User`s guide
21
Take note that because of the space between ‘Local’ and ‘LAN’, the wording is enclosed in
double quotes.
To set an IP address on 192.168.1.1 on Ethernet 0:
eth 0 ipaddr 192.168.1.1
To set an IP address of 172.16.0.1 on Ethernet 1:
eth 1 ipaddr 172.16.0.1
To enable the DHCP client on Ethernet 2:
eth 2 dhcpcli on
The Escape Sequence
If you enter a command such as “ATD”, which results in the unit successfully establishing a
connection to a remote system, it will issue a “CONNECT” result code and switch from
command mode to on-line mode. This means that it will no longer accept commands from
the terminal. Instead, data will be passed transparently through the unit to the remote
system. In the same way, data from the remote system will pass straight through to your
terminal.
The unit will automatically return to command mode if the connection to the remote system
is terminated.
To return to command mode manually, you must enter a special sequence of characters
called the “escape sequence”. This consists of three occurrences of the “escape character”,
a pause (user configurable) and then “AT”. The default escape character is “+” so the
default escape sequence is:
+++ {pause} AT
Entering this sequence when the unit is on-line will cause it to return to command mode but
it will NOT disconnect from the remote system unless you specifically instruct it to do so
(using “ATH” or another method of disconnecting). If you have not disconnected the call,
the “ATO” command may be used to go back on-line.
Result Codes
Each time an AT command line is executed, the unit responds with a result code to indicate
whether the command was successful. If all commands entered on the line are valid, the
“OK” result code will be issued. If any command on the line is invalid, the “ERROR” result
code will be issued.
Result codes may take the form of an English word or phrase (verbose code) or an
equivalent number (numeric code), depending on the setting of the “ATV” command.
Verbose codes are used by default.