The NMEA 2000 standard specifies that up to 50 devices can be connected to a single NMEA 2000 network. However, the actual number of devices that can be connected to a network may depend on several factors, such as the length of cable runs, the number of connectors, the type of devices, and the power requirements of the devices.
It is important to note that devices on an NMEA 2000 network are organized in a hierarchical structure, with the backbone cable serving as the main communication channel. The maximum length of the backbone cable is 78 feet (24 meters), and additional cable lengths can be added using junction boxes and drop cables. However, the total length of the network, including all cable runs and connectors, should not exceed 200 meters (656 feet).
To ensure proper operation and compatibility, it is recommended to consult the documentation and guidelines provided by the NMEA and the manufacturers of the devices being used.
