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Switch Synchronization:
1 - connect Common (C) of the switch to the White wire from the SYNC input.
2 - connect Normally Open (NO) of the switch to the Black wire from the SYNC input.
Switch closure should occur on peaks of quartering lobes. We recommend using optics since they
can switch much faster, don't bounce, and do not interfere with the mechanical operation of the
axle.
Item #707, as shown,
is a subminiature micro switch for this purpose, in lieu of using
optics (0.32"L X 0.1" W X 0.26" H).
Two switches are needed and have to be connected to "sync1" and "sync2" inputs.
You can also use other switch type contacts but DO NOT use a leaf switch to the chassis
(quartering lobe) this will damage the sound unit!
For extra 2 and 3 pin ultra-miniature connectors, see item's 757 and 758.
They are listed under Accessory Items / Connectors.
alternative lighting
1.25"w x 1"l x 0.35"h
Adjustable regulated output from 1.2 to 6 volts with 1/2 ampere of available output current. Input:
AC or DC to 30 volts! The regulator also consumes very little power, so it stays cool under load.
The VRS (item 378) is suitable for many applications: stationary lighting of building interiors,
outside lights, street lights, and marquees; Lighting passenger cars, cabooses; many other
applications. It is also LocoMatic™ compatible.
Consider installing our Adjustable Regulated Lighting board. The RL-ADJ (item 379) comes with
4 lamps but is capable of driving eight lamps, as shown. You can set the intensity desired (1.2 - 6
volts with 1/2 ampere of available output current). The RL-ADJ maintains constant voltage to the
lamps while requiring very little power to the regulator, something many other lighting systems
lack. It is also LocoMatic™ compatible. Simply install the lamps where desired, connect the input
power, and peel the tape to secure. The unit can be broken into smaller strip lengths where
needed. Install in cabooses, passenger cars, buildings or other locations. Measures only 1/2"
wide with a full 16" in total length. The power section of this lighting strip, when separated from
the rest of the strip would measure 1/2" x 2".
Extra, low voltage lamps, are available (item 383) as well as many other types of lamps. See our
catalog, web site, or price sheets for more selections.
Synchronization of Exhaust Chuff
For optical coupler (item #585) synchronization:
1 ...... connect Black and Green optical pickup wires together, this then connects to the Black wire
2 ...... connect Red optical pickup wire to the Red wire from the SYNC input.
3 ...... connect White optical pickup wire to the White wire from the SYNC input.
While shown for only "sync1", the second optical coupler needs to be connected in the same
manner for "sync2".
Engine Board
It is not necessary to use the black / white stripe pattern, anything that will come in and out of
focus to the optical reader will work! So, engines with cams installed or a piece of plastruct
rectangular tubing cut and glued to the axle may also work with proper alignment. Remember,
some paints and other type markers will still reflect the infr-red light. So, just because it's black
doesn't guarantee that it will work. The optical coupler comes with laser printed stripes.
Optical Coupler (hi-lighted for ease of viewing) glued to
frame 3/16" from optical end to pattern. In this
installation, the end mounting ears had to be trimmed
to obtain clearance to the drive gear box. When doing
so care must be used to not damage the optics.
Synchronized Chuff Patterns for AXLE READ, 4 chuffs per revolution. Mount optics inside
chassis and read driver axle. This is the ultimate location, when the drivers slip on the rails
the sound follows! Common axle diameters shown on page 9. Select appropriate one (or
make your own) and cut out. The long black strip shows total circumference of the axle
leaving 4 white stripes. The chuff starts on the black stripe and ends at the end of the white
stripe. For correct synchronization, place the center of the black stripe facing the optics
when a piston (main rod) is at the center of it's travel. If you prefer to paint the stripes, be
sure that the black paint is a flat finish. A gloss or semi-gloss will reflect as white / bare
metal. You can also read the high lobes of an existing cam.
8
from the SYNC input.
Focus Distance
1/8" - 3/16"
WHITE
GREEN
BLACK
RED
Optical pattern
mounted on
drive axle
apply a thin layer of glue on each
side to prevent oil from
contaminating the optical pattern.
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