GPI Port

The GPI port on the back of the chassis is used to connect one or two external AirCleaner Hardware Control Panels. The four GPI inputs are fixed to a video and audio concealment trigger for Users one and two. All GPIs are level triggered and remain triggered for as long as the concealment is triggered (the circuit is closed).



Pin Signal
1 Video Concealment for User 1
2 Audio Concealment for User 1
3 Video Concealment for User 2
4 Audio Concealment for User 2
51 Manual Bypass Switch
62 Tally 1 (External Lamp - Manual Bypass Active)
73 Tally 2 (External Lamp - Concealment Active)
8 Tally Common
9 Ground
  • 1 Pins 5 and 9 are used to connect an external contact closure switch (not provided) to remotely operate the Manual Bypass function.
  • 2 Pins 6 and 8 are used to connect an external tally lamp (not provided) that is activated while the Manual Bypass is active.
  • 3 Pins 7 and 8 are used to connect an external tally lamp (not provided) that is activated while an Audio or Video concealment is active.