Huawei CR52-2xPOS/STM16-SFP User manual

Quidway® NetEngine 40E Core Router OC-48c/STM-16c POS Optical Interface Boards
Copyright ©2007 Huawei Technologies Co., Ltd. All Rights Reserved.
http://www.huawei.com/products/datacomm/ 1
Quidway® NetEngine 40E Core Router
OC-48c/STM-16c POS Optical Interface Boards
Overview
The Quidway® NetEngine 40E Core Router (“NE40E” hereinafter) provides OC-48c/STM-16c POS
optical interface boards of different port densities to connect with the SDH transmission equipment
or other equipment. The boards may be plugged in any service slots of the NE40E and provide
2.5G transmission channels. Currently, they are widely applied in carriers’ MANs and backbone
networks.
CR52-2xPOS/STM16-SFP
CR52-4xPOS/STM16-SFP
The OC-48c/STM-16c POS optical interface boards implement POS frame encapsulation/
decapsulation of data flows and SDH/SONET mapping/demapping of POS frames, provide external
optical interfaces at a rate of 2.5 Gbps, and provide such functions as loopback, environment
monitoring and information query.

Quidway® NetEngine 40E Core Router OC-48c/STM-16c POS Optical Interface Boards
Copyright ©2007 Huawei Technologies Co., Ltd. All Rights Reserved.
http://www.huawei.com/products/datacomm/ 2
They support hot plugging. The user may add or remove them as needed while the equipment is
powered on without affecting the services of the other interface boards. In addition, hot pluggable
SFP optical modules are adopted for plug and play. The rate can reach 2.5 Gbps. Optical modules
supporting different transmission distances may be selected depending on the networking
requirements.
Specifications
The NE40E provides three types of OC-48c/STM-16c POS optical interface boards, whose
specifications are listed in the following table:
Module name Interface type Description
CR52-4xPOS/STM16-SFP LC
4-port 2.5G POS SFP optical interface board,
which may have different SFP optical modules
depending on the transmission distance
CR52-2xPOS/STM16-SFP LC
2-port 2.5G POS SFP optical interface board,
which may have different SFP optical modules
depending on the transmission distance
CR52-POS/STM16-SFP LC
1-port 2.5G POS SFP optical interface board,
which may have different SFP optical modules
depending on the transmission distance
The NE40E provides the following four types of 2.5G POS SFP optical modules:
Interface rate 2.5Gbps
Transmission distance (km) 2 15 40 80
Center wavelength (nm) 1310 1310 1310 1550
Min. -10.0 -5.0 -2.0 -2.0
Transmitting optical
power (dBm) Max. -3.0 0.0 3.0 3.0
Receiving sensitivity (dBm) -21.0 -21.0 -30.0 -30.0
Overload optical power (dBm) -3.0 0.0 -9.0 -9.0
Fiber type Single mode Single mode Single mode Single mode