Transceiver
Transceiver modules are used in Gigabit Ethernet. These are small modules that are responsible for sending and receiving signals in network adapters. Transceiver modules are used in switches and routers. Different cables are used for different distances. In addition, the transmission medium determines whether light, electrical pulses or electromagnetic waves are used. Transceiver modules are small in order to have as many ports as possible available in a small space. They are not only responsible for transmitting and receiving, but also for collision detection autonegation, so that a high data rate is achieved.