extension for SWITCH, it adds 4 electronic switches

The 4ONOFF is four eletronic switches. Simple ON-OFF of any signal with a GATE signal.

Each switches are independant
But you also have a common input
And a mixer output.

The GATE control is not on the front panel, because the module is intended to be controlled by the SWITCH module.

https://www.larix-elektro.com/PRODUCT_MACRO_4ONOFF.html