Connecting to External Devices

External devices are connected to the camera through the I/O terminal block. The pinout for the I/O terminal block is shown in the following diagram:

Note: The camera can be connected to an external microphone and speaker through the I/O connector.

Figure 1: Example application.

  1. Purple — +12 V output for relay drive

    Note: If you are using this relay output, the camera must be powered using PoE+ or the auxiliary power cables.

  2. Grey — Relay ground return
  3. Red — Relay input 1
  4. Pink — Relay output 1
  • * — Relay
  • ** — Switch
  • Yellow — Audio ground return
  • Brown — Audio input
  • Green — Audio output

Note: The 12 V connection can be used to energize a relay coil with up to 50 mA. If more than 50 mA is required, an external power supply up to 25 VDC at 120 mA can be used.