General Information
Trackball
•
This three-button device enables operator selection of menus, menu items,
and status and control functions.
•
Trackball connectors are available on the front and rear panel of the sonar
processor. These connectors are wired in parallel; simply connect the track-
ball to the most convenient connector as there is no requirement to select ei-
ther connector.
1.3.1
81-P Sonar Processor
The 8101 Sonar Processor is the power, signal, and data distribution point for the
8101 MBES system. The internal electronic configuration is a multiple processor
environment consisting of CPU, DSPs, and FPGAs (see Chapter 5, Glossary of
Terms). The system operating software resides in the Sonar Processor and, at
power-on, downlinks configuration parameters to the Sonar Head (both the Proc-
essor and Head store their firmware in easily upgraded flash memory).
The power supply assembly auto-senses mains voltage to accommodate 90 to
260 VAC and produces the various DC voltages required by Processor and So-
nar Head.
The Sonar Processor demultiplexes the signal uplinked from the Sonar Head,
applies amplitude and phase adjustments, and distributes these signals to the
beamforming processor. Other Sonar Processor functions include: bottom detect
management, image processing, graphics processing, and I/O control. The
graphics processor produces S-VGA (default) or S-Video. Auxiliary video outputs
are RGB or composite. S-Video and the auxiliary outputs can be either NTSC or
PAL format (see the following paragraph).
1.3.2
Display Output Interfaces
Five display formats are available as outputs from the sonar processor: S-VGA,
S-Video, RGB (green sync), RGB & Sync, and Composite. S-VGA is the default
output and is intended for use with the system's standard 800x600 pixel, 72Hz
refresh rate, Super-VGA computer monitor. In the S-VGA mode, all other display
video outputs are unavailable. The other video outputs are also available in either
NTSC or PAL format.
The selection of either NTSC or PAL changes the video output to a television
format for VCR recording. This format is incompatible with the system's S-VGA
monitor and, therefore, it will be blanked in these modes. However, all other
video formats will now be available. If an NTSC or PAL video format is selected,
a separate compatible monitor must be used with the system.
The sonar processor will 'remember' the last selected video mode at power-on.
To change the display mode, see Chapter 3, paragraph 3.13.
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SeaBat 8101 Operator's Manual
1-6
Version 3.02
