3Com 5000 ATM Tabl e 6- 2 Base Module LED Corrective Actions

Troubleshooting Using LEDs 6-3
Determining Corrective Action
Table 6-2 identifies appropriate corrective actions for each base module
LED indication.
Tabl e 6- 2 Base Module LED Corrective Actions
LED LED State Possible Cause Corrective Action
MOD STAT Green Normal operating indi cation. None required.
Off No power to hub. Check the controller module power
LEDs.
The hub does not have enough
available power for a new
module installation.
Add another power supply to the hub.
Use the SHOW POWER BUDGET
command to ascertain available power in
the hub.
The ATM Backbone
SwitchModule is faulty.
Insert a different ATM Backbone
SwitchModule.
Yellow Module failed power-on
diagnostics.
Reset ATM Backbone SwitchModule
(page6-12).
Re-seat ATM Backbone SwitchModule in
CoreBuilder5000 hub.
Refer to “Recovering from Problems” on
page6-5.
PACKETCHANNEL Green SwitchModule is correctly
inserted in hub and recognizes
PacketChannel backplane.
None required.
Off ATM Backbone SwitchModule
is not connected to backplane.
Re-seat the ATM Backbone
SwitchModule in the slot.
Slot does not support
PacketChannel operation. To
verify, enter the command
SHOW MODULE. The General
Information field states “ATM
Slot” if the slot is reserved for
ATM.
Install the ATM Backbone SwitchModule
in slots 1 through 8 or 13 through 17.
PacketChannel backplane not
installed or incorrectly in stalled
in the hub.
Re-install the PacketChannel backplane
or purchase a PacketChannel backplane.
Contact your supplier.
Yellow ATM Backbone SwitchModule
transmitting heavy traffic levels
to the PacketChannel
backplane.
None required.
Yellow
Blinking
ATM Backbone SwitchModule
transmitting normal tr affic
levels to the PacketChannel
backplane.
None required.