• You've been granted Beta access to this site, allowing you to explore some of the new features while they're still under construction. More information can be found in the Beta forum.

24VDC Power for 4-Wire Sensor on Elk System?

LoudEMBA

New Member
Is it possible to power 4-wire sensors (motion detectors, glass breaks) on a 24VDC circuit, while connecting the switch/alarm circuit to an Elk M1G (which I beleive is 12VDC)?
 
I'm assuming the Elk is powering the switched circuit, and that the power circuit for the 4-wire sensor power is independant of the switch circuit. But, you know what they say about assuming so I thought I better ask.
 

RAL

Senior Member
For most 4-wire sensors, like motion and glass break detectors,, the alarm contact is separate from the power - it's just a simple relay contact. So yes, you could provide 24V power from a separate supply, and just connect the sensor contact to the panel's zone inputs. 
 
Top