Relay
Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal and refresh the signal coming in from one circuit by transmitting it on another circuit.
Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal and refresh the signal coming in from one circuit by transmitting it on another circuit.
