Serge NOEL
91 lines
3.3 KiB
Plaintext
91 lines
3.3 KiB
Plaintext
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<title>N&W 1981 Signaling Definition</title>
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<h2>Southern 1981 Signal Definitions</h2>
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To set up this signal system, the user will need to define the speeds of blocks and turnouts
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to get proper operation. The Southern signal system was route based and technically speeds
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were identified by time table for a given location. This created the possibility to have two
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different signal aspects mean the same thing. Rule 304 Diverging Route Clear for example
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shows either a red over green over red or red over red over green as having the same
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indication. To make the signal system work in JMRI, I artificially designated one as a medium
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speed and one as a slow speed. Setting the turnout and block speeds will determine which one
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will be displayed. Block and turnout speeds should be set to either Normal, Medium, Slow, or
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Restricted.
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<p>The spaced mast looks like a three-head mast signal in which the center head was omitted.
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This mast may or may not be accurate. It is difficult to tell by looking at the signal rules.
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I have seen examples where the art did show unlit heads. In this case, there could have been
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a middle head but the red place holder was omitted. In this situation, the use of a
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three-head mast would be in order.</p>
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<p>Feel free to let me know if I have made any mistakes in this system. I am not a Southern
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Railway signal expert and will be happy to correct any mistakes.</p>
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<p>See the <a href="aspects.xml">aspect page</a>.</p>
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<p>Signal Mast definitions:</p>
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<ul>
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<li>
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<a href="appearance-CL-3-arm-absolute.xml">Three Arm Absolute Color Light Mast
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Signals</a>
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</li>
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<li>
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<a href="appearance-CL-2-arm-absolute.xml">Two Arm Absolute Color Light Mast Signals</a>
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</li>
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<li>
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<a href="appearance-CL-1-arm-absolute.xml">Single Arm Absolute Color Light Mast
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Signals</a>
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</li>
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<li>
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<a href="appearance-CL-2-arm-highspace-absolute.xml">Two Arm Spaced Absolute Color Light
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Mast Signals</a>
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</li>
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<li>
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<a href="appearance-CL-2-arm-permissive.xml">Two Arm Permissive Color Light Mast
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Signals</a>
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</li>
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<li>
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<a href="appearance-CL-1-arm-permissive.xml">Single Arm Permissive Color Light Mast
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Signals</a>
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</li>
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<li>
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<a href="appearance-2-light-dwarf.xml">Two Light Dwarf Signals</a>
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</li>
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<li>
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<a href="appearance-1-light-dwarf.xml">Single Light Dwarf Signals</a>
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</li>
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<li>
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<a href="appearance-1-light-dwarf-permissive.xml">Single Light Permissive Dwarf
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Signals</a>
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</li>
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</ul>
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