Serge NOEL
78 lines
3.2 KiB
Plaintext
78 lines
3.2 KiB
Plaintext
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<h2>JMRI: USS CTC Tools Recommendations</h2>
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<p>This page discussions some conventions that might be useful when setting up a CTC panel
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using the USS CTC tools. Basically, this is how we set up the device user names in
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<a href="https://www.jmri.org/jython/ctc/">the example</a>. It might be a
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helpful approach for you to organize all the needed info.</p>
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<p>
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The key organizing principle is the station or column number. These run from
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1 to the number of columns on the machine. They appear as N in the examples below.</p>
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<h3>On-Layout Items</h3>
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<dl>
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<dt>Track circuit sensors
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<dd>These are named with "TC" as an abbreviation for Track Circuit, followed by station number N,
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and then a user reasonable name: "TC Sta 1 Left Approach"; "TC Sta 2 Main"
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<dt>Turnouts
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<dd>There is only one Turnout per station in USS CTC systems, so these are named by
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station number: "Sta 1 Layout TO"
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<dt>Signals
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<dd>
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</dl>
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<h3>CTC Lever Controls</h3>
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Each position of a CTC lever has a sensor to detect how it's set,
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and a turnout that drives the lamp on that position. To reduce the number of
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names, we give the same name to those.
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<dl>
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<dt>Turnout Levers
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<dd>Station name, then TO to indicate the lever type, the turnout number, then a letter
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N for Normal or R for Reversed:
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"Sta 1 TO 1 N", "Sta 2 TO 3 R"
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<dt>Signal Levers
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<dd>Station name, then SI to indicate the lever type, the signal number, then a letter
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R for Right, C for Center or L for Left:
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"Sta 1 SI 2 C", "Sta 2 SI 4 R"
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<dt>Code Button
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<dd>The code button is a sensor named for the station number: "Sta 2 Code"
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<dt>Code Lamp
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<dd>The code lamp is a Turnout named for the station number, same as the code button:
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"Sta 2 Code"
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</dl>
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<h3>CTC Machine Track Diagram</h3>
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<dl>
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<dt>Track Occupancy Indicators
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<dd>Because these don't necessarily have a one-to-one relationship with the
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sensors on the layout (a track diagram might combine several layout track
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circuits into one on the panel), they are named slightly differently:
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"Sta 1 Left Approach TC"
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</dl>
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Some people will want to display the actual state of turnouts, track circuit sensors
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and signals on their track diagram. They can do that by putting up icons for the
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layout objects; no additional names are necessary, because there are no more items.
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