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CHAPTER 1
INTRODUCTION
This table identifies the function name of each line/trunk interface and switching controller.
SYMBOL
DESCRIPTION
ATI
Attendant Console Interface
BRT
Basic Rate Interface Trunk
BWT
Bothway Trunk
CCH
Common Channel Handler
CFT
Conference Trunk
COT
Central Office Trunk
DCH
D-Channel Handler
DID
Direct Inward Dialing
DIT
Direct-In Termination
DLC
Digital Line Circuit
DOD
Direct Outward Dialing
DTI
Digital Interface
ELC
Electronic Line Circuit
EMT
E & M Trunk
IOC
Input/Output Controller
IRT
Incoming Register Trunk
LC
Line Circuit
LDT
Loop Dialing Trunk
LTST
Line Test
MDF
Main Distribution Frame
MUX
Multiplexer
NCU
Night Connection Unit
ODT
Outband Dialing Trunk
ORT
Outgoing Register Trunk
PRT
Primary Rate Interface Trunk
SND
Sender
TLT
Tie Line Trunk
TSW
Time Division Switch
Содержание SV8500
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