The following features described in this standard apply to Alstom Grid Px40 relays:
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Passwords are 8 characters long and can contain upper-case, lower-case, numeric and special characters.
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Passwords are never displayed or transmitted to a user.
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IED functions and features are assigned to different password levels. The assignment is fixed.
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Record of an audit trail 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 function is supported.
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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.