Tpu; Sonarpro Workstation - Klein 4000 Series Operation And Maintenance Manual

1.2.2

TPU

The TPU is housed in a 19-inch rack mountable 2U chassis and connects to the
towfish directly using an optional coaxial tow cable, or to an optionally supplied
winch using the supplied deck cable, where the winch connects to the towfish
using a tow cable. The deck cable can also be used to connect the TPU directly to
the towfish for testing. The TPU receives and demultiplexes the sonar and sensor
data from the towfish and transfers the data to the SonarPro Workstation over an
Ethernet connection. The TPU can also input standard National Marine Electronics
Association (NMEA) 0183 message sentence formats from a connected GPS, and
a 1 PPS input is provided which inputs 1 PPS (one pulse per second) signals from
the GPS. This signal is used in conjunction with a NMEA $ZDA message input to
add an accurate time stamp to the data. The TPU provides power and downlink
commands to the towfish by combining 200 VDC with FSK control signals for
transmission over the coaxial conductor in the tow cable. In addition, the TPU
initiates each ping cycle to the side scan sonar and provides a trigger signal
simultaneously with the responder trigger generated in the towfish for use with an
acoustic positioning system.
1.2.3

SonarPro Workstation

The SonarPro Workstation is an industrial grade Intel Pentium Dual Core
based computer housed in a 19-inch rack mountable 2U chassis that inputs
processed and time tagged sonar and sensor data from the TPU over an Ethernet
10/100/1000baseT connection. A SATA hard drive is included with the Microsoft
Windows 7 operating system and SonarPro installed. SonarPro is a comprehensive
Windows based software program that provides multiple displays of real-time or
saved sonar and sensor data and towfish status. SonarPro also allows you to record
all acquired sonar and sensor data. The SonarPro Workstation also includes a high
resolution 27-inch 2560 x 1440 monitor, a keyboard and a mouse.
System Components
1-5