Philip Rees 5s
The useful 5S is simply a passive rotary selector switch in a box. Like all our MIDI Selectors, it requires no external power, so you don't have to bother with batteries or mains leads and supplies.
There are five DIN sockets for the 'rim' connection, and one for the 'hub' connections. The rotary selector switch has six positions - which can link the 'hub' to any one of the 'rim' connectors, or the special off position.
The 5S can be used as a source selector - that is with five inputs and one output. For example, you may use it on the input of your sequencer or music computer, to choose which of your keyboards, drum machines or other controllers is linked through - without the hassle of plugging and unplugging the cables.
Less commonly, the bidirectional 5S can be used as a destination selector. You could select one of up to five different slave devices from a simple rotary switch next to your keyboard.