The National Marine Electronics Association (NMEA) is a US-based marine electronics

trade organization A trade association, also known as an industry trade group, business association, sector association or industry body, is an organization founded and funded by businesses that operate in a specific Industry (economics), industry. Through collabor ...

setting standards of communication between

marine electronics Marine electronics refers to electronics devices designed and classed for use in the marine (ocean), marine environment on board ships and yachts where even a small amount of salt water can destroy some electronics devices. Therefore, the majority o ...

Standards

NMEA 0183

NMEA 2000

NMEA OneNet

NMEA OneNet is the latest standard for

maritime Maritime may refer to: Geography * Maritime Alps, a mountain range in the southwestern part of the Alps * Maritime Region, a region in Togo * Maritime Southeast Asia * The Maritimes, the Canadian provinces of Nova Scotia, New Brunswick, and Princ ...

data networking based on 802.3 Ethernet, and will complement existing onboard

NMEA 2000 NMEA 2000, abbreviated to NMEA2k or N2K and standardized as IEC 61162, IEC 61162-3, is a plug-and-play communications standard used for connecting marine Sensor, sensors and display Unit of measurement, units within ships and boats. Communication ...

networks by allowing for high-capacity data transfers. Current maritime data networks have

bandwidth Bandwidth commonly refers to: * Bandwidth (signal processing) or ''analog bandwidth'', ''frequency bandwidth'', or ''radio bandwidth'', a measure of the width of a frequency range * Bandwidth (computing), the rate of data transfer, bit rate or thr ...

capacities of less than 1 Mbit/s. Building on Ethernet, OneNet allows for capacity in the hundreds or thousands of megabits per second. This extra bandwidth is needed for transferring unprocessed sensor data from

sonar Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects o ...

radars Radar is a system that uses radio waves to determine the distance ('' ranging''), direction (azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track aircr ...

, as well as video feeds from for example an engine room. The primary features and goals of OneNet are as follows: * NMEA 2000 data transfer over

IPv6 Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communication protocol, communications protocol that provides an identification and location system for computers on networks and routes traffic ...

in a standard format * High-bandwidth applications such as radar, video and more that are not possible via NMEA 2000 * Support Ethernet and TCP/IP at 1 gigabit and faster speeds * Power devices via

Power over Ethernet Power over Ethernet (PoE) describes any of several technical standard, standards or ad hoc systems that pass electric power along with data on twisted-pair Ethernet cabling. This allows a single cable to provide both a data connection and en ...

* Utilize standardized connectors (

RJ-45 A modular connector is a type of electrical connector for cords and cables of electronic devices and appliances, such as in computer networking, telecommunication equipment, and audio headsets. Modular connectors were originally developed for ...

and X-Coded M12) depending on installation * Robust, industry-standard cybersecurity requirements *

gateway compatibility * Mandatory device & application certification by the manufacturer, then verified by NMEA The use of the X-Coded M12 connector allows for up to

10 Gigabit Ethernet 10 Gigabit Ethernet (abbreviated 10GE, 10GbE, or 10 GigE) is a group of computer networking technologies for transmitting Ethernet frames at a rate of 10 gigabits per second. It was first defined by the IEEE 802.3ae-2002 standard. Unlik ...

, but the full capabilities do not have to be utilized, and would also depend on the cabling that is installed.

References

External links

* Business organizations based in the United States Maritime organizations {{shipbuilding-stub