Laptop Computer; Rack Mount Transceiver And Processing Unit; Mount Tpu) - Klein 4900 Series Operation And Maintenance Manual

1-4
CHAPTER 1 Overview
1.2.3
The laptop computer, which includes the Windows operating system and SonarPro
installed, is the control and display interface. The computer is set up in a client-
server format, allowing for flexible and expandable system configurations with
multiple computers connected over a TCP/IP fast Ethernet network, all sharing the
sonar data.
1.2.4
The Rack Mount Transceiver and Processing Unit (Rack Mount TPU) is optionally
available and is shown in Figure 1-3. This 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 laptop computer 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 1PPS input is provided
which inputs 1PPS (one pulse per second) signals from the GPS. This signal is
Series 4900 Sonar System Operations and Maintenance Manual
Figure 1-2:

Laptop Computer

Rack Mount Transceiver and Processing Unit (Rack

Mount TPU)

SP-III TPU
P/N 11210091, Rev. 02