2 link diagnostic procedure – CANOGA PERKINS 2262 T1/E1 Fiber Optic Modem User Manual
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Canoga Perkins
2262 T1/E1 Fiber Optic Modem
4.2.2 Link Diagnostic Procedure
Symptom
Step
Possible Cause
Remedy
Tx LED is off
1
Reversed data input and
Swap T1/E1 data input
output connection.
and output cable
connection.
2
No data input at
See Section 4.2.3,
metallic interface.
Loopback Diagnostic
Procedure, step 1.
Tx LED is off
3
Unit failed.
Return to factory for
repair.
Rx LED is off
1
Reversed optic transmit
Swap the optic transmit
and receive connection.
and receive cable
connection.
2
Local or remote side
See Section 4.2.3,
system or fiber optic
Loopback Diagnostic
link failure.
Procedure, steps 2 to 4.
High error rate
1
Bad optical connection.
Clean the optic connec-
tor end surface.
2
Local or remote side
See Section 4.2.3,
system or fiber optic
Loopback Diagnostic
link failure.
Procedure, steps 1 to 4.