The NEPTUNE scientific submarine cable system will "wire" the Juan de Fuca tectonic plate and turn it into an interactive ocean sciences laboratory. NEPTUNE will provide 30 seafloor nodes distributed over a 500 by 1000 km area to which many scientific instruments may be attached. The NEPTUNE backbone communications system will be based on commercial off-the-shelf Gigabit Ethernet components packaged as ocean bottom communications modules. This paper describes the requirements and technological alternatives that lead to this choice. In addition to the high speed communications needs, separate low-speed channels are required for out-of-band management and the distribution of high accuracy, low jitter time information. A proposed design that meets these two functions is presented. Finally, NEPTUNE instrument communications will be based on slow/fast Ethernet, and a Scientific Instrument Interface Module (SIIM) will be provided to facilitate connection.
展开▼
机译:海王星科学潜艇电缆系统将“丝”Juan de Fuca构造板,将其变成互动海洋科学实验室。海王星将提供30次分布在500多个区域的海底节点1000公里区域,可以附加许多科学仪器。海王星骨干通信系统将基于被包装为海底通信模块的商业现货千兆以太网组件。本文介绍了导致此选择的要求和技术替代方案。除高速通信需求外,还需要单独的低速通道供带外管理和高精度的分布,低抖动时间信息。提出了符合这两个功能的建议设计。最后,海王星仪器通信将基于缓慢/快速以太网,并提供科学仪器接口模块(SIIM)以便于连接。
展开▼