The gain value is shown on the center of the control. Digital Commentary System -93-
In addition, the Commentary Unit control screen contains the following items: • Switches configuration : A representation of the switches on the CU is shown. This configuration only can be changed on the actual CU. • Connection field: Indicates whether the CU is connected directly to the computer or if it is connected through the network. • Address field: When the CU is connected through the network, this field indicates the connection address. The address has the syntaxCCU: xx - CU: yy - Name where xx is the CCU address (from 0 to 31), yy is the number of the CCU control module to which the CU is connected (from 1 to 10) and Name is the name assigned to that CU.
4.4.6.2. Digital Level Processor (DLP) 4.4.6.2.1. Independence of the DLP in a CU Before configuring the DLP, it is useful to know how the DLP functions. It is important to clarify that each channel in a CU has its own DLP that can be independently switched on, but the four DLPs in a CU are programmed simultaneously, therefore it is not possible to set different dynamic curves in different CU channels.
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This simplifies operation, and avoids the situation where a commentator with a strong voice does not allow other commentators at the same CU to be heard.
Fig 4.4.6.2.1. CU functional diagram (partial)
4.4.6.2.2. DLP Transfer Function
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The diagram represents a hypothetical DLP configuration, set to user requirements. The X-axis represents Voltage dB input level and the Y-axis Voltage dB output level. The graph is a representation of the transfer function.
Fig 4.4.6.2.2. DLP Transfer Function The values represented on the axes are with reference to a -22dBv saturation level. If a nominal working level of 0dB is used, this would result in 22dBv headroom.
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The transfer function without DLP would be x=y which corresponds to the 45º line shown in the graph. The practical result in this situation is that there would be no modification in the dynamic range. The system will not allow any dynamic modification at less than -61dB below saturation level. Therefore with a total range of 80dB, a 1:1 enforced linear zone is obtained. If the broadcaster requires a linear response zone ± 4dB around his 0dB reference level, he can create a further linear response zone between -26dB and -18dB. A broadcaster may also require compression zones above and below his reference level, e.g. that signals ± 4dB from his reference level are compressed by a ratio of 2:1. In the graphic example shown, it is supposed that this compression is required between 4dB and 14dB below, and between 4dB and 10dB above his reference level of -22dB, i.e. -26dB to -36dB and -18dB to 12dB with reference to a 0dB saturation level. If no further compression zones are required between Vin=-36 and the enforced value, Vin=-61dB, then the range -36dB to -61dB will be subject to a 1:1.2 expansion ratio, therefore reducing the input noise level. Finally a powerful signal level limiter must be included for the limitation of input signals 10dB above the reference level. A 10:1 limiter is built-in to close the upper end of the curve for this purpose. The following section describes the programming of similar custom designed dynamic curves using the control software.
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4.4.6.2.3. Configuring the DLP When the DLP button is pressed, the Digital Level Processor window appears (fig. 4.4.6.2.3.A). This window is only intended to select a preprogrammed DLP transfer function. To select a previously set configuration, click on the selection list labeled Description. When a configuration is selected, its transfer function and other parameters are shown on each data field on the window.
fig. 4.4.6.2.3.A Digital Level Processor (DLP) window
The fields that are shown in this window are the following: • Points table : This table, on the upper left corner of the window represents the input-output coordinates of each point on the transfer function. The slope of each ramp between points is also shown. • Name : Description of the current DLP transfer function. • Operation level : Is the reference level of the transfer function. The transfer function always works 14dB over the operation level and 42dB below this one.
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â&#x20AC;˘ Transition level : is the separation between the upper and lower regions of the transfer function. This separation is used to apply the attack and release times. â&#x20AC;˘ Attack time and Release Time on the upper and lower regions : This four parameters show the attack and release time of the DLP on two separated regions of the transfer function : upper (above the transition level) and lower (below the transition level). If the selected DLP configuration is the required one, the OK or Apply buttons must be selected. If you need to change the configuration of the preprogrammed DLP or create a new one, then the Edit button must be pressed. When the Edit button is pressed, the current window change its appearance to the Digital Level Processor Editor (fig. 4.4.6.2.3.B). Within this window, the preprogrammed DLPs database is managed.
fig. 4.4.6.2.3.B. Digital Level Processor Editor window This window is very close to the DLP selection window. The differences with this one are the following :
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â&#x20AC;˘ A new set of buttons appear on the lower left side of the window. This buttons are used to manage the database. From left to right, their actions are the following : - Go to first record - Go to previous record - Go to next record - Go to last record - Add a new record - Delete current record - Edit current record - Accept changes on current record - Cancel changes on current record
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â&#x20AC;˘ The attack and release times can be modified (we are editing the DLP). â&#x20AC;˘ A new button labeled Graphic appears. By pressing this button, the Digital Level Processor graphic Editor appears. Each record may be edited searching it with the database buttons and pressing the button for editing current record. At this state, any value can be modified (including the name of the configuration). If a new record is created, a name must be assigned to it. As explained above, when the Graphic button is pressed, a new screen appears (fig. 4.4.6.2.3.C).
fig. 4.4.6.2.3.C. Digital Level Processor Graphic Editor window This window is intended to edit the transfer function, the operation level and the transition level. This two last parameters have been previously explained and can be simply modified.
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The transfer function is composed by a maximum of 5 points. The lower point is always at the lower left corner and cannot be changed. The upper point has itx value (input level) also fixed to the maximum value. The other 3 possible points of the transfer function are defined through their coordinates on the table below or directly moving them with the mouse on the layout. To add a new point, the user must push the New button and then moving it to the desired position. To delete a point, it must be selected with the mouse on the layout or in the table and then push theDelete button. If you need to restart from a new layout, press the Clear button and a new layout, with only two points, will be created. When the layout is finished, the OK button must be selected to return to the previous window. 4.4.6.3. HPF button The HPF configuration window appears when this button is pressed.The user can select a filter type from a list of preset configurations. Each configuration is established by a cut-off frequency and a filter edge slope value (see fig. 4.4.6.3.).
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fig. 4.4.6.3. High Pass Filer (HPF) window
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4.4.6.4. Store audio parameters button In this window, the current CU configuration can be stored to a database, or alternately, to a specific CU preset configuration, the destination is user selectable. If the Commentary Unit label is selected, a preset configuration number (from 0 to 1) must be selected (see fig. 4.4.6.4.A). If the Database label is selected, the user must enter a name for the new configuration (see fig. 4.4.6.4.B)
fig. 4.4.6.4.A. Store audio parameters in commentary unit
fig. 4.4.6.4.B. Store audio parameters in database
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4.4.6.5. Retrieve audio parameters button With this option, the user can load a previously saved configuration from a preset CU configuration, selecting it by number (see fig. 4.4.6.5.A) or from the database, selecting it by name (see fig. 4.4.6.5.B).
fig. 4.4.6.5.A. Retrieve parameters from commentary unit
fig. 4.4.6.5.B. Retrieve parameters from database
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4.5. Using the control software in a direct connection The following section describes how a CU is configured and managed directly by the control software without using a CCU. To access at this option, the user must select the File option and the Direct Connection sub-option at the menu bar. Before accessing this option, the communications parameters must be set as described below. 4.5.1. Controlling a single Commentary Unit To control a single CU, it is necessary for the computer to be connect to the RS-232 port. The equipment features a chassis mounted female DB 9 connector for configuration by an external computer communicating through RS-232 protocol. The active pins are: RX TX GND RTS
3 2 5 7
For details of the PC serial port connection, consult the appropriate computer handbook. The configuration parameters must be set using the Direct Setup screen, similar to the CCU procedure as described in section 4.4.2. To access this screen select the option Setup on the menu bar and the Direct connection suboption
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Fig 4.5.1 Direct connection set up screen The first task is the configuration of the computer serial port connection to the CU and the communications parameters to be used. The following parameters can be set: • Port: It is possible to select the serial port of the computer to be used (COM1, COM2, COM3, etc.). • Baud rate: The communication speed in baud (not changeable). • Data bits, Stop bits and Parity (not changeable). • Enable long delay timeout: When the computer establishes communication with network connected devices, it needs to send data and wait for the response. If the communication conditions are degraded for any reason, the user can increase the waiting time by enabling this option. This option is not implemented yet. 4.5.2. Customizing the Commentary Unit audio parameters It is possible to define the value of each parameter for each console as explained in section 4.4.6.
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4.5.3 Remote control of the Commentary Unit using serial data transmission A CU can be controlled by the control software without using a CCU. If you wish to control remotely the CU through a ISDN connection using the data channel of an AEQ Codec, contact with AEQ technical staff, who will supply you of a software version with a data channel of 1200bps. Interconnection through ISDN must be highlighted due to the need for few technical resources and markedly improved operation:
Fig 4.5.4. Wiring CU- Control Computer by ISDN The local wiring is as follows: The CU output MIX OUT is connected to the audio input of a codec. The audio output of the codec is connected to the LEFT INPUT of the CU: this signal will be heard through the left earphone. The codecâ&#x20AC;&#x2122;s DATA PORT is connected to the CONTROL CONNECTION of the CU. The LOCAL PRG signal is sent to the right earphone. The codec is connected to a terminal adapter, and from the terminal adapter to a basic ISDN access. The remote wiring in the broadcast studio is as follows: The basic ISDN access to the terminal adapter and from here to the codec. The codec audio output to a mixer input channel. The codec audio input to the mixer mix-minus bus output. The codec data port to a serial port on the control PC. Thus the CU can be remotely controlled by the PC software from the control studio. The program can be sent to, and Fâ&#x20AC;&#x2122;Back received from, the studio simultaneously through the codec. The use of a digital, or alternatively analogue, route to send serial data, allows the CU to receive commands from the operating computer, and therefore permit it to function, although with some limitations, like a CCU. Digital Commentary System -108-
4.6. Using the DCS Engineering Planning software This software is intended to create and manage the configuration of the network composed by several Commentary Control Units (CCU), Control Modules (CM) and Commentary Units (CU). The difference with the software named DCS Realtime Control is that the managing of this network is made in an off-line mode. The network structures are stored in disk files, so that the user can manage as many configurations as desired. These configuration files may be retrieved by the DCS Realtime Control software in order to use them as a preconfigured vision of the actual network. The devices composing the network structure can receive standard configurations known as â&#x20AC;&#x153;profilesâ&#x20AC;?. These profiles may be assigned to several devices (CCU, CM, CU). So, the user may use standard profiles to be assigned to the devices that form the network, store several network structures and, then use them in the on-line control of the actual network. In the following sections, this program will be explained in detail.
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4.6.1. Menu options When the program starts, a plain window appears (fig. 4.6.1.). This window has a little menu bar with the following options : â&#x20AC;˘ File - New : Creates a new blank configuration file. - Open : Open a existing configuration file - Configurations : Used to import, export and delete configuration files. â&#x20AC;˘ Help : Calls the About window.
Fig. 4.6.1. DCS Engineering Planning main window
Following, each of the File options are described.
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4.6.2. Creating a new configuration file When the New sub-option of the File option is selected, a new empty network structure appears. The network is represented by a tree which main node is the Control Computer. So, the new tree only has one component (fig. 4.6.2).
Fig. 4.6.2. New network structure
When the window Structure is present, a new menu option appears : Tools. This option is used to make visible or invisible the 4 tools windows that appear on the right side of the main window. Through these tools it is possible to add and delete components in the network structure and assign them profiles. The File option changes also its sub-options. When the window Structure is present, these sub-options are the following: • New : Creates a new structure • Open : Opens an existing structure • Save : Saves the current structure with its own name Digital Commentary System -111-
â&#x20AC;˘ Save as : Saves the current structure with a new name â&#x20AC;˘ Close : Close the current structure. Once the new file has been created, there are several task to be performed in order to compose the total network structure. These tasks are described in the following sections. As the procedure to construct a new structure is the same than this for modifying an existing one, we will describe now how to open an existing structure and, then how to modify it. 4.6.3. Opening an existing structure When the Open sub-option of the File option is selected, a list of the existing structures appears. The user must select the desired structure by its name (fig. 4.6.2). When selected, the selected structure will appear in a window as the one described in the previous section.
4.6.3. Opening an existing structure Digital Commentary System -112-
4.6.4. Adding and deleting elements in the network structure Once the Structure window is opened, the 3 different types of components (CCU, CM, CU) may be added to the structure. This may be done through the Components tool window. The Components window contents an icon corresponding to each type of element. It has also an icon representing a trash box. To add an element to the structure, it is only necessary to drag and drop the desired element from the Components window to its position in the structure. Note that: • A CCU can only be added to the Control Computer. • A maximum of 32 CCU can be added to the Control Computer. • A CM can only be added to a CCU. • A maximum of 10 CM can be added to a CCU. • A CU can only be added to a CM. • Only one CU can be added to a CM. By this procedure, the entire network structure can be built. There is a quick procedure to add a complete rack to the Control Computer. This is made by pressing the mouse right button on the Control Computer and selecting the New Rack option on the menu that appears. If this option is selected, a new CCU with 10 CM and 10 CU is automatically created. When a new element is created, its identification number and name take default values. To change these values, the element must be selected and the mouse right button pressed. The options contained in the menu that appear are the following : • Edit Address : When selected, the user can assign a new adress number to the element. • Edit Name : When selected, the user can assign a newname to the element (not available on CCUs) • Expand Recursive : All the elements under the selected elements are shown. • Collapse Recursive : All the elements under the selected elements are hidden. • Full Expand : All the elements in the structure are shown. • Full Collapse : All the elements in the structure are hidden except the Control Computer. To delete an element from the structure there is 2 procedures :
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â&#x20AC;˘ Select the element and press Del key on the keyboard. A warning message will appear. â&#x20AC;˘ Drag and drop the element to the trash box.
4.6.5. Assigning profiles to the elements The DCS Engineering Planning software allows to create any number of elements profiles in order to assign them to the different elements of the structure. These profiles contain all the configuration parameters for that elements, so we have Control Unit profiles, Control Module profiles and Commentary Unit profiles. The managing of the different profiles is made by the 3 tool windows that appear on the right bottom side of the main window. All these windows has the same appearance (fig. 4.6.5)
Fig. 4.6.5. Sample Profiles window
These windows are divided into 2 sections: Special Profiles and Stored Profiles. Following, each of these sections are described.
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4.6.5.1. Special Profiles : <NEW> To select this option, double-click on the line <NEW>. When this option is selected, the configuration window corresponding to the type of element will appear. These windows are copies of those used on the DCSRealtime Control but having less elements, So, the components of these windows are a subset of the windows in the DCS Realtime Control. For a detailed description of this windows (fig. 4.6.5.1.A, 4.6.5.1.B and 4.6.5.1.C), see sections 4.4.4, 4.4.5 and 4.4.6 respectively on this manual.
Fig. 4.6.5.1.A. Control Unit Profile window
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Fig. 4.6.5.1.B. Control Module Profile window
Fig. 4.6.5.1.C. Commentary Unit Profile window Note that when you are changing parameters in any of this windows, you are not really changing any physical device. These parameters are only intended to be saved on a profile that will be assigned to an element of a structure that, later, could be transferred to an actual network.
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When a profile window is open, the options on the File menu bar change their meaning. In this case, the Save, Save as and Close options are referred to the profile configuration that is being edited. So, the following actions may be performed : • Save option : We will be asked to enter a name for the profile if it was not previously assigned. If the profile had already a name, then, it will be saved with no prompt. • Save as option : We will be always asked for a new name for the profile. Then, it will be saved. • Close option : The profile window will be closed. If it was not saved, the user will be asked to save it. This action is the same than closin the window through the button on the top right corner of the window. 4.6.5.2. Special Profiles : <NONE> This option is used to assign no profile to a device on the structure. It is used by dropping and dragging the proper <NONE> option to the desired element. This option is used as a procedure to “erase” the profile previously assigned to an element. Only is allowed to move this special profile to an element that corresponds with the profile window that is taken from, i.e. if we take the <none> profile from Commentary Unit Profile window, only can be moved to a CU, and so on. 4.6.5.3. Stored Profiles This section contains a list of the existing profiles. When a new profile is created, it must appear in this list. To assign one of these profiles to an element, it must be dropped and dragged from the profiles list to the desired element. As in the <none> profile, these profiles can only be moved to the elements that correspond with the profile window where have been moved from.
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APPENDIX 1: AEQ WARRANTY
A.E.Q. S.A. warrants, for one year period from the purchase date of the equipment, the free substitution at our Technical Service workshops, of any damaged or defective component due to manufacture error, including the labour required to carry on such substitution and the subsequent adjustment of the equipment. This warranty does not include transport, installation and setting of the equipment, nor cleaning or substitution of pieces subject to normal operative wear. This warranty also excludes any kind of failure or damage which are attributable to the improper use of the equipment, or to the handling by persons outside our Technical Service.
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