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61280003L2-1B
Section 4 Troubleshooting
If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical
Support at (800) 726-8663.
Recommended Actions:
1. Check the RX power using the VT-100 user interface or RSSI voltage.
2. Check the far-end transmitter for operation and proper transmit power.
3. Check the RF path using a spectrum analyzer or RSSI voltages for proper alignment. Have
path professionally re-aligned and check system path engineering.
4. Check the antenna feedhorn and all outdoor connections for water.
5. Verify same antenna polarity is used at both ends.
6. Change the frequency of one radio through the VT-100 user interface or front panel button.
7. Set both units to the same PN code.
8. Check all connections between the BBP, the RFC, and the antenna.
9. Check the IF and RF cables for shorts.
10. Check the connections inside the mastmount or rackmount RFC.
11. Replace the RFC.
"BPV" light on T1-A or B is lit
This alarm will activate when the incoming T1 stream presents BPVs.
Possible Cause
•
The incoming T1 contains BPVs or errors. ................................................. 1
•
The line codes between DS1/DSX-1 equipment and the
TRACER are incompatible. ......................................................................... 2
Recommended Actions:
1.
Check the incoming DS1/DSX-1 signal for BPVs using a T1 test set.
2.
Correct the line code on the TRACER or DS1/DSX-1 equipment.
RED light on T1-A or B is lit
This alarm (Loss of Signal) will activate when there is no signal present at the T1 interface.
Possible Cause
•
No DS1/DSX-1 signal or a degraded DS1/DSX-1 signal is present
at the DS1/DSX-1 input. ........................................................................... 1,2
•
The connection at the T1 input or DS1/DSX-1 equipment is faulty. .......... 2
38
I M P O R T A N T
Preliminary
Recommended Action
(see list below)
Recommended Action
(see list below)
TRACER 2xT1 User's Manual
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Table of Contents
Troubleshooting
