Head Office:

PMC-Sierra, Inc.

8555 Baxter Place

Burnaby, B.C. V5A 4V7

Canada

Tel: 604.415.6000

Fax: 604.415.6200

Combined E1/T1/J1 Transceiver/Framer

To order documentation,

send email to:

document@pmc-sierra.com

or contact the head office,

Attn: Document Coordinator

PMC-1961230 (R3)

© Copyright PMC-Sierra, Inc. 2001.

All rights reserved. July 2001.

trademarks of AT&T.

COMET, PALADIN-15, and PMC-Sierra are

trademarks of PMC-Sierra, Inc.

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

PM4351 COMET

All product documentation is available

on our web site at:

http://www.pmc-sierra.com

For corporate information,

send email to:

info@pmc-sierra.com

APPLICATIONS

• Wireless Base Transceiver Station and

Digital LoopCarriers (DLCs).

• BITS Timing Systems.

• Integrated Access Device (IAD).

• Channel and Data Service Units

(CSU/DSU).

• Enterprise Routers.

• V5.1/V5.2 Interfaces.

TYPICAL APPLICATIONS

PM4351

COMET

ATM UNI

& AAL2

Processing

Modem

PM7815

PALADIN-15

RF

E1 or T1

WIRELESS BASE TRANSCEIVER STATION (BTS)

INTEGRATED ACCESS DEVICE (IAD)

10 Base T

PHY

PM4351

COMET

Ethernet

(Data)

PM4351

COMET

E1 or T1

(Voice)

ATM or

Packet

T1

Cross-

Connect and

Interworking

BITS TIMING APPLICATION

Timing Selector

BITS Timing

Signal A

T1

BITS Timing

Signal B

T1

PLL

Recovered

Timing

PM4351

COMET

PM4351

COMET