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Tilt Assembly Specifications
There are Dec_NEG, DEC_POS,HA_NEG,HA_POS,DEC_VER etc. Don't know what this does.
There are a variety of mercury switches too.
Four normal limits and four Failsafe limits, the +/- of the axes are tied together to save wire.
Two home near the zenith.
Photo showing how to rescue the telescope from a tilt limit strike.