DBD2, Dual Block Occupancy Detector for DCC

* Senses current flow to two track blocks.

* Sensitive enough to detect one 10k ohm resistor.

* Separate solid state relay output (SPDT) for each block,

    * Now with Normally Open and Normally Closed contacts for both blocks, very easy to connect green/red block occupancy signals.

    * Complete electrical isolation

    * Maximum system compatibility

    * Solid state relays are 'bounce-free'

    * Each relay can switch up to 350 milliamps (0.35 amp) AC or DC.

* Current-sensing coils cause no voltage loss to the track.

    * Sense coils can be placed up to 12 ft (4 m) from the circuit board, right at the power feed to the track block.

    * No need to re-route your track wiring.

* Separate sensitivity adjustment for each block.

* On-board LEDs for easy setup.

* Power required: 9 to 16 volts AC or DC, 25 milliamps.
The DCC bus may be used as a power source if less than 17 volts.                               

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