Filter
Top Products
C-2
C
H
A
P
T
E
R
C:
G
L
O
S
S
A
R
Y
B Channel
A digital data communications channel
running at 64 Kbps. The basic rate ISDN 2 service
carries two B channels plus one control D channel.
Refer to
ISDN
and
D Channel
.
Backbone
A network cabling segment that
interconnects a group of network segments or
systems.
Bandwidth
The capacity of data communications
system or channel.
Baseband
A communication technique in which
network cable is used to carry a single stream of data
at a time.
Baud
A unit of signalling speed equal to the
number of signalling events in one second.
Bit
Either of the digits 0 or 1 when used in the binary
numeration system. Eight bits equals a single byte.
Bridge
A device that links two or more local or
remote area networks together. A bridge may be
used to extend the network or to connect two
different network transport technologies together.
Broadband
A communications technique in which
network cabling is used to carry multiple streams of
data simultaneously.
Broadcast Storm
A rare event in which broadcast
frames are propagated endlessly through the
network because poorly configured bridge and
router connections.
Bus
A single segment through which devices are
connected. An Ethernet LAN is based on a bus
network which connects all communicating
workstations with a common cable.
Byte
A string that consists of eight data bits treated
as a unit.
Call Guillotine
A feature that disconnects a call
after a certain period of time irrespective of whether
data is being passed across the link or not.
CCITT
Comité Consultatif International
Téléphonique et Télégraphique, now renamed ITU,
International Telecommunication Union.
Rc.bk : GLOSSARY.FRM Page 2 Thursday, July 10, 1997 9:53 AM