![]() ![]() These outputs can be used for different applications like turning lights on or off in front or back yards, operate garage doors, temporarily deactivate or activate sensors like motion detectors or door switches. ![]() You will have to mount the Electrical Strike at the door, run 18/2 AWG cable from the Electrical Strike to the location of your DVR, connect one wire of the 18/2 cable to one of the connection points on the NO output of your DVR, and the other wire to the negative side of the 12VDC Power Supply, and run 1 wire (preferable red) from the positive lead of the 12VDC Power Supply, to the other connection point of the NO output you are using from your DVR (see figure 1) Keep in mind that these outputs are no power supplied, meaning they don’t supply power from the contacts, so you can use them as contacts to control external powered circuits also, this contacts have certain tolerance, from 0.25 to 2 Amps, depending on the model of your DVR and the type of voltage you are using.įor example, if you want to unlatch a door at your office, you will need an external 12VDC Power Supply, a 12VDC Electrical Strike, and 18/2 AWG cable. Normally Closed output has the inverted effect, meaning there will be continuity between connection points while the output is inactive, and once the output is active it will be no continuity between the connection points. The NO output (Normally Open) means the initial state of the output position before activation, in this case there will be no continuity between connection points while the output is not activated once the output is energized, there will be continuity between both connection points. These outputs are located in the back of your DVR, and can be NO (Normally Open), or NC (Normally Closed). The DVR is commonly used or mostly used as a recording device for Video surveillance, some DVRs have Audio Inputs (almost everyone now days), but your unit also may come with extra outputs to execute actions like turn lights on, unlatch doors, open the garage of your house, etc.
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