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asi2012

Remotely opening door with a digimerge DVR

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Hey guys I searched but could not find anything on how the alarm output of a DVR would be able to release a door strike.

 

I would be using a digimerge DH200+ which has a programmable NO/NC alarm output relay which I can operate manually from a remote site.

 

Since it does not supply power to the strike how would I release it since my strike would require 12 or 24 volts. Should I use a magnetic lock?

 

The door is a residential wooden one if it matters.

 

Thanks in advance I really like this site

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Just think of the relay output as a computer-activated pushbutton - you'd wire the strike as you normally would with a power supply and trigger switch, except you wire the relay contacts in place of the switch.

 

Use something like this: http://www.rutherfordcontrols.com/products/electric-strikes/4-series/ - get one that's fail-secure (meaning it's locked when NOT energized), then wire it through an NO contact. When the contact closes, the strike is energized, and unlocks. Remove power, and it's locked again.

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