SIMATIC Rack PC 840 V2
Operating Instructions, Edition 05/2006, A5E00248055-04
19-1
Abbreviations
19
Abbreviation
Term
Meaning
AC
Alternating current
Alternating current
ACPI
Advanced Configuration and Power
Interface
PLC
Automation device
AGP
Accelerated Graphics Port
High speed bus system
APIC
Advanced Programmable Interrupt
Controller
Extended programmable interrupt controler
APM
Advanced Power Management
Tool for monitoring and reducing power
consumption of the PC
PLC
Automation system
AT
Advanced Technology
ATA
Advanced Technology Attachment
ATX
AT-Bus-Extended
AWG
American Wire Gauge
US standard for the cable diameter
BIOS
Basic Input Output System
Basic Input Output System
CAN
Controller Area Network
CD-ROM
Compact Disc – Read Only Memory
Removable storage medium for large data
volumes
CD-RW
Compact Disc – Rewritable
Rewritable CD
CE
Communauté Européenne (CE symbol)
The product is in conformance with all applicable
EC directives
CF
Compact Flash
CGA
Color Graphics Adapter
Standard monitor interface
CLK
Clock pulse
Clock signal for controllers
CMOS
Complementary Metal Oxide
Semiconductors
Complementary metal oxide semiconductors
COA
Certificate of authentication
Microsoft Windows Product Key
CoL
Certificate of License
License authorization
COM
Communications Port
Term for the serial interface
CP
Communication Processor
Communication computer
CPU
Central Processing Unit
CPU
CSA
Canadian Standards Association
Canadian organisation for tests and certifications
according to own or binational standards (with UL
/ USA) standards
CTS
Clear To Send
Clear to send