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EXT TRIG IN:
1PPS:
MAG:
DEBUG:
NAV:
120/240 VAC:
12 VDC:
WARNING Before connecting the system components, verify that the
SP-II TPU is turned off and that its AC and DC power cords are
disconnected from the power sources. Failure to follow this practice may
result in personal injury or damage to the towfish or the SP-II TPU electronics, or to
both. To turn off the SP-II TPU, switch the A/C-D/C switch to OFF. For the location of
this switch, refer to "Operator Controls and Indicators" on page 3-11.
For the connector pinouts and pin orientations for each of the connectors on the
SP-II TPU side panel, refer to Table 3-2 through Table 3-7. For the connector
pinout and orientation of the towfish connector at the towfish end, refer to
Table 3-8 on page 3-11. Also refer to Figure 3-2 on page 3-9 for a basic system
setup diagram, and to Figure 3-3 on page 3-10 for a system setup diagram that
includes an acoustic positioning system.
To connect the system components:
Connect the tow cable to the TOWFISH connector of the SP-II TPU.
1.
NOTE If connecting a navigation system to the SP-II TPU, it must have an
RS-232 interface that outputs a NMEA 0183 message string and be
configured for GGA&VTG, GLL&VTG or RMC at 4800 baud.
Connecting the System Components
BNC connector that is used to input an external
trigger pulse for keying the sonar.
BNC connector that is used to input a 1PPS timing
pulse.
DB9 female connector that connects to a serial port
of the magnetometer control computer. The baud
rate is 9600.
DB9 female connector that connects to a serial port
of a computer and is available for factory use and
troubleshooting purposes. The baud rate is 9600.
DB9 female connector that is used to input
navigation data. The baud rate is 4800.
3-pin bulkhead connector that connects to an
88–264 VAC, 47–63 Hz power source.
4-pin bulkhead connector that connects to an
11–12 VDC power source.
3-7
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