Table 5–3 (Cont.) Troubleshooting a DECrepeater 90FA Standalone Unit
If...
Then...
Do this...
If the fiber-link LED of the
receiving port lights, the idle
signal is present.
Check the cable to the
external device, and check
the external device for
correct operation.
If the fiber-link LED of the
receiving port does not come on
Replace the cable with a
known good cable.
If the fiber-link LED of the
receiving port still fails to come
on
Replace the repeater.
The port 2 status LED
is off.
Port 2 is either segmented or the
LED has failed.
Check to see if port 2
status LED is defective.
Remove all front panel
connections and the port
0 connection. Power
the repeater off and on.
Ensure that the port 2
status LED lights and
remains on.
If port 2 status LED does not
light and remain on
Replace the repeater.
If port 2 status LED lights and
remains on
Restore all port connec-
tions on the repeater.
Check port 0 and port 1 status
LEDs. If both port status LEDs
are off
Check to see that port 0 or
1 are properly connected
to active network
segments. Using previous
troubleshooting steps,
ensure that either port 0
or port 1 is functioning
before troubleshooting port
2.
If either port 0 or port 1 status
LEDs are on, and port 2 status
LED goes off, it is likely that
port 2 is segmented. Correction
of the segmentation fault should
correct the problem.
Check the AUI connection.
Ensure that the cable is
properly connected and the
slide latches are secured.
(continued on next page)
5–6 Troubleshooting