Siemens LOGO! Series Manual page 522

Abbreviations
PELV
RJ45
RTS
RxD
SD Card
SELV
SP
PLC
STN
Sub-D
TAB
TCP/IP
TFT
TTY
TxD
UL
USB
UPS
WINS
150
Protective Extra Low Voltage
Registered Jack Type 45
Request to send
Receive Data
Security Digital Card
Safety Extra Low Voltage
Service Pack
Programmable Logic Controller
Super Twisted Nematic
Subminiature D (plug)
Tabulator
Transmission Control Protocol/Internet Protocol
Thin Film Transistor
Teletype
Transmit Data
Underwriter's Laboratory
Universal Serial Bus
Uninterruptible power supply
Windows Internet Naming Service
Operating Instructions, 04/2012, A5E02421799-03
Basic Panels