Cabletron Systems switches - Manual (Page 125)

Glossary-7
MAU to Network Radius
MAU Multistation Access Unit.
Mbps Megabits Per Second. Mbps indicates the number of groups of 1000 bits
of data that are being transmitted through an operating network. Mbps
can be roughly assessed as a measure of the operational “speed” of the
network.
Media Physical cabling or other method of interconnection through which
network signals are transmitted and received.
MIC Connector 1: Token Ring genderless connector. 2: FDDI fiber optic connector which
may be keyed to act as an M or S connector or A/B connector.
Micron (
µ
) A micrometer, one millionth of a meter.
MIM Media Interface Module. See also Module.
Mission-Critical Vital to the operation of a network, company, or agency.
Modular Chassis A device which provides power, cooling, interconnection, and
monitoring functions to a series of flexible and centralized modules for
the purposes of creating a network or networks.
Module A discrete device which is placed in a modular chassis to provide
functionality which may include, but is not limited to, bridging, routing,
connectivity, and repeating. Modules are easily installed and removed.
Also, any device designed to be placed in another device in order to
operate.
Multichannel A Cabletron Systems Ethernet design which provides three separate
network channels (of Ethernet or Token Ring technology) through the
backplane of a chassis, allowing for the creation of multiple networks in a
single chassis.
Multimode A type of fiber optics in which light travels in multiple modes, or
wavelengths. Signals in Multimode fiber optics are typically driven by
LED
s.
Nanometer One billionth of a meter.
NAUN Nearest Active Upstream Neighbor.
Network Radius The distance between the two stations on a network that are most remote
from one another and the cabling and repeater devices between them.
Network radius calculations are essential to ensuring the proper
operation of a Fast Ethernet network.