2n Analogue UMTS gateway 2N SmartGate UMTS - Manual, Manual de usuario descargar pdf (Pagina 79)

List of Abbreviations

6.3

6.3 List of Abbreviations

n APN (Access Point Name)

Necessary for the GPRS service.

n CLIP (Calling Line Identification Presentation)

n CSD (Circuit Switched Data)

n COM

A PC Serial port.

n DTMF (Dual Tone MultiFrequency)

Tone dialling.

n FSK (Frequency Shift Keying)

A transmission protocol using variable signal frequencies for logic level

encoding.

n FXO

An interface electrically identical with a standard telephone

(opposite side = FXS interface).

n FXS

A telephone interface allowing a standard telephone connection

(opposite side = FXO interface).

n FW (Firmware)

Similar to SW, a term for the central microprocessor program.

n GSM (Group Switched Mobile system)

The present-day standard digital mobile telephone network.

n GPRS (General Packet Radio Service)

High-speed data transmission for UMTS/GSM networks.

n HW (Hardware)

An electronic device, circuit, board, component, etc. in this context.

n P(A)BX (Private (Automatic) Branch Exchange)

n PC (Personal Computer)

A personal computer based on the IBM PC standard.

n PIN (Personal Identification Number)

A SIM card securing password.

n PSTN

Public Switched Telephone Network.

n PUK (Personal Unblocking Key)

A password used for releasing a blocked SIM card after repeated wrong PIN

entering.

n RS-232C

A PC serial port standard.

n SIM (Subscriber Identity Module)

A chip-equipped module to be inserted in a UMTS/GSM device for

identification.

n SmG

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2n Analogue UMTS gateway 2N SmartGate UMTS - Manual, Manual de usuario Pagina 79

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