IEC 61162-3-2008 海上导航和无线电通信设备及系统.数字接口.第3部分:串联数据设备网络

标准号：IEC 61162-3-2008
中文标准名称：海上导航和无线电通信设备及系统.数字接口.第3部分:串联数据设备网络
英文标准名称：Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 3: Serial data instrument network
标准类型：U60
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：U60
国际标准分类号：47.020.70
引用标准：IEC 60945;ISO 11783;ISO 11783-3;ISO 117835-2001;NMEA 2000 Main document;NMEA 2000 Appendix A;NMEA 2000 Appendix B;NMEA 2000 Appendix C;NMEA 2000 Appendix D;IMO 1974
适用范围：This part of IEC 61162 is based upon the NMEA 2000 standard. The NMEA 2000 standardcontains the requirements for the minimum implementation of a serial-data communicationsnetwork to interconnect marine electronic equipment onboard vessels. Equipment designed tothis standard will have the ability to share data, including commands and status, with othercompatible equipment over a single signalling channel.Data messages are transmitted as a series of data frames, each with robust error checkconfirmed frame delivery and guaranteed latency times. As the actual data content of a dataframe is at best 50 % of the transmitted bits, this standard is primarily intended to supportrelatively brief data messages, which may be periodic, transmitted as needed, or on-demandby use of query commands. Typical data includes discrete parameters such as positionlatitude and longitude, GPS status values, steering commands to autopilots, finite parameterlists such as waypoints, and moderately sized blocks of data such as electronic chartdatabase updates. This standard is not necessarily intended to support high-bandwidthapplications such as radar, electronic chart or other video data, or other intensive database orfile transfer applications.This standard defines all of the pertinent layers of the International Standards OrganisationOpen Systems Interconnect (ISO/OSI) model, from the application layer to the physical layer,necessary to implement the required IEC 61162-3 network functionality.This standard defines data formats, network protocol, and the minimum physical layernecessary for devices to interface. SOLAS applications shall employ redundant designs (forinstance dual networks, redundant network interface circuits) to reduce the impact of singlepoint failures. The NMEA 2000 standard provides the fundamental tools and methods tosupport redundant equipment, buses and messaging. Specific shipboard installation designsare beyond the scope of this standard, however some guidance is given in Annex A.