Multitech MT5634MU Guida Utente Scaricare il pdf (Pagina 22)

MultiModemUSB User Guide

AT Commands

AT commands are used to control the operation of your modem. They are so called because each

command must be preceded by the characters AT to get the ATtention of the modem.

AT commands can be issued only when the modem is in command mode or online command mode.

The modem is in command mode whenever it is not connected to another modem. The modem is in

data mode whenever it is connected to another modem and ready to exchange data. Online

command mode is a temporary state in which you can issue commands to the modem while

connected to another modem. To put the modem into online command mode from data mode, you

must issue an escape sequence (+++) followed immediately by the AT characters and the command,

e.g., +++ATH to hang up the modem. To return to data mode from online command mode, you must

issue the command ATO.

To send AT commands to the modem you must use a communications program, such as the

HyperTerminal applet in Windows 98 and 95, or the communications program included with your

modem. You can issue commands to the modem either directly, by typing them in the terminal

window of the communications program, or indirectly, by configuring the operating system or

communications program to send the commands automatically. Fortunately, communications

programs make daily operation of modems effortless by hiding the commands from the user. Most

users, therefore, need to use AT commands only when reconfiguring the modem, e.g., to turn

autoanswer on or off.

The format for entering an AT command is ATXn, where X is the command and n is the specific value

for the command, sometimes called the command parameter. The value is always a number. If the

value is zero, you can omit it from the command; thus, AT&W is equivalent to AT&W0. Most

commands have a default value, which is the value that is set at the factory. The default values are

shown in the “AT Command Summary,” which begins on the next page.

You must press ENTER to send the command to the modem. Any time the modem receives a

command, it sends a response known as a result code. The most common result codes are OK,

ERROR, and the CONNECT messages that the modem sends to the computer when it is connecting

to another modem. For a table of valid result codes, see “Result Codes” at the end of this chapter.

You can issue several commands in one line, in what is called a command string. The command

string begins with AT and ends when you press ENTER. Spaces to separate the commands are

optional; they are ignored by the command interpreter. The most familiar command string is the

initialization string, which is used to configure the modem when it is turned on or reset, or when your

communications software calls another modem.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 66 67

Commenti su questo manuale

Nessun commento

Panasonic CF-19RHRCHPG Scheda Tecnica (2 pagine)

Marchio: Panasonic | Categoria: Notebooks | Dimensione: 1.05 MB |

Indice

TOUGHBOOK CF-19

MOBILE BUSINESS EXCELLENCE

Più prodotti e manuali per Notebook Panasonic

Modelli	Tipo di Documento
CF-31ATNEXPG	Scheda Tecnica Panasonic Toughbook CF-31, 2 pagine
CF-C1BTCFZFF	Scheda Tecnica Panasonic Toughbook CF-C1, 2 pagine
CF-T8GWESZQG	Scheda Tecnica Panasonic Toughbook CF-T8 SU9400, 2 pagine
CF-F8EWDZZNG	Scheda Tecnica Panasonic Toughbook CF-F8, 2 pagine
CF-19ADNAXDE	Scheda Tecnica Panasonic Toughbook 19, 2 pagine
CF-52EKMBUAG	Scheda Tecnica Panasonic Toughbook CF-52, 2 pagine
CF-H1CDMAZH3	Scheda Tecnica Panasonic Toughbook CF-H1 Z540, 2 pagine
CF-19KHRCHPG	Scheda Tecnica Panasonic Toughbook CF-19 SU9300, 1 pagine
CF-19CHBAXBG	Scheda Tecnica Panasonic Toughbook CF-19, 1 pagine
CF-F8GWEZFQG	Scheda Tecnica Panasonic Toughbook CF-F8 SP9400, 2 pagine
CF-52CCABJBG	Scheda Tecnica Panasonic Toughbook CF-52, 2 pagine
CF-T5LWHSZBE	Scheda Tecnica Panasonic Toughbook Toughbook-T5, 2 pagine
CF-C1ATAAGFF	Scheda Tecnica Panasonic Toughbook C1, 2 pagine
CF-W8GWEYZSG	Scheda Tecnica Panasonic Toughbook CF-W8 SU9300, 2 pagine
CF-52GCMBVAG	Scheda Tecnica Panasonic Toughbook CF-52, 2 pagine
CF-Y7DWAZFSG	Scheda Tecnica Panasonic Toughbook CF-Y7, 2 pagine
CF-31MK5	Istruzioni per gli Interventi Panasonic Toughbook 31, 44 pagine
CF-W5LWSYZBE	Scheda Tecnica Panasonic Toughbook Toughbook-W5, 2 pagine
CF-54A0002BM	Scheda Tecnica Panasonic Toughbook 54, 2 pagine
CF-Y5LWVYZBE	Scheda Tecnica Panasonic Toughbook Toughbook-Y5, 2 pagine

Multitech MT5634MU Guida Utente Pagina 22

Commenti su questo manuale

Panasonic CF-19RHRCHPG manuali

Panasonic CF-19RHRCHPG Scheda Tecnica (2 pagine)

Indice

Più prodotti e manuali per Notebook Panasonic

Multitech MT5634MU Guida Utente Pagina 22

Commenti su questo manuale

Prodotti e manuali riguardandi Modem Multitech MT5634MU

Panasonic CF-19RHRCHPG manuali

Panasonic CF-19RHRCHPG Scheda Tecnica (2 pagine)

Indice

Più prodotti e manuali per Notebook Panasonic