Siemens SIMATIC IPC677E, Руководство по эксплуатации

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List of abbreviations
D.1 Abbreviations
SIMATIC IPC677E
Operating Instructions, 04/2019, A5E45117996-AA
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Abbreviation Term Meaning
RAID Redundant Array of Independent Disks Redundant hard disk array
RAM Random Access Memory
RI Ring Input Incoming call
ROM Read-Only Memory
RS 485 Reconciliation Sublayer 485 Bi-directional bus system designed for up to 32
nodes
SATA Serial Advanced Technology Attachment
SELV Safety Extra Low Voltage Safety extra low voltage
SMART Self Monitoring Analysis and Reporting
Technology
Hard disk error diagnostics program
SNMP Simple Network Management Protocol Network protocol
SSD Solid State Drive
SW Software
TxD Transmit Data Data transfer signal
UL Underwriters Laboratories Inc. US organization for tests and certifications ac-
cording to own or binational standards (with CSA
/ Canada) standards.
USB Universal Serial Bus
VCC 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
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.