A switch for changing vector connections.
Like the spike button the vector switch can be operated while a model is running to switch between its different inputs. The vector it provides on the output port is one of those available on its input ports according to the position of the switch.
It also has a spike input port at the top which can be used to operate it programatically: sending a spike with index 0 switches it to the first vector; index 1 switches it to the second etc.