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Troubleshooting

Introduction

In the process of establishing a link, various problems may arise, either single link problems
or co-located link problems. The possible problems are:
Two units are connected but there is no radio link between them
Poor performance of a radio link
There is a radio link but the LIU does not operate or is not synchronized
There is a radio link and the LIU operates, but the end equipment does not
synchronize
The radio link is stable, but the error rate on the end equipment is unacceptable
The radio link is fine, but the voice quality/data rate is poor, or the end equipment
loses synchronization from time to time
The system resets with an error message
One or more links function (are synchronized), but when adding another link
performance degrades
The Fractional E1/T1 link is synchronized, but one or some systems that are
connected to the end equipment (i.e. telephone, fax, voice mail) is not working
properly
This chapter helps you to identify the source of the problems, and provides a recommended
solution.
Use this chapter as guidelines to troubleshooting, but remember that at any given site more
than one of these problems can arise, and in different variations.

Troubleshooting problems and solutions

Problem 1: Two units are connected together but there is no radio link between

them

Probable cause:
Wrong unit configuration
RF installation problems