Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
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
extensions to the communications system or holds
the processor or power supply.
board assignment SPM procedure for assigning line/trunk
and
extension 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
specifies the protocol used between two or more
communications systems. BRI provides two 64-kbps
B-channels for voice and/or data and one 16-kbps
D-channel, which carries multiplexed signaling
information for the other 2 channels.
bus Multiconductor electrical path used to transfer
information over a common connection from any of
several 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
communications system.
byte Sequence of
bit s (usually eight) processed together.
Also called “octet.”