A complete two block signaling module that includes the signals, train sensors and block detectors. Available in kit form or pre-wired and ready to operate, just install it and hook up power (12 or 24 VDC). Use this module to signal long stretches of single track railroad.

Detects trains entering and leaving the block with sealed magnetic sensors that you mount on your ties. Fully supports the included SL1/3 3 aspect searchlight signals to include the remote yellow aspect (train in adjacent block). Supports backing moves. All components are fully waterproof and designed for 24x7 operation. Includes two magnets (enough for one train).
Blocks are available in lengths of between 10 and 50 feet (select in options, each block may be up to 50 feet) and comes with a pre-wired backbone cable that interconnects all the components. All you have to do to install the package is to mount the signals, press the train sensors into the inside of your tie, mount the track side relay box and connect up power. The package is also available in kit form, you will need to hook the components to the block buss cables with solder free snap connectors. The package can run off track power (constant DC or DCC) or a separate DC supply.
This package will signal two full blocks of railroad (between 20 and 100 feet) .
The module includes interconnects on both ends to allow you to connect it to any other IPTrains block signaling or interlocking module. Power may be shared between modules to simplify wiring. The diagram below shows the internal wiring of the module including train sensors, the block detector module and the signals. All of that wiring is done for you in the RTR version.

Sensor options include our standard in tie train sensor or our highly sensitive bar double sensor. The double bar sensor include both the red and the green sensor in one waterproof package and may be mounted on the ties to the right of the rail or below grade beneath the right rail.
Not sure which train sensor to use? Read about train sensor technical details here.
For detailed technical information on our Block Modules please visit our technical support web site Block modules product page.
Concerned about assembling the kit version of this module? Read about assembling block module kits here.
You supply the track and the train, we supply the rest! This is a special order item and requires 5 business days for fabrication.
- Made in the USA:
- What is it?: Two blocks, kit or fully assembled and wired, RTR
- Compatible with: Any form of train contol and power including battery
- Includes: 4 SL1/3 signals, 8 train sensors, two block detectors with line side mounting box and all wiring
- Power: 12 or 24V, AC/DC or DCC
- Skill level: Pre-wired plug and play or connector based kit
- Supports: Bi-directional train operation including backing moves
- Lead time: 5 business days
- Item #: BKL2
