Huawei CR-C2CF User manual

Quidway® NetEngine 80 Core Router OC-3/STM-1 CPOS Optical Interface Boards

Copyright ©2007 Huawei Technologies Co., Ltd. All Rights Reserved.

http://www.huawei.com/products/datacomm/ 1

Quidway® NetEngine 80 Core Router

OC-3/STM-1 CPOS Optical Interface Boards

Overview

The OC-3/STM-1 CPOS optical interface board of the Quidway®NetEngine 80 core router

(abbreviated to NE80) consists of the PIC OC-3/STM-1 CPOS optical interface and the Line

Processing Unit (LPU).

The LPU implements processing and encapsulation of link layer protocols, data flow classification

and packet filtering, data forwarding and control packet processing. The OC-3/STM-1 CPOS optical

interface mainly implements POS frame encapsulation/decapsulation of data flows and

SDH/SONET mapping/demapping of POS frames, provides 155Mbps channelized to E1/T1 optical

interfaces, and enables such functions as loopback and environment monitoring.

CR-C4CF

The OC-3/STM-1 CPOS optical interface board can be channelized to E1/T1, and can also support

multi-E1/T1 bundling. A single CPOS interface can channelize 63 E1 lines or 84 T1 lines. It is

usually used to access the SDH transmission network and implement SDH TM equipment

functions.

The OC-3/STM-1 CPOS optical interface board uses hot-pluggable SFP optical modules. You can

choose optical modules with different transmission distances according to networking

requirements.

Quidway® NetEngine 80 Core Router OC-3/STM-1 CPOS Optical Interface Boards

Copyright ©2007 Huawei Technologies Co., Ltd. All Rights Reserved.

http://www.huawei.com/products/datacomm/ 2

Specifications

The NE80 supports two types of OC-3/STM-1 CPOS optical interface boards: CR-C2CF and

CR-C4CF.

Module name Interface type Description

CR-C2CF LC 2-port 155M channelized to E1/T1 POS optical interface

board: Different SFP optical modules can be chosen for

different transmission distances.

CR-C4CF LC

4-port 155M channelized to E1/T1 POS optical interface

board: Different SFP optical modules can be chosen for

different transmission distances.

The NE80 supports the following four types of 155M SFP optical modules:

Interface rate 155 Mbps

Maximum transmission distance 2 km 15 km 40 km 80 km

Center wavelength 1310 nm 1310 nm 1310 nm 1550 nm

Min. –19 dBm –15 dBm –5 dBm –5 dBm

Transmitting

optical power Max. –14 dBm –8 dBm 0 dBm 0 dBm

Receiving sensibility –30 dBm –28 dBm –34 dBm –34 dBm

Overload optical power –14 dBm –7 dBm –9 dBm –10 dBm

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1

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