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Yacht Devices - NMEA 2000 bridge, for connecting multiple NMEA 2000 networks
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YACHT DEVICES YDNB-07N, is a bridge to unite several physical networks into one. The device can also filter and process sent messages.

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Article number: YDNB-07N
EAN: 4779045210311
Manufacturer: Yacht Devices

YACHT DEVICES YDNB-07N, is a bridge to unite several physical networks into one. The device can also filter and process sent messages. 

This solves the following:

  • Bypass the physical limitations of an NMEA 2000 network (100 meters backbone cable, 72 meters drop cable, and 50 devices per NMEA 2000 network). Up to 5 separate sub-networks can be combined into one large network.

  • Isolate devices from each other. By using a simple filter, it is possible to block parts or all messages from one device in another sub-network.

  • Ensure equipment works well. It is possible to correct offset values on depth sensors or remove certain messages that may interfere with others.

  • Ensure increased compatibility between different generations. It is possible to create and send any NMEA 2000 message from other messages in the network.

  • Diagnose errors. The device can record messages on a MicroSD card. You can view the data in a standard text editor.

  • Free diagnostic software included for Windows, Mac OS X, and Linux. It can also play, view, and convert binary log files.

  • Securely connect products not certified for NMEA 2000. One of the ports has galvanic isolation and also works with higher voltage supply.

  • Create gateways for networks based on CAN protocol at 250 kbps. For example, it is possible to create a gateway for J1939 to NMEA 2000.


The bridge can compile programs with a simple programming language. You can create a program on any device and transfer the file to a MicroSD card. The program can save all NMEA 2000 messages and variables in a text file on a MicroSD card. The bridge can also save all messages from both connections (CAN1 and CAN2) in a binary log file (.CAN format) that can be opened, viewed, and converted with the free CAN Log Viewer program. This can be valuable for troubleshooting and diagnostics.

Programming the bridge requires knowledge of NMEA 2000. A copy of the NMEA 2000 standard can be purchased from NMEA, National Marine Electronics Association, www.nmea.org.

The cable between the two interfaces is 50 cm. Power consumption for CAN1 is 38 mA (LEN1) and for CAN2 is 13 mA (LEN1).

NOTE! YDNB-07 must have the correct configuration to function. A configuration file, YDNB.CFG, is copied to a microSD card (not included), placed in YDEG-NB, and then loaded. The text in the file controls which data should be bridged between the different NMEA networks. See the example file below which transfers all messages in all directions. Read more in the manual on how to create the configuration file.


YDNB-07 is available in two versions:

  • YDNB-07N for NMEA 2000.
  • YDNB-07R for SeaTalkNG.


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