Garmin NMEA 2000 User Manual

TECHNICAL REFERENCE FOR GARMIN
®
NMEA 2000
®
PRODUCTS
NMEA 2000 Network Fundamentals
This technical reference provides basic NMEA 2000 component identification (NMEA 2000 Components,
page 2), basic NMEA 2000 network-building instructions (NMEA 2000 Network Planning and Construction,
page 4), and a list of NMEA 2000 data that may be used by some Garmin NMEA 2000 certified devices
(General NMEA 2000 Data Types, page 12).
What is NMEA 2000?
NMEA 2000 is a plug-and-play communications standard used for connecting marine sensors and display
devices within ships and boats, and is considered the successor to the NMEA
®
0183 serial data bus standard.
You can learn more about NMEA 2000 and purchase the NMEA 2000 standard documentation at nmea.org
/content/STANDARDS/NMEA_2000.
Garmin uses NMEA 2000 micro connectors on devices, sensors, and T-connectors that are compatible with
other NMEA 2000 micro connectors, cables, and NMEA 2000 compatible devices.
GUID-1415AAD0-FE63-42A6-8F8D-DB713D616122 v1September 2021

Garmin NMEA 2000 Specifications

General

Network Type	NMEA 2000
Data Rate	250 Kbps
Compatibility	NMEA 2000 certified devices
Power Supply	NMEA 2000
Operating Voltage	9-16 V DC
Water Rating	IPX7

Summary

NMEA 2000 Network Fundamentals

What is NMEA 2000?

Explains NMEA 2000 as a plug-and-play standard for marine sensors and displays.

NMEA 2000 Components

NMEA 2000 Glossary

NMEA 2000 Network Planning and Construction

Linear Backbone Construction

Power Connection Considerations

Power Distribution and Balance

Power Isolation

Network Termination

NMEA 2000 Cable Length and Device Limitations

Considerations for Existing NMEA 2000 Networks

General NMEA 2000 Data Types