Maretron NETWORK BUS EXTENDER NBE100 Bedienungsanleitung PDF herunterladen (Seite 5)

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Revision 1.0 Page 1

1 Introduction

Congratulations on your purchase of the Maretron Network Bus Extender. Maretron has

designed and built your NBE100 to the highest standards for years of dependable and

accurate service.

Maretron's NBE100 (Network Bus Extender) allows you to extend the maximum node count,

network trunk length and cumulative drop length of any NMEA 2000

network. The NBE100

solves bus errors and other electrical issues caused by exceeding any of these limitations and

makes design of large networks easier. NMEA 2000

networks have a maximum of 50 nodes

allowed on a single network, a maximum network trunk length of 200m and a maximum

cumulative drop length of 78m. If you have a network that exceeds any of these specifications,

you can simply disconnect the network trunk in the middle and connect the ends to the

NBE100, along with additional termination resistors. This will split the network into two

electrical segments, each of which can have up to 50 nodes, for a total of 100 nodes on the

logical network. The NBE100 will transparently route NMEA 2000

messages between the two

network segments, making them work as a single logical NMEA 2000

network. Advanced

priority-based message routing ensures that higher-priority messages are always prioritized

over lower-priority messages, enabling predictable and reliable network operation.

For exceptionally large networks, multiple NBE100’s may be used.

1.1 Firmware Revision

This manual corresponds to NBE100 firmware revision 1.0.0.

1.2 NBE100 Features

The Maretron NBE100 has the following features.

• Segments a single large NMEA 2000

network into two smaller electrical segments.

• Allows you to exceed the 50 node limitation on a NMEA 2000

network.

• Allows you to exceed the 200m trunk length limitation on a NMEA 2000

network.

• Allows you to exceed the 78m cumulative drop length limitation on a NMEA 2000

networks.

• Allows all NMEA 2000 devices to operate as if they were still on a single NMEA 2000

network.

• Priority-based message routing ensures higher-priority messages get through the bus

extender first.

• Optically isolates network segments, increasing signal integrity and network reliability.

1.3 NBE100 Accessories

Maretron offers the following accessories for the NBE100:

• None

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