Modem Mode - CipherLab 8001 User Manual

8 8001/8300/8500 Ethernet Cradle User Guide

1.5.3 Modem Mode

It works almost the same as a modem device.
It can connect to any specific IP via assigned port number. (IP address/host name: port
number).
It supports TCP server/client mode.
It supports AT commands to configure the cradle.
It supports "+++" to escape to command mode.
AT Commands
Note: The "RING" message will be sent to the terminal up to ten times at an interval of 7.5
Note: The escape sequence will break the connection.
The Ethernet Cradle can be controlled via the use of a DTE (Data Terminal
Equipment) platform. Issue the AT commands via IR interface in Modem Mode.
The attention: "AT" prefix is required prior to entering any command. All
commands require a carriage return or <CR> following the entry of the desired
command, and are case insensitive. All command responses are encapsulated by a
carriage return and line feed or <CR><LF>. The ASCII display of these characters
is suppressed with only the modem response being presented. The Ethernet Cradle
does not support multiple command such like "ATE0=1&W".
Normally, the cradle is in TCP server mode and waiting for the connection request
call from a remote device. When "\r\nRING\r\n" is received, the terminal has to
accept it by issuing "ATA".
seconds. The terminal has to respond before the counter times out.
However, when the terminal issues "ATDT xxx.xxx.xxx.xxx:kkkk" to create a
connection with a remote device, the cradle will be in TCP client mode.
Escape Sequence <+++>
The escape sequence consists of three characters (+++). Once a connection has been
established, type the escape sequence to return to command state.