Multi-Tech Systems MT2834ZDX 사용자 설명서

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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:  
The attention code precedes all command lines except A/A:, and escape codes. 
 
Command:  
RETURN Key 
Values:  
n/a 
Description:  
Press the RETURN (ENTER) key to execute most commands. 
 
Command: 
A     Force Answer Mode 
Values:  
n/a 
Description: 
 Answer call before final ring. 
 
Command:  
A/     Repeat Last Command 
Values:  
n/a 
Description:  
Do not precede this command with AT. Do not press RETURN to execute. 
 
Command:  
A:     Continuous Redial 
Values:  
n/a 
Description:  
Redial last number until answered (10 redials in DOC modems). Do not precede this command with 
AT or press RETURN to execute.  
 
Command: 
&An    Answerback 
Values:  
n = 0 or 1 
Default:  
Description:  
&A0    Disables answerback. 
 
&A1    Enables answerback reply to an ID request. 
 
Command: 
$An   Auto-Reliable Buffering 
Values: 
 n = 0 or 1 
Default:  
Description:  
$A0 Discard 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:  
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. 
 
Command:  
&BSn    Maximum Reliable Block Size 
Values: 
n = 0 or 1 
Default:  
Description:  
&BS0 Maximum transmit block size of 64 characters. 
 
&BS1 Maximum transmit block size of 256 characters.