ADTRAN 1200664L1, Manual

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61200664L1-1B OCU 45 User Manual 27
Chapter 3
Troubleshooting and
Maintenance
Troubleshooting guidelines and maintenance information are provided in this
chapter.
TROUBLESHOOTING
Power
Condition: P
OWER
LED is not illuminated.
• If locally powered, verify the power cable installation.
Electric LOS
Condition: E
LECTRIC
L
OS
LED is illuminated.
1. Verify that the cable from the network demarcation is connected to the
dual BNC connectors (labeled
E
LECTRICAL
I
NTERFACE
) located on the
back panel of the OCU 45.
2. If all connections seem intact, check the DS3/STS-1 device on the other
end of the circuit.
Electric Alarm
Condition: E
LECTRIC
A
LARM
LED is illuminated.
1. Line coding violations (LCVs) are being received on the electrical
interface. Check the electrical interface configuration and verify the
current setting is correct.
2. If the current electrical interface configuration setting is correct, check
the DS3/STS-1 device connected to the OCU 45.