MT5634/MT9234 Modem; AT Command Set

Command: &Dn Data Terminal Ready (DTR) Control

Values:

n = 0, 1, 2, or 3

Default:

2

 

Description:

&D0

Modem ignores true status of DTR signal and responds

 

 

as if it is always on.

 

&D1

If DTR drops while in online data mode, the modem

 

 

enters command mode, issues an OK, and

 

 

remains connected.

 

&D2

If DTR drops while in online data mode, the modem

 

 

hangs up. If the signal is not present, the modem will not

 

 

answer or dial.

 

&D3

If DTR drops, modem hangs up and resets as if ATZ

 

 

command were issued.

Command: &En XON/XOFF Pacing Control

Values:

n = 12 or 13

Default:

12

 

Description:

&E12

Disables XON/XOFF pacing.

 

&E13

Enables XON/XOFF pacing.

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.

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Western Telematic MT9234, MT5634 manual Command &Dn Data Terminal Ready DTR Control, Command &En XON/XOFF Pacing Control