2n EasyGate - User Manual Manual de usuario descargar pdf (Pagina 34)

10. List of Abbreviations

· APN - Access Point Name – necessary for the GPRS service

· CLIP - Calling Line Identification Presentation

· CSD - Circuit Switched Data

· COM - PC serial port

· DTMF - Dual Tone Multifrequency - tone dialing

· EG - EasyGate

· FSK - Frequency Shift Keying

· FXO - an interface electrically identical with a standard telephone (opposite side =

FXS interface)

· FXS - a telephone interface allowing standard telephone connection (opposite

side = FXO interface)

· FW - Firmware - similar to SW, a term for the central microprocessor program

· GSM - Group Switched Mobile system - the present standard digital mobile telephone

network

· GPRS - General Packet Radio Service - high-speed data transmission for GSM

networks

· HW - Hardware - an electronic device, circuit, board, component, etc. in this context

· P(A)BX - Private (Automatic) Branch Exchange

· PC - Personal Computer (based on the IBM PC standard)

· PIN - Personal Identification Number - a SIM card securing password

· PUK - Personal Unblocking Key - a password used to unblock a blocked SIM card

after repeated wrong PIN entering

· RS-232C - a PC serial port standard

· SIM - Subscriber Identity Module - a chip-equipped module to be inserted in a

GSM device for identification

· SMS - Short Message Service, a term for the system and one unit (message)

· SW - Software

· TTL - Transistor-Transistor Logic - a standard digital technology defining voltage

for levels 0 and 1

· PSTN - Public Switched Telephone Network

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2n EasyGate - User Manual Manual de usuario Pagina 34