Optical Transceiver is typically used to create high bandwidth links between network switches. GBIC, SFP, XENPAK, X2 and XFP are all form factors of Optical Transceiver providing up to 10 Gbps data throughput. With Optical Transceiver you can also create data transmission links capable of long range transmission.
Optical Transceivers include both a transmitter and a receiver in the same component. These are arranged in parallel so that they can operate independently of each other. Both the receiver and the transmitter have their own circuitry so that they can handle transmissions in both directions.