Christie CP2220 User Manual page 35

If you are wiring your own GPIO cable for use with a server or 3D device such as an IR emitter or a polarizer,
follow the circuit diagram.
Recommended Operating Point
CP2220 User Manual
020-100420-08 Rev.1 (5-2014)
= 5 mA
Max. Current = 50 mA
Forward Voltage Drop ~ 1.1 V (@ 5 mA)
GPO
GPO
Figure 3-4 GPIO Circuit Diagram
Section 3: Connect Devices to the Cinema Projector
+5 VDC (External Supply)
2K
1K
To Center
Pin of BNC
To Shielding
of BNC IR Emitter
3-5