Instruction manual

MERLIN LEGEND Communications System Release 5.0
Installation
555-650-140
Issue 1
June 1997
Glossary
Page GL-7
board A module , for example, 100D or 408 MLX GS/LS,
that allows you to connect lines/trunks and exten-
sions to the communications system or holds the
processor or power supply.
board assignment
SPM procedure for assigning line/trunk and exten-
sion modules
to slots on the control unit .
board renumbering System programming procedure for renumbering
line/trunk and extension modules that have already
been assigned to specific
slots on the control unit .
BRI (Basic Rate Interface) Standard interface that speci-
fies the protocol used between two or more commu-
nications systems. BRI provides two 64-kbps
B-channel s for voice and/or data and one 16-kbps
D-channel , which carries multiplexed signaling infor-
mation for the other 2 channels.
bus Multiconductor electrical path used to transfer infor-
mation over a common connection from any of sev-
eral sources to any of several destinations.
button Key on the face of a telephone that is used to access
a line, activate a feature, or enter a code on a com-
munications system.
byte Sequence of
bit s (usually eight) processed together.
Also called “octet.”