COMPUTER HARDWARE FAILURE
AUDIBLE FAILURE DETECTION:
During the boot process an audible alarm is triggered in case of RAM or Video problems. The
sound sequences are different in accordance with the type of problem.
VISUAL DETECTION:
• If the hard disk cannot start during the boot process, a warning is displayed in grey on a
black background screen.
• During Windows operating system boot, the system displays the log of all events on a
blue background screen.
COMMUNICATION FAILURE
After Windows XP or Windows 7 has been started, ECDIS is automatically launched and the
network initialised. In case of an Ethernet problem, the different sockets cannot be created
and a warning is displayed.
If the connection with the sensors cannot be well established or a failure occurs, ECDIS warns
the navigator.
SOFTWARE FAILURE
Software failures are reported to the user in two different ways:
• Exception and memory errors messages are displayed in an alarm dialogue.
• The error freezes the system, for example, the mouse is still moving but menus are no
more accessible.
SECURITY
The computers running ECDIS are dedicated to navigation purposes and SHOULD NOT be
used for any other tasks.
SYSTEM SET-UP
Access to system set-up and configurations functions is restricted, the main window of ECDIS
is not resizable, hiding that window is impossible and the Windows task and the caption bars
are not displayed. Other applications are accessible only when operating Application
Manager in the Service mode. When the computer boots, ECDIS is automatically launched
and Windows system functions are not accessible when ECDIS900 is running in the
operational mode.
System hot keys are disabled
In the operational mode ECDIS900 restart and shutdown functions are available only through
the Application Manager. All windows system hotkeys are disabled.
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