Siemens SIMATIC Rack PC 840 V2 Operating Instructions Manual page 160

Abbreviations
Abbreviation
PI
PG
PIC
POST
PXE
RAID
RAM
RI
ROM
RS 485
RTC
RTS
RxD
SATA
SCSI
SDRAM
SELV
SMART
SMS
SNMP
SO-DIMM
SOM
SPP
SVGA
SVP
SW
TCO
TFT
TTY
TxD
TWD
UL
UMA
URL
USB
UXGA
19-4
Term
Protective Earth
Programming device
Programmable Interrupt Controller
Power On Self Test
Preboot Execution Environment
Redundant Array of Independent Disks
Random Access Memory
Ring Input
Read-Only Memory
Reconciliation Sublayer 485
Real Time Clock
Reliable Transfer Service
Receive Data
Serial ATA
Small Computer System Interface
Synchronous DRAM
Safety Extra Low Voltage
Self Monitoring Analysis and Reporting
Technology
Short Message Service
Simple Network Management Protocol
Small Outline Dual Inline Memory Module
SafeCard on Motherboard (SOM)
Standard Parallel Port
Super Video Graphics Array
Serial number of the device
Software
Total Cost of Ownership
Thin-Film-Transistor
Tele Type
Transmit Data
Watchdog Time
Underwriters Laboratories Inc.
Unified Memory Architecture
Uniform Resource Locator
Universal Serial Bus
Ultra Extended Graphics Array
Meaning
Protective conductor
Programmable interrupt controller
Software for running new PCs without hard disk
data via the network
Redundant hard disk array
Incoming call
Bi-directional bus system designed for up to
32 nodes
Real-time clock
Request to send
Data transfer signal
Safety extra low voltage
Hard disk error diagnostics program
Short message via telecommunication network
Network protocol
Synonym for parallel port
Enhanced VGA standard with at least 256 colors
Type of LCD flat-screen
Asynchronous data transfer
Data transfer signal
Watchdog monitoring time
US organisation for tests and certifications
according to own or binational standards
(with CSA / Canada) standards
Designation of the full address of an Internet
page
Graphic standard, maximum resolution
1.600 x 1.200 pixels
Operating Instructions, Edition 05/2006, A5E00248055-04
SIMATIC Rack PC 840 V2