Hi there Any alarm fitters that could advise me...... I would like to add another PIR to my Texecom alarm system but don’t want to run a cable on the surface. Hiding the cable is not an option. I have purchased a Keystone Wireless PIR and a keystone receiver. I understood that the receiver wires into the main panel. On all the other zones, they are a continuous loop and when the PIR is triggered the loop is broken which would set the alarm off. Simple. The Keystone is slightly different in that there is a +12v coming from the receiver in normal state and if the PIR is triggered this falls momentarily to zero. Now my question is how can I connect this to my Texecom system? The only way I can think of doing it is to get a relay which is holds a loop closed by the 12v of the receiver and would obviously break the loop when power is lost which would set the alarm off. This seems a bit of a bodge and I don’t like it. Any suggestions greatly appreciated. R
Keystone do a RX version with a relay output, could you not exchange the receiver? Failing that I'm afraid its a relay jobbie, not ideal I know. Just make sure the relay you use is surpressed!