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PMC-Sierra Introduces Highest Performance Multilink T1/E1 Packet Processing for a Channelized OC-12 in a Single Chip.

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BURNABY, British Columbia--(BUSINESS WIRE)--March 5, 2001

New FREEDM(TM) Products Provide 4 Times Density Improvement for

IP Access

PMC-Sierra (Nasdaq:PMCS) today announced two new members of its FRame Engine and Datalink Manager (FREEDM(TM)) packet processor family: the PM7388 FREEDM-336A1024 and the PM7389 FREEDM-84A1024.

The FREEDM-336 is the industry's first packet processor to support up to 336 T1 lines and achieve a sustained wire speed throughput for short IP packets. The FREEDM-336 also supports up to 252 E1 links and is ideal for channelized nxOC-12 and OC-48 port card designs in edge routers, optical access equipment and multiservice switches (Figure 1). The FREEDM-84 supports up to 84 T1 or 63 E1 links over 1024 HDLC channels and is ideal for nxDS3 and nxOC-3 port card designs. By integrating a dedicated multilink packet processor engine, the new FREEDM devices provide greater than 4 times the density achievable with previous CPU and FPGA solutions.

Multilink Technology Bridges the Bandwidth Gap between T1/E1 and T3/E3

The explosive demand for high data rate applications is pushing the WAN bandwidth requirement for many business users beyond the capability of a single T1/E1 link. The next service level above T1's 1.544 Mbit/s is a large jump to the 45 Mbit/s T3 that has limited deployment in the access network and may not offer users with the bandwidth relief at the target price point. Multilink Point-to-Point Protocol (ML-PPP) and Multilink Frame Relay (ML-FR) are standard compliant solutions designed to bridge the bandwidth gap between T1/E1 and T3/E3 by supporting dynamic bandwidth allocation in multiple T1/E1 rates.

Early implementations of ML-PPP and ML-FR relied on large and complex FPGA, ASIC, or processor-based implementations. Network system architects can now leverage the standard compliant ML-PPP and ML-FR capabilities of the new FREEDM products to develop a single design that support rates ranging from DS0, T1/E1, multilink T1/E1 bundles to unchannelized DS3, at greater than 4 times the density than previously achievable (Figures 2 and 3).

"PMC-Sierra's commitment to lead the industry in highly channelized packet processor solutions is critical for us to deliver the necessary port density in our next generation ERX-1400 Edge Routing Switches," said Kurt Melden, chief technology officer at Unisphere Networks. "The density improvement provided by FREEDM-336 allows us to meet the large scale demands for edge-enabled services," concluded Melden.

The FREEDM-336 and FREEDM-84 expand PMC-Sierra's multiservice architecture. Together, with PMC-Sierra's SPECTRA(TM) (SONET), S/UNI(R)-IMA (ATM inverse multiplexor), TEMUX (AAL1 voice-over-ATM), AAL1gator(TM) (voice-over-IP/ATM processor) and MECA(TM) product families, a single design can support all of the major protocols at the edge of the network (Figure 4). This chip set satisfies the physical and power constraints found in the newest edge router and switch equipment. A complete channelized OC-48 or 4xOC-12 solution requires only a single SPECTRA-2488, 16 TEMUX-84s and 4 FREEDM-336s. Such designs can be rapidly brought to production by applying the software and hardware knowledge gained from the hundreds of previous generation designs based on the FREEDM family (Figure 5).

"Leveraging the ubiquitous copper access infrastructure is a major initiative of service providers today," said Glenn Bindley, general manager and vice president of PMC-Sierra's Access Product Division. "By incorporating Multilink technologies, the FREEDM-336 and FREEDM-84 provide unprecedented line card functionality and densities for next generation IP routers and optical switches," concluded Bindley.

Pricing, Availability and Customer Support

The FREEDM-336 and FREEDM-84 devices are packaged in a 40 x 40 mm2, 520 pin SBGA package. The FREEDM-336 is priced at $1668 in 1KU quantities through distribution. The FREEDM-84 is priced at $575 in 1KU quantities through distribution. Both chips are low-power 1.8V CMOS devices rated for industrial temperature range operation (-40 to +85 degrees Celsius) and are sampling in Q2, 2001. A comprehensive support package including datasheets, software drivers, user manual, hardware reference designs, device models and a technical overview is available on PMC-Sierra's web site at

About PMC-Sierra

PMC-Sierra is accelerating the broadband revolution. PMC-Sierra's extensive family of broadband communication semiconductors enables the equipment that makes up the backbone of the Internet. PMC-Sierra offers worldwide technical and sales support including a network of offices throughout North America, Europe and Asia. PMC-Sierra is publicly traded on the Nasdaq Stock Market under the symbol "PMCS". The company is included in the Nasdaq-100 Index (NDX) which contains the largest non-financial companies on the Nasdaq Stock Market. The Nasdaq-100 Index is the benchmark for the Nasdaq-100 Index Tracking Stock (Amex:QQQ).

PMC-Sierra develops Internet Protocol (IP), ATM, SONET/SDH, T1/E1, T3/E3, Voice-over-Packet, wireless infrastructure, MIPS(TM) microprocessor, and Gigabit Ethernet solutions for wide area network (WAN), and Internet networking equipment. The company's quality system is registered with the Quality Management Institute to the ISO 9001 standard. As co-founder of the SATURN(R) Development Group, PMC-Sierra works with over 30 other member companies to define and develop interoperable, standard-compliant solutions for high speed networking applications. For more information about PMC-Sierra, visit

Attachments Figure 1: OC-48 Port Card Figure 2

and 3: OC-12 Density Improvement - Currently Available Solution

OC-12 Density Improvement - PMC-Sierra Solution Figure 4: Complete Any Service, Any Port Solution Figure 5: FREEDM Product Family Photo Technical Glossary

Technical Glossary

AAL1gator(TM) ATM Adaptation Layer 1 SAR Processor

ATM Asynchronous Transfer Mode

CMOS Complimentary Metal Oxide Semiconductor

CPU Central Processing Unit

DS Digital Signal

E1, E2, E3 European (world) standards for 2.048 Mbit/s,

8.448 Mbit/s, and 34.368 Mbit/s

FPGA Field Programmable Gate Array

FREEDM(TM) FRame Engine and Datalink Manager

H-MVIP High-capacity Multi Vendor Integration Protocol

HDLC High Level Data Link Control

IP Internet Protocol

LIU Line Interface Unit

Mbit/s One million bits per second

MECA(TM) Multiprocessor Embedded Communications


MIPS(TM) Million Instructions Per Second

ML-FR Multilink Frame Relay

ML-PPP Multilink Point-to-Point Protocol

MUX Multiplexer

OC-12 Optical Carrier 12 (622 Mbit/s)

OC-48 Optical Carrier 48 (2488 Mbit/s)

SATURN(R) PMC-Sierra works with over 30 member

companies to define and develop

interoperable, standard-compliant

solutions for high speed networking


SBGA Super Ball Grid Array

SBI Scaleable Bandwidth Interconnect

SDH Synchronous Digital Hierarchy. Worldwide

standard for synchronous transmission systems

(typically fiber optic). Similar to SONET

SERDES 10-bit Serializer/Deserializer physical-medium

attachment sub-layer for Gigabit Ethernet

SPECTRA(TM) SONET/SDH Payload Extractor/Aligner

SPECTRA(TM)-2488 SONET/SDH Payload Extractor/Aligner for

2488 Mbit/s

SPECTRA(TM)-622 SONET/SDH Payload Extractor/Aligner for

622 Mbit/s

SONET Synchronous Optical Network. North American

standard for synchronous transmissions systems

(typically fiber optic). See also SDH

S/UNI(R)-IMA SATURN User Network Interface Inverse

Multiplexer for ATM (IMA)

T1 North American standard for 1.544 Mbit/s


T3 North American standard for a TDM

digital channel carrier that operates

at 44.736 Mbit/s. It can multiplex 28

DS-1 signals and is synonymous with


TEMUX High Density T1/E1 Framer with Integrated VT/TU

Mapper and M13 Multiplexer

UTOPIA Universal Test and Operation Physical Interface

for ATM. Physical layer specification for

local connectivity between ATM devices

VoX Voice Operated eXchange

VT Mapper Virtual Tributary Mapper

WAN Wide Area Network

(c)Copyright PMC-Sierra, Inc. 2001. All rights reserved. S/UNI(R)and SATURN(R)are registered trademarks of PMC-Sierra, Inc. AAL1gator(TM), FREEDM(TM), MECA(TM), SPECTRA(TM)and PMC-Sierra(TM)are trademarks of PMC-Sierra, Inc. MIPS(TM) is a trademark of MIPS Technologies, Inc.

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Publication:Business Wire
Geographic Code:1CANA
Date:Mar 5, 2001
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