Chapter 7: Service and troubleshooting
EST3X Technical Reference Manual 229
Addressing faults diagnostics
Most addressing faults are quickly located because the wrong address gives a
clue as to the fault location. For example, if module 164 is duplicated and module
174 is missing, then the module 174 probably has its tens digit off by one
position.
Duplicate device faults may be harder to locate. For example, the carpenter put
up a partition-hiding sensor 53, then the electrician noticed it was missing and
spliced in a new base. Now there are two sensors at address 53.
To identify devices with duplicate addresses, remove one of the suspected
duplicate sensors. The duplicate fault should clear within 30 seconds if the
sensor removed is a duplicate. Disconnect half of the loop. Allow a minute or so
for the loop to stabilize and the faults to report. From the Ready Comm tab in the
diagnostics window, click New Data from Loop Controller. The remaining
duplicate sensor (53) should still appear as if it is physically connected between
the loop controller and the wiring break. Continue to add or remove segments of
the loop in gradual increments, repeating the diagnostics upload until the
physical location of the problem detector is located.
Using HyperTerminal to troubleshoot the
system
HyperTerminal is a useful tool for gathering information from the control panel
and for troubleshooting system faults through an RS-232 port connection. The
information gathered can be saved as a plain text file (TXT extension) and
submitted electronically to technical support for evaluation.
HyperTerminal comes with your Windows operating system as an installable
option. HyperTerminal, if installed, is typically found on the Accessories menu
(Start > Programs > Accessories > HyperTerminal).
Setting up a HyperTerminal connection
Before you can gather information from the control panel, you must set up a
HyperTerminal connection.
To set up a HyperTerminal connection:
1. Start HyperTerminal.
2. In the Connection Description dialog box, type a name for the connection in
the Name box, and then click OK.
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