REV2 AUTOREVERSER DC & DCC WITH POINTS CONTROL.
When you want to add a loop to the end of a track, you are left with a problem - as the train leaves the loop to return to the main line the polarity of the main line is incorrect.
If you are operating the layout manually, you can set the points and flip the polarity of the main line and the loco will happily continue.
If you forget either action derailments and shorts can result.
The REV2 autoreverser automates this task, so the points are always aligned with the approaching train,
and the polarity on the main line is automatically set to suit (whether using DC or DCC).
The result is the there is nothing to switch (or forget) and the layout just looks after itself.
Single Loop Operation
Infra-red sensors are used to detect when the train approaches the points and automatically set the points and track polarity to suit the approaching locomotive.
In the diagram below, the train enters the loop and travels over sensor 1.
The module senses the train passing over the sensor and sets the points to the mainline (as they are already aligned with the main line, they don't move).
The loco continues around the loop (or it can stop and return to the main line if you wish, passing back over sensor 1).
If it contrinues around the loop, when it reaches sensor 2, the module operates the points motor to set the points to diverging and also swaps the polarity,
of the main line so the loco can continue the journey exiting the loop back to the main line.
Each time the train enters the loop, it will alternate the direction of travel.
Insulated rail joiners are used as there will be occasions when the track polarities do not match.
With a single loop, the train does not have to complete travelling around the loop, it can be reversed and leave from the same way it entered.
On DCC layouts, several trains can enter the loop, and depart in either direction as long as care is taken only driving one train out of or in to the loop at a time.
Double Loop Operation
The module can also automate layouts with loops at both ends.
In this case, one sensor is installed on each loop and the locomotives always travel around the loops in the same direction.
You can alter this direction by swapping the wiring of the points motors and repositioning the sensors.
Power Supply
The module operates from a 12V DC supply (recommended capacity 0.5A or greater).
Please check all wiring carefully before turning on the power to prevent damage to the module.
PLEASE SEE PDF FILE FOR MORE INFORMATION.