Camera connection
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FortiRecorder 2.4.2 Administration Guide
PIR Sensitivity
Digital
input/output
Some cameras come with DIDO terminals and support digital input and
output. For example, on the FortiCam MB13 camera, according to your
configuration, power signal from the digital input can trigger the
camera to record a video clip. You can also optionally connect other
devices to the digital output, such as a relay to turn on/off another
device.
The digital input (DI) 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 (DO) can be configured to either be 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.
Setting name
Description
DIDO connection diagram on FortiCam MB13
4. Power 5V
3. Digital output
2. Digital input
1. Ground
