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Electronic Theatre Controls Inc

Infrared Remote Focus Unit (IRFU) Pinout

This pinout applies to the InfraRed Remote Focus Unit, which was a very limited release product for early Expression line consoles.  This does not apply to the radio remote focus unit or anything else that connected via network or standard RFU wiring.

DIN 3 (Console)

Pin Signal
1 Ground
2 PPM Data
3 +12Vdc

DIN 5 (Receiver)

Pin Signal
1 Ground
2 PPM Data
3 +12Vdc
4

WSI Data from Transmitter

5 Trickle Charge Out
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