Adtran TRC4106 Manual Do Utilizador

TRACER 4206 System Manual

Section 6, Troubleshooting Guide

612804206L1-1B

© 2002 ADTRAN, Inc.

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If the 

 LED is 

 (solid Red), it is an indicator that the received signal is within 10 dB 

(approximately) of the minimum operable signal. This condition is typically indicative of a path problem.

Recommended Actions:

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

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 coax connectors, replace the coax.

3. Verify the RF signal path by verifying the antenna alignment.

4. Check the integrity of the cable plant.

5. 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 T1(x) Status 
Screens and check the 

 field.

Recommended Actions:

1. Display the T1(X) Status Screen and Check the T1(X) Interface Alarm 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 is 
may be caused by improper framing.

Recommended Actions:

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, a Yellow Alarm will be generated at the TRACER 4106/4206 unit.

Recommended Actions:

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