Nortel 5399 安装指南

Model 5399 Remote Access Concentrator Module Hardware Installation Guide

Chapter 2    Installing the Model 5399 Remote Access Concentrator Module

2-12

•

Attn: The Attn LED should be off. The Attn LED turns
green if the Remote Access Concentrator is in Monitor
Mode. If the Attn LED is amber or flashing, one of the
following failures has occurred:

•

Hardware failure. Contact technical support.

•

Network or network interface failure. Error message
displays on the terminal. If a network or network
interface failure occurs, typing

 accesses the ROM

Monitor prompt. Check the network connection and
then see net on page 3-19.

•

Load: Turns green when the Remote Access
Concentrator is loading the operational image or
dumping a RAM image if there is a failure.

•

Verify that the hub front-panel LEDs are properly
illuminated.

If the LEDs do not light in the proper manner, or if the system operation
displays indicate problems, see Chapter 4 for more details.

Be sure to properly configure the interface before connecting
the cable. Some switch types will disable lines connected to an
improperly configured device. See the Model 5399 Remote
Access Concentrator Module Network Administrator’s Guide
for details.

A WAN Interface is used to connect the Remote Access Concentrator to
channelized T1, channelized E1, or ISDN PRI lines. Follow the
instructions in this section to connect the line to the WAN Interface port.

Observe handling precautions: digital telecommunications
cable(s).