LANcat
User Manual
Page E-8
M
MAC - Medium Access Control, the method of determining how
stations access the medium at any time.
MAC Address - A unique identification number assigned to each
station connected to a network. Sometimes called Station
Address.
Main Cross Connects - Provides connection between external
telecommunications lines, interbuilding backbone cable,
common communications equipment (PBX), and internal
backbone cable. Also called Main Distribution Frame.
Main Distribution Frame (MDF) - See Main Cross Connects.
Medium Attachment Unit (MAU) - Device used in Ethernet
networks to couple a station or hub to the transmission
medium.
Medium - The physical carrier of the data being transmitted, for
example twisted pair cable, coaxial cable, or fiber.
Modular Jack - EIA standard receptacle connector used for
connecting twisted pair cables at a wall plate, patch panels,
and station equipment. Sometimes called RJ45 jack.
Modular Plug - EIA standard connector used to terminate twisted-
pair patch cables and equipment cables. Sometimes called
RJ45 plug.
MSAU - Multi-Station Access Unit, a Token Ring wiring center for
network attachment.
MTBF - Mean Time Between Failures, the average operation time
to component failures.
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