Sp-Iii Tpu - Klein 4000 Series Operation And Maintenance Manual

Topside Telemetry board.
interface for the TPU. Specifically, the Topside Telemetry board performs the
following functions:
• Separates the uplink data signals, the downlink command signals and the
• Acquires sonar and sensor data and reformats the data as required for the
• Generates command and timing signals for the towfish.
• Matches the time references at the tow fish and the TPU.
12V Power Filter board.
of the 12V power supply for the Demultiplexer board.
12V Power Supply board.
200–250 VAC and outputs 12 VDC to the 12V Power Filter board.
LED board.
mounts directly to the back of the front panel and connects to the
Demultiplexer board over a single cable.
5.3

SP-III TPU

A block diagram depicting the functional relationships of all of the printed circuit
boards in the SP-III TPU electronics is shown in Figure 5-5. These boards are
located in the SP-III TPU electronics chassis as shown in Figure 5-6. The printed
circuit boards, along with their corresponding part numbers, are the following:
• Computer Data Interface (CDI board)
• CPU board
• Topside Telemetry board
• Power Integration board
• Panel Interconnect board
The SP-III TPU connects to the towfish directly. It also connects to the SonarPro
Workstation over an Ethernet connection and to customer supplied equipment,
such as a GPS and an acoustic positioning system
Computer Data Interface (CDI) board.
and power interface between the towfish and the CPU. DC power and
telemetry commands are transported down to the towfish, while sonar and
sensor data transported up from the towfish are decoded and passed along to
the CPU.
towfish power.
Demultiplexer board.
The LED board contains all of the front panel LED indicators. It
The Topside Telemetry board provides the cable
The 12V Power Filter board provides noise filtering
The 12V Power Supply board inputs 100–125 or
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The CDI board functions as a data
SP-III TPU
5-9