Burglar Alarm system integration with digital I/O
The outdoor cameras have additional connectors to help with integration of the cameras into a complete burglar
alarm system.
Typically this type of wiring is carried out by a professional security system installer. If you are not familiar with the
terminology used here, please do not attempt to connect anything to this terminal block. Damage caused by
improper wiring is not covered by warranty.
When the camera senses motion, and if the digital output is set to “Enable” in the camera’s “Digital I/O Setup”
menu, it activates the digital output to trigger a burglar system. With a Maximum voltage of 60V, this output has
an open collector NPN Darlington transistor with the emitter connected to the GND pin. If used with an external
relay a reverse polarity diode must be connected in parallel with the relay coil to protect against voltage transients.
You would need to select a relay that uses less than 0.4A at 12V, and the relay and the diode would connect pins 3
and 4.
Conversely, if the digital input is set to “ Enable” in the camera’s “Digital I/O Setup” menu, a contact closure from
DI to GND (pins 1 and 2) would trigger an alarm condition in the camera as if the camera’s own motion detection
had triggered. This means that emails or FTP/HTTP uploads can be triggered or recording to Micro SD card can be
initiated. Both the digital input and the camera’s motion detection can be active at the same tie. If you only want
this external input to trigger the camera’s alarms you need to set all 4 motion detection windows in the “ Motion
detection “ menu to disable (unchecked)
The round connector at the end of the wiring harness that looks similar to the power plug is for optional
attachment of an amplified speaker system. This output is at line level similar to a computer speaker system. Using
this, audio upload can be initiated from the Microphone of a computer running Internet Explorer. There is no echo
suppression, so if this is used it would make sense to turn down the camera’s own microphone.
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