Thermo Scientific V.22/212A User Manual page 25

Modem card for remote telemetry system

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ATE1 S0=3 <CR> or ATE1S0=3 <CR>

In the previous example, the first command line includes a space between the commands

(ATE1_S0=3), while the second command line does not (ATE1S0=3). The space between the E1

and S0=3 commands is not necessary, but makes it easier to evaluate the command line before

activating it, especially for command lines including more than three commands (spaces are not

counted as part of the 40 character maximum).

Descriptions of common AT commands are as follows:

The Repeat Command activates the last command string entered. The AT prefix and

<CR> is not required.

ATA

The Answer Command takes the modem off-hook and emits the answer tone (usually

in response to an incoming ring detect).

ATBx

If the value of "x" is set to 0, the modem is configured for the CCITT v.22 standard

operation. If the value of "x" is set to 1, the modem is configured for the Bell 212A

standard operation. Stored default is 1.

ATDs

The Dial Command takes the modem off-hook and initiates the dial string "s". The

dial string consists of the digits to dial, and dial string modifiers. The string

modifiers are designated as follows:

;

S=n

ATEx

The Echo On/Off Command. When "x" is set for 1, the modem echoes the characters

in the command mode. When "x" is set for 0, echo is disabled. Stored default is 0.

ATHn

The Hook Status Command. When "n" is set to 0, the modem goes on-hook (hang-

up). When "n" is set to 1, the modem goes off-hook.

Dial in Pulse Mode.

Dial in Tone Mode.

Pause during dialing (refer to S-Register 8).

Perform a flash-hook.

Wait for dial tone (refer to S-Register 11).

Wait for silence (wait for remote system to stop ringing and be silent for five

seconds before dialing continues).

Return to command mode for dialing. May be used to terminate the dial

string and return to the command mode while the call is being processed.

Dial the dialing string stored in one of four memory registers in the modem.

The "n" represents the memory register 0, 1, 2, or 3. (Refer to the AT&Zn=s

command.)

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