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.
We offer three “Follower” versions
- The Pulse Follower Adapter has isolated inputs for externally powered pulses, protecting the circuit from any different voltages. Three terminals, red, green, and common, may be connected to power from detectors or AC track isolated rails. The adapter will also respond to any brief pulse used to operate any twin-coil switch machine, or other AC or DC pulsed voltage from 5v to 24v.
- The Sensor Follower is a 5v logic adapter that has two three pin sensor inputs, to work with block detectors, unpowered contacts, or logic or TTL inputs. Our Momentary Touch controls, most occupancy detectors, and Arduino boards can be used as inputs. The 3-pin connectors match our Toggle connectors which have a sensor pin, 5v pin, and Ground pin. We offer tinned wire pigtails with a 3-pin socket to help wire the Sensor Follower to your own contacts, occupancy detectors, or circuits.
- The Reverse Follower Adapter is activated by a change in polarity in a circuit from any auto-reverser. Since an auto-reverser detects a train crossing one of two breaks in the track, the triggered change can be used to anticipate the train entering from either leg of a turnout. The normally manually operated Touch Toggle is automatically thrown to anticipate the arrival of a train. The Reverse Follower Adapter is fully described on it’s own page.
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.