Re: programming an Ademco Vista

["Robert L Bass" <RobertLBass@xxxxxxxxxxx>]

rickm wrote:
>
> The problem was an intermittent short between the power wire and one of the
> signal wires behind the wall.

There is a simple solution to that problem 50% of the time, Rick.  Most
burglar alarm panels use the negative as a common return for the zones
(sensing circuits).  If the negative is shorting one of the zone wires and an
EOL is in use at the sensor it can cause a fault on the zone.  Disconnect the
negative wire at the panel and the sensor.  Run a short jumper between the
negative side of the zone wiring and the negative power terminal in the
sensor.

The reason I said the solution is simple 50% of the time is that it could just
as easily be the positive wire causing the problem.  In that case, you have
disconnect the positive at the panel and the sensor and then shuffle the
remaining three to get the same effect.  You can test which wire is at fault
with a multimeter first.

--

Regards,
Robert L Bass

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