, SDH MDRS 155 E «Marconi» STM-1 SDH. SDH MDRS 155 E ,
STM-1 , SDH STM-4
. ,
SDH-
MDRS 155 E .
8 .
IC . , , , 16 STM-1
STM-4.
IC
, . (40 28
30
) 64 MLQAM
128 MLQAM.
(ATPC) .
,
, .
99,9%)
»
20 . ATPC
. MDRS 155 E SDH 13
.
.
MDRS 155 E STM-1
4
. , 64 MLQAM
,
128 MLQAM -
.
.
(XPIC).
, ,
SDH .
ETSI
19’’. .
.
.
, ,
.
.
, ,
.
.
.
XPIC,
.
.
1+1 RPS-H
Rx
OC#1
Rx Modem Unit and RPS Tx
Overhead Access Unit
Tx
32
1+1
Service/ Wayside Channels up to 2x2 Mbit/s, 12x64 kbits
.
n+2. 20
.
.
SDH, ETSI 20
,
483
(1
).
, . ,
n+2. n+1 n+2
.
,
.
14+2. MIC .
.
). :
,
/ RPS
.
.
, . 1+1
. . .
. . .
30-40
,
.
, ,
,
,
,
,
, .
.
3+1
RPS-C 4 Rx PC#1/OC#4 Tx
Modem Unit and RPS
Rx
OC#3 Tx CBN
155 Mbit/s RST functionality electrical (CMI) or optical (G.957 S1.1)
4 Rx
OC#2 Tx
Modem Unit
Service/ Wayside Channels up to 2x2 Mbit/s, 12x64 kbit/s
and RPS
Rx
OC#1
Overhead Access Unit
Tx
/RPS
64 SOH .
/RPS , ,
,
2
. STM-4 DPU STM-4, ,
, XPIC, SDH
STM-1, STM-4
. 2 SDH.
SDH.
.
,
(RFCOH) 64
, XPIC 2
STM-4
,
-
(FEC)
STM-4.
.
1 .
128
MLQAM
. STM-4
1+1. /2 )
22+1. . . ,
ASIC
, .
F-
STM-1 .
.
,
.
.
STM-4 . . , , 1, F1 STM-1
STM-
.
.
4. STM-1
2
STM-4
. STM-1. STM-1 4 "Unequipped
STM-
Signal”. 1+1
2+1.
STM-1 ServiceOn .
STM-4 4
Access «Marconi» , STM-1 (DCCr
«Marconi» ,
DCCr
DCCm), LAN QD2. DCCm,
64 MLQAM
,
13
128 MLQAM (CCDP) /2 ) (DFE), 22+1 XPIC
.
. OSI Q3 3+1
(QD2, OSI
,
ETSI/19''
TCP/IP) SDH
,
,
,
14+2
)
,
,
1+1
SNMP.
2 38
), , ).
,
1+1; –
»,
20
n+2 ServiceOn Access ,
STM-1,
,
.
«Marconi». «wayside» 2,048 F-
DRS 155/...-64 MLQAM 3.4 4.2 (ITU-R F.382) 3.4 3.9 (ITU-R F.497) 3.4 4.2 (ITU-R F.635) 4.3 5.0 (ITU-R F.1099) 5.6 6.2 (ITU-R F.497) 5.9 6.4 (ITU-R F.383) 6.4 7.1 (ITU-R F.384) 7.1 7.9 (ITU-R F.385) 7.7 8.5 (ITU-R F.386) 155 (STM-1), 622 64 MLQAM (40 ) 40 28/30
DRS 155/...-128 MLQAM 3.4 4.2 (ITU-R F.382) 3.4 3.9 (ITU-R F.497) 5.6 6.2 (ITU-R F.497) 5.9 6.4 (ITU-R F.383) 7.1 7.9 (ITU-R F.385) 7.7 8.5 (ITU-R F.386) 12.7 13.3 (ITU-R F.497)
(STM-4)* 128 MLQAM (28
XPIC(CCDP) )
XPIC(CCDP)
** 4
8
30,5 13
)
30,0 28,0
) DRS 155/...-64 MLQAM
DRS 155/...-128 MLQAM
ACDP 4
8
20,0 –
13 *** BER=10 –3 /BER=2x10–5 4 8,5 13 4 113
8,5
–75.5
20,0 16,0
/-74
–73.5 –72.5
– 1.1 dB –
/–72 /–71 1.4 dB 1.8 dB
140 STM-1 STM-1 STM-4
CMIS-1.1, S-4.1, S-4.2, L-4.1, L-4.2, E1, F1, E2, 64 12 x 64 2x2 , QD2: LAN:
ITU-T G.703 ITU-T G.957 ITU-T G.957 , ITU-T G.703 , ITU-T G.703 1 +1 14 + 2 1 +1 ServiceOn Access RS-485 10BaseT RS-232
QD2-Master
: DCCr/m: 19 75 ETSI 300132 160 ... 180 – 5°C to + 45°C, c ETSI 300019, Class 3.2 4 , , ETSI 19” x x : 2200 x 600 x 300 ) EN 60950; EN 301 489-1; EN 301 489-4 (EN 300 385); EN 300 132; EN 301 126-1; EN 301 461; EN 301 127 * ** ***
STM-1
STM-4 1,5
;
Slave