Alarm systems - Intrusion and hold-up systems - Part 5-3: Interconnections - Requirements for equipment using radio frequency techniques

IEC 62642-5-3:2010 applies to intrusion alarm equipment using radio frequency links and located on protected premises. This standard defines the terms used in the field of intrusion alarm equipment using radio frequency links as well as the requirements relevant to the equipment. It is used in conjunction with the other parts of the IEC 62642 series that define the functional requirements of the equipment regardless of the type of interconnections used.

Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et les hold-up - Partie 5-3: Interconnexions - Exigences pour les équipements utilisant des techniques radio fréquence

La CEI 62642-5-3:2010 s'applique aux équipements d'alarme intrusion utilisant des liaisons radio et installés à l'intérieur des locaux protégés. Cette norme définit le vocabulaire utilisé dans le domaine des équipements d'alarme intrusion qui utilisent des liaisons radio ainsi que les exigences s'appliquant à ces équipements. Elle est utilisée conjointement avec les autres parties de la série CEI 62642 qui définissent les exigences fonctionnelles des équipements indépendamment du type de liaisons.

General Information

Status
Published
Publication Date
06-Oct-2010
Current Stage
PPUB - Publication issued
Start Date
07-Oct-2010
Completion Date
07-Oct-2010
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IEC 62642-5-3
Edition 1.0 2010-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Alarm systems – Intrusion and hold-up systems –
Part 5-3: Interconnections – Requirements for equipment using radio frequency
techniques
Systèmes d'alarme – Systèmes d'alarme contre l'intrusion et les hold-up –
Partie 5-3: Interconnexions – Exigences pour les équipements utilisant des
techniques radio fréquence
IEC 62642-5-3:2010
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62642-5-3
Edition 1.0 2010-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Alarm systems – Intrusion and hold-up systems –
Part 5-3: Interconnections – Requirements for equipment using radio frequency
techniques
Systèmes d'alarme – Systèmes d'alarme contre l'intrusion et les hold-up –
Partie 5-3: Interconnexions – Exigences pour les équipements utilisant des
techniques radio fréquence
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX
ICS 13.320 ISBN 978-2-88912-200-4
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – 62642-5-3 © IEC:2010
CONTENTS

FOREWORD...........................................................................................................................4

INTRODUCTION.....................................................................................................................6

1 Scope...............................................................................................................................7

2 Normative references .......................................................................................................7

3 Terms, definitions and abbreviations ................................................................................7

3.1 Terms and definitions ..............................................................................................7

3.2 Abbreviations ..........................................................................................................9

4 General requirements ........................................................................................................9

4.1 Immunity to attenuation.............................................................................................9

4.2 Immunity to collision................................................................................................9

4.2.1 Requirement for collision rate ......................................................................9

4.2.2 Requirement for throughput ratio ...............................................................10

4.3 Immunity to unintentional and intentional component and message

substitution............................................................................................................10

4.3.1 Immunity to unintentional and intentional components substitution ............11

4.3.2 Immunity to intentional message substitution.............................................11

4.4 Immunity to interference........................................................................................11

4.4.1 Interference outside of the assigned band for grades 1 and 2

equipment .................................................................................................11

4.4.2 Interference within the assigned band for grades 1 and 2 equipment .........12

4.4.3 Interference for grades 3 and 4..................................................................12

4.5 Requirement for RF links monitoring......................................................................12

4.5.1 Requirement for the detection of a failure of periodic communication.........12

4.5.2 Requirement for the detection of interference ............................................13

4.6 Requirements for antennas ...................................................................................14

5 Tests ..............................................................................................................................15

5.1 RF disturbance tests .............................................................................................15

5.1.1 Reference level determination ...................................................................15

5.1.2 Test for immunity to attenuation.................................................................15

5.1.3 Verification of immunity to collision............................................................16

5.1.4 Test for throughput ratio ............................................................................16

5.1.5 Test for immunity to unintentional and intentional component and

message substitution.................................................................................16

5.1.6 Tests for immunity to interference..............................................................17

5.1.7 Tests for RF link monitoring.......................................................................18

5.2 Tests for antennas on grades 1 and 2 equipment ..................................................19

5.3 Environmental tests...............................................................................................20

Annex A (normative) Generic test arrangement for receiver .................................................21

Annex B (normative) Test arrangement for interference tests...............................................22

Annex C (informative) Signal levels diagram ........................................................................23

Annex D (normative) Test arrangement for transmitter .........................................................25

Annex E (normative) Calculation for immunity to message substitution ................................26

Annex F (normative) Interference timing diagrams ...............................................................28

Annex G (normative) Test arrangement for detection of interference....................................29

Bibliography..........................................................................................................................30

---------------------- Page: 4 ----------------------
62642-5-3 © IEC:2010 – 3 –

Figure A.1 – Generic test arrangement for receiver...............................................................21

Figure B.1 – Test arrangement for interference tests ............................................................22

Figure C.1 – Signal levels diagram .......................................................................................24

Figure D.1 – Test arrangement for transmitter.......................................................................25

Figure F.1 – Interference timing diagrams.............................................................................28

Figure G.1 – Test arrangement for detection of interference .................................................29

Table 1 – Immunity to attenuation ...........................................................................................9

Table 2 – Equipment occupation of the medium ....................................................................10

Table 3 – Throughput ratio....................................................................................................10

Table 4 – Identification codes ...............................................................................................10

Table 5 – Message substitution.............................................................................................11

Table 6 – Interference outside of the assigned band for grades 1 and 2................................11

Table 7 – Interference within the assigned band for grades 1 and 2......................................12

Table 8 – Interference for grades 3 and 4 .............................................................................12

Table 9 – Periodic communication ........................................................................................13

Table 10 – Periodic communication before setting ................................................................13

Table 11 – Detection of interference .....................................................................................13

Table 12 – Detection of interference for equipment ...............................................................14

Table 13 – Level of interference signal .................................................................................14

Table 14 – Requirements for antennas .................................................................................14

Table 15 – Duration of interference signals ...........................................................................19

---------------------- Page: 5 ----------------------
– 4 – 62642-5-3 © IEC:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ALARM SYSTEMS –
INTRUSION AND HOLD-UP SYSTEMS –
Part 5-3: Interconnections –
Requirements for equipment using radio frequency techniques
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 62642-5-3 has been prepared by IEC technical committee 79:

Alarm and electronic security systems.
This standard is based on EN 50131-5-3 (2005).
The text of this standard is based on the following documents:
FDIS Report on voting
79/309/FDIS 79/320/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

---------------------- Page: 6 ----------------------
62642-5-3 © IEC:2010 – 5 –

A list of all parts of the IEC 62642 series can be found, under the general title Alarm systems

– Intrusion and hold-up systems, on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 7 ----------------------
– 6 – 62642-5-3 © IEC:2010
INTRODUCTION

This part 5-3 of the IEC 62642 series of standards gives requirements for interconnections

equipment using radio frequency techniques used in intrusion and hold-up alarm systems.

The other parts of this series of standards are as follows:
Part 1 System requirements
Part 2-2 Intrusion detectors – Passive infrared detectors
Part 2-3 Intrusion detectors – Microwave detectors
Part 2-4 Intrusion detectors – Combined passive infrared / microwave detectors
Part 2-5 Intrusion detectors – Combined passive infrared / ultrasonic detectors
Part 2-6 Intrusion detectors – Opening contacts (magnetic)
Part 2-71 Intrusion detectors – Glass break detectors – Acoustic
Part 2-72 Intrusion detectors – Glass break detectors – Passive
Part 2-73 Intrusion detectors – Glass break detectors – Active
Part 3 Control and indicating equipment
Part 4 Warning devices

Part 5-3 Interconnections – Requirements for equipment using radio frequency techniques

Part 6 Power supplies
Part 7 Application guidelines
Part 8 Security fog devices/systems
---------------------- Page: 8 ----------------------
62642-5-3 © IEC:2010 – 7 –
ALARM SYSTEMS –
INTRUSION AND HOLD-UP SYSTEMS –
Part 5-3: Interconnections –
Requirements for equipment using radio frequency techniques
1 Scope

This part of the IEC 62642 applies to intrusion alarm equipment using radio frequency (RF)

links and located on protected premises. It does not cover long range radio transmissions.

This standard defines the terms used in the field of intrusion alarm equipment using radio

frequency links as well as the requirements relevant to the equipment.

It is used in conjunction with the other parts of the IEC 62642 series that define the functional

requirements of the equipment regardless of the type of interconnections used.
2 Normative references
None.

NOTE Reference to IEC 62642-1 appears only in a Note, as such the reference is indicated in a bibliography at

the last page of the present document.
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
alarm message
message conveying information regarding intruder, tamper or fault alarms
3.1.2
assigned band
frequency band within which the equipment is authorized to operate
3.1.3
attenuation

degradation of the RF signal due to a change in the passive environment of the system after

its installation (e.g. creation, relocation or reflection or absorption materials)

3.1.4
collision

simultaneous transmission from two or more RF communication devices belonging to the

same system, of sufficient signal strength to cause corruption or obliteration of the RF signals

3.1.5
collision rate

probability of two or more messages having part or all of their information coincident on the

RF link leading to a collision
---------------------- Page: 9 ----------------------
– 8 – 62642-5-3 © IEC:2010
3.1.6
communication link
all local equipment, media and protocols used to route messages
3.1.7
disturbance

event originating internally or externally to the system and liable to impair transmission and/or

processing of data in the system
NOTE 1 It can be unintentionally or intentionally harmful.

Causes of disturbance are attenuation, collision, unintentional or intentional message substitution and other RF

interference.
NOTE 2 The different effects which disturbances may have on the signals are
– no corruption of the RF signal,
– corruption of the RF signal with no message corruption,
– corruption of the RF signal with partial message corruption,
– total obliteration of the RF signal (inability to receive).
3.1.8
failure of periodic communication
inability to pass a message on an RF link
3.1.9
identification code

part of a message used to identify a transmitting RF communication device belonging to the

system
3.1.10
intentional message substitution

deliberate transmission from an RF communication device using the correct protocol with the

intention of reducing the security of the system
3.1.11
message authentication

exchange of codes to validate the uniqueness of a transmitting device to a receiving device

3.1.12
monitoring message
message used to check the integrity of the communication link
3.1.13
RF interference

RF emission from any other source, that may cause corruption or obliteration of wanted

signals and do not conform to the definition of collision or message substitution

3.1.14
RF communication device
device using RF transmission links
3.1.15
throughput ratio

ratio of the total number of messages sent by the transmitting device to the total number of

messages correctly interpreted by the receiving device
---------------------- Page: 10 ----------------------
62642-5-3 © IEC:2010 – 9 –
3.1.16
unintentional message substitution

non-deliberate transmission from an RF communication device using the correct protocol

emanating from another system with no intention of reducing the security
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
ATE alarm transmission equipment
CIE control and indicating equipment
RF radio frequency
RL reference level
TL transmitted level
WD warning device
4 General requirements
4.1 Immunity to attenuation

Due to the fact there may be changes in the passive environment after installation, it shall be

possible to temporarily attenuate the RF link during installation or maintenance according to

the values given in Table 1.

The manufacturer shall specify the means used on its equipment to fulfil this requirement.

Table 1 – Immunity to attenuation
Attenuation
Grade 1 3 dB
Grade 2 6 dB
Grade 3 9 dB
Grade 4 12 dB
NOTE Grades are defined in IEC 62642-1.
4.2 Immunity to collision
4.2.1 Requirement for collision rate

The objective of the requirement for collision rate is to ensure a high level of confidence in the

transmissions of alarm and monitoring messages thus reducing the probability of equipment

on the same system causing interference by design and possibly leading to loss or corruption

of information. To keep the collision rate as small as possible, the following requirements

given in Table 2 shall be fulfilled.
---------------------- Page: 11 ----------------------
– 10 – 62642-5-3 © IEC:2010
Table 2 – Equipment occupation of the medium
Maximum occupation In a period of time of
(percentage)
Grade 1 10 % 240 min
Grade 2 10 % 120 min
Grade 3 10 % 100 s
Grade 4 10 % 10 s

In addition, all regulatory requirements concerning the duty cycle shall be complied with. To

ensure successful transmissions for grade 3 and 4 equipment, all types of messages (i.e.

alarm, monitoring, etc) shall be acknowledged by the receiving equipment to the transmitting

equipment. In the case of one alarm message colliding with one monitoring message, the

alarm information shall in any case be received in less than 10 s.
4.2.2 Requirement for throughput ratio

The objective of this requirement is to measure the ability of the receiving equipment to

accurately interpret and execute correct alarm messages.
Receiving equipment shall comply with the requirements of Table 3.
Table 3 – Throughput ratio
Minimum number of correctly
interpreted messages
Grade 1 999 out of 1 000
Grade 2 999 out of 1 000
Grade 3 9 999 out of 10 000
Grade 4 9 999 out of 10 000
4.3 Immunity to unintentional and intentional component and message substitution

Intentional message substitution generally attempts to reduce the security of the system

primarily by falsely unsetting it. Unintentional message substitution generally causes false

alarms or tamper alarms and has a nuisance value.

In order to prevent both unintentional and intentional message substitution, each transmitting

device shall be identified as belonging to the system by an identification code. The number of

identification code possibilities shall be at least equal to those shown in Table 4.

Table 4 – Identification codes
Identification codes
Grade 1 100 000
Grade 2 1 000 000
Grade 3 10 000 000
Grade 4 100 000 000
---------------------- Page: 12 ----------------------
62642-5-3 © IEC:2010 – 11 –
4.3.1 Immunity to unintentional and intentional components substitution
For grade 4 equipment, the CIE shall have means to detect substitution.
4.3.2 Immunity to intentional message substitution

To decrease the risk of intentional message substitution, the equipment shall fulfil a

requirement given by the probability for an intruder to discover the identification code in less

than one hour. The requirements are shown in Table 5.
Table 5 – Message substitution
Probability lower than
Grade 1 5 %
Grade 2 1 %
Grade 3 0,5 %
Grade 4 0,05 %
For grade 3 and grade 4 equipment, the receiving equipment shall have message
authentication.
4.4 Immunity to interference

The purpose of this requirement is to check the ability of the receiving equipment to

discriminate between the desired signal and the interfering RF signals.

This immunity to interference requirement applies to all RF receiving equipment. Each of the

interference signals defined below shall be applied and shall not cause false alarms or an

indication of a failure of periodic communication.

During continuous application of the interfering signals whose levels are defined in

subsequent clauses, all of the 20 system relevant messages (sent by the transmitting

equipment used for test purposes) shall be correctly received and processed by the receiving

equipment.
4.4.1 Interference outside of the assigned band for grades 1 and 2 equipment

The receiving equipment shall be fully functional when the level of interference (defined as

Level B in Annex C) is applied at frequency F as stated in 4.4 and subsequently at frequency

F and according to the values of Table 6.

F equals (F – 5 % F ) where F is the lowest frequency used by the equipment in the

1 min min min
assigned band and F (F + 5 % F ) where F is the highest frequency used by the
2 max max max
equipment in the assigned band.

In the event of the receiving equipment operating in more than one assigned band, the

requirement shall be fulfilled for each individual assigned band.
Table 6 – Interference outside of the assigned band for grades 1 and 2
F F
1 2
Level B Level B
Grade 1 10 V/m 10 V/m
Grade 2 10 V/m 10 V/m
---------------------- Page: 13 ----------------------
– 12 – 62642-5-3 © IEC:2010
4.4.2 Interference within the assigned band for grades 1 and 2 equipment

The receiving equipment shall be fully functional when the level of interference (defined as

Level C in Annex C) is applied to a test frequency known as F and according to the values of

Table 7:

a) for receiving equipment using a single frequency known as F , F shall be equal to F ;

w t w

b) for receiving equipment using two or more separate frequencies in the same assigned

band, F shall be equal to (F + F ) / 2, where F is the lowest frequency used by
t min max min

the equipment and F is the highest frequency used by the equipment in the assigned

max
band;

c) for receiving equipment using one or more separate frequencies in separate assigned

bands, the test shall be conducted separately for each assigned band.
Table 7 – Interference within the assigned band for grades 1 and 2
Level C
Grade 1 (Level A) – 12 dB
Grade 2 (Level A) – 12 dB
NOTE Level A is defined in 5.1.6.2.
4.4.3 Interference for grades 3 and 4

The receiving equipment shall be fully functional when the level of interference (defined as

Level D in Annex C) is applied separately at F , F and finally F , where F is as defined in

t 1 2 t
4.4.2, and F and F are as defined in 4.4.1 and according to the values given i
...

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