Document: NUREG-0800
Document ID: b6428ab0-2037-4bac-9b93-b46af9f2fdfb
Document Type: srp
Title: DATA COMMUNICATION SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070650036.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.9
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le. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. SRP Section 7.1 describes the general procedures to be followed in reviewing any I&C system. Therefore, review procedures specific to any DCS can be synthesized from SRP Appendix 7.1-A. NUREG/CR-6082, “Data Communications,” discusses data communication technology and the technical rationale for review issues specific to data communication and includes background information to assist the reviewer in identifying critical technical features. This part of SRP Section 7.9 highlights specific topics that should be emphasized in the DCS review. The review should include an evaluation of the DCS against the guidance of IEEE Std. 603-1991 or IEEE Std. 279-1971, depending on the applicant/licensee’s commitment regarding these design criteria, and IEEE Std. 7-4.3.2 as endorsed by Regulatory Guide 1.152, Revision 2. Procedures for these reviews are detailed in SRP Appendix 7.1-B for IEEE Std. 279-1971, SRP Appendix 7.1-C for IEEE Std. 603-1991, and SRP Appendix 7.1-D for IEEE Std. 7-4.3.2-2003. 7.9-6 Revision 5 - March 2007 Although the primary emphasis is on the equipment comprising the DCS, the reviewer should consider the DCS functions at the system level. The DCS design should be compatible with the design of the supported systems as described in the process system chapters of the SAR and their functions and performance as assumed in the SAR Chapter 15 design bases accident analyses. It is not sufficient to evaluate the adequacy of the DCS only on the basis of the design’s meeting the specific requirements of IEEE Std. 279-1971 or IEEE Std. 603-1991. The DCS review should address the applicable topics identified in SRP Table 7-1. SRP Appendix 7.1-A