Interlogix ATSx500A Series Installation And Programming Manual page 305

Condition
Some or all expander zones are
permanently in tamper (or
permanently in alarm if "8.6.1 Input
mode" on page 248 is set to Single
NO or Single NC).
Four-way relay modules (ATS1810)
being used with the expander do
not function, but some of the LEDs
on the module appear to be
permanently on
8-way relay modules (ATS1811) or
16-way open collector modules
(ATS1820) connected to the
expander do not function
Advisor Advanced ATSx500A(-IP) Installation and Programming Manual
Possible cause
The zone numbers for the expander have been calculated
incorrectly, and zone type numbers have therefore been
assigned to the wrong zones in the zone database. See
"Configuration" on page 30.
The end-of-line resistors are wrong or the wrong resistor
value is programmed in "8.6.2 EOL" (see page 248).
There is a problem with wiring the zones. To check the
voltage or resistor values, see "Zone connection" on page
23.
The ATS1202 expansion modules (if fitted) have the DIP
switches incorrectly set.
Expansion module:
DIP switch 1
DIP switch 2
DIP switch 3
DIP switch 4
DIP switch B on the expander is set to On (DIP switch B
should only be On if 8-way relay (ATS1811) modules or 16
open collector modules (ATS1820) are being used).
DIP switch B on the expander has not been set to On.
Chapter 7: Troubleshooting
1st 2nd 3rd
On Off Off
Off On Off
Off Off On
not used
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