User`s manual

16 Channel Digital Video Recorder

2. Open/Close output

A: N.O. Normal open，close when triggered. DVR must set as low voltage alarm.

B: N.C. Normal close，open when triggered，DVR must set as high voltage alarm.

Please refer to the picture below, channel 2 to channel 16 are the same as channel 1.

Alarm output

There are three alarm output pin, the status of these pin are illustrated as below

COM

Before alarm

After alarm

There is an example for alarm output connection

COM

Alarm