User guide
37
Alarm In
This page allows you to configure the input supported by the camera. The Port can be defined as
Normally Open or Normally Close state, and their Normal state can be configured.
An input will be inactive as long as its Normal state equals its Current state. The options for Normal
state are NO (Normally Open) and NC (Normally Close). The input is activated when the Current state
changes so that it no longer equals the Normal state.
• Alarm In Port 1 Setting
Click the Enable alarm in port 1 checkbox to enable the Alarm In port 1.
- Type: The default setting is NO.
* NO: Normally Open
As an example, if the Normal state for a pushbutton connected to an input is Open circuit, as
long as the button is not pushed (and the Current state remains an Open circuit), the state will
be inactive.
* NC: Normally Close
When the button is pushed, the circuit is grounded, the input's state changes to Grounded circuit
and the input will no longer be in its normal state - it will have become active.
An input on the camera has an Open circuit when disconnected or when there is a voltage.
- Dwell time: Set the dwell time an event lasts from the point of detection of an alarm input. The
default setting is 60 seconds.
When the settings are complete, click Save, or click Reset to revert to previously saved settings.