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Networking.shtml
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Networking.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: Network Access</title>
<meta name="author" content="Bob Jacobsen">
<meta name="keywords" content="JMRI network access">
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<h1>JMRI Code: Network Access</h1>
<p>This page describes various
forms of network access available in JMRI. More capabilities
are added all the time, so please check with the user group
for up-to-date information.</p>
<h2>Methods of Network Access</h2>JMRI interacts with
networks in two basic forms: downstream connections and
upstream connections.
<p>A downstream connection allows JMRI to connect to a layout
via a network for operations and control. This uses a network
connection to do the same kinds of things that are often done
via serial RS232 and USB links.</p>
<p>An upstream connection allows other devices to command
JMRI over a network connection. In this case, the network
connection allows other devices and/or programs to do things
that are normally done via scripts and the graphical user
interface.</p>
<p>In the rest of this page, we provide links to the various
examples of those two general areas.</p>
<h2>Downstream (networked layout hardware) connections</h2>
<ul>
<li>LocoNet systems
<ul>
<li>
<a href=
"../../hardware/loconet/LocoNetServer.shtml">LocoNet
RMI client server connection</a>
<p>This uses Java RMI to provide client-server access
to the LocoNet message stream.</p>
</li>
<li>
<a href=
"../../hardware/loconet/LbServer.shtml">LocoNetOverTcp
to LbServer</a>
<p>This uses Java RMI to provides access to the
LocoNet message stream via the <a href=
"http://loconetovertcp.sourceforge.net/">LbServer
protocol</a>.</p>
</li>
</ul>
</li>
<li>C/MRI
<ul>
<li>This exchanges the C/MRI poll/response protocol via
a <a href=
"../../hardware/TerminalServer.shtml">terminal
server</a></li>
</ul>
</li>
<li>CAN via MERG Network Interface
<ul>
<li>The network interface can be used for the CANEther, CANGC1e, CANPi and CBUS Server.
</li>
<li>
CBUS Server is a <a href="https://nodejs.org/en/">Node.js</a> program to allow multiple network connections
to a MERG CANUSB4.
<a href="https://github.com/phillipsnj/mergCbusServer">MERG CBUS Server</a>
</li>
</ul>
</li>
<li>EasyDCC
<ul>
<li>This exchanges the EasyDCC ASCII command station
protocol via a <a href=
"../../hardware/TerminalServer.shtml">terminal
server</a></li>
</ul>
</li>
<li>JMRIClient
<ul>
<li><a href="../../hardware/jmriclient/index.shtml">Via
network connection to a JMRI Simple Server</a></li>
</ul>
</li>
<li>NCE
<ul>
<li>This exchanges the NCE command station protocol via
a <a href=
"../../hardware/TerminalServer.shtml">terminal
server</a></li>
</ul>
</li>
<li>SRCP
<ul>
<li><a href="../../hardware/SRCP/index.shtml">Via
network connection to SRCP server</a></li>
</ul>
</li>
<li>ECOS
<ul>
<li><a href="../../hardware/ecos/index.shtml">Via
network connection to ECOS command station</a></li>
</ul>
</li>
<li>XPressNet
<ul>
<li><a href="../../hardware/XPressNet/index.shtml">Via
network connection to an XnTcp adapter</a></li>
<li><a href="../../hardware/XPressNet/index.shtml">Via
network connection to the Lenz LIUSB Server (Windows
only)</a></li>
</ul>
</li>
</ul>
<h2>Upstream (networked JMRI operations) connections</h2>
<ul>
<li>Built-in <a href="../../web/index.shtml">web server</a>
(<a href=
"http://jmri.org/JavaDoc/doc/jmri/web/server/package-summary.html">code</a>)
<p>This is advertised on Bonjour/Zeroconf as a
"_http._tcp.local." service. In particular, this contains
the <a href=
"http://jmri.org/JavaDoc/doc/jmri/web/xmlio/package-summary.html">
JMRI XMLIO support</a>, which allows web browsers (with
or without AJAX) to monitor and control a layout by
accessing a <a href=
"http://jmri.org/JavaDoc/doc/jmri/web/servlet/xmlio/package-summary.html">
JMRI XMLIO Servlet</a> via the web. It also includes
facilities for displaying and clicking on any <a href=
"http://jmri.org/JavaDoc/doc/jmri/web/servlet/frameimage/package-summary.html">
open JMRI window</a>.</p>
</li>
<li>Via Python/jython scripting</li>
<li>For <a href=
"../../../package/jmri/jmrit/withrottle/UserInterface.shtml">
remote throttles</a> such as the iPhone or Android.
(<a href=
"http://jmri.org/JavaDoc/doc/jmri/jmrit/withrottle/package-summary.html">code</a>)
(<a href="http://withrottle.com">WiThrottle product web
site</a>) (<a href=
"../../../package/jmri/jmrit/withrottle/EngineDriverAndroidThrottle.shtml">Android
Engine Driver page</a>)
<p>This is advertised on Bonjour/Zeroconf as a
"_withrottle._tcp.local." service.</p>
</li>
<li>Via running JMRI as an <a href=
"http://www.modelrailroadmanager.com/MRRM_Advanced_Edition/Software_Architecture.html">
Enterprise Java Bean</a></li>
<li>Via providing a <a href=
"../../hardware/loconet/LocoNetServer.shtml">LocoNet RMI
server</a>.
<p>This is advertised on Bonjour/Zeroconf as a
"_jmri-locormi._tcp.local." service.</p>
</li>
<li>Via providing a <a href=
"http://loconetovertcp.sourceforge.net/">LbServer</a>
implementation.
<p>This is advertised on Bonjour/Zeroconf as a
"_loconetovertcpserver._tcp.local." service. (Name
pending approval from the original protocol
developers)</p>
</li>
<li>Via providing an <a href=
"http://srcpd.sourceforge.net/">SRCP</a> server
implementation.
<p>This is advertised on Bonjour/Zeroconf as a
"_srcp._tcp.local." service.</p>
</li>
<li>Via providing a <a href=
"../../hardware/jmriclient/index.shtml">JMRI Server</a>
implementation.</li>
</ul>See also the <a href=
"http://jmri.org/JavaDoc/doc/jmri/util/zeroconf/ZeroConfUtil.html">
jmri.util.zeroconf</a> package of Zeroconf/Bonjour utilities
for use in JMRI.
<p>See also the <a href="http://www.dns-sd.org">DNS-SD</a>
page for more information on Zeroconf/Bonjour/"DNS Service
Discovery" networking.</p>
<p>Search "man dns-sd" for more information on the dns-sd
debugging command-line tool.</p>
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