Month: August 2023

Interconnect 2012HA and 2012JA

I’m trying to add a new 2012JA smoke alarm to an existing 2012HA on a DSC powerseries panel. The 2012HA is wired to the keypad input using its “Auxiliary Relay” terminals and an EOL resistor.

I think from the instructions I can connect -, +, GND together, then SIGNAL (on the 2012HA) to SIGRLY (on the 2012JA) — but can anyone confirm? Where does the EOL resistor go in this scenario?

Is there any benefit to having them the other way around, with the 2012JA connected to the panel?

https://imgur.com/gallery/BWrEsSd

submitted by /u/groogs
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August 1, 2023
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August 1, 2023
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