media attachment unit (MAU)

Contributor(s): Carsten N?rregaard Hansen

MAU is also sometimes used as the abbreviation for the token ring network multistation access unit (MSAU).

In an Ethernet local area network (LAN), a media attachment unit (MAU - rhymes with COW) is a device that interconnects the attachment unit interface port on an attached host computer to the Ethernet network medium (such as unshielded twisted pair or coaxial cable). The MAU provides the services that correspond to the physical layer of the Open Systems Interconnection (OSI) reference model. It provides an electrical connection and a transceiver that maps the digital bits between the computer and the network and detects collisions and retries transmissions. A MAU can be built into the computer workstation or other device or it can be a separate device.

Content Continues Below
This was last updated in September 2005

Continue Reading About media attachment unit (MAU)

Dig Deeper on Campus area network

Join the conversation


Send me notifications when other members comment.

Please create a username to comment.

It's not media attachment unit. It's medium attachment unit.
...and here is proof that it's medium (not media) attachment unit:
(URL immediately downloads PDF, 2 pages)