SIMATIC IPC677E
Operating Instructions, 04/2019, A5E45117996-AA
151
List of abbreviations
D
D.1
Abbreviations
Abbreviation
Term
Meaning
AC
Alternating current
Alternating current
AHCI
Advanced Host Controller Interface
Standardized controller interface for SATA devic-
es. This is supported in Microsoft Windows XP as
of SP1 and IAA driver.
APIC
Advanced Programmable Interrupt Control-
ler
Extended programmable interrupt controller
ATA
Advanced Technology Attachment
AWG
American Wire Gauge
US standard for the cable diameter
BIOS
Basic Input Output System
Basic Input Output System
CAN
Controller Area Network
CE
Communauté Européenne (CE symbol)
The product is in conformance with all applicable
EC directives
CLK
Clock pulse
Clock signal for controllers
CMOS
Complementary Metal Oxide Semiconduc-
tors
Complementary metal oxide semiconductors
COA
Certificate of Authenticity
Microsoft Windows Product Key
COM
Communications Port
Term for the serial interface
CP
Communication Processor
Communication computer
CPU
Central Processing Unit
CPU
CRT
Cathode Ray Tube
CSA
Canadian Standards Association
Canadian organization for tests and certifications
according to own or binational standards (with UL
/ USA) standards
DC
Direct Current
DC current
DCD
Data Carrier Detect
Data carrier signal detection
DMA
Direct Memory Access
Direct memory access
DPP
DisplayPort
New powerful digital monitor port
DQS
Deutsche Gesellschaft zur Zertifizierung
von Qualitätsmanagement mBH
DSR
Data Set Ready
Ready for operation
DTR
Data Terminal Ready
Data terminal is ready
