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Cooper Bussmann 1050E-T Unmanaged Ethernet Switch User Manual
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Rev 1.1.5
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a - GLOSSarY
Term
Definition
100Base-TX
100Base-TX is a Fast Ethernet cabling standard. 100Base-TX devices can transfer data at a
rate of up to 100 Mbps, and use two wire-pairs of wires inside a category 5 or above cable.
10Base-T
10Base-T is an Ethernet cabling standard. 10Base-T devices can transfer data at a rate of up
to 10 Mbps, and use twisted pairs of wires in their Ethernet cabling.
AWG
American wire gauge (AWG), also known as the Brown & Sharpe wire gauge, is a standard-
ized wire gauge system used predominantly in the United States and Canada for the
diameters of round, solid, nonferrous, electrically conducting wire.
CSMA/CD
Carrier Sense Multiple Access/Collision Detection is the access method used on an Ethernet
network. A network device transmits data after detecting that a channel is available. However,
if two devices transmit data simultaneously, the sending devices detect a collision and
retransmit after a random time delay.
DIN rail
A DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and
industrial control equipment inside equipment racks.
ESD
Electrostatic discharge (ESD) is discharge of static electricity from a outside source, such as
human hands, into an integrated circuit, often resulting in damage to the circuit.
FCC
The Federal Communications Commission (FCC) is the US agency that regulates interstate
and international wire, radio, and other broadcast trasmissions, including telephone,
telegraph, and telecommunications.
Full Duplex
A full-duplex (or double-duplex) system allows communication in both directions and, unlike
half-duplex, allows this to happen simultaneously. Land-line telephone networks are exam-
ples of full-duplex, since they allow both callers to speak and be heard at the same time.
IEEE
Institute of Electrical and Electronics Engineers, New York, www.ieee.org. A membership
organization that includes engineers, scientists and students in electronics and allied fields.
It has more than 300,000 members and is involved with setting standards for computers and
communications.
MDI/MDIX
Medium Dependent Interface (MDI) describes the interface (both physical and electrical) in
a computer network from a physical layer implementation to the physical medium used to
carry the transmission. Ethernet over twisted pair also defines a medium dependent interface
crossover (MDIX) interface. Auto-MDIX ports on newer network interfaces detect if the con-
nection would require a crossover, and automatically chooses the MDI or MDIX configuration
to properly match the other end of the link.
RJ-45
Standard connectors used in Ethernet networks. RJ-45 connectors are similar to standard
RJ-11 telephone connectors, except that RJ-45 connectors can have up to eight wires,
whereas telephone connectors have four wires.
Switch
A type of hub that efficiently controls the way multiple devices use the same network so that
each can operate at optimal performance. A switch acts as a networks traffic cop. Rather
than transmitting all the packets it receives to all ports as a hub does, a switch transmits
packets to only the receiving port.
UL
Underwriter Laboratories (UL) is one of several companies approved to perform safety testing
by the US federal agency Occupational Safety and Health Administration (OSHA).
