GE P642 Technical Manual page 404

Chapter 17 - Cyber-Security
IED functions and features are assigned to different password levels. The assignment is fixed.
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The audit trail is recorded, listing events in the order in which they occur, held in a circular buffer.
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Records contain all defined fields from the standard and record all defined function event types where the
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function is supported.
No password defeat mechanism exists. Instead a secure recovery password scheme is implemented.
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Unused ports (physical and logical) may be disabled.
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P64x
P64x-TM-EN-1.3