47 lines
1.3 KiB
Plaintext
47 lines
1.3 KiB
Plaintext
<!DOCTYPE html>
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<html lang="en">
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<head>
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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: Speedometer - Using the serial port for block sensors</title>
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</head>
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<body>
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<div id="mBody">
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<div id="mainContent">
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<h1>Speedometer</h1>
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<h2>Using the serial port for Block Sensors</h2>
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Jim Scorse has provided a schematic for connecting an NCE block detector to the serial
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port.<br>
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<img src="images/speed0.jpg" width="400" height="300" alt="circuit diagram">
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<h3>DB9 and DB25 connections</h3>
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<pre>
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DB9 pin DB25 pin
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------- --------
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DCD 1 8
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RxD 2 3
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TxD 3 2
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DTR 4 20
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ground 5 7
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DSR 6 6
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RTS 7 4
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CTS 8 5
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RI 9 22
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</pre>
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<p>Back to the <a href="index.shtml">Speedometer main Help page</a>.</p>
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</div>
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<script src="/js/help.js"></script>
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</body>
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</html>
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