ISBN 978-0-626-30910-7 SOUTH AFRICAN NATIONAL STANDARD Electrical security systems Part 2-2: Access control systems Central processor WARNING This document references other documents normatively. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS
Table of changes Change No. Date Scope Amdt 1 2005 Amended to change the designation of SABS standards to SANS standards, and to update the introductory paragraph to the normative references clause and referenced standards. Amdt 2 2014 Amended to update referenced standards. Foreword This South African standard was approved by National Committee SABS/TC 068, Electrical and electronic security systems, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This document was published in October 2014. This document supersedes SANS 2220-2-1:2005 (edition 1.1). A vertical line in the margin shows where the text has been technically modified by amendment No. 2. SANS 2220 consists of the following parts, under the general title Electrical security systems: Part 1-1: Intruder alarm systems General characteristics. Part 1-6: Intruder alarm systems Passive glass-break detectors for use in buildings. Part 1-7: Intruder alarm systems Power units. Part 2.1: Access control systems General characteristics. Part 2-2: Access control systems Central processor. Part 2-3: Access control systems Card readers. Part 2-4: Access control systems Reader controllers. Part 2-5: Access control systems Biometric readers. Part 2-6: Access control systems Access cards. Part 2-7: Access control systems Barriers. Annexes A and B are for information only.
Contents Page Foreword 1 Scope... 3 2 Normative references... 3 3 Definitions... 3 4 Requirements... 4 4.1 General... 4 4.2 Environmental requirements... 4 4.3 Functional requirements... 4 4.3.1 Processor hardware... 4 4.3.2 Processor software... 4 4.3.3 Card parameters... 6 5 Marking... 8 5.1 General... 8 5.2 Components... 8 5.3 Additional information... 8 6 Inspection and methods of test... 9 6.1 Inspection... 9 6.2 Conditions of test... 9 6.3 Sequence of testing... 9 6.4 Environmental tests... 9 6.5 Processor software test... 9 Annex A (informative) Quality verification of central processors... 10 Annex B (informative) Bibliography... 10 1
Electrical security systems Part 2-2: Access control systems: Central processor 1 Scope 1.1 This part of SANS 2220 specifies the characteristics of central processors for use as part of access control systems. 1.2 SANS 2220-2-1 specifies general characteristics of access control systems. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Information on currently valid national and international standards can be obtained from the SABS Standards Division. Amdt 1 IEC 60050-191, International electrotechnical vocabulary Chapter 191: Dependability and quality of service. Amdt 1 IEC 60300 (all relevant parts), Dependability management. Amdt 1 SANS 2220-2-1, Electrical security systems Part 2-1: Access control systems: General characteristics. SANS 10222-2, Electrical security installations Part 2: Access control. SANS 60300-3-16/IEC 60300-3-16, Dependability management Part 3-16: Application guide - Guidelines for specification of maintenance support services. SANS 60389-1-3/IEC 60389-1-3, Alarm systems Part 1: General requirements Section Three: Environmental testing. Amdt 2 3 Definitions For the purposes of this part of SANS 2220, the definitions given in SANS 10222-2 apply. 3
4 Requirements 4.1 General A central processor shall include the following components: a) a micro-processor; b) software; c) a computer terminal; d) a printer; and e) an enclosure. 4.2 Environmental requirements When a central processor is tested in accordance with 6.4, it shall continue to function as intended. 4.3 Functional requirements 4.3.1 Processor hardware A central processor shall: a) have an MTBF (mean time between failures) (guaranteed by the supplier) of at least 15 000 h, assessed in accordance with IEC 60050-191 and IEC 60300 (all relevant parts); Amdt 1 b) be of a modular design; c) contain a hard-disk drive or similar device with an MTBF (guaranteed by the supplier) of at least 15 000 h under continuous operation; d) be capable of retrieving and reinstating data; e) contain random access memory circuits; f) contain a real-time clock circuit capable of maintaining and displaying real time (month, day, hour, minute and second); g) contain circuitry that provides an interface with the peripheral devices (such as readers and reader controllers) by means of standard communications protocol (handshaking protocol between central processor and reader controllers in both directions is recommended); and h) be so configured that the system completes the decision-making process at the controller or processor and has a transaction time (excluding biometric data evaluation) not exceeding 1 s. 4.3.2 Processor software 4.3.2.1 General An access control application program shall: a) when tested in accordance with 6.5, cause the central processor to comply with the requirements of 4.3.2 and 4.3.3; 4