List of abbreviations
SIMATIC IPC547D
Operating Instructions, 06/2011, A5E03473780-01
121
Abbreviatio
n
Term Meaning
SATA Serial Advanced Technology Attachment
SCSI Small Computer System Interface
SDRAM Synchronous DRAM
SELV Safety Extra Low Voltage Safety extra low voltage
SJT Service [Grade] Junior (Hard Service)
Thermoplastic
PVC armored cable
SLC Second Level Cache
SMART Self Monitoring Analysis and Reporting
Technology
Hard disk error diagnostics program
SMS Short Message Service Short message via telecommunication
network
SNMP Simple Network Management Protocol Network protocol
SO-DIMM Small Outline Dual Inline Memory Module
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 ITU-T standardized recommendation for
data transfer via serial ports
VCC Positive supply voltage of integrated
circuits
VDE Verein deutscher Elektrotechniker (Union of
German Electrical Engineers)
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