B&G Triton Display - Manual (Page 12)

10 |
Wiring | IS40/Triton System Installation Manual
• Certain products have two Micro-C or SimNet connectors, which
can be made to be an in line component of the backbone.
Connecting from device to device is known as ‘daisy chaining’ This
network topology is not officially NMEA 2000 compliant.
Planning and installing a network backbone
Plan the backbone carefully.
The NMEA 2000 backbone needs to run between the locations of all
products you want to install, typically in a bow to stern layout, and
be no further than 6 m from a device to be connected.
Choose from the following components to make up your NMEA
2000 backbone:
• Micro-C cables: Available lengths from 0.4 m (1.3 ft) to 25 m (82.5 ft)
• Micro-C power cables with or without termination
• T-connector. Use at locations where you want to connect a device
by drop cable
• Wind transducer. If using a wind sensor, plan to connect this to one
end of the backbone as this has a terminator built in
• Micro-C male and Micro-C female to SimNet adaptor cables for
connecting to existing SimNet bus, or adding devices fitted with a
SimNet connector to a Micro-C network.
Power the network
An NMEA 2000 network requires its own 12 V DC power supply
protected by a 5 amp fuse or breaker.
In smaller NMEA 2000 systems, the power connection may be made
anywhere in the system,
For larger systems introduce power at a central point in the
backbone to “balance” the voltage drop of the network. Use a power
cable without termination.
¼ Note: When joining an NMEA 2000 network to a SimNet network, it
is not necessary to introduce power to both.
¼ Note: Do not connect the power cable to the same terminals as the
autopilot computer, pulse radar, bow thruster or other high current
devices - the network may be affected by voltage drop when these
devices are operated. Avoid connection to the engine starting
batteries where possible.