User Manual Chapter 7

7-18 Chapter 7: Testing and Troubleshooting
Troubleshooting DecisioNet System Problems
The following tables help you troubleshoot the DecisioNet System.
ESL Troubleshooting
Problem Causes Possible Remedies
ESL displays
dashes.
Defective ESL. Replace ESL.
ESL flashes power-
on diagnostics.
Defective ESL. Replace ESL.
ESL displays low
battery symbol (
).
Battery is low. Release I ESL: replace ESL.
Release II ESLs: replace batteries.
ESL displays broken
characters or
missing segments.
Defective ESL. Replace ESL.
ESL displays are
severely scrambled.
Poor coverage. Refer to tables in the following
section, Coverage Problems.
Defective ESL. Replace ESL.
ESL outside coverage area. Bring ESL into coverage area.
CBS was recently power
cycled.
Wait. A ESL can take several
minutes to re-synchronize after
CBSs have been power cycled.
Single ESL does not
synchronize. ESL
displays sync dot
(●).
Poor coverage. Refer to tables in the following
section, Coverage Problems.
ESLs outside coverage
area.
Add or modify infrastructure to
cover area.
Poor coverage. Refer to tables in the following
section, Coverage Problems.
CBSs are turned off. Turn on CBS system.
Multiple ESLs do
not synchronize.
ESLs display sync
dot (●).
CBS communications are
closed or software is not
running.
Re-start software.