Transducer Arrays - Klein 4000 Series Operation And Maintenance Manual

Transition board.
large gauge wires from the RX PORT and RX STBD bulkhead connectors on
the end cap to the Receiver board's 50 pin ribbon cable and to the Transmitter
board's 3-pin connectors. Two additional connectors, one 2-pin and one 3- pin,
are for future options.
12 VDC Power Supply and Filter board.
Filter board inputs 100–240 VDC on connector P1 from the Filter board's
connector JP1. The 12 VDC output from the Power Supply board on P2 is also
connected to connector JP1 of the Filter board. All voltages are filtered by the
Filter board to and from the CSI board. The interconnection is from JP2 of the
Filter board to JP18 of the CSI board.
24 VDC Power Supply and Filter board.
Filter board inputs 100–240 VDC on connector P1 from the Filter Board's
connector JP1. The 24 VDC output from the Power Supply board on P2 is also
connected to connector JP1 of the Filter board. All voltages are filtered by the
Filter board to and from the CSI board. The interconnection is from JP2 of the
filter board to JP19 of the CSI board.
Subsea Telemetry board.
interface for the towfish. Specifically, the Subsea Telemetry board performs
the following functions:
• Separates the uplink data signals, the downlink command signals and the
towfish power.
• Acquires sonar and sensor data from the CSI board and transmits the
combined data to the SP-III TPU.
• Receives and interprets command and timing signals from the SP-III TPU.
• Matches the time references at the tow fish and the SP-III TPU.
5.1.2

Transducer Arrays

The transducer arrays contain transducer elements that both transmit and receive
the acoustic signals. They also include two 2-channel embedded preamplifiers
each which are powered from the Receiver board. The preamplifiers provide
filtering and both 12 dB of fixed gain and 48 dB of TVG to the received sonar
signals where the TVG is triggered from the Receiver board. The 12 dB of fixed
gain is on or off operator selectable. Along with the TVG to compensate for the
acoustic spreading loss, the preamplifiers increase the signal-to-noise ratio of the
received signals before they are output to the Receiver board.
The Transition board provides the means to connect the
The Subsea Telemetry board provides the cable
Towfish
The 12 VDC Power Supply and
The 24 VDC Power Supply and
5-5