AT&T 585-300-903 manual DBP Bus, AB-2Abbreviations

AB-2Abbreviations

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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