Abbreviations
SIMATIC IPC1047
Operating Instructions, 09/2018, A5E45118479-AA
123
Abbreviation Term
Meaning
SO-DIMM
Small Outline Dual Inline Memory Module
SOL
Serial over LAN
Text-based remote control
SOM
SafeCard on Motherboard (SOM)
SPP
Standard Parallel Port
Synonym for parallel port
SRAM
Static Random Access Memory
Static RAM
SSD
Solid State Drive
SVGA
Super Video Graphics Array
Enhanced VGA standard with at least 256 colors
SVP
Serial number of the device
SW
Software
TCO
Total Cost of Ownership
TFT
Thin-Film-Transistor
Type of LCD flat-screen
TTY
Tele Type
Asynchronous data transfer
TxD
Transmit Data
Data transfer signal
TXT
Trusted Execution Technology
Hardware implementation
TWD
Watchdog Time
Watchdog monitoring time
UEFI
Unified Extensible Firmware Interface
UL
Underwriters Laboratories Inc.
US organization for tests and certifications according to own
or binational standards (with CSA / Canada) standards.
UMA
Unified Memory Architecture
Video memory
URL
Uniform Resource Locator
Designation of the full address of an Internet page
USB
Universal Serial Bus
UXGA
Ultra Extended Graphics Array
Graphic standard, maximum resolution 1600x1200 pixels.
V.24
2 × 12-pin connection
ITU-T standardized recommendation for data transfer via
serial ports.
VCC
Voltage at the Common Collector
Positive supply voltage of integrated circuits
VDE
Verein deutscher Elektrotechniker (Union of
German Electrical Engineers)
VGA
Video Graphics Array
Video adapter which meets industrial standard
VRM
Voltage Regulator Module
VT
Virtualization Technology
Intel technology with which a virtually closed environment
can be made available.
VT-D
Virtualization Technology for Directed I/O
Enables the direct assignment of a device (e.g. network
adapter) to a virtual device.
WAN
Wide Area Network
WAV
Wave Length Encoding
Loss-free file format for audio data.
WD
Watchdog
Program monitoring with error detection and alarming.
WLAN
Wireless LAN
LWireless local area network
WOL
Wake on Local Area Network
WWW
World Wide Web
XD
Extended Disable Capability
Hardware implementation
XGA
Extended Graphics Array
Graphic standard, maximum resolution 1024x768 pixels.
ZMM
Zero Maintenance Cache Protection Module Maintenance-free cache unit for saving cache contents