Serge NOEL
85 lines
3.1 KiB
Plaintext
85 lines
3.1 KiB
Plaintext
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<html lang="en">
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<meta name="generator" content="HTML Tidy for HTML5 for Apple macOS version 5.8.0">
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<title>JMRI Hardware Setup Support - MacOS Serial Port connections</title>
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<meta name="author" content="Bob Jacobsen">
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<meta name="author" content="Dick Bronson">
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<meta name="author" content="Walter Thompson">
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<meta name="author" content="John Plocher">
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<meta name="keywords" content="java model railroad JMRI install windows">
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<div id="mBody">
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<div id="mainContent">
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<h1>Hardware Setup Support: MacOS Serial Port connections</h1>
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<h2 id="limitations">Limitations</h2>
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<p>Newer MacOS and OS X hardware come without a built in RS232 serial port but provide USB
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ports.<br>
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Connect a serial DCC Adapter using a <a href="USBtoSerial.shtml">USB-to-Serial
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Adapter</a>.</p>
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<h2 id="connecting">Connecting</h2>
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<h3>Wiring</h3>
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<p>Macintosh serial ports used a "mini DIN-8" connector, which does not contain all of the
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signals of a typical RS232 connector. This page discusses how to wire an adapter so that a
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Macintosh can work with JMRI and a LocoBuffer or LocoBuffer II. The same adapter may also
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work with other protocols, particularly those that use "hardware flow control".</p>
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<img src="images/LB-II-Mac.gif" alt="Mac DIN-8 wiring diagram" width="374" height="192">
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<p>Note that the Macintosh has only one status output and input.</p>
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<p>If the serial device uses "hardware flow control", it will assert the CTS lead to indicate
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when it's OK to send data. That has to be connected to the Macintosh input lead, or the
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program won't be able to send.</p>
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<p>The status output will be set active by JMRI at startup. It should be connected to
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whatever status leads (e.g. RTS) the serial device looks at.</p>
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<h2 id="documentation">Documentation</h2>
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<h3>Third Party info</h3>
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<p>A good survey of (Macintosh) serial connections, including debugging techniques, is
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available at:</p>
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<ul>
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<li>
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<a href=
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"http://www.applefool.com/se30/#serialdata">http://www.applefool.com/se30/#serialdata</a>
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</li>
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<li>
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<a href=
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"https://maxembedded.com/2013/09/serial-communication-rs232-basics/#SerialTerm">https://maxembedded.com/2013/09/serial-communication-rs232-basics/#SerialTerm</a>
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</li>
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<li>
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<a href=
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"https://en.wikipedia.org/wiki/Serial_port">https://en.wikipedia.org/wiki/Serial_port</a>
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provides general information
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</li>
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</ul>
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<h2>Credits</h2>
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<p>The information on this page was provided by Dick Bronson and Walter Thompson.</p>
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<script src="/js/help.js"></script>
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