Description
The Digitrax BXPA1 is the LocoNet DCC Auto-Reverser with Detection + Transponding + Power Management — an automatic reverser that handles polarity mismatches at a reversing section (return loop, wye, or balloon track) by instantly flipping the section's polarity when a train crosses the gap. No manual toggle switches, no shorted-out locomotives, no hand-tuned reversing routines.
- All-in-one: auto-reverser + occupancy detector + transponding detector + intelligent power manager
- Solid-state auto-reversing — no mechanical relays, silent
- Reports auto-reverse state, occupancy, and transponded loco IDs back to LocoNet
- Intelligent power management with adjustable trip current
- Communicates everything to LocoNet for signalling and dispatcher use
- Designed to make transponding installation straightforward
About Transponding: Transponding is a Digitrax extension to standard DCC occupancy detection — instead of just knowing that something is in a block, transponding lets the system know which specific locomotive is in each block. Requires transponder-equipped decoders (most modern Digitrax mobile decoders) plus transponding-capable detection modules like BXP88 / BXPA1.
About LocoNet: LocoNet is Digitrax's two-way control network that connects throttles, boosters, command stations, detection blocks, and signal modules across a layout — using standard 6-conductor RJ12 telephone cable. The two-way communication is what enables advanced features like transponding (knowing which loco is where), real-time slot status, and CV read-back from anywhere on the system.
About Digitrax: Digitrax is North America's leading manufacturer of DCC systems and has been the architect of the DCC standard since the 1990s. The proprietary LocoNet control bus is the most widely-supported throttle and accessory interface in club layouts worldwide, and Digitrax decoders / boosters / command stations are fully NMRA DCC compliant and interoperable with all NMRA-compliant DCC equipment.
In stock at Oakville Model Trains Depot.

