Multi-Tech Systems Modem Module MT3334SMI User Manual
Page 24
ModemModule Developer’s Guide
MT3334SMI
24
Command:
&Fn
Load Factory Settings
Values:
n = 0
Default:
None
Description:
&F0
Load factory settings as active configuration.
Note: See also the Z command.
Command:
&Gn
V.22bis Guard Tone Control
Values:
n = 0, 1, or 2
Default:
0
Description:
&G0
Disable guard tone.
&G1
Set guard tone to 550 Hz.
&G2
Set guard tone to 1800 Hz.
Note: The &G command is not used in North America.
Command:
&Kn
Flow Control Selection
Values:
n = 0, 3, or 4
Defaults:
3
Description:
&K0
Disable flow control.
&K3
Enable CTS/RTS hardware flow control.
&K4
Enable XON/XOFF software flow control.
Command:
&Pn
Pulse Dial Make-to-Break Ratio Selection
Values:
n = 0, 1, or 2
Default:
0
Description:
&P0
60/40 make-to-break ratio
&P1
67/33 make-to-break ratio
&P2
20 pulses per second
Note: The &P command is used only in Japan.
Command:
&Qn
Asynchronous Communications Mode
Values:
n = 0, 5, 6, 8, or 9
Default:
5
Description:
&Q0
Asynchronous with data buffering. Same as \N0.
&Q5
Error control with data buffering. Same as \N3.
&Q6
Asynchronous with data buffering. Same as \N0.
&Q8
MNP error control mode. If MNP error control is not established, the modem falls back according
to the setting in S36.
&Q9
V.42 or MNP error control mode. If neither error control is established, the modem falls back
according to the setting in S36.
Command:
&Sn
Data Set Ready (DSR) Control
Values:
n = 0 or 1
Default:
0
Description:
&S0
Force DSR always high (on).
&S1
Let DSR go high only during a connection.
at power-on or following the ATZ command.
Command:
&V
Display Current Settings
Values:
n/a
Description:
Displays the active modem settings, including the callback security settings if callback security is
enabled. If the setup password has been entered, it also displays the callback security passwords.
Command:
&Wn Store Current Configuration
Values:
n = 0
Default:
0
Description:
&W0
Stores current modem settings in non-volatile memory and causes them to be loaded at power-on
or following the ATZ command instead of the factory defaults. See also the &F command.
&W1
Clears user default settings from non-volatile memory and causes the factory defaults to be
loaded at power-on or following the ATZ command.