Simrad DFS75 System diagram
Observe this simplified DFS75 and FX80 system diagram. Note that power cables, uninterrupted power supplies and external interfaces are not shown.
A: Colour display (two displays may be used)
B: Processor Unit (personal computer)
C: Bridge Control Unit
D: 3rd wire (commercial, not provided by Simrad)
E: Trawl Deployment Unit (holds the Communication Hub and the Sonar Head)
F: 4th wire
G: FX80 Camera Unit (video camera and lamp)
The number of displays must be chosen to fit the preferences of the crew. Many users prefer separate displays for the trawl sonar and the live video feed. Colour displays are not included in the standard delivery from Simrad. These are commercial items that can be purchased locally.
The winch system on the trawl deck and the 3rd wire cable must also be provided by a third party manufacturer.