Kongsberg Simrad FX80, Quick Start Manual, Page: 17 / 46

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Bridge Control Unit
The Bridge Control Unit provides all the interface and power supply functionality for
the Simrad FX80 system.
It is connected to the Communication Hub in the Trawl
Unit with a high-quality third-wire cable. This cable
is used for both data communication (live video and
sonar feed) and power.
The Bridge Control Unit is connected to the
computer with an Ethernet cable. Additional Ethernet
connections allow you to connect a second computer,
and/or interface the ship’s network. A serial line is
provided to communicate with the ship’s navigation
system.
The Bridge Control Unit is designed for installation in a 19" rack. Its total height is 4U,
and the depth is approximately 490 mm including the handles.
Trawl Unit
The Trawl Unit is made up of several components, including the DFS75 Sonar Head and
Communication Hub, enclosed in a Deployment Pack.
The Trawl Unit’s Deployment Pack is the main
underwater container for the Simrad FX80
system. It is made from polyurethane and has
been designed for tough use in the harshest of
environments, yet it is easy to handle.
There are two separate units assembled within
the steel frame of the Deployment Pack. The
first unit is the DFS75 Sonar Head. The second
unit is the Communication Hub. The third-wire
cable is connected to this hub, which provides the interfaces to the Camera Unit and
the DFS75 Sonar Head.
The mounting kit supplied contains the strain-relief cable gland, the pigtail, and other
hardware devices used to attach the trawl cable to the headrope on the trawl.
Simrad FX80