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12.2 Handset Com Error troubleshooting
procedure
Step 1: Check alarm log
Check for any active/recent alarms. E.g. low voltage may cause the error and
therefore look for any low voltage alarms.
Step 2: Below deck (BDU, Handset, Cradle) or Above deck (ADU) error?
1. Remove power
2. Disconnect antenna cable
3. Reinstall power
4. Switch on system (disregard "Antenna link down" error")
Does "Handset Com error" still appear? If yes, it is a below deck error. If no, it
is an above deck error.
Step 3 (if Below deck error): Cradle, Handset or BDU error?
1. Check/replace Handset
2. Check/replace Cradle
If these replacements do not remove the error return defective BDU for repair
Handset Com Error troubleshooting procedure
Chapter 12: Troubleshooting
75
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Table of Contents
Troubleshooting
