User Manual

Table Of Contents
TRACER 5045 System Manual Section 6 Troubleshooting Guide
612805045L1-1A © 2003 ADTRAN, Inc. 55
9. Examine the RF LOW LED on the front panel of each TRACER 5045. If this LED is illuminated,
then the TRACER 5045 is receiving a relatively weak signal; however, if the
RF DOWN LED is
not illuminated, then the received signal is being suitably processed by the TRACER 5045 system.
If you are receiving a weak signal (
RF LOW is ON), please verify that the weak signal is not being
caused by a faulty cable, an insufficiently tightened cable, or some other installation-related
problem. Also, make sure an unreasonably large attenuation value has not been selected if you are
using an attenuator on a workbench setup.
Use the tables in Section 2, Microwave Path Engineering Basics, of this manual to select the
proper free-space attenuation value (in dB) based on the estimated length of the microwave path.
Remember to subtract both antenna gains (local and remote) from the attenuator setting.
10. Command a link loopback in one TRACER 5045 unit and run a test pattern from the connected T1
equipment. This will verify the data path between the T1 equipment and the TRACER 5045 unit.
Installing/Configuring T1 Hardware
1. If possible, attach any or all of the intended T1 hardware to the TRACER 5045 units using the
same workbench setup. This step offers the perfect opportunity to configure your T1 hardware for
proper functioning with the TRACER hardware.
2. To significantly reduce the probability of an unsuccessful field installation, resolve any remaining
T1 equipment-to-TRACER 5045 configuration issues before field installation.
External pattern generators are required to test data path integrity. A T1 BERT tester is
suggested.