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Ethernet
The HDS system uses an Ethernet network to interconnect high bandwidth devices such as
other HDS displays, radar and sonar. Each HDS display has one network port with 5 pin
connector. Ethernet network has orange connectors that are retained by a bayonet type locking
collar.
If more than two network devices need to be connected, use the optional Network Expansion
Port (NEP). which will allow for the connection of up to ve ethernet devices or a
StructureScan module which will allow for the connection of up to three ethernet devices.
Ethernet connector
1
5
4
3
2
Pin Function
1 TX +
2 TX -
3 RX +
4 RX -
5 GND
The Ethernet connection carries sonar, Structurescan and radar data between two or more
displays. Sonar data (water,speed, depth and temperature) is bridged onto the Ethernet bus.
Sonar data is only bridged if network sonar is turned on. Below is an example of sonar data
being shared between two displays.