IRDOT-2

The IRDOT-2 has a built in relay to provide single pole change-over relay contacts as well as the "train detected" LED for wiring to the control panel.The diagram shows that, with no train detected, the relay connects terminals 2 and 4.When detecting a train, the relay connects terminals 3 and 4. These contacts are electrically separate from the IRDOTs power and form a train-operated switch. The relay contacts can handle up to 2 amps of current.

Automatic Stop

The IRDOT-2 gives precise stopping of trains in hidden sidings.When the front of the train is detected, the relay breaks the electrical connection to the track.A push button switch ""on" when pressed" reconnects the power.The advantage of this, compared to using a dead section, is that the train stops when the front is detected by the IRDOT-2, and an LED is lit on the control panel to show the train's presence.The isolation section can be any length.The number of wheel pickups or whether the engine is at the front or rear of the train does not affect the stopping position.Wiring the LED to the control panel will show which loops and sidings hold trains.

An alternative to reed switches and magnets

The IRDOT-2 relay can replace reed switches.It will operate other electronic modules intended intended for reed switch operation.

Computer Interface

As the relay contacts are electrically isolated, it is safe to use them with computer interfaces.This allows a computer to "know" which tracks are empty and when a train has arrived.

Switching slow motion point motors

As slow motion point motors require a low current applied for a long time, they can be operated by the IRDOT-2. For very short trains and light engines etc., it may be necessary to stop over the IRDOT-2 to give sufficient time for the point to switch.

Specifications