Huawei CR52-10GE User manual

Quidway® NetEngine 80E Core Router GE Boards
Copyright ©2007 Huawei Technologies Co., Ltd. All rights reserved.
http://www.huawei.com/products/datacomm/ 1
Quidway® NetEngine 80E Core Router GE Boards
Overview
The GE boards of the Quidway®NetEngine 80E core router (“NE80E” hereinafter) fall into two
types: GE optical interface boards and 10/100/1000M Ethernet electrical interface boards.
CR52-10xGE-SFP
CR52-24xGE-TX
The GE optical interface boards implement the Gigabit Ethernet MAC layer processing and
Physical Medium Dependent (PMD) functions in compliance with the IEEE specifications, and
provide such functions as loopback, environment monitoring and information query.
The 10/100/1000M electrical interface boards implement the Ethernet MAC layer processing and
PMD functions in compliance with the IEEE specifications, and provide such functions as loopback,
environment monitoring and information query.
The NE80E GE boards are mainly applied in Ethernet networking and their maximum rate is 1000
Mbps. The electrical interface boards support 10/100/1000 Mbps adaptation. If high-density 100M
or 1000M interfaces are needed and the transmission distance is no more than 100m in the
networking, the 10/100/1000M Ethernet electrical interface boards must be selected. If the

Quidway® NetEngine 80E Core Router GE Boards
Copyright ©2007 Huawei Technologies Co., Ltd. All rights reserved.
http://www.huawei.com/products/datacomm/ 2
transmission distance is greater than 100m, then the GE optical interface boards must be selected
and various SFP optical modules can be selected depending on the transmission distance.
Specifications
Currently, the NE80E provides two types of GE optical interface boards: CR52-10xGE-SFP and
CR52-5xGE-SFP. And it provides one type of 10/100/1000M Ethernet electrical interface board:
CR52-24xGE-TX.
Module name Interface type Description
CR52-10xGE-SFP LC
10-port GE optical interface line board, which may
have different SFP optical modules depending on
the transmission distance
CR52-5xGE-SFP LC
5-port GE optical interface line board, which may
have different SFP optical modules depending on
the transmission distance
CR52-24xGE-TX RJ45
24-port 10/100/1000M Ethernet electrical interface
line board supporting 10/100/1000 Mbps
adaptation and a maximum transmission distance
of 100m
The NE80E provides the following five types of 1000M SFP optical modules:
Interface rate 1000Mbps
Transmission distance (km) 0.5 10 40 80 100
Center wavelength (nm) 850 1310 1310 1550 1550
Min. -9.5 -9.5 -4.5 -2.0 0.0
Transmitting optical
power (dBm) Max. -2.5 -3.0 3.0 5.0 5.0
Receiving sensitivity (dBm) -17.0 -20.0 -22.5 -23.0 -30.0
Overload optical power (dBm) 0.0 -3.0 -3.0 -3.0 -9.0
Fiber type (mode) Multi Single Single Single Single