COBHAM Sea Tel 4010W-91, Installation Manual

Page: 75 / 141

Functional Testing 4010W-91 Installation Manual
15-1
15. Functional Testing
If not already ON, Turn ON the Power switch on the front panel of the ACU.
15.1. ACU / Antenna System Check
1. Turn ACU power ON. Turn antenna Pedestal/RF Equipment power ON
2. Press
RESET
on the ACU front panel. Verify the display shows "SEA TEL INC - MASTER" and the ACU
software version number. Wait 10 seconds for the display to change to "SEA TEL INC - REMOTE" and the PCU
software version number. If the display shows "REMOTE INITIALIZING” wait for approximately 2 minutes for
the antenna to complete initialization and report the Antenna Model and PCU software version.
3. Press the
NEXT
keys repeatedly to display the Ship, Satellite, Antenna and Status menus. This verifies
that the displays change in the correct response to the keys.
If “
REMOTE NOT RESPONDING
" is displayed, or the displays do not change when the NEXT key is pressed, refer to
the Troubleshooting Section of this manual.
15.2. Latitude/Longitude Auto-Update check
This verifies that the integrated GPS antenna is automatically updating the positional information.
1. Press the
NEXT
key until the Ship’s menu is displayed.
2. Press the ENTER key to isolate the Latitude entry menu.
3. Press the
LEFT
arrow key to display a cursor under the
numeric value.
4. Press the UP arrow key to increment the displayed
value.
5. Press the
ENTER
key to submit change.
6. If automatic updating is working properly the Longitude
value display will return to the current ships Longitude
position within a few seconds.
15.3. Heading Following
Verify that the heading display in the ACU is following the ships Gyro Compass.
1. Press
NEXT
repeatedly until the SHIP MENU (Heading) display is displayed. When Left and right values are
displayed, left is the response from the pedestal and right in the local input from the gyrocompass.
2. Have another person call out the Gyro Compass heading to you while you observe the Heading display. The
Heading display should consistently be exactly the same as the Gyro Compass value. If the heading display
changes incorrectly or the red ERROR LED illuminates on the front panel, refer to the Troubleshooting section
of the ACU manual.
3. Return to normal operation OR Continue with the next functional test.
15.4. Blockage Simulation Test
Blockage output function is used to modify the behavior of Tracking and Searching when there is a known blockage
zone. The ACU provides a contact closure to ground on the SW2 terminal of the Terminal Mounting Strip when the
antenna is pointed within any one of the blockage/hazard zones or the system is searching, targeting, unwrapping or is
mis-pointed by 0.5 degrees or more (FCC TX Mute function for Transmit/Receive systems only). The contact closure
is a transistor switch with a current sinking capability of 0.5 Amp. This logic output control signal is used for: