How to wire the camera alarm input of Flexidome IP 3000i IR?

[#1]

According to its Data Sheet, the Flexidome IP 3000i IR camera has 2 options to activate the alarm input.

Step-by-step guide

The pin assignment for the alarm I/O is the following:

• Pin number 1 → Signal Alarm output
• Pin number 3 → Signal Alarm input

Wiring diagram for alarm input

The following diagram demonstrates how the device triggers alarm input through the external mechanical switch or through the external open collector circuit.

A full Alarm wiring guide for 3000i cameras it’s available for download on the web catalog here.

Please refer to the diagram below if you would like to get alarm input from some physical sensors.

Connect Alarm Input / Output Port:

• Mode A: 
  • Level application: Alarm output low level, alarm output is Open Collector (OC);

It needs to increase pull-up resistance externally to work normally. After external pull-up resistance is loaded, the default output signal is high level (external pull-up voltage), and it switches to low level when there is alarm output.

• Mode B: 
  • Switch application: Alarm output is used to drive external circuit.