8820-A2-GN20-80
November 2004
6-1
6
Troubleshooting
Troubleshooting Table
Symptom
Solutions
FAN Alarm is ON
CAUTION
: This is a serious alarm and requires immediate
attention.
1. Remove power.
2. Remove the fan tray from the chassis.
3. Inspect the fan tray, and replace if necessary.
4. Contact your service representative for assistance.
POWER A or POWER B
LEDs are off
Using a voltmeter, check for power at the terminal
connections.
If there is power, call your sales representative for
service to the 8820 BAC.
If there is no power at the terminal, call an appropriate
electrician.
SYSTEM ALM LED is ON
and line card is inoperative
in Slot
n
For an SCP-card-based chassis:
1. Using the Status - Alarms screen of the web interface,
determine what alarms have been reported against the
line card.
2. If a major alarm is indicated, check the Ethernet
connections on the SCP card and DSL port card. Make
sure they are plugged in.
3. Remove and reinstall the card.
For an MCP-based chassis:
1. Using the asynchronous terminal interface, choose Card
Selection from the Main Menu to display the status of
each line card.
2. If a major alarm is indicated, check the Ethernet
connections on the MCP card and DSL port card. Make
sure they are plugged in.
3. Use software to reset the line card (
A-A-E
).
4. Remove and reinstall the card.
Summary of Contents for 8820
Page 10: ...Contents iv November 2004 8820 A2 GN20 80...
Page 14: ...About This Guide viii November 2004 8820 A2 GN20 80...
Page 20: ...1 Introduction 1 6 November 2004 8820 A2 GN20 80...
Page 48: ...2 Installation 2 28 November 2004 8820 A2 GN20 80...
Page 54: ...3 Cabling Line Card Tip and Ring 3 6 November 2004 8820 A2 GN20 80...
Page 78: ...A Pinouts A 8 November 2004 8820 A2 GN20 80...
Page 82: ...B Technical Specifications B 4 November 2004 8820 A2 GN20 80...