User's Manual

SATELLINE-M3-TR1
User Guide, Version 3.0
39
8 SW-RELATED COMMANDS AND OPTIONS
8.1 Repeater mode and addressing
Repeaters and addressing may be used to extend the coverage area of a radio modem network,
and to direct messages to selected radio modems in the network. In large systems, with several
repeaters and formed repeater chains, it is often practical to use routing instead of plain
addresses.
More information at www.satel.com
8.2 Message routing
This feature allows messages from terminal devices to be automatically routed over the radio
modem network to a specified recipient terminal.
More information at www.satel.com
8.3 Virtual Mode Routing
More information at www.satel.com
8.4 SL-Commands
An SL-command is a one continuous string of characters, which is separated from other data by
pauses that are equal or greater than time defined by Pause length parameter (default=3
characters) in the set-up. No extra characters are allowed at the end of an SL-command.
Serial interface settings are the same as in data transfer and MODE pin MUST NOT be
connected to ground (GND). SL-command is properly recognised also in the case when the
command string is terminated in <CR> (=ASCII character no. 13, Carriage Return, 0x0d) or
<CR><LF> (<LF> = ASCII char. no. 10, Line Feed, 0x0a). If multiple SL commands are sent
to the radio modem the next command can be given after receiving the response ("Ok" or
"Error") of the proceeding command. In addition, it is recommended to implement a timeout to
the terminal software for recovering the case when no response is received from the radio
modem.
When the power of a radio modem is switched off the configuration settings of a radio modem
always return to values defined initially using the Programming Mode, thus resetting any settings
changed using SL-commands during power on. It is however possible to save settings changed
by using SL-commands and to make them the new configuration settings.