Issues adding extension to alarm system.

livingthedream

Hi,

I had an extension built onto the back of my house a few years ago and had it wired with alarm cable at the time.

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____________
|.........................|..................|
| Original House.........................|
|............................Extension....|
|.........................|..................|

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___________|

The gap between the original house and extension is where there used to be a sliding door into the garden so I extended the alarm zone that the sliding doors were on to include the circuit of sensors in the extension (which consists of 5 combination shock and magnetic sensors).

The problem is that I get intermittent false alarms on the extension circuit when I set the alarm.

I have tried shortening the extension loop by 'shorting' out each of the sensors in turn to see if maybe I have a dodgy sensor somewhere but to no avail.

I have tried disconnecting the tamper circuit and using it's wiring for the alarm circuit just in case to no avail.

The only way I can stop the periodic false alarms is to completely short out the extension from the system (i.e. leave it un-alarmed).

It's been like this for a while now and I've been considering putting a PIR into the extension (it's one big room) to at least provide some security... Can I just add a PIR to the zone or are there other considerations? I guess the PIR would require a power source...

Anyone got any suggestions?

Cheers.

LTD

Alun

Better off here really ... http://www.boards.ie/vbulletin/forumdisplay.php?f=1366

livingthedream

Duh, I had a look around for a security thread and only found IT security stuff, yes that may be a better home for this...

Thanks..

I've re-posted in home & Garden.

Moderator feel free to delete this thread.

Cheers,

LTD.