Splashproof Transceiver And Processing Unit; (Sp-Iii Tpu); Laptop Computer; Lightweight Coaxial Tow Cable - Klein 4000 Series Operation And Maintenance Manual

1-6
CHAPTER 1 Overview
1.2.4
The SP-III TPU, which is
shown in Figure 1-3, is built
into a rugged, lightweight
splashproof case, and similar
to the rack mountable TPU, it
contains the electronics for
powering the towfish,
downlink multiplexing the
control signals to the towfish,
uplink demultiplexing the
sonar and sensor data from the
towfish, and communicating
with the laptop computer. The
SP-III TPU also provides a
navigation input. All of the
connectors, indicators and
switches are splashproof and
are located on a panel on the
side of the unit. The SP-III
TPU is powered from either an
AC or DC power source which
is operator selectable with a
switch on the side panel.
1.2.5
The laptop computer, which includes the Windows 7 operating system and
SonarPro installed, is ruggedized for moderately severe use. It connects directly to
the SP-III TPU.
1.2.6
A lightweight coaxial tow cable is included with the TPU/SP-III TPU. It is Kevlar
reinforced and includes a single coaxial conductor. It is used to tow and to provide
power to the towfish, to transmit commands from the TPU/SP-III TPU to the
towfish, and to transmit sonar and sensor data from the towfish to the TPU/SP-III
TPU. The standard length is 100 meters and can optionally be up to 300 meters.
Series 4000 Sonar System Operations and Maintenance Manual

Splashproof Transceiver and Processing Unit

(SP-III TPU)

CAUTION Do not submerge the SP-III TPU in water, as it is not designed
for continuous immersion.

Laptop Computer

Lightweight Coaxial Tow Cable

Splashproof Transceiver Processing
Figure 1-3:
Unit (SP-III TPU)
P/N 11210094, Rev. 01