Wayne, N.J. Startup Parama Networks Inc. is integrating the capabilities of a Sonet/SDH add-drop multiplexer (ADM) into a single chip with the release this week of devices for OC-192 and OC-768 architectures, each packing framer, cross-connect and other ADM functions.
Other companies have talked about developing ADMs-on-chip, but most offerings to date involve building blocks that lead to ADM cards. That's not the case with Parama's PNI8160 and PNI8040 devices, for OC-768 and OC-192 designs, respectively. Each combines a cross-connect, two high-speed ports, eight low-speed ports and framers on one die.
The OC-768 device delivers a cross-connect that can achieve 160-Gbit/second performance, two OC-768 ports and eight OC-192 ports. The OC-192 device sports a 40-Gbit/s cross-connect, two OC-192 ports and eight OC-48 ports. The eight slower ports on the devices can each be configured through software to support rates down to OC-3, said Scott Wilkinson, marketing director at Parama (Santa Clara, Calif.).
The framers have full read/write access to all of the overhead bytes on streams across the chip. That lets the chip operate in systems where designers have made proprietary tweaks to the overhead bytes in a Sonet/SDH stream, Wilkinson said. Designers can also build transparent transport using the overhead bytes.
To implement the chips in a system architecture, designers must hook up a generic framing procedure and an overhead processor-both handled using a Xilinx FPGA supplied by Parama. Designers must also link in an IBM PowerPC processor.
The PNI8160 and PNI8040 are built by United Microelectronics Corp. in a 0.13-micron process. Housed in a 1,521-pin flip-chip BGA, the OC-192 dissipates 8 watts maximum; the OC-768 device is expected to draw a maximum of 18 W.
The PNI8040 will enter production this month and the PNI8160 in March. In 1,000-unit quantities, the 8040 is priced at $1,250 apiece and the 8160 at $2,500.