Modem Mode Commands - Lantronix MSS100 Installation Manual

Modem Emulation Mode
To use modem mode, enable modem emulation and set your MSS for Autostart using A as
the autostart character. This triggers the MSS to enter modem mode whenever it sees a
modem-style AT command.
Local>> CHANGE MODEM EMULATION ENABLED
Local>> CHANGE AUTOSTART CHARACTER "A"
Local>> LOGOUT PORT 1
As soon as someone types an AT command, the MSS will enter modem mode and begin
processing the AT commands. While in modem mode, the MSS will not display a
command line prompt.

5.5.1 Modem Mode Commands

The following commands are only available when the serial port is in Modem Emulation
mode they will have no effect when entered at the Local> prompt. For a complete list of
—
the AT commands supported by the MSS, check the MSS Reference Manual.
Command
AT?
ATDT <ipaddress>
ATE
ATH
ATQ
ATV
+++
5-10
Figure 5-10: Enabling Modem Mode
Table 5-1: Modem Mode Commands
Function
Help; gives list of valid AT commands.
Forms a TCP connection to the specified host. Two IP address formats are
allowed. The first uses periods, while the second omits periods and adds
zeroes to segments less than 3 characters long:
Ex: ATDT 192.0.55.22:3001T
Ex: ATDT 192000055022
Users can specify sockets as well; in the examples, :3001T tells the MSS to
form a raw TCP connection to socket 3001.
Echo mode off (ATE0) or on (ATE1, the default).
Disconnects the network session.
Result codes on (ATQ0, the default) or off (ATQ1).
Displays result codes. There are four options:
ATV0 = text codes, unknown commands cause an error.
ATV1 = numeric codes, unknown commands cause an error.
ATV2 = numeric codes, discard unknown commands.
ATV3 = text codes, discard unknown commands.
Returns the user to the command prompt when entered from the serial port
during a remote host connection.
Using the MSS