A-2
A
PPENDIX
A: T
ROUBLE
C
LEARING
AND
T
ECHNICAL
S
PECIFICATIONS
RN/FL LED
Diagnostics
This table provides information on trouble clearing problems that may
occur at power-up.
At power-up, the LEDs will be solid red for a short time. This is a normal
condition.
Critical Failure
Debug Procedure
Follow this procedure if you suspect a critical failure at start-up.
1
Pull the HiPer NMC NAC forward to unplug it from the midplane.
2
Reseat the card.
Check to see if the RN/FL LED turns green. If reseating the NAC does not
solve the problem, contact 3Com Technical Support.
Symptom
Cause
Trouble Clearing
RN/FL is solid green
The condition is
normal.
No action required.
RN/FL is solid red
There is a critical
failure.
Reinstall the 486 NMC and refer to the
Critical failure debug procedure
in this
appendix.
RN/FL is flashing red
and green
There is no NIC
installed behind
the HiPer NMC
NAC.
Install the NIC. Refer to the appropriate
Getting Started Guide.
Note: If the NIC is installed after the
NMC, reboot the NMC by removing and
reseating the NMC card.
RN/FL is not lit
There is no
power to the
NAC.
1
Make sure the NMC is installed
properly.
2
Make sure the chassis is powered on.
3
Make sure power supply status LED is
green.
