Optoma ZU1100 User Manual page 29

SETUP AND INSTALLATION
Wired remote
Remote In connector is designed to work with Wired Remote or IR Keypad with longer range and provides fast,
easy set-up and reliable individual control of a specific projector. Remote Out connector sends the IR control signal
to the next projector when using multiple projectors.
The connector type is 3.5mm Phone Jack connector:
Power
IR_IN
GND
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