Swinvat is two modules in one.
For the upper part a dual active attenuators which can be configured also as attenuverters, disconnected inputs are referenced to +5V.
If output 1 is not connected the signal goes into the second attenuator.
each attenuator has two LEDs for viewing the polarity of the signal. Red=Negative/Green=Positive
For the lower part a multiple 6-way A/Off/B switch with LED incation.

+12V = 14mA / -12V = 14mA
Width : 8HP
Depth : 27mm avec connector 
Tested and assembled by hand.

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