Burnaby, B.C. - PMC-Sierra has added two CMOS link layer devices to its POS-PHY Level 3 physical layer portfolio for data streams from OC-3 to OC-48.
The four-channel PM5358 S/UNI-4x622 link termination chip is for multiport OC-12 line interfaces. The 16-channel PM5382S/UNI-16x155 targets multiport OC-3. Each 2.5-volt CMOS device combines a serializer-deserializer, clock recovery and clock synthesis, Sonet framers, and packet and cell processors.
Either one can replace as many as nine discrete devices in super-routers, multiservice switches and other next-generation, high-speed communications systems. Both devices include a 4-bit, 622-MHz bidirectional automatic protection switching interface for line card protection.
"These devices enable customers to terminate uplinks from DSLAMs digital subscriber line access multiplexers, access concentrators, CPE routers, edge routers and multiservice switches for aggregation onto high-speed Internet backbones," said Steve Perna, vice president and general manager of PMC-Sierra's Optical Networking Division.
Designers can deploy a single POS-PHY Level 3 link layer device and support 16 x OC-3c, 4 x OC-12c, OC-48c, channelized OC-48, channelized 4 x OC-12, channelized 16 x OC-3 and 2 x GE termination. Line cards can be mixed and matched according to the service provider's network system requirements, he noted.
Samples of the PM5358 S/UNI-4x622 are slated for December 2000, with samples of the PM5382 S/UNI-16x155 to come in February. Prices in 1,000-piece quantities are $299 and $429, respectively.
Both devices come in 520-pin SBGAs and are rated for operation over the -40 degrees C to +85 degrees C industrial range. Online design aids include software drivers.
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EETInfo No. 612