acdcelectric
Member
I am hooking up some "System Sensor" model 2WTA-B combination photoelectric/thermal smoike detectors with built in sounders.
These are 2-wire units and are connected in series on zone 16 on an Elk M1 with an EOL at the last unit.
When testing, will one unit activate all the sounders (or is that not possible) or is that the puropose of using a reversing relay? If it is, does it go on the last unit before the EOL or is the EOL even necessary?
I have an Elk -45 siren set up in the attic that can be used if one sensor can not activate the other sounders.
These are 2-wire units and are connected in series on zone 16 on an Elk M1 with an EOL at the last unit.
When testing, will one unit activate all the sounders (or is that not possible) or is that the puropose of using a reversing relay? If it is, does it go on the last unit before the EOL or is the EOL even necessary?
I have an Elk -45 siren set up in the attic that can be used if one sensor can not activate the other sounders.