open source | open hardware | open data
Fig.: Ctrec C-Net 2000
C-Net 2000 was developed by Cetrek for marine devices. It uses the CAN bus at the lowest physical level, but does not use any higher level implementation of CAN. C-Net 2000 is therefore a proprietary protocol that only works with Cetrek devices. Many Cetrek display devices include a gateway for NMEA0183 and C-Net 2000 so that data can be exchanged between the networks.… Continue reading
Fig.: SimNet connection technology
SimNet is a bus system for boats from Simrad, which is based on the CAN bus and has limited compatibility with NMEA2000, comparable to Raymarine's SeaTalk NG. With SimNet, Simrad also relies on proprietary connection technology that is only compatible with Simrad products. Physically, 5-pin connectors are used as in NMEA2000, but in a different format.… Continue reading
Fig.: Masttop transducer T120 (Raymarine)
MicroNet is a wireless sensor data transmission method supported by some Raymarine sensors and displays, such as the T120 masthead wind transducer and the Log + Echosounder system in conjunction with the Marine TackTick T100 display. Raymarine also offers a gateway called Micro-Talk that can convert data from the wireless MicroNet to SeaTalk NG.… Continue reading
RayNet is an Ethernet protocol and connector standard developed by Raymarine to connect high data volume systems. This includes systems such as plotters, cameras, radar devices, controllers for autopilots and some other systems. Raynet uses an Ethernet connection with a transmission rate of 10/100/1000 Mbit/s, which enables fast transmission of data and high-resolution video transmission in real time.
Fig.: SeaTalk NG connection technology
With SeaTalk NG there is a more powerful successor to SeaTalk, which is based on the CAN bus and has limited compatibility with NMEA2000. With the fairly clear and color-coded connection technology of SeaTalk NG, Raymarine has managed to provide backwards compatibility with SeaTalk, which also supports older devices. The disadvantage, however, is the high price for the proprietary connection technology.… Continue reading
Fig.: SeaTalk connection technology
SeaTalk is a Raymarine proprietary serial network protocol developed in the 1980's and used for the transmission of navigation data and other information on boats. The data is transmitted as compact binary data. SeaTalk uses a single wire connection as the data line for serial data transmission, meaning they are both sent and received bit by bit over a single wire.… Continue reading
NMEA OneNet is a transmission method based on Ethernet. With NMEA OneNet, as the name suggests, an attempt is made to bundle a wide variety of transmission methods such as NMEA0183 and NMEA2000 in one protocol and thus maintain compatibility with old transmission methods. In addition, new protocols are added with which large amounts of data such as image and map transmission are also possible.
Fig.: NMEA2000 connection technology (Busse yacht shop)
NMEA2000 (National Marine Electronics Association 2000) is a bus system for communication in boats. It was designed to provide a uniform interface for transferring data from electronic devices on boats.
NMEA2000 is a bus system designed to transmit data between electronic devices on boats.… Continue reading
NMEA 0183 is a marine serial communications standard. It defines a format for the transmission of GPS information, speed and course data, and other navigation data between navigation devices and other electronic devices on boats.
Benefits of NMEA 0183:
First of all, a few important notes that you should definitely pay attention to.
Fig.: NASA/Clipper Duet Sonar/Log
This article is about how to convert a NASA/Clipper Duet echo sounder/log so that the device outputs NMEA2000 data. This document is based on the DIY project by Sönke and was supplemented with some additional information. The NASA/Clipper Duet echo sounder/log is actually a device without a bus connection and works independently with two separate sensors.… Continue reading