Atlas signal - Tortoise Interlocking

Bill Wilken

Atlas has published an excellent wiring diagram (see attached) showing
how to create an interlocking connection between its two-headed signal
and an Atlas switch motor. I want to substitute a Tortoise switch
motor for the Atlas switch motor, but do not want to proceed until I
have a clear understanding of how to wire the Tortoise to the Atlas
control boards. Among other things, I suspect that in-line resistors
may be required, but have not idea of what type.

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