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17
Command Line Interface
XLink uses a command line interface. You can use a terminal program instead of LinkComm to talk to the
station. All features are available over command line. In fact, LinkComm uses the command line interface
to talk to the station. When messages are sent to the station via SMS or Iridium, they use the same format
as regular command line communications.
17.1
Why Use Command Line?
LinkComm provides an easy, user-friendly way to interact with the station. You should never
have
to use
the station's command line interface. However, some people prefer command-line interactions. Also, if
you want to send an SMS or an Iridium message to check the station status, you would need to find out
what the command for checking status is.
LinkComm cannot send messages to the station. SMS messages may be sent to the station from a cell
phone, and Iridium messages may be sent via email.
17.2
About the Command Line Interface
The command line interface provides a way to interact with the station. Any terminal program can be used
to connect to the station. You can connect via the RS-232 port, USB port, or attach to the TCP/IP address
of a station that has a Cell modem. You can send and receive messages to and from the station via SMS or
Iridium.
By default, the RS-232 interface operates at 115200 Baud, no parity, 8 data bits, 1 stop bit. The system
supports hardware handshaking; its use is recommended. Allow at least a half-second between opening
the communications port and starting communication.
To start command line mode, send carriage return or line feed (or both). If using a terminal program, press
ENTER. The station will respond with a prompt >
Once in command line mode, type HELP to get a list of supported commands. Also, try HELP SETUP.
While it is not recommended, changing the baud rate can be done by typing BAUD RATE. The default baud
rate is 115200.
With the terminal program, if the emulation is set for VT100, pressing the up arrow brings back the last
typed command.
Messages can be sent to the station remotely. Messages are treated like command line input with a few
differences. Some commands cannot be executed via a message. Other commands may have a differently
formatted output (in order to reduce message size).
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