List of abbreviations
SIMATIC IPC277G
112
Operating Instructions, 08/2021, A5E50059956-AA
PXE
Preboot Execution Environment Software for running new PCs without hard disk
data via the network
RAID
Redundant Array of Independent
Disks
Redundant hard disk array
RAL
Restricted Access Location
RAM
Random Access Memory
RI
Ring Input
Incoming call
ROM
Read-Only Memory
RS 485 Reconciliation Sublayer 485
Bidirectional bus system
RTC
Real Time Clock
Real-time clock
RTS
Request to send
Request to send
RxD
Receive Data
Data transfer signal
SATA
Serial Advanced Technology
Attachment
SCU
Setup Configuration Utility
SELV
Safety Extra Low Voltage
Safety extra low voltage
SMART Self Monitoring Analysis and
Reporting Technology
Hard disk error diagnostics program
SRAM
Static Random Access Memory Static RAM
SSD
Solid State Drive
TFT
Thin-Film-Transistor
TxD
Transmit Data
Data transfer signal
UEFI
Unified Extensible Firmware
Interface
UL
Underwriters Laboratories Inc.
US organization for testing and certification
according to national or binational standards.
USB
Universal Serial Bus
VDE
Verband der Elektrotechnik,
Elektronik und
Informationstechnik e.V
(Association for Electrical,
Electronic and Information
Technologies)
VT
Virtualization Technology
Intel technology which provides a virtual, closed
environment.
VT-d
Virtualization Technology for
Directed I/O
Enables the direct assignment of a device (e.g.
network adapter) to a virtual device.
WD
Watchdog
Program monitoring with error detection and
alarming.
