Black Box SCAN-LAN VI, Manual

Page: 164 / 172

162
SCAN-LAN VI
DECnet — A proprietary Ethernet LAN developed by Digital Equipment
Corporation.
Delay — A measure of the time electrical signals take to propagate from
one end of the cable to the other end.
Delay Skew — The difference in propagation delays from one cable pair
to another.
Differential Manchester Encoding — A digital signaling technique with
a transition in the middle of the bit to provide clocking.
Drop Cable — In 10BASE5 networks, a cable connecting a workstation
network interface card (NIC) with the transmission medium. Sometimes
called Attachment Unit Interface (AUI) cable.
EIA — Electronic Industry Association.
EMI (Electromagnetic Interference) — Leakage of electromagnetic energy
outside of a transmission medium.
Ethernet — A high-speed local area network using the Carrier Sense
Multiple Access with Collision Detection (CSMA/CD) media-access
method.
Far End Crosstalk (FEXT) — Crosstalk that is measured at the opposite
end of a cable from where the signal is injected.
Fault — Any accidental condition that causes a component to fail.
FCC— Federal Communications Commission.
FDDI (Fiber Distributed Data Interface) — A network standard (ANSI
X3T9.5) that defines a 100-Mbps token-ring network using optical fiber
for data transmission over distances of several kilometers.
Fiber — A transmission medium designed to transmit data in the form
of light pulses.
File Server — A high-capacity file-storage device that computers on
a network can access to retrieve files.
Foil Twisted Pair (FTP) — See Screened Twisted Pair .
Frame — A unit of transmission in some LANs such as Token Ring.