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Wiring | E5024 ECDIS Installation Manual
¼ Note: Simrad devices with Micro-C NMEA 2000 connectors are fully compatible with a SimNet
network by using a Micro-C to SimNet adapter cable.
Power the CAN bus
The network requires its own 12 V DC power supply protected by a 5 amp fuse or breaker. For
vessels fitted with 24 V systems, use a DC-DC converter to supply 12 V.
Connect power at any location in the backbone for smaller systems.
For larger systems introduce power at central point in the backbone to “balance” the voltage
drop of the network.
If an SI80 unit is included in the system, this unit should be used for powering the CAN bus
backbone.
¼ Note: Do not connect the CAN bus power cable to the same terminals as the engine start
batteries, autopilot computer, radar, bow thruster or other high current devices.
When you have a larger system with network power in the center of the backbone you
should make the installation such that the load / current draw from the devices in each side /
branch is equal.
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T
T
9
8
5
3
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4
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1 N2K sensor
2 E5000 processor
3 SI80
4 Power source
5 ‘Drop’ cable (should not exceed 6 m (20 ft) each)
6 SI80 module congured with terminator. This SI80 is used to power the CAN bus
7 T connectors
8 Backbone
9 Terminator
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