Hi, first post question, about M1G, which is on a (very) short list of replacement systems for an alarm system that has become end-of-life. I'm hoping going with M1G will fulfill many of our desires, and resolve a few bodgy workarounds. So...
We have a pair of doors that join two areas, areas that may be used (and thus have their area set) independently. The doors have contacts wired to a zone. But, in common with every other alarm system out there, the M1G allows a zone to be part of only one area. This is a aggravating annoyance requiring some sort of work-around.
Is there any elegant way to have a zone turn up in more than one area? Present ugly solution is a relay, with contacts wired to two zones to two areas, but that makes the circuit unsupervised. I've though of using a rule, but I cant see that one can have phantom inputs like one can have phantom outputs. I muse if one could electrically connect two zone inputs together, almost certainly needing to alter the value value of the EOL resistor to get the non-violated voltage correct, but some panels treat zones connected together as a fault and raise trouble. Third idea was wiring one zone normally, and having a second zone hard-wired into in violated mode, and having a rule to bypass or un-bypass the second zone. Or I could have a rule echoing the zone state to an output, and then using a relay with its contacts being the second zone input. Or the same thing but no relay, just the right value resistors to correctly shift the switched positive output voltage to the correct voltage for the zone input.
Anyone have any suggestions or comments? I don't want to have a second contact on the door as that involves wall-work that would be messy, I'd rather have an in-panel solution.
We have a pair of doors that join two areas, areas that may be used (and thus have their area set) independently. The doors have contacts wired to a zone. But, in common with every other alarm system out there, the M1G allows a zone to be part of only one area. This is a aggravating annoyance requiring some sort of work-around.
Is there any elegant way to have a zone turn up in more than one area? Present ugly solution is a relay, with contacts wired to two zones to two areas, but that makes the circuit unsupervised. I've though of using a rule, but I cant see that one can have phantom inputs like one can have phantom outputs. I muse if one could electrically connect two zone inputs together, almost certainly needing to alter the value value of the EOL resistor to get the non-violated voltage correct, but some panels treat zones connected together as a fault and raise trouble. Third idea was wiring one zone normally, and having a second zone hard-wired into in violated mode, and having a rule to bypass or un-bypass the second zone. Or I could have a rule echoing the zone state to an output, and then using a relay with its contacts being the second zone input. Or the same thing but no relay, just the right value resistors to correctly shift the switched positive output voltage to the correct voltage for the zone input.
Anyone have any suggestions or comments? I don't want to have a second contact on the door as that involves wall-work that would be messy, I'd rather have an in-panel solution.