Troubleshooting - Black Box LT0007A-2U Manual

5.1 Fault Isolation and Troubleshooting
Since this unit is logically controlled by a CPU,
here are the things to try if there is any malfunction:
1) Disconnect and then reconnect the power to
the unit; 2) Verify that the unit is performing a
short test to the LEDs; 3) If the problem reoccurs,
call for technical support.
SYMPTOM
Corresponding LED is ON.
Workstation remains out of
the ring (network).
Corresponding LED is OFF.

5. Troubleshooting

SMART LOBE ACCESS UNIT
ACTION
1. Check the switch for proper
position.
2. If the problem still exists, dis-
connect all cables from the unit
and repeat set-up procedures.
Check all cables for proper
wiring; then reconnect all
cables back to the unit and
resume operation.
1. Check the cable attached to
the port for proper wiring and
connections.
2. If the problem still exists, dis-
connect all cables from the unit
and repeat set-up procedures.
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