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Broadcom's New EPON OLT System-On-Chip Drastically Reduces System Cost and Power by Up to 50%

2nd November 2011

Broadcom

ES Admin

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Broadcom Corporation has announced the BCM55524 Quad Port Ethernet Passive Optical Network (EPON) Optical Line Terminal (OLT). With unparalleled integration, the BCM55524 SoC combines the functionality of up to seven application-specific standard parts (ASSPs) and eliminates seven on-board memory devices, dramatically reducing system costs by up to 50 percent. Optimized to meet the bandwidth, scalability, and performance demands of next-generation broadband access networks serving both business and residential subscribers, the BCM55524 delivers twice the density and half the power per port of its predecessor, the TK3723, the world's most widely adopted EPON OLT SoC.

As the popularity of social networking, video on demand (VoD), and high bandwidth business services continue to climb, subscriber demand for higher-speed access networks is growing. Competitive pressures are upping the broadband ante -- driving Telco and cable providers to develop solutions that leverage existing networks and subscriber base to create profitable and differentiated services. Governments worldwide are making broadband a strategic initiative, investing in fiber technologies such as fiber to the home/business (FTTx). Analysts predict the number of worldwide FTTx subscribers to reach nearly one third of global wireline broadband subscriptions by 2016, driven largely by FTTx deployments in Asia(1).

Best in Class EPON and Carrier Ethernet Switching in a Total Solution

The BCM55524 quad OLT is designed to work in tandem with Broadcom's award-winning StrataXGS® aggregation switch series, combining feature-rich EPON and proven Carrier Ethernet performance in an end-to-end solution that meets the scalability, reliability, cost, and advanced feature set requirements of next generation FTTx deployments. Backward compatibility with the TK3723 OLT allows system designers to leverage stable OLT software that has undergone extensive carrier qualification and interoperability (IOP) testing, thus providing a risk-free migration path for OEMs to higher density 16-port line card designs, while significantly reducing time-to-market and development costs.

Market Drivers

Exponential growth in bandwidth demand driving FTTx deployments(1)

Reduction in copper infrastructure and transition to fiber(1)

With >25 percent CAGR by 2016, FTTx represents the fast growing broadband technology(1)

50 percent of all wireline broadband subscribers in Asia will be FTTx by 2016(1)

Worldwide IP traffic per capita will reach 15GB in 2015 (from 3GB in 2010) (2)

Key Features:

Fully backward software compatible with TK3723 and supports Broadcom's DOCSIS® Mediation Layer

Integration of up to seven ASSPs and reduction of up to seven memory devices with transition to DDR-3

Four IEEE 802.3ah-compliant EPON MACs with Broadcom Turbo-EPON™ support

Integration of four 1.25 Gbps/2.5 Gbps Burst-mode SerDes and four NNI-side SGMII SerDes

IPTV-ready supporting IP Multicast protocols with IPv4 and IPv6 support

Full line-rate Layer 2/3/4 filtering and packet processing with comprehensive rule-based classification

Integrated Traffic Management with 4,096 queues for SLA QoS policy enforcement

Compatible with IEEE 802.3ah EPON, China CTC 2.1, and CableLabs DPOE™ specifications

Availability

The BCM55524 is now sampling with production volume slated for the first half of 2012.