The organization provides a short-term uninterruptible power supply to facilitate Selection (one or more): an orderly shutdown of the information system; transition of the information system to long-term alternate power in the event of a primary power source loss.

PE-11 (1) Long-Term Alternate Power Supply - Minimal Operational Capability

HIGH

This control enhancement can be satisfied, for example, by the use of a secondary commercial power supply or other external power supply. Long-term alternate power supplies for the information system can be either manually or automatically activated.

The organization provides a long-term alternate power supply for the information system that is capable of maintaining minimally required operational capability in the event of an extended loss of the primary power source.

PE-11 (2) Long-Term Alternate Power Supply - Self-Contained

This control enhancement can be satisfied, for example, by the use of one or more generators with sufficient capacity to meet the needs of the organization. Long-term alternate power supplies for organizational information systems are either manually or automatically activated.

The organization provides a long-term alternate power supply for the information system that is:

PE-11 (2)(a)

Self-contained;

PE-11 (2)(b)

Not reliant on external power generation; and

PE-11 (2)(c)

Capable of maintaining Selection: minimally required operational capability; full operational capability in the event of an extended loss of the primary power source.