Quidway® NetEngine 20 Routers ATM 155 M Optical Interface Module
Copyright ©2007 Huawei Technologies Co., Ltd. All rights reserved.
http://www.huawei.com/products/datacomm/
1
Quidway® NetEngine 20 Routers ATM 155 M Optical Interface Module
Overview
The ATM 155 M optical interface module of an NE20 router is used to provide ATM interfaces for
the router. Functions of the interface are described as follows:
z
Support SDH and SONET frame formats.
z
Support scrambled data transmission.
z
Support line clock (used when it works as a DTE interface) and internal clock (used when it
works as a DCE interface).
z
Support cell loop, payload loop and echo.
z
Support hardware flow control and software resetting.
At present, NE20E routers provide three types of ATM 155 M optical interface modules, including
single-mode, multi-mode as well as single-mode and long-distance boards.
Specifications
Specifications of the ATM 155 M optical interface board are described as below.
Module
Interface type
Description
NE-FIC-STM1/ATM-MM/1310-2km-SC SC
A 1-port ATM/155 M multi-mode
optical interface module
(1310nm, 2km, SC)
NE-FIC-STM1/ATM-SM/1310-15km-SC SC
A 1-port ATM/155 M
single-mode optical interface
module (1310nm, 2km, SC)
NE-FIC-STM1/ATM-SM/1310-30km-SC SC
A 1-port ATM/155 M
single-mode and long-distance
optical interface module
(1310nm, 30km, SC)
