Nortel Networks HotWire 8600 - Manual (Page 49)

Troubleshooting
4-2 8600-A2-GN20-20 October 1997
Fan Alarm LED is ON
PROBLEM: One of the chassis in the stack is reporting a fan failure
(i.e., the FAN ALM LED of that chassis is on).
A built-in feature shuts off power to the circuit cards if a chassis
overheats because of fan failure. If the temperature in the
chassis reaches
70
°
C, power to the cards in the chassis is
turned off automatically. Power is turned on when the
temperature drops below 60
°
C.
ACTION: Go to the stack to see which chassis is reporting the fan alarm.
To clear the fan alarm, contact your service technician to
replace the HotWire 8600 chassis.
SYSTEM ALM LED is ON (on a DSL Card)
PROBLEM: SYSTEM ALM LED is ON and DSL card is inoperative in Slot n
ACTION: 1. Using the HotWire DSLAM software, choose Card Selection
from the Main Menu to display the status of each DSL card.
2. If a major alarm is indicated, go to the MCC card and do a
card reset.
– Use HotWire DSLAM software to reset the DSL card .
– Go to Configuration/ DSL/Cards/Reset_Slot.
– Refer to the HotWire DSLAM for 8540 and 8546 DSL
Cards User’s Guide for more information .
3. Remove and reinstall the card.
4. If unable to clear by resetting the card, you may need to
replace the card.
DSL Card is Not Working Properly
PROBLEM: DSL card does not appear to be working properly.
ACTION: 1. Make sure the path to the LAN/WAN hub or switch is OK.
2. Check cables to the hub and make sure connection is
made properly.
3. Try removing the DSL card from the slot and re-installing
the card into another slot.
4. Replace the DSL card.