Transmux / PDH mapping platform reduces cost of voice, data services
April 25, 2005 Santa Clara, CA -- PMC-Sierra has introduced its PM8318 TEMAP 168, a high-density platform for trans-multiplexing (transmux) and PDH mapping functions. According to the company, the platform, requiring half the board space of competitive offerings, integrates essential performance monitoring and messaging functions to reduce overall equipment operating costs by eliminating the need for separate test access and monitoring hardware.
According to the company, trans-multiplexing is the interoperation of legacy and next-generation networks, accomplished by bridging T1/E1 traffic mapped into legacy DS-3s to T1/E1 traffic mapped into standard SONET/SDH containers. The company says its TEMAP 168 platform supports clear channel DS-3 and DS-3 transmux mapping on a single card, bringing substantial development cost savings to equipment vendors. Standard serial interfaces allow simple scaling of the platform's applications to OC-48/STM-16 or higher. The device integrates 168/126 T1/E1 bidirectional-PMON capable transceivers, six DS3/E3 bidirectional PMON-capable transceivers, and six M13 multiplexers.
The platform supports standard-compliant, in-service performance monitoring and test access functionality for T1/E1, including the Facility Data Link protocol. According to the company, by removing the need for an overlay test access infrastructure, and providing integrated test access functionality, the platform enables carriers to easily and efficiently manage Service Level Agreements and demarcation points remotely within a network, eliminating costly truck rolls.
To eliminate interface density constraints, the device employs the Scalable Bandwidth Interconnect Transport (SBI TR) bus, an extension of the industry-standard SBI bus. According to the company, with a full suite of LIU options supporting the SBI TR bus, including the PM4329 HDLIU, a 32-port T1/E1 device, the platform is capable of achieving up to twice the physical density with lower capital and operating costs than other, competitive platforms.
The PM8318 TEMAP 168 is now sampling, packaged in a 23 x 23-mm FCBGA and developed using 0.13-micron CMOS technology. The device integrates standard serial backplane interfaces for interoperation with the manufacturer's CHESS Family of metro transport devices.