Siemens PCIL43 Sata, Scsi, Sdram, Selv, Smart, Sms, Snmp, So-Dimm, Som, Spp, Svga, Svp, Tco, Tft

Abbreviations

C.1 Abbreviations

Abbreviation	Term	Definition
RxD	Receive Data	Data transfer signal
SATA	Serial ATA	An interface for hard disk drives and optical
		drives with serial data transfer of up to 1.5 Mbps
SCSI	Small Computer System Interface	Interface for connecting SCSI devices (e.g. hard
		disk or CD–ROM drives)
SDRAM	Synchronous DRAM	A design form of dynamic semiconductor chip
		(DRAM) that can be operated at a higher clock-
		pulse rate as conventional DRAM circuits.
		This is enabled by means of block access, where
		the DRAM specifies the relevant next memory
		address.
SELV	Safety Extra Low Voltage	Safety extra-low voltage
SMART	Self Monitoring Analysis and Reporting	Hard disk error diagnostics program
	Technology
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)	SafeCard On Motherboard consists of monitoring
		blocks on the motherboard, a driver and the SOM
		program. It provides functions for monitoring
		various temperatures and program execution
		(Watchdog).
SPP	Standard Parallel Port	Synonym for parallel port
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
TWD	Watchdog Time	Watchdog monitoring time
UL	Underwriters Laboratories Inc.
UMA	Unified Memory Architecture
URL	Uniform Resource Locator	Designation of the full address of an Internet
		page
USB	Universal Serial Bus	A serial bus with a data transfer rate of max. 12
		megabits per second (Mbps) for USB 1.1 or 480
		Mbps for USB 2.0 for connecting peripherals to a
		computer. USB can connect up to 127
		peripherals, such as external CD-ROM drives,
		printers, modems, mice, and keyboards, to the
		system through a single, general-purpose port.
UXGA	Ultra Extended Graphics Array	Graphic standard, maximum resolution 1600 x
		1200 pixels
V.24		ITU-T standardized recommendation for data
		transfer via serial ports
VDE	Verein deutscher Elektrotechniker

C-6	SIMATIC Rack PC IL 43
	Operating Instructions, Edition 09/2005, A5E00432875-01