Page 10 CWT Compact Touch Installation and Maintenanace Manual Issue 13
GSM The Global System for Mobile communications is the most popular
standard for mobile phones in the world. It includes packet data
capabilities by means of GPRS (see above).
LAN Local Area Network
Magstripe Short for Magnetic stripe
PCB Printed Circuit Board – A thin board with electrical wires "printed" onto the
board, connecting the central processor to other components on the board.
Some examples of PCBs include motherboards, RAM chips, and network
interface cards.
RFID Radio Frequency Identification – An automatic identification method,
relying on storing and remotely retrieving data using devices called RFID
tags or transponders. An RFID tag is an object that can be applied to or
incorporated into a product, animal, or person for the purpose of
identification using radio waves. Most RFID tags contain at least two parts.
One is an integrated circuit for storing and processing information,
modulating and demodulating an RF signal. The second is an antenna for
receiving and transmitting the signal.
Residual-
current
device
(RCD)
Also known as a ground fault circuit interrupter (GFCI), ground fault
interrupter (GFI) or an appliance leakage current interrupter (ALCI). In
Australia, they are sometimes known as "safety switches". The device
disconnects a circuit whenever it detects that the electric current is not
balanced between the live and the neutral conductors. Such an imbalance
is sometimes caused by current leakage through the body of a person who
is grounded and accidentally touching the energized part of the circuit.
TFT TFT-LCD (Thin Film Transistor-
Liquid Crystal Display) is a variant of Liquid
Crystal Display (LCD) which uses Thin-Film Transistor (TFT) technology to
improve image quality. TFT LCD is one type of active matrix
is usually synonymous with LCD.
Wi-Fi Short for Wireless Fidelity, a wireless technology brand owned by the Wi-
Alliance intended to improve the interoperability of wireless local area
network products based on the IEEE 802.11 standards.
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