Multi-Tech Systems MT2834ZDX 用户手册
Chapter 3 – AT Commands, S-Registers, and Results Codes
Multi-Tech Systems, Inc. MT2834ZDX User's Guide
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Chapter 3 – AT Commands, S-Registers
and Result Codes
AT Commands
This section summarizes the AT commands for this modem.
Command:
AT Attention Code
Values: n/a
Description:
Description:
The attention code precedes all command lines except A/, A:, and escape codes.
Command:
RETURN Key
Values: n/a
Description:
Description:
Press the RETURN (ENTER) key to execute most commands.
Command:
A Force Answer Mode
Values: n/a
Description:
Description:
Answer call before final ring.
Command:
A/ Repeat Last Command
Values: n/a
Description:
Description:
Do not precede this command with AT. Do not press RETURN to execute.
Command:
A: Continuous Redial
Values: n/a
Description:
Description:
Redial last number until answered (10 redials in DOC modems). Do not precede this command with
AT or press RETURN to execute.
AT or press RETURN to execute.
Command:
&An Answerback
Values:
n = 0 or 1
Default: 0
Description:
Description:
&A0 Disables answerback.
&A1 Enables answerback reply to an ID request.
&A1 Enables answerback reply to an ID request.
Command:
$An Auto-Reliable Buffering
Values:
n = 0 or 1
Default: 0
Description:
Description:
$A0 Discard data received during establishment of a reliable connection.
$A1 Buffer data received during establishment of a reliable connection.
$A1 Buffer data received during establishment of a reliable connection.
Command:
#An Auto Speed Detection in Answer Mode
Values:
n = 0–3
Default: 0
Description:
Description:
#A0 Start at maximum speed and fall back to a lower speed (26400, 24000, 21600, 19200, 16800,
14400, 12000, 9600, 7200, 4800, 2400, 1200, or 300 bps) as line conditions warrant.
#A1 Maximum speed only.
#A2 Start at maximum speed and fall back decrementally to 4800 bps only.
#A3 Start at 2400 bps and fall back to 1200 to 300 bps only.
14400, 12000, 9600, 7200, 4800, 2400, 1200, or 300 bps) as line conditions warrant.
#A1 Maximum speed only.
#A2 Start at maximum speed and fall back decrementally to 4800 bps only.
#A3 Start at 2400 bps and fall back to 1200 to 300 bps only.
Command:
&BSn Maximum Reliable Block Size
Values:
n = 0 or 1
Default: 1
Description:
Description:
&BS0 Maximum transmit block size of 64 characters.
&BS1 Maximum transmit block size of 256 characters.
&BS1 Maximum transmit block size of 256 characters.