Specifications
Make your intersection come alive with the GRADE
CROSSING CONTROLLER with BELL sound. This
unit features full synchronization of the crossbuck
lights and a true bell sound with four user selectable
speeds including either simultaneous or delayed bell.
The GRADE CROSSING CONTROLLER with BELL
sound can be turned on automatically with it's unique
built in current sense detection circuitry or manually
with a switch. For precise operation, you can use our
OPTO-DT to activate the switch input or a
combination of the TRAK-DT and TRAK-DTT. The
GRADE CROSSING CONTROLLER with BELL
sound features four outputs. Two outputs for your
crossbuck lamps or LED's. The other two outputs are
to drive a coil or relay for crossing gate operation and
an additional output simulates a warming fire in a can
or stove for the gate operator. The later two outputs
can also be switched to momentary drives for
activation of a twin coil solenoid, if that is what you
have elected to use to drive your gates. For better
realism we suggest using a slow motion switch
33
Item #587
GRADE CROSSING CONTROLLER
with BELL SOUND
machine. This also requires the use of item #555 to
reverse the power to the slow motion, polarity
reversing, switch machine. A volume control is
provided on the main board with a three inch speaker
included with the unit. The GRADE CROSSING
CONTROLLER with BELL sound is completely
assembled, except for the speaker wiring and
enclosure, on a 5.75 X 2.75 inch circuit board which
has standoffs at the four corners for easy mounting.
Wiring for the automatic detection circuit is
accomplished by insulating a section of rail with gaps,
fibre pins, or plastic rail joiners. In three rail
applications it is suggested that the center rail be
used for simplicity. This insulated rail section is now
electrically dead and must receive power from an
additional wire attached to the power source or to the
adjacent rail sections. This additional wire must be
passed through the hole in the "SENSE COIL" before
being attached to the insulated rail section. Input
power can be from 12 to 20 volts AC or DC. Item 690,
page 52, is an ideal power transformer to use.