Editing Transceiver (section)

==Usage==
===Telephony===
[[File:PXE.jpg|thumb|A decapped integrated circuit of a transceiver used in handheld communication devices and radio equipment as a modem extension. On-die passfilters are visible.]]
<!-- This section is linked from [[Headphones]]. -->
In a wired [[telephone]], the handset contains the transmitter (for speaking) and receiver (for listening).  Despite being able to transmit and receive data, the whole unit is colloquially referred to as a "receiver".  On a [[mobile telephone]] or other [[radiotelephone]], the entire unit is a transceiver for both audio and radio.

A [[cordless telephone]] uses an audio and radio transceiver for the handset, and a radio transceiver for the [[base station]]. If a [[speakerphone]] is included in a wired telephone base or in a cordless base station, the base also becomes an audio transceiver.

A [[modem]] is similar to a transceiver in that it sends and receives a signal, but a modem uses modulation and demodulation. It modulates the signal being transmitted and demodulates the signal being received.

===Ethernet===
[[File:Ethernet-media-converter-transceiver-0a.jpg|thumb|[[100BASE-TX]] connected to a [[100BASE-FX]] transceiver]]
Transceivers are called [[Transmission medium|Medium]] Attachment Units ([[Medium Attachment Unit|MAU]]s) in [[IEEE 802.3]] documents and were widely used in [[10BASE2]] and [[10BASE5]] [[Ethernet]] networks. [[Fiber-optic]] [[gigabit Ethernet|gigabit]], [[10 Gigabit Ethernet]], [[40 Gigabit Ethernet]], and [[100 Gigabit Ethernet]] utilize [[GBIC]], [[SFP transceiver|SFP]], [[SFP+]], [[QSFP]], [[XFP]], [[XAUI]], [[CXP_(connector)|CXP]], and [[C form-factor pluggable|CFP]] transceiver systems.