System Security - Sperry Marine Visionmaster FT ECDIS User Manual

ECDIS User Guide

System Security

System security is maintained by comparing identification codes contained
in the Security Block device attached to the VisionMaster PC (see System
Start-up) with the codes contained in the software configuration file.
The following rules govern system security:

In order for the VisionMaster FT to operate effectively, a Security
Block device must be properly programmed by Sperry Marine and
attached to the PC.

On a multi-node system each node has a Security Block attached.
The system also compares the allowed number of workstations
(nodes), to the actual number of nodes in the system. If the number
of nodes exceeds the limit set in the Security String an
Authorization Failure alert is given.

If the Security Block becomes damaged or detached while the
VisionMaster FT is running, an Authorization Failure alert is given.
The system will continue to operate but will revert to a degraded
state after a period of 7 days. If the Security Block is damaged the
operator should contact their supplier Sperry Marine to apply for a
replacement.

If on start-up an invalid system identification code is found in the
configuration file, the system will shut down. No grace period is
provided.

While the Security Block is broken or detached, installation of
charts is prohibited. This is true even if the user has obtained a
temporary security password.
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Basic Operation of ECDIS
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