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Signal Board

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Signal Board 

a panel with signal lights or figures that light up. Signal boards are used for transportation traffic control, at stadiums and sports grounds for announcing the results of competitions, and for advertisements.
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Also, a stencil for a mixed signal board must have isolation islands created to segregate current and voltage between analog and digital circuitry.
Why mixed signal calls for precise stencils: taking a middle ground ... by Khan, Zulki / Printed Circuit Design & Fab
The signal board is equipped with red lights to signal when a pilot's aircraft "breaks the gate.
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Lane closures will be in place during the work with traffic controlled by signal boards and a 30mph temporary restriction will be in force.
Improvements delay drivers; WOMBOURNE: pounds 340,000 on better road ... by Birmingham Mail (England)
 
 
 
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