Tutorial on wiring NVR ‘In/Out’ Alarm Triggers?

Hi all,

I am having trouble finding a good basic/generic tutorial on wiring devices (e.g lights/kaxon/siren) to the In/Out trigger interface of an NVR system. My Google-fu is decent but this seems to be a more advanced/commercial area. I’d prefer a written guide over a video but anything helpful is appreciated. Has anyone come across or aware of a good tutorial for this?

submitted by /u/TheCallOfAsheron
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October 30, 2022