Lowrance electronic EP-90R User Manual
5
In similar fashion, a NMEA 2000 network allows multiple display units
to receive data from a GPS antenna or multiple sonar units to receive
messages sent from a temperature sensor. A NMEA 2000 network
gives you the flexibility to view information like, engine diagnostics
and fuel level data on digital gauges or display units located anywhere
on your boat.
There are two types of LowranceNet red connectors: the single T
connector (left) and the double T connector (right).
Network Backbone and Network Nodes
A network bus backbone consists of network cabling, terminators and T
connectors. Network nodes are made by fitting T-shaped connectors into
the backbone (using the sockets on the sides) and attaching any network
device to the bottom of the T.
Staying with the previous phone wiring example, T connectors on the
Staying with the previous phone wiring example, T connectors on the
backbone are the equivalent of phone jacks spread throughout a house.
To pick up a phone and be able to hear a conversation from another
phone in the house, both phones have to be connected to the main phone
line. In similar fashion, only sensors and display units plugged into the
NMEA network can share information.
The network backbone is like the phone wiring that runs throughout a
The network backbone is like the phone wiring that runs throughout a
home. It connects the network nodes, allowing them to communicate
across the network. Connections found in the middle of the bus could have
T connectors or backbone network cable plugged into one or both sides.
Connections at the end of a network will have the backbone cable plugged
Connections at the end of a network will have the backbone cable plugged
into one side and a terminator plugged into the other.