---

Replace twice 'Physical' by 'Mechanical'.

8.3.4 Setting

Add the following after the last sentence:

In grade 1 l&HAS users at access level 1 may start setting (e.g. by a pushbutton) provided that this setting process may also be cancelled before completion by a user at access level 1 and means to start setting is located inside the supervised premises.

NOTE Starting of setting of the system by users at access level 1 should be used with caution.

Table 5 - Overriding of prevention of setting conditions

Replace 'АТЕ' by 'ATS' in table footnote ^b.

8.3.8.2 Unsetting - as specified in 8.3.7 b)

Replace the 3^rd paragraph by the following:

When an intruder alarm condition occurs during the unsetting procedure the alarm condition shall be notified by a warning device or indicated. When remote notification is included in the intruder alarm system, the alarm condition shall not be remotely notified until the indicator or warning device has functioned for a minimum of 30 s and the entry timer has expired.

Renumber the two existing notes into NOTE 1 and NOTE 2 respectively.

Table 6 - Restoring

Replace by the following table:

Replace 'operation' by 'functioning'.

In the 1^st line, delete ‘the operation of.8.4.1 Intruder signals or messages

In the 3^rd line, replace 'operation' by 'functioning'.

Table 7 - Processing of intruder, hold-up, tamper alarm and fault signals/messages

In NOTE 2, replace 'operation' by 'functioning'.

Replace NOTE 4 by the following:

NOTE 4 Requirements for indication should be read in conjunction with 8.5 and the functioning of indications is conditional upon the requirements of 8.5.

8.5.1 General

Add the following note after NOTE 1:

NOTE 2 Indications may be suppressed in certain cases, e g. to avoid an indication in the event of the activation of a hold-up device.

Delete the existing NOTE 2.

Table 8 - Indication

Replace by the following table:

8.5.2 Availability of indications

Replace the 1^st paragraph by the following:

Indications shall be available to users at access level 1 as specified in Table 9. The other indications included in Table 8 shall be available only to users who have accessed an l&HAS at access levels 2, 3 or 4.

Table 9 - Indications available during set and unset status at access level 1

Replace by the following table:

8.6 Notification

Correct the 2^nd paragraph to read:

The duration of the operational period of a WD may be subject to variation depending on local or national requirements.

In the 4^th paragraph replace ‘EN 50136’ by ‘EN 50136-1-T.

In the last paragraph before Table 10, replace ‘operation’ by ‘functioning’.

Table 10 - Notification requirements

Add the following notes after NOTE 2:

NOTE 3 Where 2 ATS are specified it is recommended that the transmission paths are independent and use differing technologies, typically land-line and wireless.

NOTE 4 An SPT may be part of more than one ATS.

NOTE 5 The main and additional ATS shall meet their defined performance criteria when working normally. It is not a requirement of this standard for the performance of the additional ATS to change due to the failure of the main ATS.

After Table 10

In the 1^st paragraph after Table 10, replace ‘EN 50136’ by ‘EN 50136-1-T.

Replace the existing note by the following:

NOTE 1 Annex В includes an extract of performance requirements specified in EN 50136-1-1.

NOTE 2 This standard refers to performance requirements specified in EN 50136-1-1 but does not include requirements relating to the classification of availability.

8.7.2 Tamper detection

Replace 'operate' by 'function' and 'operation' by 'functioning'.

Table 12 - Tamper detection - Components to include

Replace by the following table:

Table 13 - Tamper detection - Means to be detected

Replace by the following table:

8.8.3 Monitoring of interconnections

Add the following sentence at the end of the 1^st paragraph:

The requirements specified in 8.8.3 do not apply to portable hold-up devices and portable ACE.

9. Power supply

   1. Types of power supply

Add the following note after the last sentence.

NOTE Where the prime power source has finite capacity (e g. a battery) the power supply is considered to be of type C.

Replace 'operation' by 'functioning' and 'operate' by 'function'.

9. Operational reliability

Replace 'operation' by 'functioning'.

9. Functional reliability

Replace the 1^st sentence by the following:

l&HAS components shall comply with relevant standards. The design and the configuration of an l&HAS shall ensure the l&HAS functions in accordance with the requirements of this standard.

In the 7^th dash item, replace 'operating' by 'working'.

9. Environmental requirements

Replace 'operation' by 'functioning'.

15 Marking/ldentification

Add the following after the 3^rd dash item:

- standard to which the component claims compliance;

Annex A Special national conditions

Replace 'operate' by 'function'.

CE^ELEC

EN 50131-1/IS2

Interpretation 2

EN 50131-1:2006

English version

Foreword

This interpretation of the European Standard EN 50131-1:2006 was prepared by the Technical Committee CENELEC TC 79, Alarm systems. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC on 2010-07-09.

This document supersedes EN 50131-1:2006/IS1:2009.

Compared to EN 50131-1:2006/IS1:2009 the only change is the replacement of the 2nd paragraph of 8.5.4 by a new one for clarification’s sake.

EN 50131-1:2006, Alarm systems - Intrusion and hold-up systems - Part 1: System requirements, includes many requirements that may not match traditional intrusion systems in some countries. Additionally, standards are written in a style which can make them difficult to understand unless some explanation is given. This interpretation is intended to provide extra information to readers of the standard to assist in its understanding. It should be read in conjunction with the standard.

This interpretation varies in the depth of detail provided. More detail is given for areas that prompted significant questions during the development of EN 50131-1:2006.

This interpretation may also assist translators by clarifying the meaning of the standard.

This interpretation is informative and the standard shall be used to resolve any disputes.

ATTENTION - Numbering of clauses and tables:

In this document (sub)clause and table numbers written in italic (e.g. Table 7, Subclause 8.3.1) refer to subclauses and tables in EN 50131-1:2006. Numbers written normally (e.g. Table 2, Subclause 6.1.1) usually refer to this document but, when specifically stated, may refer to other documents.Contents

1. About this document 3

   1. Scope 3

   2. References 3

   3. Definitions and abbreviations in this document 3

2. Brief guide on How to read the standard 4

   1. Conventions used in standards (CENELEC Internal Regulations) 4

3. Definitions 4

6. Security grading 6

7. Environmental classification 6

8. Functional requirements 7

9. Power supply 19

Figures

1. - General processing 10

2. - Relationship of ATS and l&HAS 16

Tables

1. - Events - Cross references 11

2. - Excerpt of Table 7 12

3. - Contents of Table 8 and Table 9 14

4. - Clarification for Table 9 15

5. - Interpretation of some items of Table 22 18

In Clauses 3 to 9 of this document the section numbering
matches the clauses of EN 50131-1:2006.

Only interpreted clauses are given and therefore the numbers
are not continuous.

1. About this document

   1. Scope

This document provides interpretation for the contents of EN 50131-1:2006 only. Other standards, Technical Reports or Technical Specifications in the EN 50131 series or EN 50136 series may be referenced but the interpretation is restricted to the scope and use of EN 50131-1:2006.

The standard that this document interprets is EN 50131-1: 2006, Alarm systems - Intrusion and hold-up systems - Part 1: System requirements.

Other standards referenced are those listed in the normative references of EN 50131-1:2006.