Sonar Electronics - DATASONICS SIS-1500 System Manual

4-10
Circuit Board
Backplane:
Cable Interface:
Power:
Modem:
Microcontroller:
Burst:
Transmitter:
Receiver:
Digitizer:
T1 Interface:
Option:

Sonar Electronics

An outline drawing of the sonar electronics chassis is shown in Figure 4-4.
The sonar electronics consists of a Melcher DC power supply, which
regulates the high voltage power from the topside processor to 48 VDC; an
energy storage capacitor bank, which provides stored energy; and the set of
eleven circuit boards, which perform the following functions:
Backplane board. Provides all of the interconnections between the
boards in the sonar electronics.
Cable Interface board. Combines the sonar data, the tow vehicle
status information, and the sensor data and transmits all this data to
the topside processor's digital multiplexer while it simultaneously
receives the high voltage power, the downlink commands, and the
sonar and responder keys from the multiplexer.
Power board. Generates all the required low level DC voltages.
Modem board. Demodulates the downlink commands.
Microcontroller board. Controls all the functions of the tow vehicle.
Burst board. Generates the Chirp transmit waveforms.
Volume I System Manual
Assembly Drawing
B150-08060
B150-08301
A150-08277
B150-08325
B150-07926
B150-08307
B150-07894
B150-07887
B150-08203
B150-08298
Custom designed per user specification
DATASONICS
June 1998