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PDH optical access devices suit SONET/SDH ADMs

Posted: 13 Sep 2004 ?? ?Print Version ?Bookmark and Share

Keywords:pmc-sierra? pm5337 adm 622? pm5338 adm 622? pdh optical access device? sonet/sdh?

PMC-Sierra Inc. introduced the PM5337 ADM 622 and PM5338 ADM 622 PDH optical access devices for use in remotely deployed SONET/SDH Add/Drop Multiplexers (ADMs) and Terminal Multiplexers.

The company said the highly integrated ADM 622 products enable system designers to build robust, small footprint carrier-class equipment which extends legacy and next-generation services to small and mid-sized enterprises.

"By integrating all the features necessary to build a complete ADM or Terminal Multiplexer in a single device, PMC-Sierra continues to drive down the cost of developing and deploying carrier-class equipment," stated Greg Aasen, VP and GM for Service Provider Division at PMC-Sierra. "The ADM 622 product family facilitates the deployment of traditional PDH and new services like Ethernet while maintaining the standards of availability and reliability required by carriers."

Claimed to be the first single-chip ADMs to be cost-optimized for OC-3/STM-1 and OC-12/STM-4 applications, the ADM 622 devices have an advanced feature set and high integration that are suitable for compact optical networking equipment.

In addition, the industry standard Scalable Bandwidth Interconnect Transport (SBI TR) bus connects directly to the PM4329 HDLIU 32 device and PDH client interfaces. Both the ADM 622 and ADM 622 PDH devices integrate SONET/SDH framers and pointer processors, PDH mappers, expansion interfaces, and a cross-connect. The ADM 622 device also integrates Ethernet-over-SONET/SDH interfaces with Layer 2 processing.

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