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Ken,

You did not indicate which signal masts were not working as expected. ?After working with the file that you uploaded, the original problem might be resolved after cleaning up several major issues.

The first problem is the double crossover (LT3). ?The block routing data structures only support a single connection between two blocks. ?The double crossover has two blocks, 814 and 818, which means there are two connections based on the upper to lower and the lower to upper blocks. ?The normal solution is to split the upper or lower straight track into to two blocks. ?Since the double crossover is part of two larger blocks, the following arrangement seems to work.

Ignore the red X for the signal masts.

The selected signal system is AAR-1946. ?The mast types are "Double position light high signal" and "Single position light high permissive signal".

The double head mast uses Lunar for Permissive, Restricting and Permissive Medium. ?The single head uses Lunar for Permissive. ?Signal heads don't have a Lunar "Appearance". ?Normally a flashing appearance is used to represent Lunar. ?Since you are using "Signal Head Controlled" masts, when a Lunar appearance is sent to the SE8C signal head definition, an error occurs. ?

An additional issue for the double head mast is that the "danger" state is mapped to Restricting. ?This means that anytime the signal mast logic wants to set the double head mast to "Stop", the Restricting Lunar appearance is send to the signal head which creates an error.

My understanding is that the single head masts should be absolute unless they are being used as intermediate block signals.

The solution is to pick a different mast type or a different signal system.

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Once these two issues have been resolved, we can then see if there is still a problem with the siding signal mast aspects.

Dave Sand

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