ADC Telecommunications Inc. F0684-112 Manual Do Utilizador
Help Hot Line (U.S. only): 1-800-530-9960
9-9
D-620616-0-20 Rev F
CONFIDENTIAL
Troubleshooting
Table 9-4
Troubleshooting Expansion Hub Status LEDs During Normal
Operation
During
Normal
Operation
Normal
Operation
Expansion
Hub
Status
LEDs
Hub
Status
LEDs
State
Action
Impact
At Any Time
UL STATUS
Red
Check uplink fiber for optical loss.
Power cycle Expansion Hub one
time to check uplink laser.
time to check uplink laser.
No communications between the Main
Hub and the Expansion Hub.
Hub and the Expansion Hub.
Uplink laser failure.
DL STATUS
Red
Check the downlink fiber for opti-
cal loss
cal loss
No communications with the Main Hub.
E-H
STATUS
STATUS
Red
If either the
UL STATUS
or the
DL
STATUS
are also red, see above.
Cycle power on the Expansion
Hub. If fault remains, replace the
Expansion Hub.
Hub. If fault remains, replace the
Expansion Hub.
Internal Expansion Hub fault (including
either of the above
either of the above
UL STATUS
or
DL
STATUS
states).