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MS100.shtml
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<meta name="generator" content=
"HTML Tidy for Mac OS X (vers 31 October 2006 - Apple Inc. build 15.17), see www.w3.org">
<title>JMRI Hardware Support - Connecting an MS100 to
LocoNet®</title>
<meta name="author" content="Bob Jacobsen">
<meta name="keywords" content=
"Digitrax Chief DCS Command Station MS-100 LocoBuffer java model railroad JMRI install windows">
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<h1>Hardware Support: Connecting an MS100 to
LocoNet®</h1>
<p>The MS100 from Digitrax allows you to connect many types
of computers to a LocoNet®.</p>
<p>Unfortunately, the MS100 is a somewhat old design, and
doesn't provide a reliable connection to the LocoNet.</p>
<ul>
<li>Your computer may not be able to connect through the
MS100.</li>
<li>Even if it the MS100 makes a connection, you are likely
to encounter hard-to-diagnose intermittent errors.</li>
<li>Even if you get the MS100 to work once, it may
permanently fail due to an update to the computer operating
system.</li>
<li>If you have problems with an MS100, there may not be
anybody who can help you with them.</li>
</ul>We strongly recommend that new setups not use the MS100,
and existing users plan on converting to a better solution
before it becomes necessary.
<p>The <a href="LocoBufferUSB.shtml">LocoBuffer USB</a> and
the <a href="PR3.shtml">Digitrax PR3</a> are currently the
most reliable ways to connect a computer to a LocoNet. The
LocoBuffer-USB is produced by Dick Bronson's <a href=
"http://www.rr-cirkits.com">RR-CirKits</a> company, based in
part on the original LocoBuffer design.</p>
<p>In MS100 mode, the program attempts to open the port at
16600 baud, the LocoNet rate. If this fails, it attempts to
open the port at 16457 baud, which is a standard rate that's
close enough to work. If this also fails, the won't be able
to talk to the LocoNet through the MS100.</p>
<p>Because neither of these rates are available, <b>the MS100
can't be used with Mac OS X, Windows 7 or most Windows Vista
machines</b>.</p>
<p>Because we can't be sure your computer will be able to
talk to a MS100 without trying it, you should test this
before spending money on the MS100. To do that:</p>
<ul>
<li>Start the program.</li>
<li>Set the preferences for MS100 and your serial port. You
don't need to have anything connected, but do select the
port you will eventually be using.</li>
<li>Save the preferences.</li>
<li>Quit the program and restart it so that the preferences
take effect.</li>
</ul>
<p>If you get a dialog box saying "Could not set baud
rate...", then you won't be able to use your computer with a
MS100. You should use a LocoBuffer.</p>
<h3>Linux hack to set the baud rate</h3>Some users have
reported success using Linux commands to directly set the
baud rate while the program is running. To do this:
<ul>
<li>Start DecoderPro, and wait until you see the error
message that the baud rate could not be set.</li>
<li>Run the following commands from the Linux command line:
<pre>
setserial /dev/ttyS0 divisor 7
setserial /dev/ttyS0 spd_cust
stty speed 38400 < /dev/ttyS0
</pre>
</li>
<li>Then click on "OK" and continue on.</li>
</ul>This has been reported to work with both RH9 and FC3.
<p>LocoNet® is a registered trademark of <a href=
"http://www.digitrax.com">Digitrax, Inc.</a></p>
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