Furthermore, switches cannot use chemical energy to repetitively and progressively drive a system away from equilibrium where a motor can.

An alarm button or switch, which passengers can use to signal that they have been trapped in the elevator.

Packet-based switches use one of three methods for routing traffic:

There are several possible speeds that a switch can use to communicate (10, 100, or 1000 megabits/second).

The switch uses a drop of mercury, which moves and completes an electrical circuit when the first tremors arrive.

The switches that route the information are not based on optical technology, but instead use electrical components.

Its optical switches use silicon chips tiled with micromirrors, each one small enough to fit on the head of a pin.

Using both types of switching makes a modern switch far smaller than either a space or time switch could be by itself.

The switch finally used must be the metal cased type not the glass envelope type.

Routers and switches will use metrics to determine the best paths to take when routing data.