The Iowa Scaled Engineering SimpleSig  Block Signal Pro Crossover Kit is complete solution for adding basic ABS-style block signals to single or double crossovers between two main signaled tracks. It includes everything you need - the main control board, four TrainSpotter optical sensors, and six ATOM DCC block detectors, along with plug-and-play cabling.  It's perfect for adding simple signaling to both home layouts and modules!

Features

• Complete ABS-style signaling solution for siding ends or other track junctions
  
• Compatible with Modular Signal System standards 1.x, 2.x, and (proposed) 3.x
• Controls four double-headed signals for a single or double crossover between two main tracks
• Powered from 8V to 24V DC, AC, or DCC power.
• Compatible with both common anode (positive) and common cathode (negative) signals
• Realistic signal fading during changes for both tri-light and searchlight style signals
• Supports both always-on signals and approach lighting
• Configurable signal aspects
• Simple plug-and-play compatibility with most Atlas HO and N scale signals
• Includes control board, six ATOM DCC block detectors, four TrainSpotter optical detector
• Detectors just plug into the main board with ten supplied 8ft cables - no fiddly terminal blocks!
  

Specifications

Size: 5.0"(L) x 5.5"(W) x 1"(H)
Power: 8 to 24 volts DC, AC, or DCC at 150mA (typical at 12V)
MSS Standard Compatibility: 1.x, 2.x, and (proposed) 3.x

Documents

The complete source files are available on Github for the firmware and the hardware (mss-xcade, ckt-bd1, and ckt-irsense).

User Manual