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.
2. Connect the remote cable in the bottom of the remote.
3. On the projector, select MENU > Communications > Projector Communications.
Connecting devices and establishing communication
Christie Griffyn Series Installation and Setup Guide
77
020-103314-08 Rev. 1 (06-2022)
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