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Tel: 805.388.3700

Fax: 805.388.7565

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VSC9271

©2002 Vitesse Semiconductor Corporation

SPECIFICA TIONS:

+1.8V / +2.5 V Power Supply

3.5W Power Dissipation

10.3Gb/s maximum data rate (client side)

The VSC9271 is a multi-rate bidirectional Forward Error

Correction Device (FEC) with Digital Wrapper and performance

monitoring. The VSC9271 employs a bidirectional architecture

that can be used in both transceiver (adaptation) and regenerator

modes. In both cases performance monitoring at the client signal

level may be performed for STS-192/STM-64, STS-48/STM-16,

STS-12/STM-4, STS-3/STM-1, Gigabit Ethernet (GbE), and Fibre Channel (FC) signals.

The flexible design of the VSC9271 enables the device to be used in a variety of

applications with and without FEC.The VSC9271 conforms to the ITU-T G.975 standard

for transparent FEC. The FEC is supported by the Optical Channel (OCh) which has its

own set of performance monitoring and maintenance features defined by the ITU-T

G.709 standard. These features are independent of the client signal carried, simplifying

the operation of an optical network supporting various client signals. The VSC9271

offers bidirectional adaptation and regeneration capabilities for OCh signals.

An integrated multi-rate bidirectional performance monitor (PM) supports a variety of

client signals. For SONET/SDH, the device monitors and modifies the transport (section

and line) overhead of STS-192/STM-64, STS-48/STM-16, STS-12/STM-4, and STS

3/STM-1 client signals, which allows for support of Operations, Administration,

Management, and Provisioning (OAM&P) functions. In addition to SONET/SDH, the

VSC9271 supports the monitoring of GbE and FC signals, as well as a bypass mode to

support any other data format.

VSC9271 BLOCK DIAGRAM:

GENERAL DESCRIPTION:

10GB/s Multi-Rate Bi-directional FEC Device with Digital Wrapper and Performance Monitor

Receive OCh Overhead

Access Port

Receive Overhead

Access Port

Transmit OCh Overhead

Access Port

Generic

CPU Interface

Transmit Overhead

Access Port

FEC Decoder

(with DW)

West

PM

East

PM

FEC Encoder

(with DW)