Danelec Business System
Danelec Marine S-VDR/VDR USER GUIDE
Confidential. Copyright Danelec Marine A/S
DBS11343-11
Page 13/44
4.3.1 Audio test
The audio test will initiate a microphone test. All microphone inputs on the VDR will be tested
using the built in buzzer in the microphones. After the test, a report will be generated indicating if
the connected microphones are working satisfactorily.
The report will indicate connected and configured microphones that are working correctly with a
green colour. Microphones that are configured but not working correctly will be indicated with a
yellow colour. Unused audio inputs will be shown as disabled.
4.3.2 Communication audio test
The communication audio test will test the VHF input to the VDR. After selecting communication
audio test, the BCP will now prompt the activation of the VHF connected to the VDR. The system
will detect when audio is present and make a short recording. If no audio is detected by the VDR,
an error message will appear.
After the test, the recorded audio is presented as a waveform picture. Here, the quality of the
recording can be evaluated.
4.3.3 Operational Performance Test
The OPT is a simplified VDR test that will verify the quality of all connected signals as well as
checking the final recording media (FRM) of the VDR. An OPT should be conducted on a regularly
scheduled basis to ensure that the VDR is working and recording correctly.
The OPT consist of the following test:
Test
Description
Final recording media
Verifies that the recording media are working and have recorded
continuously for the required period.
Audio test
Verifies all configured Microphones
Communication test
Verifies main and secondary VHF radio
Serial input test
Verifies all configured serial inputs
Analog input test
Verifies all configured analog signals
Digital test
Verifies all configured digital inputs
Image test
Verifies all configured image channels
The OPT is an automated process. After starting the OPT, the user will be prompted a few times in
order to carry out the communication audio test. The OPT will take a couple of minutes to
complete.
After the OPT has finished, an OPT report will be generated and displayed. The OPT report will
indicate any problems found during the test by highlighting the affected input with a yellow colour.
Some items such as communication audio and video are required to be verified by the user. In the
report it is therefore possible to view pictures of the communication audio and grabbed images from
the configured image sources.
Communication audio should be inspected for signs of constant noise. Images should be inspected
for clarity and correct resolution. Incorrect resolution will usually be seen on radar images where
the radar range rings are oval in shape.
