Cost-effective occupancy detection for 16 detection sections. Add one or two RX4 Transponder Receivers (sold separately) and you can have Transponding in 8 zones. This means that you’ll know when a detection section is occupied and the unique ID of all transponders in that section. Ops Mode Read Back lets you read back CV Values on any section of track that is set up for transponding with BDL168 and one or more RX4s. Unit also includes outputs for panel-mounted LEDs to display local occupancy and power zone status. Detects any powered loco, and unpowered rolling stock equipped with resistor wheelsets. Simply connect to LocoNet to transmit occupancy information to your LocoNet System.