rock slide detectors
NW Mailing List
nw-mailing-list at nwhs.org
Wed Aug 7 04:45:05 EDT 2013
Were the rock slide detectors tied into the signal system? In other words,
if a rock slide detector in a block were activated, would this cause the
signals for that block to go to stop (or any other aspect for that matter)?
Jim Cochran
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