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3
Troubleshooting
This chapter provides troubleshooting information for the DECbrouter 90 when
used as a standalone unit or when installed in the DEChub 90 backplane.
Before You Start
1. Verify the installation of the repeater.
2. Note the fault condition.
3. Isolate the problem.
Use Table 3–1 to troubleshoot a standalone DECbrouter 90. Use Table 3–2
to troubleshoot a DECbrouter 90 installed in a DEChub 90 configuration.
DECbrouter 90 Standalone Troubleshooting
Use Table 3–1 to troubleshoot a standalone DECbrouter 90.
Table 3–1 Troubleshooting a DECbrouter 90 Standalone Unit
If...
Then...
Do this...
All LEDs are off
There is a problem with
the ac power connection.
Check that the ac power supply
is properly plugged into the
power outlet. Check the power
to the power outlet.
Check the 7-pin connector to the
power supply. If the connections
are fine, then replace both the
power supply cord and power
supply.
(continued on next page)
Troubleshooting 3–1
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