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NMEA 2000
The NMEA 2000 data port allows receiving and sharing of a multitude of data from various
sources.
Connector details
Unit socket (male)
5
Pin Purpose
1 Shield
2 NET-S (+ 12 V DC)
3 NET-C (DC negative)
4 NET-H
5 NET-L
Plan and install an NMEA 2000 network
An NMEA 2000 network consists of a powered backbone from which drop cables connect to
NMEA 2000 devices. The backbone needs to run within 6 m (20 ft) of the locations of all products
to be connected, typically in a bow to stern layout.
The following guidelines apply:
• The total length of the backbone should not exceed 100 meters (328 ft).
• A single drop cable has a maximum length of 6 meters (20 ft). The total length of all drop
cables combined should not exceed 78 meters (256 ft).
• A terminator must be installed at each end of the backbone. The terminator can be a
terminator plug or a unit with a built-in terminator.
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