JW Fishers SSS-100K PC Operation And Maintenance Manual page 26

OPERATOR SWITCHES AND CONTROLS (continued)
• TOWFISH CONNECTOR - The cable from the towfish is attached to this connector.
• GPS INPUT connector - Your GPS plugs into this connector. The Sonar Processor requires a
NMEA 0183 input. It may be necessary to select this type of output from a menu in
your GPS unit (see the Appendix in the back of this manual for more detail).
• SP to PC INTERFACE - A splash proof USB cable connects the Sonar Processor box to the
PC. The cable plugs into any available USB port at the computer. (Note: It is best to
use the same USB port every time you operate)
• POWER INPUT - The input power for the Sonar Processor is 12 volts dc. A power cable is
supplied with the side scan system. One end of the cable connects to the Sonar
Processor. The end with red(+) and black(-) alligator clips connects to a 12 volt bat-
tery. An optional 120 vac to 12 vdc wall transformer is available.
• WATER GROUND - To reduce outside electrical interference (noise on the sonar image),
connect a wire (provided) from the "Water Ground" terminal on the Sonar Processor
panel directly to a piece of metal that goes into the water.
Cable
from
Towfish
Input
Power Cable
(12 vdc)
Water
Ground
SONAR PROCESSOR BOX
26
Cable from
boats
GPS
SP to PC Interface
(USB Cable)
to computer