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General Installation Guidelines
Speaker
– Use the largest speaker that can reasonably fit your available space.
For best acoustics, the speaker should be sealed to the floor so that sound
going out the front of the speaker cannot easily get to the back side.
Access Jack
– Unobtrusive but accessible. Typically in the floor of tenders and
boxcars and on the fuel tanks of diesels. Many models have removable
pieces, doors, etc. where you can mount these hidden from view.
Mounting the Decoder
– Make sure that the circuit boards will not touch
anything metal. The decoder may get warm enough to soften hot melt
glue, we do not recommend using it; do not use conductive silicon
adhesive either.
Speed Sensor
– You may need to experiment to get reliable triggering from a
rotating axle with magnets on it. After
mounting the magnets on the axle, hold
the reed switch in various positions and
hook something to the reed so you can
tell when the switch is closed. An ohm
meter with a beeper works great. You can
point the reed switch directly at the
axle/magnets but there will be less
motion tolerance. With the magnets
sweeping the side of the reed switch as
shown a clearance of about 3/16’’ is
usually right. If you are too close you
may get extra closures—one as the
magnet approaches, and one as it leaves.
Mounting Hole Sizes
– ¼” hole for reed
switches; 9/32” for access jack. Speaker depends upon type and location.
September 2020
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