Transceiver And Processing Unit; Input Power; Towfish Fuse; Figure C-6: Tpu Rear Panel - Klein 3000 Series Operation And Maintenance Manual

C-13

Transceiver and Processing Unit

The rear panel of the TPU is shown in Figure C-6.
TPU Rear Panel
Figure C-6:
C.5.1 Input Power
Check the rear panel of the TPU for the proper AC input voltage setting, 120 VAC
or 240 VAC. Power is connected to the back of the unit on the left side, when
viewed from the back.
The AC input fuses (both high and low sides) are located above the AC power
connector. To check or replace an AC fuse, lift the tab and pull out the fuse insert.
A spare fuse should also be located there. The fuse will be a 2-A, 5 x 20-mm
slow-blow fuse rated for 250 volts (P/N 13000045).
C.5.2 Towfish Fuse
The towfish fuse is on the 200 VDC line to the towfish. Access to this fuse is
located on the back of the TPU just below the towfish connector. The towfish fuse
is a 6.3 A, 5 x 20-mm slow-blow fuse rated for 250 volts (P/N 13000163).