AT&T MERLIN LEGEND Release 2.0 System Programming And Maintenance Manual page 87

Glossary
baud In telecommunications applications, a unit of transmission speed
equal to the number of signal events per second.
Behind Switch
A mode of operation in which the communications system control unit
is connected to (is "behind") another communications system.
binary code
An electrical representation of quantities or symbols expressed in the
base-2 number system.
bit (binary digit)
One unit of information in binary notation, having two possible values:
zero or one.
bit rate
The speed at which bits are transmitted, usually expressed in bits per
second. Also called data rate.
bits per second (bps)
The number of binary units of information that are transmitted or
received per second. See also baud and bit rate.
blocking
A condition in which end-to-end connections cannot be made on calls
because of a full load on all possible services and facilities.
board
A module, for example, 100D or 408 MLX GS/LS, that allows you to
connect trunks and stations to the communications system.
board assignment
An SPM procedure for assigning trunk and station modules to slots on
the control unit.
board renumbering
A system programming procedure for renumbering boards that have
already been assigned to specific slots on the control unit.
button
A key on the face of a telephone or console that is used to access a
line, activate a feature, or enter a code on a communications system.
GL-2
Glossary