BURNABY, B.C. PMC-Sierra has launched its FREEDM-84/Temux chip set designed for packet-based T1/E1 over channelized DS-3 or Sonet/SDH interfaces for Internet-access switch, router and access-multiplexer applications.
The chip set is said to provide a complete T1/E1 over Sonet/SDH solution in half the space required by other devices. In a T1 channelized OC-3 application, the chip set replaces up to 10 devices and in an E1 channelized STM-1 application it replaces up to 13 chips.
The FREEDM-84/Temux chip set consists of two new members of the FREEDM family of high-density packet processors and the Temux, a T1/E1 framer and Sonet/SDH mapper device.
The PM7384 FREEDM-84P672 and PM7385 FREEDM-84A672 each support up to 672 simultaneous High-level Data Link Control (HDLC) channels across up to 84 T1 or E1 links.
The FREEDM-84P672 supports a 66-MHz, 32-bit PCI-2.1-compliant system interface and allows system designers to continue to deliver high-performance PCI-based solutions.
The FREEDM-84A672 sup-ports PMC-Sierra's Any-PHY streaming-packet system interface, which delivers aggregate data rates exceeding 622 Mbits/second.
Both new FREEDM devices support up to three times the number of links previously possible in a single device thanks to a proprietary scalable bandwidth interconnect (SBI) bus that uses an 8-bit parallel format to interconnect the Temux Layer 1 framer device with high-density Layer 2 solutions like the new FREEDM-84 devices.
The PM8315 Temux integrates 28 T1 framers, 21 E1 framers, a DS-3 framer/multiplexer and Sonet/SDH mappers into a single chip.
It supports transmission over both DS-3 and Sonet/ SDH links, and interfaces directly to the PM5342 Spectra-155 device for Sonet/SDH applications. The Temux supports the SBI bus interface to FREEDM-84 and also supports seamless interconnection to other members of the FREEDM family and to the PM73121 AAL1gatorII ATM AAL1 SAR.
The PM7384 FREEDM-84P672 is packaged in a 35 x 35-mm 352-pin SBGA and is priced at $480 in 1,000-unit quantities. The pin-compatible PM7385 FREEDM-84A672 is priced at $385. The PM8315 Temux is packaged in a 23 x 23-mm 324-pin PBGA and is priced at $299. All devices are rated for industrial temperature range operation (-40 degrees C to 85 degrees C).
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EETInfo No. 639