Pulse Follower Adapter

This adapter lets a short power pulse set a Touch Toggle to green or red. The adapter senses a voltage in AC or DC (either polarity) between the center common terminal, and the red or green terminals. The brief external pulse of power can be from 5v to 24v, AC or DC. The inputs are fully isolated, so the pulse can be from low power occupancy sensors, or full track power, like Lionel Anti-Derail sections, or AC powered twin-coil switch motor circuits.

When there is no pulse the output can be manually operated by an attached Touch Toggle. The Toggle will always indicate the current output, whether the Toggle has been touched or not.

This can be used to:

  • Respond to track powered circuits. Create anti-derail type turnout controls,
  • Set up sensor tripped circuits. Operate signals and change turnouts that are thrown against oncoming trains.
  • Follow twin coil power pulses, to operate track power, signals, and semaphores.

When used for Anti-Derail third rail detection connect the common to PWR or + and the red and green leads to the isolated anti-derail rail sections.

When used with most electronic sensors connect the common to DC+ and the red and green to each sensor output.

When used to sense twin-coil pulses connect the three terminals to the three wires powering the turnout machine, with the common in the center.

A Touch Toggle is not required if the Pulse Follower is only needed for fully automatic operation.

Legal stuff: This product contains chemicals known to the state of California to cause cancer (lead). Unused or retired products should be recycled properly or may be returned to Berrett Hill for disposal in accordance with RoHS standards.

We manufacture our products in the USA. Orders over $140 include free shipping to US addresses.

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