PE-11(2)—Alternate Power Supply -- Self-Contained
>Control Description
Provide an alternate power supply for the system that is activated ☑manually; automatically and that is:
a. Self-contained;
b. Not reliant on external power generation; and
c. Capable of maintaining ☑minimally required operational capability; full operational capability in the event of an extended loss of the primary power source.
>Cross-Framework Mappings
>Supplemental Guidance
The provision of a long-term, self-contained power supply can be satisfied by using one or more generators with sufficient capacity to meet the needs of the organization.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What policies and procedures govern the implementation of alternate power supply -- self-contained for the organization's facilities?
- •Who is responsible for overseeing and maintaining alternate power supply -- self-contained controls?
- •How frequently are alternate power supply -- self-contained controls reviewed and updated?
- •What process exists for granting exceptions to alternate power supply -- self-contained requirements?
- •How does the organization ensure accountability for alternate power supply -- self-contained across all facility locations?
Technical Implementation:
- •What technologies or systems technically implement alternate power supply -- self-contained?
- •How are these systems configured to meet the control requirements?
- •What monitoring or alerting capabilities exist for alternate power supply -- self-contained?
- •How do alternate power supply -- self-contained systems integrate with other physical security infrastructure?
- •What redundancy or backup mechanisms support alternate power supply -- self-contained?
Evidence & Documentation:
- •Provide documented policies and procedures for alternate power supply -- self-contained.
- •Provide evidence of alternate power supply -- self-contained implementation and configuration.
- •Provide logs, records, or reports demonstrating alternate power supply -- self-contained activities over the past 90 days.
- •Provide testing, maintenance, or inspection records for alternate power supply -- self-contained from the past year.
- •Provide evidence of alternate power supply -- self-contained reviews, audits, or assessments.
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