School Bus Signals Circuit

Published:2013/6/13 21:27:00 Author:muriel | Keyword: School Bus Signals Circuit

The first circuit is for school bus Loading/Unloading flashers used in most areas.   (View)

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Example Signal Circuit Work Sheet

Published:2013/6/13 1:26:00 Author:muriel | Keyword: Example Signal Circuit, Work Sheet

The next diagram can be used to sort out the aspect logic of the system befor adding the electronics. The circuit simulates the output of the 2 Sets Of 2 Inputs To 4 Discrete Outputs adapter circuit using four SPST switches. Only one of the SPST switches can be closed at a time.   (View)

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Example Signal Circuit

Published:2013/6/13 1:26:00 Author:muriel | Keyword: Example Signal Circuit

This circuit is designed to take its input from the switched contacts of two Tortoise® type switch machines that operate a double-slip turnout and covert these to 4 discrete outputs that control 4 sets of 3 aspect signals. One aspect on each signal will show on each signal head depending on how the turnout is set. Because there are four slip switch settings but only three LEDs per signal, one of the aspects on each signal is used twice. In this example the Red LED is used twice for each signal but the other colours could be use twice as well. For a crossover made with two turnouts the signals could be wired so that: Red shows for the blocked route, Green shows for the through route and Greeen/Yellow shows for a diverging route. It is possible to control the the adapter circuit directly from DPDT toggle switches or 556 switch machine driver outputs that operate the switch machine's motors. This would allow both sets of contacts on the machines to be used for frog power.   (View)

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Multiple Receivers

Published:2013/5/28 22:20:00 Author:muriel | Keyword: Multiple Receivers

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3 Colour Signals Using Bicolour LEDs

Published:2013/5/28 21:48:00 Author:muriel | Keyword: 3 Colour Signals, Bicolour LEDs

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PRR - Position Light Type Signals

Published:2013/5/28 21:48:00 Author:muriel | Keyword: PRR - Position Light Type, Signals

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RED signal

Published:2013/5/28 21:47:00 Author:muriel | Keyword: RED signal

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2 Colour Signals 2

Published:2013/5/28 21:46:00 Author:muriel | Keyword: 2 Colour Signals

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Bidirectional Signals 2

Published:2013/5/28 21:45:00 Author:muriel | Keyword: Bidirectional Signals

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Bidirectional Signals

Published:2013/5/28 21:44:00 Author:muriel | Keyword: Bidirectional Signals

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Multiple Receivers For Each Detector Input

Published:2013/5/22 22:15:00 Author:muriel | Keyword: Multiple Receivers, Each Detector Input

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U-Blox GPS receiver Board

Published:2013/5/14 22:29:00 Author:muriel | Keyword: U-Blox GPS receiver Board

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Low-Power IC Packs GPS Receivers 2

Published:2013/5/14 22:18:00 Author:muriel | Keyword: Low-Power IC , Packs GPS Receivers

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Low-Power IC Packs GPS Receivers

Published:2013/5/14 22:18:00 Author:muriel | Keyword: Low-Power IC, Packs GPS Receivers

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Diagram description GPS support kit

Published:2013/5/14 22:16:00 Author:muriel | Keyword: GPS support kit

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GPS LCD Display

Published:2013/5/14 22:15:00 Author:muriel | Keyword: GPS LCD Display

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Block diagram of the GPS-based frequency standard.

Published:2013/5/14 22:14:00 Author:muriel | Keyword: GPS-based frequency standard.

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Evaluation Board Including Components 2

Published:2013/5/14 22:12:00 Author:muriel | Keyword: Evaluation Board Including Components

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Evaluation Board Including Components

Published:2013/5/14 22:12:00 Author:muriel | Keyword: Evaluation Board Including Components

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An external antenna for the GPS-38, Magellan 2000, or Eagle Explorer

Published:2013/5/14 22:11:00 Author:muriel | Keyword: external antenna, GPS-38, Magellan 2000, Eagle Explorer

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