Towfish Fuse; Grounding; Connecting Cables And Power Cords - Klein 3000 Series Operation And Maintenance Manual

3-4
CHAPTER 3 Setup and Test
3.3.2
The towfish is protected by a 6.3-A, 5 x 20-mm slow blow fuse rated for 250 volts
(P/N 13000163). It is located on the back panel of the TPU and is below the
TOWFISH connector. Before changing the fuse, be sure that the TPU is
disconnected from its power source. To remove the fuse, use a flat bladed
screwdriver to push in and then turn the fuse receptacle counterclockwise. The
fuse will pop out. Remove the fuse from the holder to check or change it. When
replacing it, there are two tabs that line up in the insert. When the tabs are aligned,
push in on it and turn it clockwise to lock it into position.
3.3.3
It is important that the TPU be well grounded to minimize potential hazards to the
operator and electrical interference from other equipment. A good ground for the
system is a low impedance, well conducted path to the sea water. Always check the
quality of the electrical ground. Check that the AC power source ground has no
voltage potential with respect to the vessel hull.
3.4

Connecting Cables and Power Cords

The hardware must be fully interconnected for real time data collection. The
computer may be used standalone when desired for display of stored data. Connect
the cables as described below to set up the system for normal operation. In
addition, refer to "Basic System Requirements" and "Basic System Setup" on page
C-2 of APPENDIX C: "General Setup, Configuration and Troubleshooting," for
additional setup information.
Tow cable.
page 3-5.
NMEA navigation data line.
navigation equipment to the TPU COM2 connector.
LAN cables.
rear panel of the TPU, and the other end connects to the Ethernet Hub. A
second LAN cable connects from the Ethernet Hub to the computer.
Computer cables.
to the computer.
Power Cords.
display, and the computer.
Series 3000 Sonar System Operations and Maintenance Manual

Towfish Fuse

Grounding

Connect the tows cable as described in "Towfish Setup" on
One end of a LAN cable connects to the LAN connector on the
Connect the computer display, keyboard and mouse cables
Connect the power cords to the Ethernet Hub, the TPU, the
Connect the data line from your NMEA
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