Type AT Signal - Alstom
Type AT Signal - Alstom
Type AT Signal - Alstom
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Theory of Operation<br />
2. SECTION 2– THEORY OF OPER<strong>AT</strong>ION<br />
2.1. GENERAL<br />
This section contains operating information on the <strong>Alstom</strong> <strong>Type</strong> <strong>AT</strong> <strong>Signal</strong> along with<br />
diagrams showing power distribution and wiring to the signal.<br />
2.2. FUNCTIONAL DESCRIPTION<br />
<strong>Type</strong> <strong>AT</strong> <strong>Signal</strong>s are controlled externally through relay logic circuits or vital processors.<br />
Depending on the distance of the signal from the relay room, power supplied to the<br />
signal may vary.<br />
P2502, Rev. Apr/08 2–1 <strong>Alstom</strong> <strong>Signal</strong>ing Inc.
Change language