Lucent Technologies MERLIN LEGEND Release 6.1 Maintenance And Troubleshooting Manual page 461

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting 555-661-140
baud rate
B-channel
Basic Rate
Interface
Bearer-channel
Behind Switch
mode
binary code
bipolar 8 zero
substitution
bipolar signal
bipolar violation
BIS
bit
bit rate
Strictly speaking, a measurement of transmission speed
equal to the number of signal level changes per second.
In practice, often used synonymously with bit rate and
bps .
(Bearer-channel) 64- or 56-kbps channel that carries a
variety of digital information streams, such as voice at
64 kbps, data at up to 64 kbps, wideband voice encoded
at 64 kbps, and voice at less than 64 kbps, alone or
combined .
See BRI .
See B-channel .
One of three modes of system operation, in which the
control unit is connected to (behind) another telephone
switching system, such as Centrex or DEFINITY, which
provides features and services to telephone users. See
also Hybrid/PBX mode and Key mode .
Electrical representation of quantities or symbols
expressed in the base-2 number system, which includes
zeros and ones.
See B8ZS.
Digital signal in which pulses (ones) alternate between
positive and negative. See also AMI , B8ZS , and bipolar
violation .
Condition occurring when two positive or two negative
pulses are received in succession. See also AMI and
B8ZS .
(Built-In Speakerphone) Part of the model name of some
analog multiline telephones.
(binary digit) One unit of information in binary notation; it
can have one of two values, zero or one.
Speed at which bits are transmitted, usually expressed in
bps . Also called "data rate."
Issue 1
August 1998
Page GL-5