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PMC-Sierra network IC terminates up to 12 DS3/E3 channels

Posted: 19 Mar 2002 ?? ?Print Version ?Bookmark and Share

Keywords:s/uni 12xjet? pm5383? ds3/e3 termination? j2 termination? pmc sierra?

The PM5383 S/UNI-12xJET is claimed to replace up to four discrete devices in performing the aggregation, transport and termination of up to 12-channels of DS3/E3 and J2 protocols, enabling DS3 services to be deployed in both new and existing platforms.

DS3/E3 is claimed to be one of the most widely used physical interfaces used to connect MAN equipment, including ADMs, MSPPs and edge aggregation routers and switches. "DS3/E3 continues to be a highly in-demand physical interface technology offering a migration path from existing T1/E1 services," said Jeremey Donovan, vice president and chief analyst, Gartner Dataquest.

Densely channelized OC-12 line cards are also supported by the S/UNI-12xJET. These cards are used at the edge of networks as carriers backhaul all their traffic to an access POP where they will terminate the customer traffic in an edge router or multi-service switch before firing it out onto the Internet SONET/SDH backbones.

The S/UNI-12xJET can also be combined with the company's TEMUX and FREEDM product lines to perform deeper channelization, and enable OEMs to build one line card that can terminate OC-12c POS/ATM down to any legal mix of OC-3c POS/ATM, DS3/E3 bit-HDLC/ATM, and DS1/DS0 HDLC.

The chip can integrates 12 DS3/E3 mappers/framers, with corresponding desynchronizers and a STS-12 SONET/SDH framer, to support DS3/E3 mapping into SONET/SDH on a channel-by-channel basis. This allows ADMs and MSPPs to deploy a single line card to supports simultaneous mapping and transport of both DS3 and E3.

Fabricated using a 0.18?n CMOS process, the S/UNI-12xJET consumes <0.2W/port. It is housed in 35-by-35mm, 580-pin TSBGA package.

The PM5383 S/UNI-12xJET is priced at $474 each in quantities of 1,000 units.

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