ADTRAN DSU III ARdc User Manual page 82

Chapter 11. Testing and Troubleshooting
Message
CHECK TELCO
LINE
TEST FROM
TELCO
11-6
Meaning Probable Cause
Transmit/receive pair Telco wall jack wired
reversal detected. incorrectly.
Telco activated a Telco is testing circuit. Wait until test is complete or
loopback to test the
DDS circuit.
DSU III ARdc User Manual
Action
Switch wire pairs in wall jack
or contact telco service pro-
vider.
contact telco service pro-
vider.
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