Deckbus: Marine Backbone

Deckbus plans an NMEA 2000 style instrument backbone before any cable is pulled. Enter your real devices with the LEN from their labels, place each tee and drop along the routed backbone, and Deckbus works out current, voltage, rule checks and a parts list for that network. POWER BUDGET THAT FOLLOWS THE CURRENT - 1 LEN = 50 mA; measured current is rounded up to whole LEN - Current in every backbone run, counting only the devices beyond it - Voltage at every tee and every device, including each drop cable - Light/Micro, Mid and Heavy/Mini cable profiles, or your own datasheet values - The installer-manual lumped method (R × distance × LEN × 0.1) shown side by side - Best power insertion point search, with one tap to move your power tee there 11 NMEA 2000 INSTALLATION CHECKS Two terminators, backbone length for the chosen cable, tees on the backbone, power position, drops of 6 m or less, 78 m total drop, 50 devices, cable current rating on each side of the power tee, 1.5 V maximum drop, 9 V minimum at every device, and a 9–16 V supply. Each check shows the value from your network that decided it. PARTS LIST AND EXPORTS - Device tees, power insertion tee and terminators counted from your network - Backbone runs between tees and drop cables, rounded up to common stock lengths - Share a PDF plan, a parts list CSV and a device table CSV YOUR NETWORKS, YOUR DEVICE - Unlimited saved networks: one per boat, or compare options - Full device editor; swipe to delete - Back up every network to one file in Files and restore it later - Built-in NMEA 2000 field guide: topology, terminators, LEN, cable classes, drop limits, voltage drop, power insertion, shielding and commissioning Everything is included in one purchase. No account, subscription, ads, analytics or tracking; networks are stored only on your device. Deckbus is a planning aid. Confirm LEN values, cable ratings, connectors, fusing, grounding and installation against your device manuals and a qualified marine electronics installer.