Instruction manual

MERLIN LEGEND Communications System Release 5.0
Installation
555-650-140
Issue 1
June 1997
Glossary
Page GL-10
CO (central office) Location of telephone switching
equipment that provides local telephone service and
access to toll facilities for long-distance calling.
coaxial cable Cable consisting of one conductor, usually a small
copper tube or wire within and insulated from
another conductor of larger diameter, usually copper
tubing or copper braid.
codec (coder-decoder) Device used to convert analog
signals, such as speech, music, or television, to digi-
tal form for transmission over a digital medium and
back to the original analog form.
common channel
signaling
See CCS
.
communications
system
Software-controlled processor complex that inter-
prets dialing pulses, tones, and/or keyboard charac-
ters and makes the proper interconnections both
inside and outside. Consists of a computer, software,
a storage device, and
carriers with special hardware
to perform the actual connections. Provides voice
and/or data communications services, including
access to public and private networks, for tele-
phones and other equipment. Also referred to in this
guide as “system,” short for MERLIN LEGEND Com-
munications System.
control unit
Processor module , power supply modules , line/trunk
and extension modules
, carriers , and housing of the
system.
console Refers to telephone and adjuncts (if any) at an oper-
ator or system programmer extension.
CONVERSANT Voice response application that automatically
answers and routes calls and executes telephone
transactions.