MTH Operating Crossing Gate Signal, 30-11012
The RailKing 30-11012 O-scale crossing signals have operating gates and are designed for O-gauge 3-rail layouts. They also look good with American Flyer S-gauge trains.
These signals have the gate operating motor and flasher circuit built into the base. The signal mounts on top of the layout surface and is very easy to install.
This diagram shows how to wire the crossing gates to an Azatrax MRD6-X HexDetex. The Azatrax system provides realistic operation of the signals for trains operating in both directions on the track.
The HexDetex monitors up to six infrared train detectors which can be hidden in the track roadbed. When the controller senses an approaching train, it operates a relay, such as an MRAPR relay, that switches power to the signal to make the gates go up and down.
Two or more MRD6-X units can be connected to the relay to protect multiple tracks at the same crossing.
How many sensors do I need, and where should I put them? It depends on how your trains will operate near the crossing and how you want the signals to respond. See the HexDetex installation instructions to get started.
The power supply must be DC because the MRD6X has a transistor switch connected between terminals 'B' and 'C'.
If a detector with a relay contact is used instead of the MRD6X (such as our MRD1, MRD2 or MRD8) then the accessory power may be AC or DC.
For simple 2-sensor operation use a D2T-Xing controller. The D2T-Xing circuit will work with AC or DC accessory power.
Click here for the D2T-Xing installation guide [pdf].
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