59
Relay Output NO/NC/COM
The alarm output can be NO (Normally Open) or NC (Normally Closed), depending on the
settings in the menu.
- NO + COM are a normally open circuit. Alarm is triggered when the circuit is closed.
- NC + COM are a normally closed circuit. Alarm is triggered when the circuit is
opened.
6.4 PTZ camera installation
Connect the PTZ’s “D+” to the DVR’s “RS 485 D+”, and the PTZ’s “D-“ to the DVR’s “RS
485 D-“. After the connection and the related setup are done, users are able to control the
PTZ camera using the front panel buttons or included software.
NO / NC
COM
POWER
SUPPLY
+12V
GND
