SX-200 General Information Guide
232
Revision A
50003510
CCS
A unit used in traffic analysis to denote the traffic occupancy of a switched circuit in a PBX
exchange. One CCS represents 100 call-seconds.
CDE
See Customer Data Entry (CDE), page 234.
CIM
The CIM (Copper Interface Module) provides a copper communications link between the control
cabinet and a peripheral cabinet or a PRI card bay.
COV
See Control Over Voice, page 233.
CP
See Call Processing, page 232.
CLASS
See Custom Local Area Signaling Service, page 234.
Call Processing
The software package which handles all aspects of the setting up of connections within the
system.
Circuit Switch (CS)
The SX-200 EL/ML system circuit switch provides a matrix of bidirectional switch links. Each
circuit switch link accommodates 32 channels. Each channel can be used for a voice or data
transmission. Through the circuit switch, any device can be connected to any other device in
the system. It is located on the DX Module on the main control card.
The number of links in the matrix depends upon the system configuration.
Circular Hunting
Circular hunting starts at the extension after the last extension in the hunt group to which a call
was completed (the extension rung), and hunts overall extensions in the hunt group in the
sequence programmed. Hunting stops at the first idle extension found.
Class of Restriction (COR)
A class of restriction controls station and trunk access to trunk circuits. It performs functions
similar to toll control and is programmable on a station (or trunk) basis.
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