Klein 3000 Quick Start Manual page 2

Type N
Connector
Center Pin
b. If the 200 VDC is present on the Type N Connector, reconnect to
the Type N Connector and continue checking for the 200 VDC.
Confirm that it is present at the end of the tow cable or the deck
cable (depending on configuration). If using a winch, confirm that
the 200 VDC is present at the input to the slip ring and at the end of
the winch tow cable. The final check should be at the input to the
Towfish.
Note:
The faults described below in relation to
R11 on the TPU 200 VDC Power Supply PCB (R10
on newer Universal Power Supply PCB's, Klein PN
14103210) and R30 on the Towfish Multiplexer
PCB are normally caused when the tow cable
breaks with the TPU energized or could be caused
if the tow cable is disconnected with the TPU
energized. If proper care is taken to shut down
the system completely before disconnecting the
tow cable at any point in its run between the Type
N Connector on the TPU and the bulkhead
connector on the Towfish, the occurrence of this
fault should be minimized. Whenever the TPU is
energized and connected to the Towfish, the
Towfish is energized.
3) Assuming that the 200 VDC is present at the input to the Towfish, that
the Computer and the TPU are properly configured and the Cable