Using Front Panel LEDs to Solve Problems 73
VCN AP
Failure
Indicated
OFF after
connection:
Possible
causes:
■faulty
power
adapter
■problem
in the
VCN AP
Replace ac/dc adapter
and try again. If the
problem is eliminated,
the problem was the
adapter. If not, the
problem is in the VCN
AP; replace it and
send it to 3Com.
OFF and the
user data
cable is
connected.
ON (green) One of the items
below failed:
■user data cable
■user PC NIC
■VCN AP
Try replacing each of
the first 2 items. If the
problem is not
eliminated, the
problem is in the VCN
AP; replace it and
send it to 3Com.
The Line LED
does not turn
steady green
during 2
minutes after
POST
Possible causes are:
■no connection
■wiring
■VCN AC
■punch down
block/patch panel
Power the VCN AP
OFF, then ON. If the
VCN AP starts
properly, the problem
is solved. If not,
replace it and send it
to 3Com.
Tab le 9 Determining VCN AP status from the LED Indications after POST
State Ethernet Line Power Notes