Problem Solving Using Leds - Cabletron Systems DIGITAL VNswitch 900CG Installation And Configuration Manual

Problem Solving Using LEDs

When diagnosing a problem with the module, note that the problem is often indicated
by the combined states of the module LEDs. Table A-1 lists the typical combined
states of the LEDs for various error conditions that can occur during initial installation
of the device, along with probable causes and corrective actions to take.
If any of the following problems persist after taking corrective action, either
replace the module or contact your DIGITAL service representative.
Table A-2: Problem Solving Using the LEDs
Symptom
Power LED
is off.
Module OK
LED is off.
Module OK
LED is
flashing, but
module
continues to
operate
normally.
NOTE
Probable Cause
The module is not
receiving +5 Vdc.
Self-test failed.
A nonfatal error
occurred.
Problem Solving Using LEDs
Corrective Action
Check the power status on the Chassis
Manager status display.
If the Chassis Manager status display
indicates that power is available for
this module, press the release lever and
reseat or remove the module.
Inspect the module's 48- or 160-pin
connector for bent or broken pins. If
any are bent or broken, replace the
module.
If the LED does not light within 3
minutes, lift and reseat the release
lever momentarily to repeat the self-
test.
Contact your DIGITAL service
representative.
(continued on next page)
Problem Solving A-5