Lantronix EDS4100 User Manual

6: Networking and Security
EDS4100 4 Port Device Server User Guide 126
Command Mode
The Modem Emulation’s Command mode supports the standard AT command set. For a
list of available commands from the serial or telnet login, enter AT?. Use ATDT, ATD, and
ATDP to establish a connection:
+++ Switches to command mode if entered from serial port during connection.
AT? Help.
ATDT<Address Info> Establishes the TCP connection to socket (<IP>/<port>).
ATDP<Address Info> See ATDT.
ATD Like ATDT. Dials default connect mode remote address and port.
ATO Switches to data mode if connection still exists. Vice versa to '+++'.
ATEn Switches echo in command mode (off - 0, on - 1).
ATH Disconnects the network session.
ATI Displays modem information.
ATQn Quiet mode (0 - enable results code, 1 - disable result codes)
ATVn Verbose mode (0 - numeric result codes, 1 - text result codes)
ATZ Restores the current state from the setup settings.
A/ Repeat last valid command.
These commands allow the EDS4100 to emulate a modem. The EDS4100 ignores valid
AT commands that do not apply to the EDS4100 and sends an OK response code.
In Command mode, the EDS4100 can make a connection to the remote host and using
the remote address and remote port information specified on the Tunnel – Connect Mode
page (see Tunnel – Connect Mode Page on page 54).
When making a connection from the EDS4100 using an ATDT or ATDP command, full or
partial IP addresses can be used. If a partial IP address is used, the EDS4100 uses the
remote address and port as configured in the Connect Mode settings.
For the following examples, we will assume that the remote address is configures as
192.168.16.10 and the port is set to 10001 in the Connect mode settings:
 Entering ATDT alone causes the EDS4100 to connect to the IP address and remote
port configured in Connect Mode.
 Entering ATDT 119.25.50 causes the EDS4100 to assume the first octet in the IP
address and connects to the remote IP address 192.119.25.50, port 10001. (Since
the remote port was not specified in the ATDT command, the remote port defined
under connect mode is used.)
 Entering ATDT 28.150 causes the EDS4100 to assume the first two octets in the IP
address and connects to the remote IP address 192.168.28.150, port 10001.
 Entering ATDT 150 causes the EDS4100 to assume the first three octets and
connects to the remote IP address 192.168.10.150, port 10001.
 Entering ATDT 28.150:10012 causes the EDS4100 to assume the first two octets in
the IP address and connects to the remote IP address 192.168.28.150, port 10012.

Lantronix EDS4100 Specifications

General

Brand	Lantronix
Model	EDS4100
Category	Server
Language	English