ADTRAN TRACER 2xT1, User Manual

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TRACER 2xT1 User’s Manual
61280003L2-1B
Section 4 Troubleshooting
42
Preliminary
I M P O R T A N T
If problems persist after you have followed the Recommended Actions, contact ADTRAN Technical
Support at (800) 726-8663.
“Fail” light is lit after pressing “Remote Test” button
The Remote Fail light will activate after a Remote Test has failed.
Recommended Action
Possible Cause (see list below)
• The 10-second BERT has failed over the RF link to the far-end. ............... 1
• The RX power may be below or near the -91 dbm threshold
(-90 dBm 5.8 GHz) ....................................................................................... 1
Recommended Actions:
1. Check the RX power level using the VT-100 user interface or the RSSI DC voltage test
points. Verify the RX power is between -55 and -91 dBm (-90 dBm 5.8 GHz).
“RF Low” light is on
This alarm will activate if the RX power is below -80 dbm.
Recommended Action
Possible Cause (see list below)
• The RX power is below -80 dBm. ..................................................... 1-5,7,8
• The far-end transmitter is off, or is transmitting low power. ............ 2-5,7,8
• The RF path is not aligned. ....................................................................... 3,8
• Water is in the antenna feedhorn or connectors. ...................................... 4,8
Recommended Actions:
1. Verify the RX power is between -55 and -91 dBm (-90 dBm 5.8 GHz) using the VT-100 user
interface or RSSI DC voltage test points.
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. Check all connections between the BBP, the RFC, and the antenna.
6. Check the IF and RF cables for shorts.
7. Check the connections inside the mastmount or rackmount RFC.
8. Replace the RFC.