From Voice Video Policy Security Technical Implementation Guide
Part of SRG-POL-200092
Associated with: CCI-000961
Power systems rely on multiple tiers of defense for providing continuous power to sites and systems. Commercial power may be supplemented by uninterruptible power systems (UPS), generators, or other means. Power must be distributed to the network infrastructure, endpoints, servers, and other network devices to ensure constant delivery of services. Voice Video systems must be designed and implemented to ensure FES are always available. Providing an alternative power source requires the use of a secondary commercial power supply or other external power supply. Long-term alternate power supplies for the information system can be activated manually or automatically.
Review the Voice Video system security plan (SSP) for design criteria for the physical environment of the Voice Video system. Ensure a long-term alternate power supply for the Voice Video system capable of maintaining DISN Voice Precedence level Routine users and below and FES communications capability in the event of an extended loss of the primary power source. Suitable long-term alternate power supply includes secondary commercial power supply, generator, or other external power supply. When secondary commercial power supplies are used, best practice is to have power come into the facility or campus by a geographically diverse route. If the organization does not provide a long-term alternate power supply for the Voice Video system capable of maintaining DISN Voice Precedence level Routine users and below and FES communications capability in the event of an extended loss of the primary power source, this is a finding.
Develop and document in the Voice Video SSP the design criteria for the physical environment of the Voice Video system. The organization must provide a long-term alternate power supply for the Voice Video system capable of maintaining DISN Voice Precedence level Routine users and below and FES communications capability in the event of an extended loss of the primary power source. Suitable long-term alternate power supply includes secondary commercial power supply, generator, or other external power supply. When secondary commercial power supplies are used, best practice is to have power come into the facility or campus by a geographically diverse route.
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