A-182-2 is a simple passive module that contains four changeover switches, which are used to connect or disconnect the sockets of the corresponding socket triplet. Each unit of the module can be used to switch between two signals or to interrupt/connect a signal. In the last case the third socket of the triplet is not used. The module is fully passive and both audio or control signals can be switched.
Specifications
Width: 4hp
Depth: 20mm
Power: Passive (+/- 0mA)
Manufacturer product page here.