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Product category: Communications ICs (Wired)
News Release from: PMC-Sierra | Subject: Chess-III
Edited by the Electronicstalk Editorial Team on 04 June 2002

Chipset aids cost-effective Sonet/SDH
upgrades

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PMC-Sierra reckons its Chess-III chipset establishes a new benchmark for technology and innovation in aggregating, grooming and transporting 2.5 and 10Gbit/s metro services.

PMC-Sierra reckons its Chess-III chipset establishes a new benchmark for technology and innovation in aggregating, grooming and transporting 2.5 and 10Gbit/s metro services Chess-III simplifies design and network management and substantially reduces carrier systems costs

The chipset enables OEMs to leverage deployed line cards into new and more advanced systems, thereby preserving existing service provider investment and infrastructure.

The Chess-III chipset includes the PM5376 TSE-Nx160 STS-1/AU-3 crossconnect device, PM5326 Arrow-2x192, and PM5324 Arrow-1x192 Sonet/SDH framers.

Chess-III is ideal for multiservice provisioning platforms, subwavelength crossconnects and add-drop multiplexers for metropolitan transport markets.

The Chess-III chipset can be used to seamlessly upgrade currently deployed Chess-I and Chess-II systems, or can be deployed in new, scalable metro architectures.

The TSE-Nx160 device grooms subwavelength traffic and features the industry's first nonblocking, scalable STS-1/AU-3 crossconnect.

This unique chip architecture enables metropolitan transport equipment to scale from 160 to 640Gbit.

The Arrow-2x192 and Arrow-1x192 are the industry's highest density OC-48/STM-16 and OC-192/STM-64 transport optimised devices integrating the latest Sonet/SDH transport features for both current and next generation metropolitan networks.

All devices in the Chess-III family interoperate through the use of PMC-Sierra's industry leading, standard 2.5Gbit/s backplane I/O technology to simplify system design and increase time to market for service provider OEMs.

"PMC-Sierra worked together with the leading worldwide service provider equipment vendors to build a state-of-the-art architecture.

Our Chess-III chipset architecture incorporates the newest transport framer features and solves the issues of STS-1 and AU-3 crossconnect scalability and nonblocking which are major stumbling blocks in today's metro equipment networks", said Steve Perna, vice president and general manager of PMC-Sierra's optical networking division.

The Chess-III chipset reduces carrier operating expenses by enabling the deployment of a single hardware platform that can be re-used in multiple areas of the network".

"Lucent's already strong relationship with PMC-Sierra has been strengthened with the introduction of the Chess-III chipset", said Jay Fahey, general manager of metro access systems (DMX) for Lucent Technologies.

"With the introduction of Chess-III and Arrow transport optimised framers, PMC-Sierra has gone beyond the standard Sonet/SDH feature set to simplify networking equipment design and management.

We expect to leverage this advanced technology in our Metropolis DMX line of next-generation Ethernet over Sonet access multiplexers to seamlessly integrate new features and increased capacities into the installed base of metro transport equipment".

Today's crossconnect fabrics may block services that require multicast, such as video distribution, from being provisioned through metro transport equipment.

Unlike current complex and expensive alternatives, PMC-Sierra's TSE-Nx160 STS-1/AU-3 cross-connect device is the first scalable device to solve the blocking problem.

The TSE-Nx160 provides single-stage scalability from 160 to 640Gigs with only four devices, compared with current alternatives that require up to 24 devices in multiple stages.

The TSE-Nx160 provides 2.5Gbit/s and 622Mbit/s I/O to support both new and legacy line cards.

Arrow-2x192 and Arrow-1x192 deliver advanced Sonet/SDH transport features The Arrow-2x192 and Arrow-1x192 metro transport optimised devices are highly integrated channelised 20 and 10Gbit framers, respectively.

Both devices implement key Sonet/SDH transport functions, such as section, line and path performance monitoring, transparency of transport overhead, and control plane messaging.

As well, these devices support channelised, concatenated or arbitrarily concatenated traffic, with automatic detection of any changes in traffic configurations.

The Arrow-1x192 is targeted at today's Sonet/SDH networks and supports four ports of OC-48/STM-16 or one port of OC-192/STM-64.

The Arrow-2x192 framer supports eight ports of OC-48/STM-16 or two ports of OC-192/STM-64 and provides flexible solutions for upgrading carrier line cards to higher capacities with reduced costs.

Both devices integrate a working and protect backplane interface and a dedicated APS (automatic protection switching) port to address the critical, high reliability requirements of service provider metro networks.

The Chess-III chipset, in conjunction with the Arrow-2xGE, enables Sonet/SDH transport equipment to support Ethernet data services without the need to add complex packet processors or an incompatible Ethernet switch fabric.

A Sonet/SDH oriented system, such as a multiservice provisioning platform, can support Gigabit Ethernet services with the addition of a simple line card.

The benefit is that Ethernet packets are mapped into Sonet/SDH frames within an existing infrastructure.

This approach to Ethernet transport enables users to add data services to their system without resorting to a fork-lift-upgrade of their hardware and without a major change to their network management system.

(This was Electronicstalk's Top Story on 3 June 2002).

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