AT&T AUDIX Networking 585-300-903 User Manual
Page 236

AB-2
Abbreviations
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CMS
Call Management System
CO
Central Office
CPU
Central Processing Unit
CSM
Centralized System Management
CSSO
Customer Service Support Organization
DBP
Data Base Processor (Subsystem)
DBP-CPU
Data Base Processor Central Processing Unit (TN509, TN549, or TN472C)
DBP Bus
Data Base Processor Bus (also VME Bus)
DBPI
Data Base Processor Interface (UN160B)
DBP-RAM
Data Base Processor Random Access Memory (TN508 or TN532)
DC
Direct Current
DCE
Data Communications Equipment
DCIU
Data Communications Interface Unit
DCP
Digital Communications Protocol
DCS
Distributed Communications System
DFC
Dedicated Function Computer (also DBP-CPU)
DID
Direct Inward Dialing
DIM
Disk Interface Module (UN161B on AUDIX-L)
DLC
Digital Line Circuit (TN754)
DMI
Digital Multiplexed Interface
DOSS
Delivery Operations Support System
DRAM
Dynamic Random Access Memory
DS1
Digital Service 1
DSI
Digital Service Interface
DSL
Digital Subscriber Line
DSO
Data Service Organization
DSU
Data Service Unit
DTE
Data Terminal Equipment
EDC
Electronic Document Communications
EDI
Engineering Drawing Information
EIA
Electronic Industries Association
EMC
Electro-Magnetic Compatibility
EMI
Electro-Magnetic Interference