Planning And Installing A Simnet Backbone; Power The Simnet Network - B & G B&G User Manual

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Planning and Installing a SimNet Backbone

Plan the SimNet backbone carefully
For part numbers refer to SimNet Accessories.
The SimNet backbone needs to run between the locations of all SimNet products you
want to install, and be less than a 5.5 m (18 ft) cable run from a SimNet device.
Choose from the following components to make up your SimNet backbone
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Power the SimNet Network

A SimNet network requires its own 12 V DC power supply protected by a 5 amp fuse or
breaker. For 24 V use a DC-DC converter
Connect power at one end of the backbone for smaller systems using a SimNet power
cable with termination (red cap).
For larger systems introduce power at central point in the backbone to "balance"
the voltage drop of the network. Use SimNet cable without termination (yellow cap)
(24005910) (See system drawings following)
If joining to an existing NMEA2000 network or similar CAN bus network that has it's own
power supply, do not connect to another power supply.
Do not connect the SimNet power cable to the same terminals as the start batteries,
Autopilot Computer, Radar, thruster or other high current products
The following drawing shows a small SimNet network. Power is introduced at one
end using a SimNet power cable with termination ending with a second terminator.
26 | Wiring the Zeus Display
NMEA2000 devices can be connected to the SimNet Network providing they:
are NMEA2000 certified
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meet the CE, FCC regulations with a SimNet adapter cable
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do not exceed the SimNet load specification (please refer to separate document
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B&G SimNet Installation Manual (20222006)
SimNet cables: 0.3 m (1 ft), 2 m (6,6 ft), 5 m (16.6 ft), and 10 m (33 ft) cables
SimNet power cables with or without termination
SimNet in-line joiner with or without termination
T-Joiner. Use at locations where you want to connect a single SimNet device or join
lengths of SimNet cable
7 way joiner. Use to connect up to 5 devices at one location
Wind transducer. If using a wind sensor, plan to connect this to one end of the
backbone as this has a terminator built in