Technical Manual

17
Speed dome alarm signal adopts grounding connection mode.
This series speed dome support two alarm input types: normal open/normal
close. You can refer to 5.4.4 for the setup.
Please follow the procedures below. ：
a) Parallel connect the GND with com (please use out sourcing power to
alarm detector.)；
b) parallel connect grounds of alarm detector and speed dome ；
c) connect alarm detector NC port with dome alarm in port
d) In dome alarm setup, if contact type is normal open (NO), low voltage will
activate alarm.
e) In dome alarm setup, if contact type is normal close (NC), high voltage
will activate alarm.
Please refer to Figure 9.
Figure 9 alarm connection
4.2.1 System Layout
4.2.1.1 General connection