A/B

A/B switching and muting module

Compact utility module for routing and muting.
Each of the upper and lower sections has a switch which connects the highlighted inpit / output (I/O) jack socket to either the ‘A’ or ‘B’ jack. There is also a centre mute position on each of the switches which disconnects the I/O jack from both A and B.
The I/O jacks are normalled to each other, so anything plugged into one of them will be sent to the other if there is nothing plugged in to it.
If there are jacks plugged into both highlighted jack sockets the upper and lower section operate independently.
The module is passive and the switching is bidirectional, so the switched can be configured and an inout with 2 outputs or two inputs to one output.

http://database-help.co.uk/mheurorack/a-b/