Multi-Tech Systems MT2834ZDX 사용자 설명서
Chapter 3 – AT Commands, S-Registers, and Results Codes
Multi-Tech Systems, Inc. MT2834ZDX User's Guide
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Command:
$En V.42 Error Correction at 300 bps
Values:
n = 0 or 1
Default:
0
Description:
$E0 V.42 error correction at 300 bps disabled.
$E1 V.42 error correction at 300 bps enabled.
Command:
$EBn Asynchronous Word Length
Values:
n = 0 or 1
Default:
0
Description:
$EB0 10-bit mode enabled.
$EB1 11-bit mode enabled.
Command:
%En Escape Sequence Options
Values:
n = 0–5
Defaults:
1 and 4
Description:
%E0 Modem won’t escape.
%E1
+++AT<CR> method.
%E2
<BREAK>AT<CR> method.
%E3
Both
+++AT<CR> and <BREAK>AT<CR> methods.
%E4 No OK response to +++AT<CR>.
%E5 OK response to +++AT<CR>.
Command:
&Fn Load Default Configurations
Values:
n = 0, 8, or 9
Default:
8
Description:
&F0 Load factory default values from ROM if &F8 was previously stored; load user default values
from non-volatile memory if &F9 was previously stored.
from non-volatile memory if &F9 was previously stored.
&F8 Read factory default values when &F is issued (effective only if you store &F8 using &W0).
&F9 Read values stored in non-volatile memory when &F is issued (effective only if you store &F9
using &W0).
using &W0).
Command:
$Fn Enable/Disable Auto-Reliable Fallback Character
Values:
n = 0 or 1
Default:
0
Description:
$F0 Do not fall back to non-error correction mode connect if <CR> is received during handshake.
$F1 Fall back to non-error correction mode connect if <CR> is received during handshake.
Command:
%Fn Echo Frequency Canceller Offset Compensation
Values:
n = 0 or 1
Default:
0
Description:
%F0 Disable echo canceller frequency offset compensation.
%F1 Enable echo canceller frequency offset compensation.
Command:
#Fn Fallback Modes When Online
Values:
n = 0, 1, or 2
Default:
2
Description:
#F0 No fallback when on line.
#F1 Fallback decrementally from maximum speed to 4800 bps as line conditions deteriorate.
#F2 Fallback decrementally to 4800 bps; fall forward when line conditions improve.
Command:
&Gn Guard Tones
Values:
n = 0, 1, or 2
Default:
0
Description:
&G0 Turn off ITU-T guard tones.
&G1 Turn on ITU-T 550 Hz guard tone.
&G2 Turn on ITU-T 1800 Hz guard tone.
Note:
The ZDXK is locked to the ITU-T 1800 Hz guard tone (&G2).
Command:
Hn On Hook/Off Hook
Values:
n = 0 or 1
Default:
None
Description:
H0 Go on hook (hang up).
H1 Go off hook.