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3-12
CHAPTER 3 Setup and Test
T/F TRIG:
RESP TRIG:
LOCK LOSS:
D/C POLARITY:
3.7
System Activation and Test
The Series 3900 Sonar System should be activated and tested on deck and at sea
before starting an actual survey.
3.7.1
To activate and test the system on deck:
Verify that the towfish has been properly set up and the system components
1.
connected.
2. Turn on the navigation system and let it acquire its location.
3. Verify that the tow cable is connected to the SP-II TPU and the towfish.
4. Turn on the laptop computer and wait for the Windows desktop to appear.
connection.
5. Turn on the SP-II TPU by switching the A/C-D/C switch to A/C for AC operation
or to D/C for DC operation.
The PWR, T/F PWR and LOCK LOSS indicators should illuminate, then after
approximately 45 seconds, the LOCK LOSS indicator should turn off and the
T/F TRIG indicator should begin flashing at the ping rate of the sonar.
Series 3900 Sonar System Operations and Maintenance Manual
Yellow indicator that flashes when the sonar pings.
Yellow indicator that flashes when a responder
trigger pulse is output.
Red indicator that illuminates when the telemetry
link with the towfish is interrupted or lost.
Red indicator that illuminates when the polarity of
the DC input power is reversed from what it should
be.
NOTE Should it be required to change the IP address, edit the startup.ini
file or update the software of the SP-II TPU, refer to APPENDIX B:
"Configuring and Updating the SP-II TPU."
Activating and Testing the System on Deck
NOTE Should the DC power cord be connected with the polarities
reversed, the D/C POLARITY indicator will illuminate when the A/C-D/C
switch is switched to D/C. Should this situation occur, reverse the
P/N 11210085, Rev. 01
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