This is NCE's lowest cost, easiest to use, cab bus panel. All four RJ-12 jacks are wired in parallel for easy plug and play use. This board also provides a convenient point to add additional 12 Volt cab bus power for long cable runs over 40 feet. Plug in a 2.5 mm / 5.5 mm 12 Volt DC "wall wart" power supply like the P114.
