AT&T 2400 - Manual (Page 146)

Glossary
GL-6 Issue 2 December 1995
CO
See central office .
collocated
An INTUITY system installed in the same physical location as the host switch. See also local
installation .
collocated adjunct
Two or more adjuncts that are serving the same switch (i.e., each has voice port connections to
the switch) or that are serving different switches but can be networked through a direct RS-232
connection due to their proximity.
comcode
AT&T’s numbering system for telecommunications equipment. Each comcode is a nine digit
number that represents a specific piece of hardware, software, or documentation.
command
An instruction or request given by the user to the software to perform a particular function. An
entire command consists of the command name and options. Also, one- or two-key touch tones
that control a voice mailbox activity or function.
configuration
The particular combination of hardware and software components selected for a system, includ-
ing external connections, internal options, and peripheral equipment.
controller circuit card
A circuit card used on a computer system that controls its basic functionality and makes the sys-
tem operational. These cards are used to control magnetic peripherals, video monitors, and
basic system communications.
COS
See class of service .
CPU
See central processing unit .
cross connect
Distribution system equipment used to terminate and administer communication circuits.
cross connection
The connection of one wire to another, usually by anchoring each wire to a connecting block and
then placing a third wire between them so that an electrical connection is made.
CTS
See clear to send .