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Titathink Hidden Cameras

  1. Home
  2. Titathink Hidden Cameras
  3. Setup via Web Application
  4. 6-3. Digital I/O Setup web page

6-3. Digital I/O Setup web page

The hidden 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.

 

Before you get started configuring this Digital I/O Setup page, please see this article General I/O Terminal.

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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