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8: Line and Tunnel Settings

EDS1100/2100 User Guide 63

3. Click Submit.

Modem Emulation

The EDS1100/2100 supports Modem Emulation mode for devices that send out modem signals.

There are two different modes supported:

 Command Mode—Sends verbal response codes.

 Data Mode—Information transferred in gets transferred out.

It is possible to change the default settings for verbose response codes, echo commands, and

quiet mode, by using Command Mode commands. The current settings can be overridden;

however on reboot, the settings return to the programmed settings.

Configure the connect string as required. The connect string appends to the communication

packet when the modem connects to a remote location. It is possible to append additional text to

the connect message.

Command Mode

The Modem Emulation 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. All of these commands behave like a modem. For commands that are valid

but not applicable to the EDS1100/2100, an “OK” message is sent (but the command is silently

ignored).

The EDS1100/2100 attempts to make a Command Mode connection as per the IP/DNS/port

numbers defined in Connect Mode. It is possible to override the remote address, as well as the

remote port number.

Table 8-1 lists and describes the available commands.

Timeout Enter a time, in milliseconds, for the EDS1100/2100 to

disconnect on a timeout. The value 0 (zero) disables the idle

timeout.

Flush Serial Data Select Enabled to flush the serial data buffer on a

disconnection.

Table 8-1 Modem Emulation Commands and Descriptions

Command Description

+++ Switches to Command Mode if entered from serial port during connection.

AT? Help.

ATDT<Address Info> Establishes the TCP connection to socket (<ipaddress>:<port>).

ATDP<Address Info> See ATDT.

ATD Like ATDT. Dials default Connect Mode remote address and port.

ATD<Address Info> Sets up a TCP connection. A value of 0 begins a command line interface

session.

ATO Switches to data mode if connection still exists. Vice versa to '+++'.

Table 8-22 Tunnel Disconnect Mode Fields (continued)

Field Description

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 156 157

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