WorkHorse Mariner ADCP User's Guide
page 6 RD Instruments
Data In/Out LEDs – Channel 1 In indicates data transmission from the com-
puter to the ADCP. Channel 1 Out indicates data transmission from the
ADCP to the computer.
Gyro Display – The LCD Display shows the vessel’s gyro heading.
NOTE. The Gyro Interface is optional. If you do not have a Gyro Interface
board installed, the LCD display will be blank.
Gyro Offset Controls – Use the Up/Down/Set buttons to set the Gyro Offset
for systems with the optional Gyro Interface board installed. The Offset
Control buttons are Up, Set, and Down, as depicted by the upward arrow,
the square box, and the downward arrow respective.
For example, to set a heading offset for a multi-rate gyro, push the up or
down button and set button simultaneously, using two small aids such as a
pencil. When the desired offset is obtained, release the buttons. To prevent
accidental re-adjustment, the buttons are recessed.
GYRO DISPLAY
YR
FF
ET
NTR
L
DATA IN/OUT LEDs RESET BUTTON
P
WER
WIT
H
Figure 3. Deck Box (Front View)
ADCP (J17) – Connects the ADCP to the deck box.
Channel 1 RS 422 (J19) – Connects the computer’s RS-422 port to the deck
box. Use this only if your computer has a RS422 serial port. If you com-
puter has a RS-232 serial port (standard), use J20.
Channel 1 RS 232 (J20) – Connects the computer RS-232 port to the deck
box.
Gyro Synchro/Stepper (J22) – Optional Gyrocompass (gyro) interface con-
nects the ship’s gyro to the Deck Box. The Installation Guide lists gyro re-
quirements.
Gyro Serial RS 232 (J28) – Supplies serial, ASCII navigation data to the
computer via our VmDas program. See the VmDas help file for require-
ments. This is an option for some ADCP applications. When working in
areas where bottom-track detection is not possible, you need this equipment
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