Connecting Kidde SM120X

M1 Support Forum Connecting Kidde SM120X

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    Douglas Denno

    The seller of my M1 system said a Kidde SM120X relay could be used to interface the M1 with 120V interlinked smoke detectors.  I have Zone 16 connected to the SM120X Normally Open with a 2200Ohm EOL in parallel.   System is reporting 7.1V and says Status is short (-), which generates a fault.  JP1 is set to the 2-wire detector position.

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