Adtran TRC4106L2 Manual Do Utilizador

TRACER 4106/4206 System Manual

Section 6  Troubleshooting Guide

612804206L2-1A

© 2004 ADTRAN, Inc.

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If the 

 LED is 

 (solid red), it is an indicator that the received signal is approaching 0 V of RSSI. 

This condition is typically indicative of a path or installation problem.

1.

Verify the far-end transmitter power setting is the value that the link planning budget requires.

2.

Check all coaxial cable connectors for solid connections. Check for water and corrosion around any of 
the connectors. If water is apparent in the coaxial connectors, replace the coaxial cable and the 
connectors, making sure to properly weatherproof the replacements.

3.

Verify the RF signal path by verifying the antenna alignment.

4.

Check the integrity of lightning arrestors.

If the 

 LED is 

 (solid red), it is an indication that the TRACER 4106/4206 is detecting an active T1 

alarm. To identify the T1 interface in alarm and the specific alarm present, display the 

 screens 

and check the 

 field.

1.

Display the T1(

 screen and check the T1(

 field to identify the active alarm. 

2.

Follow the steps below for the appropriate alarm.

 is an indication that the TRACER 4106/4206 may be unable to detect a viable T1 received 

signal from the connected T1 equipment. This error may be due to a degraded signal or no signal, or may 
be caused by improper framing.

1.

Verify that the T1 cable is connected to the T1 interface on the TRACER 4106/4206.

2.

Verify the connections at the opposite end of the T1 cable.

3.

Verify that the framing mode (D4 or ESF) is the same for both the TRACER 4106/4206 and the T1 
equipment.

A Yellow Alarm is generated by the attached equipment. When the attached equipment’s T1 interface is 
in Red Alarm, the TRACER 4106/4206 generates a Yellow Alarm.

1.

Follow the troubleshooting steps for Red Alarm, but do so at the attached equipment.