Figure 2 - Nmea 2000 ® Connector Face Views - Maretron NBE100 User Manual

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and keyway on the female connector). Be sure the cable is connected securely and that the
collar on the cable connector is tightened firmly. Connect the other end of the cable (male) to
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the NMEA 2000 network in the same manner. The NBE100 is designed such that you can plug
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or unplug it from an NMEA 2000 network while the power to the network is connected or
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disconnected. Please follow recommended practices for installing NMEA 2000 network
products.
Figure 2 – NMEA 2000
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Connector Face Views
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The NBE100 is installed on an NMEA 2000 network between the two sections that you wish
to physically isolate. Because the port on the NBE100 are optically isolated, there is no
electrical connection through the NBE100, so you must ensure that each of the two NMEA
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2000 networks connected to the NBE100 have separate power sources and two termination
resistors. This means that if you use an NBE100 to split an existing network into two separate
networks, you must provide one additional power connection and two additional termination
resistors (one for each side of the NBE100).
connectors are labeled "N2K PORT A(PWR)" and "N2K PORT B".
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The two NMEA 2000
Logically, these connectors are identical; that is, you can connect the NBE100 between two
networks in either way and it will function identically. However, the NBE100 sources power
only from the connector marked "N2K PORT A(PWR)". It uses no power from the connector
labeled "N2K PORT B".
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Figure 3 below shows the installation of an NBE100 into a simple NMEA 2000 network.
For exceptionally large networks, multiple NBE100's may be used to segment the network into
more than two segments. Each segment must have its power connection and two termination
resistors.
NBE100 User's Manual Rev.1.2
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