Appendix A: Alarm I/O Connector
66
8 Appendix A: Alarm I/O Connector
Some features of the Camera can be activated by the external sensor that senses physical
changes in the area Camera is monitoring. These changes can include intrusion detection
or certain physical change in the monitored area. For examples, the external sensor can be
a door switch or an infrared motion detector. These devices are customer provided, and
are available from dealers who carry surveillance and security products. Electrically, they
must be able to provide a momentary contact closure.
This Camera provides wires for general I/O terminal and RS485 interface as below:
Cable for I/O connectors:
Name
Number
Function
12VDC
1
DC 12V (50mA maximum)
DI
2
Digital signal input
GND
3
GND
DO
4
Digital signal output
485+
5
RS485 data +
485-
6
RS485 data -
User can refer to the schematic below to make a proper connection between I/O connector
and external sensor and output device.
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