POINT-TO-MULTIPOINT DEEP FIBER ACCESS GPON with Ericsson EDA 1500 Fiber Solutions
IPTV is rapidly gaining strategic importance for telecommunications operators. They need to support multiple High Definition TV channels and networks that will gradually move from multicast TV to unicast video streams. All together, this means that fiber needs to be deployed deeper in an access network to meet the increasing demand for bandwidth. It shouldn’t be surprising that a majority of carriers have selected Passive Optical Network (PON) pointto-multipoint systems that share one fiber connection between multiple users with no requirement for active equipment in the network. PON offers a cost-effective solution, especially with the advent of Gigabit PON (GPON), an Ethernet and ITU based standard that offers
improved data rate and enhanced functionality. GPON provides the migration path to an all-IP network and offers the bandwidth required to deliver the new advanced voice, video, and data services.
FTTH deployment optimized with GPON GPON systems offer a flexible and cost-effective way of delivering advanced high-speed services, especially in high-density residential areas. A single strand of fiber can be pushed deep into the fiber access network and split with a passive optical splitter close to the customers’ premises. The GPON system consists of an Optical Line Terminal (OLT) at the Central Office and a number of optical
network terminals or network units (ONTs/ONUs) at the customer premises. Both of these devices are active and require power. Instead of using powered electronics in the outside plant, passive splitters divide the bandwidth to serve multiple users so that there are no active components between the Central Office and the customer premises. This results in both CAPEX and OPEX savings, as passive components do not require power to operate. They are also generally less expensive to initially deploy and maintain in the outside plant. As multiple users share part of the distribution network, less subrack space is needed in the Central Office for active interfaces and optical distribution frames.
New IP-based services are driving GPON The demand for new, IP-based services such as highdefinition IPTV is driving the need for the high-capacity, all-IP access networks. GPON is currently the most widespread PON standard and supports both legacy traffic in its native format and the evolution to an all-packet/all-IP network of the future. Over the past few years, this has resulted in a significant increase in the adoption of GPON for deep fiber access and major deployments in Asia and North America. Ericsson’s Full Service Broadband architecture supports a GPON deep fiber access solution based on the Ericsson EDA 1500 Fiber Solution. Ericsson’s GPON solution is based on industry leading technology and is currently deployed by major telecom carriers worldwide. Naturally, moving to an all-IP network represents a substantial investment in new technology. Ericsson’s EDA 1500 GPON solution is a very scalable and costeffective alternative for a voice-to-packet migration. GPON can be deployed cost-effectively, virtually line by
line, ensuring that network build-out is always exactly in line with service demand.
Complete deep fiber access offering Ericsson offers a complete solution for the planning, deploying and operating of GPON based deep fiber access networks. It includes a passive fiber infrastructure, active electronics (optical line terminal, fiber access nodes, aggregation switches, optical network terminals and other customer premises equipment), indoor and outdoor site solutions, management systems as well as various consulting and customer project services, network design, integration and implementation, hosting, and managed services.
Fiber to the home network termination The following chapters describe the typical elements in a GPON deep fiber access solution from Ericsson. At the customer premises, the GPON network terminates in the Optical Network Terminal (ONT). The ONT supports different applications for data, video and voice services and the indoor units are optimized for either single-family homes or multi-dwelling units. The Ericsson EDA 1500 GPON solution includes a wide range of ONTs for the delivery of telephone services, IP-based data services, IPTV video services and Radio Frequency (RF) video services. The latest addition to the EDA 1500 ONT series is the T067G, which has a built-in switch and offers four Gigabit Ethernet ports, two POTS ports and one RF video port. For IPTV services, the T067G ONT supports both unicast video-on-demand and multicast using IGMP snooping to support TV channel zapping.
FTTH / FTTP Fiber-To-The-Home Fiber-To-The-Premises
ONT ONT
ONT
Metro Ethernet Network
Fiber Cables
FTTB / FTTC / FTTN Fiber-To-The-Building Fiber-To-The-Curb Fiber-To-The-Node
Optical Line Terminal (BLM 1500)
Aggregation Switch
Central Office ONU VDSL2 ONU (GPON-fed IP DSLAM)
Fiber to the building and curb with VDSL2 GPON is not only viable for FTTH deployment, but is also relevant in FTTB/FTTC applications. One way to integrate GPON into part of your existing copper plant is to use GPON to subtend IP DSLAMs with VDSL2 as the last drop. Ericsson has integrated GPON and VDSL2 in our EDA RSC24c, a GPON-fed Optical Network Unit (ONU) that supports up to 24 end users and fits in a small cabinet. By placing the ONU close to end users, up to 100 Mbps speeds via copper pairs can be achieved. Our market leading and award-wining VDSL2 solution is hardened and optimized for outdoor installation.
Distribution network with optical splitters One optical fiber carries both upstream and downstream traffic from each ONT/ONU to a passive optical splitter. The optical splitter is located close to the end users and is fed by one single fiber from the Central Office. For the feeder/distribution network between the customer premises and the Central Office, Ericsson offers traditional fiber cables as well as our air-blown fiber systems Ribbonet® and Micronet™.
Access network termination The Optical Line Terminal (OLT) is located in the Central Office and serves as an interface between the ONTs at the customer premises and the aggregation network. Our GPON deep fiber access solution is based on the Ericsson EDA 1500 product solution. Designed to provide superior user experience, the EDA 1500 solution provides a high-density OLT with 10 Gbps uplink interfaces and a high-capacity backplane that can switch bandwidths up to 320 Gbps for commercial and residential services. Towards the customer premises, each port supports a total bandwidth of 2.5 Gbps downstream and 1.2 Gbps upstream. The EDA 1500 solution supports a flexible configuration of aggregation with split ratios of 1:32 at 20 km (~75 Mbps per user) and 1:64 at shorter distances. It provides dynamic bandwidth allocation along with a suite of IP features including Quality of Service, traffic separation, IP multicast, and security and data integrity mechanisms such as 128 bits AES (Advanced Encryption Standard). The EDA 1500 OLT is subrack based and allows payment based on growth – just add new boards for extensions. It includes a fully redundant switch and control core with seamless failover that prevents down time. Our EDA 1500 OLT has a unique scalability and can support up to 3584 FTTH customers or FTTB/FTTC remote nodes in a single subrack.
EDA 1500 OLT in compact chassis
Metro Ethernet aggregation and transport For Ethernet aggregation and IP transport, Ericsson’s Full Service Broadband offering includes a comprehensive portfolio of Metro Ethernet aggregation switches, edge routers as well as optical and microwave solutions for the backhaul and aggregation transport network. These are scalable and high-capacity solutions that include the Ericsson EDA ECN430 switch for aggregation towards the Metro Ethernet, Redback SmartEdge multi-service edge routers and the Marconi OMS 2400 optical packet transport family.
Management system Ericsson’s EDA 1500 portfolio includes the EntriView EMS™, a dedicated element management system. To simplify management of a sub-network of EDA 1500 network elements, the EntriView EMS™ provides centralized control with full FCAPS (Fault, Configuration, Accounting, Performance, Security) functionality. The remote ONTs/ ONUs can be provisioned and managed from the BLM 1500™ using CLI and EntriView EMS™ interfaces.
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