CCTV Camera/ Device Installer Question:
Download Questions PDF

What is alarm Input?

Answer:

Some DVRs and security cameras have alarm inputs, which can accept input from a sensor device such as a door contact or a passive infra-red motion detection which trigger the camera or DVR to take some action such as to begin recording.

Download CCTV Camera/ Device Installer Interview Questions And Answers PDF

Previous QuestionNext Question
What is Dwell Time Programming?Tell me what technologies allow me to watch the video on my phone?