Document: NUREG-0800
Document ID: 159cf729-f983-4b84-a109-82ef8efdeb60
Document Type: srp
Title: COMMUNICATIONS SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550037.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.2
CFR Part: 
CFR Title: 

Content:
rs must be bullet-resisting. The onsite central alarm station must be located within a building in such a manner that the interior of the central alarm station is not visible from the perimeter of the protected area. This station must not contain any operational activities that would interfere with the execution of the alarm response function. Onsite secondary power supply systems for alarm annunciator equipment and non-portable communications equipment as required 10 CFR 73.55(f) of this section must be located within vital areas. All alarm devices including transmission lines to annunciators shall be tamper indicating and self-checking, e.g., an automatic indication is provided when failure of the alarm system or a component occurs, or when the system is on standby power. The annunciation of an alarm at the alarm stations shall indicate the type of alarm (e.g., intrusion alarms, emergency exit alarm, etc.) and location. All emergency exits in each protected area and each vital area shall be alarmed. 14. Information regarding the requirements of 10 CFR 73.55(f) will be found acceptable if each guard, watchman or armed response individual on duty is capable of maintaining continuous communication with an individual in each continuously manned alarm station required by 10 CFR 73.55(e)(1), who shall be capable of calling for assistance from other guards, watchmen, and armed response personnel and from local law enforcement authorities. The alarm stations required by 10 CFR 73.55(e)(1) shall have conventional telephone service for communication with the law enforcement authorities as described in 10 CFR 73.55(f)(1). To provide the capability of continuous communication, radio or microwave transmitted two-way voice communication, either directly or through an intermediary, shall be established, in addition to conventional telephone service, between local law enforcement authorities and the facility and shall terminate in each continuously manned alarm station required