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Introduction
Yacht Devices NMEA Bridge unies two physical NMEA 2000 networks into a single logical network,
smoothly exchanging messages between them. The Device also supports ltering and processing
of transmitted messages.
This can accomplish the following tasks:
1. Bypass the physical limits of NMEA 2000 networks concerning length of networks
(100 meters for regular cable and 250 meters for heavy or mid-type cable) and concerning
the maximum number (50) of physical devices attached to the network. On a network with
address capacity of 252, multiple bridges can be engaged to expand to around 250 physical devices.
2. Isolate devices from each other. Using the simple lter, you can block transmission of all
or of selected messages from a given device in a separate subnet.
3. Ensure proper functioning of equipment. Correct the transducer offset of the depth sounder,
or “delete” invalid data in messages from equipment that is only partially operational using
a 2- or 3-line script.
4. To ensure compatibility of equipment from different generations. You can create
and send any type of NMEA 2000 message using data from other messages in the network.
5. Diagnose malfunctions in the NMEA 2000 network. The Device can record network
messages and debug data from custom programs on a MicroSD card in a text le. You can view
the data in a standard text editor on a smartphone or tablet with a MicroSD slot, there is no need
for a computer. You can even create and edit programs for the Device right on your phone!
6. Safely connect devices that do not meet NMEA 2000 standards. One of the CAN-interfaces
on the device has high-voltage galvanic isolation and can operate at a higher supply voltage.
7. Create gateways for networks based on CAN protocol operating at a speed from 50 kbps
to 1000 kbps. The programming language of the device is not designed for full-edged applications,
but one can create, for example, a gateway from a J1939 network to NMEA 2000.
