Steren CCTV-960 Manual De Instrucciones página 86

11. ALARM INSTALLATION
1. Observe the following connection diagram to use CCTV-960 with an alarm:
2. In the DVR enter MENU > ALARM > ALAARM INPUT CH, and select the alarm input (1-4
or all) that you want to confi gure.
3. Select a mode of operation of alarm for the selected channel:
-N.O.: Normally open. The sensor must have a constant voltage level output low. If the output
voltage changes from a low level to a high level the DVR will activate.
-N.C.: Normally closed. The sensor must have a constant level of high voltage output. The
DVR will activate if the output voltage changes from a high level to a low level.
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