GPIO connector
The GPIO connector located on the input panel provides a flexible method of interfacing with the
projector. Seven GPIO pins are available on the nine pin D-Sub GPIO connector. Two other pins are
reserved for ground and power.
D-SUB pin number
Signal
Output high (Voh)
Notes
Pin 1
+12V
—
1A max
Pin 2
GPIO 2
5V
75mA max
(e)fused to prevent
damage
Pin 3
GPIO 4
Pin 4
GPIO 6
Pin 5
Ground
—
—
Pin 6
GPIO 1
5V
75mA max
(e)fused to prevent
damage
Pin 7
GPIO 3
Pin 8
GPIO 5
Pin 9
GPIO 7
All GPIO pins are weakly pulled up to 3.3V.
Enabling the wired remote keypad
The wired remote keypad interface supports the NEC IR communication protocol.
1. Connect the remote cable in the Wired keypad port on the Video Input panel.
Connecting devices and establishing communication
Christie M RGB Series Installation and Setup Guide
68
020-103483-04 Rev. 1 (04-2022)
Copyright
©
2022 Christie Digital Systems USA, Inc. All rights reserved.
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