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1.3 NBE100 Application
The NBE100 can be applied, not only anytime a NMEA 2000® bus needs extending, but also
can be used to make only specific communication messaging to be passed between
NMEA2000® busses possible. Apply the PGN (Parameter Group Number) Pass Filter and the
NBE100 will allow only the desired PGN messages to be passed between the connected
NMEA2000® buses. Because NBE100 features a pass filter for each of the two NMEA2000®
Interfaces it has, Pass Filters will obtain and forward the specific information messages you
desire from one bus onto the other or vice versa. This feature is great for reducing
unnecessary traffic but still share data without physically combining busses. The NBE100
allows up to 32 "Pass" PGNs per filter.
For an example of when NBE100 pass filtering is necessary, suppose there is a vessel with
two separate NMEA2000® buses. One Bus is for used for "Navigation Devices" and the other
bus is used for the vessel's Distributed Power System. The Distributed Power System has a
Time display feature, the Time feature is set manually however, has the ability to update it's
Time via NMEA2000® message. Because the Distributed Power System's NMEA2000®
network does not have any devices with updated Time messaging the Time display does not
update automatically when the vessel crosses time zones. Separately, the Distributed Power
System only sends alerts within its own NMEA2000® network and would be beneficial if these
messages could be shared to the "Navigation Devices" NMEA2000® network giving the ability
to acknowledge Distributed Power System alerts using the vessel's navigation display that is
attached to the "Navigation Devices" NMEA2000® network. An NBE100 is applied to this
vessel to connect the Distributed Power System's NMEA2000® network and the "Navigation
Devices" NMEA2000® network. Using the NBE100 Pass Filter, the Distributed Power System
can get updated Time information from the "Navigation Devices" NMEA2000® network and the
"Navigation Devices" NMEA2000® network can receive Distributed Power System alerts. The
vessel's captain can now acknowledge the Distributed Power Systems alerts while underway
using the vessel's navigation display. The NBE100 provides such a solution with only
necessary bus traffic messaging being passed.
Please note that the NBE100 will not filter and always pass ISO Address Claim, Request, and
Acknowledgement messages, as well as Product Information allowing for "visibility" of all
devices connected to the two NMEA2000® networks as if they were one.
2 Installation
2.1 Unpacking the Box
When unpacking the box containing the Maretron NBE100, you should find the following items:
1 – NBE100 – Network Bus Extender
1 – Parts Bag containing 4 Stainless Steel Mounting Screws
1 – NBE100 User's Manual
1 – Warranty Registration Card
If any of these items are missing or damaged, please contact Maretron.
NBE100 User's Manual Rev.1.2
2
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