Type AT Signal - Alstom
Type AT Signal - Alstom
Type AT Signal - Alstom
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Theory of Operation<br />
Figure 2–4 is a wiring diagram of a typical three aspect LED signal (one aspect blank)<br />
configured red, blank, red.<br />
The signal wiring shown in dotted lines represent field wiring of four-conductor number<br />
14 AWG cable.<br />
R<br />
1<br />
2<br />
X<br />
R<br />
1<br />
2<br />
ACX<br />
xxxRG<br />
Figure 2-4. Typical <strong>Type</strong> <strong>AT</strong> 3 Aspect LED <strong>Signal</strong> Wiring Diagram<br />
(Center Aspect is Blank)<br />
P2502, Rev. Apr/08 2–6 <strong>Alstom</strong> <strong>Signal</strong>ing Inc.