Questions and answers
Page 155
FortiRecorder 2.4.2 Administration Guide
2.
Configure the digital input and output settings.Note that this setting is only available on
FortiCam MB13 cameras. More cameras will support this feature in the future.
The digital input can be configured to trigger when the signal is:
• LOW (ground)
• HIGH (+5V)
• Rising (transitioning from LOW to HIGH)
• or Falling (transitioning from HIGH to LOW)
If not connected, the camera will see the digital input as HIGH.
The digital output can be configured to be either grounded or open when in the triggered
state. When not triggered, it will be in the opposite state.
For example, if opening a door causes a sensor switch to open, then the switch could be
wired between DI and ground. DI will be grounded (LOW) while the door is closed and will go
HIGH when the door opens. DI could then be configured to trigger on the rising edge. When
the door opens, DO would be set to its triggered state and a video clip will also be recorded.
Triggering on the rising or falling edge can be useful if the DI might be held in the triggered
state for a long period. In the example above, if DI were set to trigger on HIGH and the door
is left open for a long period then the camera would trigger repeatedly.
