Head Office:

PMC-Sierra, Inc.

#105 - 8555 Baxter Place

Burnaby, B.C. V5A 4V7

Canada

Tel: 604.415.6000

Fax: 604.415.6200

PM5312 STTX

SONET/SDH Transport Overhead Terminating Transceiver

To order documentation,

send email to:

document@pmc-sierra.com

or contact the head office,

Attn: Document Coordinator

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

PMC-931128 (R6)

 1998 PMC-Sierra, Inc.

September, 1998

S/UNI-622 is a trademark

of PMC-Sierra, Inc.

TYPICAL APPLICATIONS

622 Mbit/s STS-12/STM-4 ASYNCHRONOUS TRANSFER MODE MULTIPLEXER

622 Mbit/s STS-12/STM-4 ADD-DROP MULTIPLEXER AGGREGATE INTERFACE

OOF

TOUT[7:0]

RIN[7:0]

TCLK

RICLK

RIFP

PM5312

STTX

SONET/SDH Transport

Overhead Terminating

Transceiver

PM5355

ATM

Switch

Core

Optical

Facility

E/O

Clock

Synthesis

Clock

Recovery

Parallel to/

from Serial

Conversion

622 Mbit/s Front End *

* Contact PMC-Sierra Applications regarding 622

Mbit/s front-end alternatives.

O/E

STS-3c (STM-1)

ATM

Termination**

STS-3c (STM-1) To STS-12 (STM-4) Mux

PM5355

PM5355

PM5355

** S/UNI-622 operating in STS-3c mode.

OOF

TOUT[7:0]

RIN[7:0]

TCLK

RICLK

RIFP

PM5344

SPTX

PM5344

SPTX

PM5344

SPTX

Add-Drop

Mux

Backplane

Optical

Facility

E/O

Clock

Synthesis

Clock

Recovery

Parallel to/

from Serial

Conversion

622 Mbit/s Front End *

* Contact PMC-Sierra Applications regarding 622

Mbit/s front-end alternatives.

O/E

STS-3c (STM-1)

Path

Termination

STS-3c (STM-1) To STS-12 (STM-4) Mux

PM5312

STTX

SONET/SDH Transport

Overhead Terminating

Transceiver

PM5344

SPTX