
3-4 Acronym and Abbreviation List
TR4.0:PROVOX Revision A — April 1997
CPU
Acronym: Central Processing Unit.
CRC
Acronym: Cyclic Redundancy Check
CRI
Acronym: Control Room Instrumentation
CRT
Acronym: Cathode Ray Tube.
CSA
Acronym: Canadian Standards
Association
CSV
Acronym: Comma Separated Value
CTD
Acronym: Console Trend Display
CU MPU
Acronym: Control Unit Microprocessor
Unit
CWEN
Acronym: Cancel Wait Enable
D
D
Abbreviation: Derivative Control Action
(Rate)
D/A or DAC
Acronym: Digital to Analog, or Digital to
Analog Converter
DAI
Acronym: Derived Analog Input
dB
Acronym: Decibel
DBI
Acronym: Database Index
DBMS
Acronym: database management system
dBmV
Acronym: Decibel millivolt
DBND
Abbreviation: Deadband
dc
Acronym: direct current
DC
1. Acronym: Data Concentrator
2. Acronym: Direct Current
DCD
Acronym: Discrete Control Device
DCE
Acronym: Data Communications
Equipment
DCL
Acronym: Digital Command Language
DCP
Acronym: Direct Control Point
DCPC
Acronym: Dual Channel Port Controller
DCS
Acronym: Distributed Control System
DCU
Acronym: Data Concentrator Unit (same
as data concentrator)
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