Manual

June 2004 Isis® Sonar User's Manual, Volume 2 130
I.1.1 Summary Description of an EdgeTech ACI Board
The current version of Isis includes support for the EdgeTech ACI board. This board has
these properties:
• It’s an ISA board which takes power only from the ISA bus.
• It interfaces to the EdgeTech 272 towfish.
• It allows two channels of digital data (100 kHz, 400 kHz).
• It has two internal cables:
 serial cable (4800 baud) connecting to an Isis serial port
 parallel cable connecting to the Isis DSP
The parallel cable passes straight-through, just like with the DCI board (which provides
an interface to the EdgeTech DF1000 towfish).
The software consists of three files:
EGG_ACI.EXE Control program which communicates over the serial cable.
ACI.OUT DSP program which is loaded into the Isis DSP
DF1K_32.EXE Server program. This is the same as used for the DCI board.
When the ACI board is selected in Record Mode, the appropriate files are automatically
set up.
I.1.2 EdgeTech DF1000 Usage Notes
1. The control program allows the user to select between 100 kHz and 400 kHz.
The current frequency is displayed above the waterfall window in record mode.
When the data are saved as XTF, the frequency is also saved and displayed on
playback.
2. When
Trigger is de-selected in the ACI board control program, the waterfall
window continues to scroll in Isis (but with empty data). This is by the design of
the ACI board.
J2 is the 10-pin serial header for the Isis serial connection. The cable used for this
connection should be a straight-through serial cable (no null-modem required). Settings
for other jumpers are shown in Table I-2.
Appendix I: Working with Specific Sonars