03-15-2008
From what I have read about minicom, it is a terminal emulation program.
So if you want to connect to another Linux/Unix system via a serial port then you can do that.
The setup that you have (I presume) requires that you communicate with a device over a serial port that does does not have a keyboard.
You will have to write (presumably in C) a device handler, that sends hex 68 to the machine, and then listens on the port for the response.
Usually equipment like this is sold with API software, or has a website that you can use to download software, to solve the problem that you are having.
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LEARN ABOUT MINIX
plmpower
plmpower(8) powerman plmpower(8)
NAME
plmpower - control Insteon/X10 devices via SmartLabs PLM 2412S
SYNOPSIS
plmpower --device serial-port
DESCRIPTION
plmpower is a helper program for powerman which enables communication with Insteon/X10 devices via SmartLabs Power Line Modem, model 2412S.
It is run interactively by the powerman daemon. It can also be useful as a standalone tool for debugging X10/Insteon networks based on the
above device.
NETWORK SETUP
Note the addresses of your Insteon/X10 devices. Plug the PLM into an AC outlet, preferably on the same electrical phase as the devices
under control. Devices are available to bridge phases if this is not possible.
Attach the PLM's serial port to your computer, and ensure that nothing else is using the serial port such as the system console or
getty(8). Run plmpower and try the interactive commands below to see if the devices respond reliably.
Once everything is working, configure powermand to run plmpower as a coprocess as described in powerman.conf(5).
OPTIONS
-d, --device serial-port
Specify the path to the special file connected to the PLM's serial port.
-t, --timeout msec
Set the Insteon timeout to the specified number of milliseconds (default 1000).
-x, --x10-attempts number
Set the number of times to run every X10 command (default 3). X10 does not provide an ACK/NAK mechanism like Insteon so we cannot
be certain that any particular X10 command completed, therefore X10 commands are issued multiple times to increase confidence.
INTERACTIVE COMMANDS
The following commands are accepted at the plmpower> prompt. Address arguments may be Insteon (e.g. 1A.2B.3C) or X10 (e.g. G12).
help Display help on the available commands.
info Get info about the PLM.
reset Reset the PLM (clears the all-link db).
on addr
Turn on device.
off addr
Turn off device.
status addr
Query status of device (Insteon only).
ping addr
Time round trip request/response to device (Insteon only).
FILES
/usr/sbin/plmpower
/etc/powerman/powerman.conf
ORIGIN
PowerMan was originally developed by Andrew Uselton on LLNL's Linux clusters. This software is open source and distributed under the terms
of the GNU GPL.
SEE ALSO
powerman(1), powermand(8), httppower(8), plmpower(8), vpcd(8), powerman.conf(5), powerman.dev(5), powerman-devices(7).
http://sourceforge.net/projects/powerman
powerman-2.3.5 2009-02-09 plmpower(8)