Справочник Пользователя для Adtran TRACERT1L7

61280.003L1-1B

P

AGE

 45

4/12/99

The Remote Fail light will activate after a Remote Test has failed.

• 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. ........................................................................................... 1

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 &
-91 dbm.

This alarm will activate if the RX power is below -80␣ dbm.

• 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

1.

Verify the RX power is between -55 & -91 dBm 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 mast-mount or rack-mount RFC.

8.

Replace the RFC.

T

ROUBLESHOOTING

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.