Module A-175 (Dual Voltage Inverter) is exactly what it says it is: two identical inverters, which will take a voltage and output it in an inverted form – so that an input of +5 V will be output as -5 V, an input of -2 V will be output as +2 V, and so on.
Two LEDs give a visual indication of the (positive or negative) output signal.
For more detailed information please look at the English user’s guide: A175_man.pdf
Width: 4 HP / 20.0 mm
Depth:: 35mm (measured from the rear side of the front panel)
Current: +20mA (+12V) / -10mA (-12V)