Multi-Tech Systems MULTIMODEM MT2834ZDX User Manual
Page 15
Chapter 3 – AT Commands, S-Registers, and Results Codes
Multi-Tech Systems, Inc. MT2834ZDX User's Guide
15
Command:
&SFn DSR/CD Interaction Control
Values:
n = 0 or 1
Default: 0
Description:
&SF0 Select DSR to follow CD.
&SF1 Select DSR to be independent.
Command:
$SBn Serial Port Baud Rate
Values:
n = speed
Default: 57600
Description:
$SB300 Set serial port to 300 bps.
$SB1200 Set serial port to 1200 bps.
$SB2400 Set serial port to 2400 bps.
$SB4800 Set serial port to 4800 bps.
$SB9600 Set serial port to 9600 bps.
$SB19200 Set serial port to 19200 bps.
$SB38400 Set serial port to 38400 bps.
$SB57600 Set serial port to 57600 bps.
$SB115200 Set serial port to 115200 bps.
Note: Baud adjust must be off ($BA0) to enable fixed baud rate.
Command:
T Tone-Dial
Values: n/a
Default: P
command
Description:
Modem will tone-dial numbers following a T in the dialing command.
Command:
&Tn Respond to Remote Digital Loopback Signal
Values:
n = 4 or 5
Default: 5
Description:
&T4 Enable response to remote digital loopback signal.
&T5 Disable response to remote digital loopback signal.
Command:
#Tn Trellis-Coded Modulation
Values:
n = 0 or 1
Default: 1
Description:
#T0 Disable trellis-coded modulation.
#T1 Enable trellis-coded modulation.
Command:
Un Loopback Test Modes
Values:
n = 0, 1, 2, or 3
Default: None
Description:
U0 Enable local nalog loopback originate mode.
U1 Enable local analog loopback answer mode.
U2 Enable remote digital loopback mode.
U3 Enable local digital loopback mode.
Command:
Vn Result Codes (Verbose/Terse)
Values:
n = 0 or 1
Default: 1
Description:
V0 Result codes sent as digits (terse response).
V1 Result codes sent as words (verbose response).
Command:
#Vn V.32terbo Handshake Tones
Values:
n = 0 or 1
Default: 1
Description:
#V0 Include V.32terbo tones in handshake.
#V1 Exclude V.32terbo tones from handshake.
Command:
W Wait for New Dial Tone
Values: n/a
Description:
Inserted in dialing command, causes modem to wait for a new dial tone. (X2 or X4 must be
selected.)