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4200 SIDE SCAN SONAR SYSTEM USER HARDWARE MANUAL 0004842_REV_N
The main hardware elements in the 4200-P Portable Topside Processor include the following components
and circuit boards:
2.1.2.1 Power
The Powerboard inputs +24 VDC on J1 from the 24 VDC Power Supply on J2 from the external 18-36 VDC
input and generates the 400 VDC tow vehicle power. This 400 VDC power is output to the tow vehicle on
J13 combined with the frequency shift keyed (FSK) responder trigger signal input on J10, along with the
ADSL downlink command and uplink data signals.
The command signals are input, and the data signals are output on J14. The Powerboard also includes +5,
+12, and +15 VDC power supplies, where +12 VDC is output on J4 to the fan and on J6 to the ADSL Modem
board.
2.1.2.2 24 VDC Power Supply
The 24 VDC Power Supply inputs AC power from the AC Line Filter to generate +24 VDC. This is then output
to the Powerboard.
2.1.2.3 AC Line Filter
The AC Line Filter filters the AC power input. It then outputs the filtered power to the 24 VDC Power
Supply.
2.1.2.4 ADSL Modem
The ADSL Modem board converts the uplink data ADSL signals received from the tow vehicle and input on
the ADSL connector from the Power board into Ethernet 10/100BaseT signals. These signals are then
output to the laptop computer. Similarly, the ADSL Modem board converts the downlink Ethernet
10/100BaseT-based command signals from the laptop computer into the ADSL downlink command
signals. These command signals are output on the ADSL connector to the Powerboard for transmission to
the tow vehicle. The ADSL Modem board also serves as an Ethernet switch to provide Ethernet
connections on J2 to the laptop computer, J3 to the Wireless Router, and J1 to the Net Burner board on
the Powerboard. This connection configuration places all of these devices on the same LAN. +12 VDC
power is input on the DC connector from the Powerboard.
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