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Key point missed---->"free to devise their own signaling systems as long as they uphold some basic regulated safety requirements."...
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My god Sapper, you are DENSE. Reading through this almost gave me a stroke. Jesus.
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:ROFLMAO:
Dude, in the first image those are two permissive intermediate signals, one for each track.
The other ones are two absolute...
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because they don't exist and therefore have no known way to read them.
The issue is that you just made it up and wouldn't tell anyone...
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