Expression Family RFU Compatibility

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Explanation

There are two generations of RFU for use with the Expression family of consoles. The original RFU has three seven-segment LED displays and is only compatible with the following consoles:

Expression
Insight
Impression
Concept

RFU1

The RFU2 has a single LCD display and is compatible with the following consoles:

Expression 2 and 2x
Expression 3
Insight 2 and 2x
Insight 3
Impression 2
Concept 2x
Express (all variants)

RFU2

Note that while an RFU plugged into an incompatible console will power up, it will not function properly and its display will show garbage text. As the cable pinout and voltages for both generations of RFU are the same, this should not damage your RFU or console.