The OOI cabled observatory (Regional Cabled Array) provides high power (10 kV, 8kW) and bandwidth to >>100 instruments on the seafloor and throughout the water column at key study sites: Southern Hydrate Ridge, Axial Seamount, and the Endurance Array Newport Line. Power and bandwidth are distributed from the cables through a total of seven Primary Nodes: two each at Hydrate Ridge, Axial Seamount, and on the Newport Line. The Mid-Plate node in the middle of the Juan de Fuca plate is a placeholder node with minimal internal electronics yet available for future network expansion.
