Power connection ContentsSeaTalk NG power supplyYour product is supplied power via the SeaTalk NG backbone (or the NMEA 2000 backbone if applicable).SeaTalk NG power cablesThe following SeaTalk NG power cables can be used to connect the backbone to your chosen 12 V dc power supply:SeaTalk NG product loadingThe number of products that can be connected to a SeaTalk NG backbone depends on the current draw of each product and the physical length of the backbone cabling.SeaTalk NG power connection pointThe point along the backbone where the power connection should be made is based on the length of the backbone.SeaTalk NG system loadingThe maximum loading (LEN) for a SeaTalk NG system depends on the length of the backbone.Power distribution — SeaTalk NGRecommendations and best practice.Power connection via Autopilot Control Unit (ACU-Series)The SeaTalk NG backbone can be supplied 12 V dc power from a compatible Raymarine Autopilot Control Unit (ACU-Series).Previous topic: Cables and connections — General informationNext topic: Ground connection