5-8 CHAPTER 5 Technical Description
Series 5000 V2 Sonar System Operations and Maintenance Manual P/N 11214512, Rev. 04
Topside Telemetry board. The Topside Telemetry board provides the cable
interface for the TPU. Specifically, the Topside Telemetry board performs the
following functions:
• Separates the uplink data signals, the downlink command signals and the
towfish power.
• Acquires sonar and sensor data and reformats the data as required for the
Demultiplexer board.
• Generates command and timing signals for the towfish.
• Matches the time references at the tow fish and the TPU.
12V Power Filter board. The 12V Power Filter board provides noise filtering
of the 12V power supply for the Demultiplexer board.
12V Power Supply board. The 12V Power Supply board inputs 100–125 or
200–250 VAC and outputs 12 VDC to the 12V Power Filter board.
LED board. The LED board contains all of the front panel LED indicators. It
mounts directly to the back of the front panel and connects to the
Demultiplexer board over a single cable.
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