Technical Details of the AUX Input. black forest motion PINE Lite

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6.4.1.

Technical Details of the AUX Input

The AUX input of the PINE Controller has two inputs which are internally connected to 3.3V via pull-up resistors.

The following schematic shows the internal wiring of the AUX socket.

If the AUX input is used, the inputs must be connected to the ground line via potential-free open collector/drain circuits.

Do not connect any external voltages to the inputs of the AUX socket! This can destroy the internal components. Only use potential-free, open collector/drain circuits (optocouplers or solid-state relay outputs) to connect the input lines to the ground line.

So far, only the AUX_B input (front center pin of the TRS connector) is used.

The AUX_A input is reserved for later developments.

Black Forest Motion ▪ PINE Controller User Manual www.blackforestmotion.com

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