RELAY

Relays are amazingly simple devices. I am using the two relays in my project to process the network devices.

As a knowledge, the relay is a simple electromechanical switch made up of an electromagnet and set of contacts. Relays are found hidden in all sorts of devices. In fact, some of the first computers ever built used to implement Boolean gates.

Here is the relay and relay schematic diagram that used in my project.