Is the Secondary Alarm Station (SAS) to be fully redundant to the Central Alarm Station (CAS)?
No. However, without advance notice it must be capable of assuming the command and control functions should the CAS become unable to fulfill its security monitoring and control role. The SAS does not have to receive all of the alarms, and perform complete assessment of the intrusion detection alarm zones/devices. It must be capable of providing command and control of site response forces and provide security status reports to the facility’s Emergency Command Post/Operations Center. The CAS and SAS requirements relate to the protection of Category I and II SNM and other high consequence assets.