EN 50132-1:2010

SLOVENSKI STANDARD
01-december-2010
Alarmni sistemi - Nadzorni sistemi CCTV za uporabo v aplikacijah varovanja - 1.
del: Sistemske zahteve
Alarm systems - CCTV surveillance systems for use in security applications - Part 1:
System requirements
Alarmanlagen - CCTV-Überwachungsanlagen für Sicherungsanwendungen - Teil 1:
Systemanforderungen
Systèmes d’alarme - Systèmes de surveillance CCTV à usage dans les applications de
sécurité - Partie 1: Exigences système
Ta slovenski standard je istoveten z: EN 50132-1:2010
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
33.160.40 Video sistemi Video systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50132-1
NORME EUROPÉENNE
March 2010
EUROPÄISCHE NORM
ICS 13.310;33.160.40
English version
Alarm systems -
CCTV surveillance systems for use in security applications -
Part 1: System requirements
Systèmes d’alarme -  Alarmanlagen -
Systèmes de surveillance CCTV à usage CCTV-Überwachungsanlagen
dans les applications de sécurité - für Sicherungsanwendungen -
Partie 1: Exigences système Teil 1: Systemanforderungen

This European Standard was approved by CENELEC on 2010-03-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50132-1:2010 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 79, Alarm systems. It was
submitted to the formal vote and approved by CENELEC on 2010-03-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights.
The following dates were fixed:
– latest date by which the EN has to be implemented

at national level by publication of an identical

national standard or by endorsement
(dop) 2011-03-01
– latest date by which the national standards conflicting

with the EN have to be withdrawn
(dow) 2013-03-01
EN 50132 will consist of the following parts, under the general title Alarm systems – CCTV surveillance
systems for use in security applications:
Part 1: System requirements;
Part 5: Video transmission;
Part 7: Application guidelines.
____________
– 3 – EN 50132-1:2010
Contents
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Definitions and abbreviations . 7
3.1 Def initions . 7
3.2 Abbreviations . 20
4 Functional description of the CCTV system (informative) . 21
4.1 CCTV system . 21
4.2 Video environment . 22
4.3 System management . 24
4.4 System security . 27
5 Security grading . 27
6 Functional requirements . 28
6.1 Video environment . 29
6.2 System management . 32
6.3 System security . 34
6.4 Environmental requirements . 39
7 Environmental classes . 39
7.1 Generalities . 39
7.2 Environmental Class I – Indoor. 39
7.3 Environmental Class II – Indoor – General . 39
7.4 Environmental Class III – Outdoor – Sheltered . 40
7.5 Environmental Class IV – Outdoor – General . 40
8 Documentation . 40
8.1 System documentation . 40
8.2 Instructions relating to operation . 40
8.3 System component documentation . 40
Annex A (normative) Special national conditions . 41
Bibliography . 42

Figures
Figure 1 – CCTV system . 22
Figure 2 – Example for CCTV system . 23
Figure 3 – Activity management . 26
Figure 4 – Risk and security grades . 28
Tables
Table 1 – Storage . 30
Table 2 – Archiving and backup . 31
Table 3 – System logs . 33
Table 4 – Monitoring of interconnections. 35
Table 5 – Tamper detection . 35
Table 6 – Level of access . 36
Table 7 – Authorisation code requirements . 37
Table 8 – Data access . 37
Table 9 – Access to system logs . 37
Table 10 – Access to system set-up . 38
Table 11 – Data labelling . 38

– 5 – EN 50132-1:2010
Introduction
This European Standard applies to CCTV Systems for surveillance of private and public areas. It includes
four security grades and four environmental classes.
This European Standard is intended to assist CCTV System companies, manufacturers, system integrators,
installer, consultants, owner, users, insurers and law enforcement in achieving a complete and accurate
specification of the surveillance system. This European Standard does not specify the type of technology or
the required image quality needed for a certain observation task.
Due to the wide range of CCTV system applications like security, safety, public safety etc. only the minimum
requirements are covered in this European Standard.
For achieving an optimal surveillance system in terms of design, planning, operation, installation and
maintenance, follow the Application Guidelines of EN 50132-7:1996. The specified operational requirements
(Clause 5) should enable the above mentioned stakeholders to choose the functions that are important for
their application with due consideration to the risk.
Special National standards apply as well.
This European Standard is not intended to be used for testing individual CCTV components.

1 Scope
This European Standard specifies the minimum requirements for CCTV Surveillance Systems installed for
security applications. This European Standard specifies the minimum performance requirements and
functional requirements to be agreed on between customer and supplier in the operational requirement, but
does not include requirements for design, planning, installation, testing, operation or maintenance (see
Application Guidelines in EN 50132-7:1996). This European Standard excludes installation of remotely
monitored detector activated CCTV systems.
This European Standard also applies to CCTV Systems sharing means of detection, triggering,
interconnection, control, communication and power supplies with other applications. The operation of a
CCTV System shall not be adversely influenced by other applications.
Requirements are specified for CCTV components where the relevant environment is classified. This
classification describes the environment in which the CCTV component may be expected to operate as
designed. When the requirements of the four environmental classes are inadequate, due to the extreme
conditions experienced in certain geographic locations, special national conditions may be applied.
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.
CLC/TS 50398 Alarm systems – Combined and integrated alarm systems – General requirements
EN 50130-4 Alarm systems – Part 4: Electromagnetic compatibility – Product family standard:
Immunity requirements for components of fire, intruder and social alarm systems
EN 50130-5 Alarm systems – Part 5: Environmental test methods
EN 50132-7:1996 Alarm systems – CCTV surveillance systems for use in security applications -
Part 7: Application guidelines
EN 60065 Audio, video and similar electronic apparatus – Safety requirements (IEC 60065)
EN 60950-1 Information technology equipment – Safety – Part 1: General requirements
(IEC 60950-1)
EN 61000-6-3 Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission
standard for residential, commercial and light-industrial environments
(IEC 61000-6-3)
– 7 – EN 50132-1:2010
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
access levels
level of access to particular functions of the CCTV system, defining the user rights of the operator, to control
and configure the system as well as the access to data’s on the CCTV system
3.1.2
acknowledge
action of a user to accept a message or an indication
3.1.3
action
deliberate operation or act by the user which is part of alarm procedure
3.1.4
Advanced Streaming Format
proprietary digital audio/digital video container format, especially meant for streaming media
3.1.5
alarm
warning of the presence of any hazard to life, property or the environment
3.1.6
alarm condition
condition of an alarm system, or part thereof, which results from the response of the system to the presence
of a hazard
3.1.7
alarm message
message from the system to the operator, to describe time, type and location of an alarm
3.1.8
alarm procedure
indications and manual or automatic controls as response to an alarm condition
3.1.9
alarm receiving centre
continuously manned centre to which information concerning the status of one or more alarm systems is
reported
3.1.10
alert
warning addressed to persons in the danger environment or request for human intervention (police, fire
brigade, etc.), caused by alarm, tamper or fault
NOTE Sometimes the term “alarm warning” is used instead.
EXAMPLE Visual-alert, acoustic/ audible-alert, external-alert.
3.1.11
alternative device
CCTV system component of the same type like the primary device

3.1.12
alternative power source
power source capable of powering the system for a predetermined time when a prime power source is
unavailable
3.1.13
archive
data stored on a long term permanent, or partially permanent storage
EXAMPLE CD’s or digital tape are considered to be ‘archived’.
3.1.14
area of interest
region in the scene monitored by an image capturing device
3.1.15
attended operator desk
continuously manned workstation
3.1.16
archiving
see image data backup
3.1.17
audio video interleave format
proprietary multimedia format containing audio and video data in a standard container that allows
synchronous audio-with-video playback
3.1.18
authentication
method to verify whether an image has been altered
3.1.19
authorization
permission to gain access to specified functions or components of a CCTV system
3.1.20
authorisation codes
physical or logical keys which permit access to CCTV functions
3.1.21
automatic number plate recognition
optical character recognition on images to read and extract the alphanumerics of the licence plate of vehicles
3.1.22
automatic teller machine
device that provides a method of financial transactions in public space without the need for a human clerk
3.1.23
backup image
an accurate and complete replica of the primary image, irrespective of media
3.1.24
bandwidth
(relating to interconnection) data transfer rate or amount of data that can be transferred from one point to
another in a given time period
NOTE Bandwidth is quoted in bits per s.

– 9 – EN 50132-1:2010
3.1.25
capacity
(relating to recording) the total amount of stored information that a storage media or medium can hold. It is
expressed as a quantity of bits or bytes
3.1.26
charge coupled device
sensor of imaging device, consisting of an integrated circuit with an array of linked, or coupled, light-sensitive
capacitors
3.1.27
CCTV system
system consisting of camera equipment, storage, monitoring and associated equipment for transmission and
controlling purposes
3.1.28
channel
single path for conveying digital or analogue data, distinguished from other parallel paths
EXAMPLE Video input or output channel.
3.1.29
checksum
unique value or key computed by an algorithm for a data packet, based on the information it contains
NOTE It is passed along with the data to authenticate that the data has not been tampered with. Any change to the image data,
metadata or image sequence would cause a change in the resultant checksum.
3.1.30
compression
the process of reducing the size of a data (image) file
3.1.31
compression rate
ratio of a file’s or image’s uncompressed size compared to its compressed size
NOTE A high compression rate means smaller image files and lower image quality and vice versa.
3.1.32
common interconnection
interconnection used by several video and data channels and/or other applications
3.1.33
communication
transmission of messages and/or signals between CCTV components
3.1.34
component
functional part of the CCTV system
3.1.35
continually
recurring frequently at regular intervals

3.1.36
contrast
(relating to image) difference in visual properties that makes an object (or its representation in an image)
distinguishable from other objects and the background
NOTE In visual perception of the real world, contrast is determined by the difference in the colour and brightness of the object and
other objects within the same field of view.
3.1.37
data
image, meta and other data of the CCTV system
3.1.38
data acquisition
sampling of information to generate data by processing of signals with appropriate sensors converting the
measurement parameter to a signal
3.1.39
data backup
method to store original data in a media with the goal to recover the original data in case of data loss.
destruction or system failure
3.1.40
database
structured collection of records or data. Records are retrieved in answer to queries
3.1.41
data identification
capability to find, retrieve or delete specific data without ambiguity e.g. by the use of unique IDs
3.1.42
data integrity
condition when data has not been modified or altered from its source either maliciously or by accident and in
which data are maintained during any operation, such as transmission, storage, and retrieval, in order to
preserve data for their intended use
3.1.43
data management
management of user-actions, audio-/video-data and general information’s that are not part of the activity
management
3.1.44
data manipulation protection
means to guarantee the integrity of data
EXAMPLE Certified data handling, encryption, watermarking and limited access to the data.
3.1.45
default (by)
parameter settings preset by the system unless changed
3.1.46
digital image
image consisting of pixels using ranges of discrete values
3.1.47
digital video recorder
system that is capable of recording, playback, backup and export of digital images captured by image
sources. A video recorder may consist of one or multiple components, spread across a network

– 11 – EN 50132-1:2010
3.1.48
documentation
(relating to the system) paperwork (or other media) prepared during the design, installation and hand over of
the system recording details of the CCTV system
NOTE Component documentation provided by the manufacturer of the device in paper or on another media.
3.1.49
electronic article surveillance
technological method for preventing shoplifting e.g. from retail stores
3.1.50
encryption
systematic encoding of a bit stream before transmission, so that the information contained in the bit stream
cannot be deciphered by an unauthorised party;
scrambling of digital data that forms an image according to a key based algorithm in such a way that it is
difficult to reconstruct the original recorded image without the key
NOTE A reverse algorithm is required to reconstruct the image. Data encryption shall not prevent authorised users to access the
images.
3.1.51
essential functions
vital functions of a CCTV system, which are image capturing, transmission, recording and/or presentation
3.1.52
event
incident in the real world
EXAMPLE A fire (burning house), an intrusion (broken door) or moving person, a power-failure, a short circuit, presence of an
intruder
3.1.53
event driven action
user or system activity driven by an alarm- or trigger-signal
3.1.54
event recording
event controlled recording or storing of image signals for a pre-determined time
3.1.55
exact copy
transfer of data from original recording location or master copy to secondary storage, if digital as bit for bit
copy
3.1.56
export
transfer of data from the original location to a secondary storage location with a minimum of necessary
changes
3.1.57
external input
external source connected to a dedicated input on the CCTV system
3.1.58
external interconnection
interconnections exchanging data over the boundary of the system

3.1.59
external system
system not directly connected to the CCTV system exchanging data over the boundary of the systems from
outside to inside
3.1.60
failover
capability to switch over automatically to a redundant or standby component or system, upon the failure or
abnormal termination of the previously active component or system
3.1.61
fail-safe
function or method which ensures that a failure of equipment, process, or system does not propagate beyond
the immediate environs of the failing entity
EXAMPLE A device causing no harm or at least a minimum of harm to other devices or hazards to personnel on failure or operator
error.
NOTE A fail-safe system has been designed in a way that the probability of a failure is extremely low to accomplish its assigned
mission regardless of environmental factors.
3.1.62
fault
condition of the system which prevents the CCTV system or parts thereof functioning normally
3.1.63
fault message
message from the system to the operator, to describe time, type and location of a fault
3.1.64
fingerprint
method of generating a unique ‘fingerprint’ of the original recorded image that cannot be reproduced if the
image is altered
3.1.65
frame rate
numbers of frames per second
3.1.66
graphics interchange format
8-bit-per-pixel bitmap image format
3.1.67
hazard
danger criteria of any event or incident, used to be detected by a sensor
EXAMPLE Smoke or movement.
3.1.68
illumination
(related to imaging device) level of illumination (illuminance) at the sensor of the imaging device;
(related to scene) level of illumination (illuminance) on the area to be kept under surveillance
3.1.69
image
visible representation of a frame as rectangular grid of pixels; see also picture

– 13 – EN 50132-1:2010
3.1.70
image analysis
extraction of quantitative information from an image beyond which is readily apparent through visual
examination
3.1.71
image capturing
transformation of images from an optical- or scanning-device in video-signals or digital data format
3.1.72
image handling
any activity that transforms an input image into an output image with as little changes as possible
3.1.73
image processing
method to change or analyse (digital) images with algorithms or (software) procedures
EXAMPLE Compressing and encryption of images, methods for image content analysis.
3.1.74
image scene
collection of visual information of the physical area being across the width of the imaging sensor where
something occurs (an incident or event)
3.1.75
image sequence
linear group of images handled as one entity, usually time indexed
3.1.76
image source
device that delivers video data
3.1.77
image stream
a series of consecutive images from the same image source which are transmitted from one system
component to another
3.1.78
incident
activity that raises cause for concern that an offence has been, is being or is about to be, committed, or that
an occurrence has taken place warranting specific action by an operator
3.1.79
indication
information (in audible, visual or any other form) provided to assist the user in the operation of a CCTV
system
3.1.80
instant replay
playback of recently recorded images from storage
EXAMPLE Playback of a image sequence right after an incident or event.
3.1.81
interconnections
medium by which messages and/or signals are transmitted between CCTV system components

3.1.82
interface
(relating to system) means to exchange data between the CCTV system and an external system
EXAMPLE Digital inputs.
3.1.83
JPEG
common standard for image compression, defined by the Joint Photographic Experts Group
NOTE The JPEG file format is ISO 10918.
3.1.84
latency time
time delay between the moment something is initiated, and the moment one of its effects begins
NOTE The time from the source sending a signal to the destination receiving it.
3.1.85
liquid crystal display
thin, flat display device made up of any number of colour or monochrome pixels arrayed in front of a light
source or reflector
3.1.86
location identifying data
data which uniquely identifies the physical location of a device
3.1.87
logical authorisation key code
numeric or alphabetic codes entered by an authorized user to gain access to restricted functions or parts of
the CCTV system
3.1.88
key
object with mechanical, logical or electronic code that unlocks a locking mechanism to transform encrypted
data into original data
3.1.89
master copy
backup as identical copy of the original recording, in digital systems an exact bit for bit copy
3.1.90
master image
backup image
3.1.91
maximum storage time
retention period or specified time for which images are to be held in primary storage media
3.1.92
meta data
any secondary information or data associated with images in a CCTV system
EXAMPLE Time and date, text strings, location identifying data, audio and any other associated, linked or processed information.
3.1.93
message
series of signals routed by a network which include identification, function data and the various means for
providing its own integrity, immunity and proper reception

– 15 – EN 50132-1:2010
3.1.94
monitoring
(relating to component condition) process of verifying that interconnections and components are functioning
correctly;
(relating to operator activity) viewing live images in order to detect events or incidents
3.1.95
MPEG
common standard used for coding and compression of moving images, defined by Moving Picture Experts
Group in different versions
NOTE Examples are MPEG-2 and MPEG-4
3.1.96
multiplexer
switching device providing the simultaneous representation of several data streams such as video audio, etc.
via one single transmission media
3.1.97
normal operation
state of the CCTV system when not in power-up or power down procedures
3.1.98
notification
passing an alarm or a message of the CCTV system to an external system
3.1.99
object mask
means to mark an object of the area of interest in the camera image display
3.1.100
obscuring
preventing the imaging device from viewing any part of the area of interest other than by moving the device
3.1.101
operational requirement
key document for system designers, which clearly defines the functions of the CCTV system according to the
customer expectations
NOTE Refer to EN 50132-7:1996, Clause 5 ‘Operational requirements’.
3.1.102
operator
authorised individual (a user) using a CCTV system for its intended purpose
3.1.103
operator log
system log of events and operations which have been handled on a workstation or by a certain operator
3.1.104
original recording
first instance of unaltered images in persistent on-line storage, primary or original image stored on media
suitable for long-term storage
3.1.105
personal digital assistant
handheld computers that were originally designed as personal organizers

3.1.106
physical authorisation key
implement used by an authorized user to gain access to restricted functions or parts of a CCTV system
(mechanical key, magnetic card, electronic token or similar)
3.1.107
physical storage size
size of a storage media expressed in its characteristic unit
EXAMPLE For digital media bytes, gigabyte (GB) or terabyte (TB) are used.
3.1.108
picture
image
3.1.109
pixel
smallest element of an image
NOTE Acronym for picture element.
3.1.110
playback
viewing of previously recorded images from storage media
3.1.111
point of sale data
data generated by a point of sale terminal
3.1.112
power supply
part of the CCTV system to supply the CCTV system with electrical power
3.1.113
presentation
function of CCTV system displaying images and data to the user
3.1.114
prime power source
power source used to support a CCTV system under normal operating conditions
3.1.115
primary image
refers to the first instance in which an image is recorded onto any media
3.1.116
primary storage
storage used to store data that is not in active use and non-volatile for the preservation of stored information
e.g. for later retrieval or in an event of power loss
3.1.117
privacy masking
blocking out or obscuring areas of an image for privacy reasons
3.1.118
protected
maintaining and preventing deletion of stored images,in original condition, for longer than the set retention
time
– 17 – EN 50132-1:2010
3.1.119
redundant array of independent disks
data storage architecture that divides and/or replicates data among multiple hard drives
3.1.120
restore (alarm)
action of a user to change the state of a subsystem or detector from the alarm-, fault- or tamper condition to
its previous condition
3.1.121
repetitive failure
rapidly repeating and duplicating signals for no identifiable reason causing additional or unwanted messages
for the same fault condition
3.1.122
remote operation
operation at remote workstation connected by external interconnections that are not part of the CCTV system
3.1.123
resolution
pixels/inch or number of pixels of a video-frame, monitoring device, print out
3.1.124
recording rate
frame rate for one input channel or a complete recording device
3.1.125
recorded information
any data recorded on any recording medium (e.g. electronic, magnetic or optical) containing information of
events and camera views that have happened in the past
3.1.126
redundancy
methods to secure a system against component failures by doubling elements
EXAMPLE Redundant or fail-safe systems continue operation automatically with a second component in case of failure of the
primary one. For redundant communication the system switches automatically to the second communication channel, if the first channel
does not give a response.
3.1.127
remote video response centre
operation which is continually manned and capable of receiving multiple concurrent CCTV images from
remote locations for the purpose of interacting with site(s) to provide security and related services
3.1.128
remote workstation
secondary or auxiliary control station located at some distance from the CCTV system or the protected
premises
3.1.129
replay
playback of recorded images from storage
3.1.130
response
every control command, change of system conditions or information to external devices or persons driven by
alarms, faults, messages or triggers

3.1.131
response time
time a system or functional unit takes to react to a given input
EXAMPLE The response time of a presentation device is the amount of time a pixel takes to go from active (black) to inactive
(white) or back to active (black) again. It is measured in ms.
3.1.132
risk
likelihood, combined with the effect, of loss damage or harm
3.1.133
scene brightness
observed brightness of the scene, dependent on the scene illumination
3.1.134
secondary storage media
from original recording location separated storage media
3.1.135
sensitivity
(relating to imaging device) necessary level of image device illumination in order to produce an acceptable
image
3.1.136
signal to noise ratio
ratio between the signal strength and the noise levels in an audio or video signal
3.1.137
storage
means for storing data or video for subsequent use or retrieval
EXAMPLE Hard disk, flash drive, CD.
3.1.138
storage media
means where data is stored for later retrieval, viewing or processing
3.1.139
subsystem
part of a CCTV system located in a clearly defined part of the supervised premises capable of independent
operation
3.1.140
surveillance
observation or inspection of persons or premises for security purposes through alarm-systems, CCTV
systems, or other monitoring methods
3.1.141
system configuration
methods to specify a CCTV system in structure of its elements, data handling, log files, data storage
capabilities, user access levels and user control capabilities
3.1.142
system data
system configuration parameters

– 19 – EN 50132-1:2010
3.1.143
system integrity
ability of an application to function as designed and the measure of immunity from influence which could
affect normal operation
3.1.144
system log
chronological list of events or operations which have occurred in the CCTV system, which allows the
reconstruction of a previous activity and records the attributes of a change (such as date/time, operator)
EXAMPLE A record book or its electronic equivalent into which all relevant details of the CCTV system, its operation, performance
and its maintenance can be entered in a secure manner for later retrieval by authorised users.
3.1.145
system management
configuration and control, of the CCTV system as well as the administration of system data and components
3.1.146
system security
protection of the system against failures as tampering, illegal access, vandalism. Controlled physical or
electronic access to the CCTV system or any component to prevent unauthorised access
3.1.147
system set-up
configuration of the system
3.1.148
tamper
unauthorised changes in the system like unauthorised physical access in order to outwit the system or parts
of it
3.1.149
time synchronisation
manual or automatic method to keep the time and date integrity between different components of the CCTV
system, including daylight saving time changes
3.1.150
trajectory lines
means to mark the positions passed by a moving object of the area of interest in the image display
3.1.151
trigger
signal as reaction on an event in order to activate a function or a device
EXAMPLE A moving person switch on a recording device.
3.1.152
user action
deliberate input from an operator to the system to monitor, control the system or to change conditions
EXAMPLE Switch camera x to monitor y.
3.1.153
user interface
means by which a user operates a CCTV system

3.1.154
video content analysis
analysis of live or recorded video to detect activities, events or behaviour patterns as defined in the
operational requirements
3.1.155
video loss
system failure, when the video signal from a capturing device is missing
3.1.156
video matrix
unit for connecting several input video signals to several outputs
3.1.157
video recorder
device to record and replay video
3.1.158
video motion detection
algorithm, procedure or device to generate an alarm condition in response to a change of the contents of a
given image sequence
3.1.159
watermark
form of checksum, describes changes in pixel values to incorporate information, which changes if the image
file is altered without compromising the integrity of the original recorded digital image
3.1.160
workstation
control station for user operation
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
AOI Area Of Interest
ANPR Automatic Number Plate Recognition
ARC Alarm Receiving Centre
ASF Advanced Streaming Format
ATM Automatic Teller Machine
AVI Audio Video Interleave Format
B/W Black/White
CCD Charge Coupled Device
CD Compact Disc
CRT Cathode Ray Tube
EAS Electronic Article Surveillance, anti-shoplifting system
FPS Frames Per Second (frame rate)
GIF Graphics Interchange Format

– 21 – EN 50132-1:2010
ISO International Standards Organization
JPEG Joint Photographic Experts Group
LCD Liquid Crystal Display
MPEG Moving Picture Experts Group
PDA Personal Digital Assistant
POS Point Of Sales data
RAID Redundant Array of Independent Disks
RVRC Remote Video Response Centre
SNR Signal to Noise Ratio
VCA Video Content Analysis
VMD Video Motion Detection
4 Functional description of the CCTV system (informative)
4.1 CCTV system
A CCTV system usually consists of equipment containing analogue and digital devices as well as software.
Because the technology and, with it, the CCTV equipment and their functionalities develop and change very
rapidly, single devices and their requirements are not defined. Instead, this clause defines and describes the
CCTV system as functional parts together with the relationships between them.
A CCTV system for security applications can be presented as functional blocks which portray the various
parts and functions of the system (see Figure 1).

Image capture Interconnections Image handling
Video environment
Activity and data management Interfacing to other systems
System management
System integrity Data integrity
System security
Figure 1 – CCTV system
4.2 Video environment
4.2.1 General
The purpose of a CCTV system is to capture images of a scene, handle the images and display them to the
operator. The entity consisting of CCTV devices and interconnections between the devices can be described
as video environment.
Instead of defining the actual devices that make up the CCTV system, the video environment is defined here
in three functions:
• generation of video images (image capture);
• transmission and routing of video images and control signals (interconnections); and
• presentation, storage and analysis of the images (image handling).
The above-mentioned functions may reside in various hardware or software components of the system. Note
that these functions do not necessarily always match up with separate devices, as several functions can be
performed by a single device. As an example, a network camera device can capture the image (image
capturing), store it temporarily (image handling), analyse it for VMD (image processing) and transmit it via
the network (interconnections). Alternatively several devices in one system can perform the same function.

– 23 – EN 50132-1:2010
Figure 2 shows a simple practical example of the video environment:
Image capturing              Image handling

Interconnections
Figure 2 – Example for CCTV system
4.2.2 Image capture
The purpose of image capture is to generate and deliver an image of the real world in a format that can be
used by the rest of the CCTV system.
The purpose of Image Capturing is to generate an image of the scene for later processing by the CCTV
system. An image source captures an image of the scene, creates image data and delivers that data to the
image handling functionality using the system interconnections. The image data can be in analogue (e.g.
composite video) or digital (e.g. JPEG, MPEG-4) format.
4.2.3 Interconnections
Interconnections describe all transmission of data within the video environment. This includes two functions:
connections and communications.
The communications describe all video and control data signals, which are exchanged between system
components. These signals may be analogue or digital.
Connections cover the media used for the communication signals. Examples of connections are cables (e.g.
twisted pair, coaxial or optical fibre), digital networks, wireless transmission as well as equipment like a
multiplexer or video matrix.
A CCTV system can be divided into components that are communicating through interconnections, which are
not dedicated to the CCTV system. An example is a network which is shared with other applications.
4.2.4 Image handling
4.2.4.1 Generalities
The functions of image handling include analysis, storage and presentation of an image or a sequence of
images. The same functions can also be applied to other data (e.g. audio stream) and meta data. A CCTV
system does not necessarily contain all of these functions.
Image handling can be performed by one or several devices that make up the CCTV system (e.g. monitors,
recorders, image analysers, intelligent cameras and remote workstations). One device can also handle
several image handling tasks (e.g. digital video recorder).
During image handling the images may be changed e.g. in resolution, frame rate and compression.
4.2.4.2 Analysis
The video data that makes up the images can be analysed in order to extract information from live or
recorded video data. In addition to the video data the analysis function can also use other data (e.g. audio
stream) or meta data as inputs.

Analysis can be utilized for several purposes:
• proving the integrity of the system (e.g. camera position);
• interpreting the captured scene (e.g. automatic number plate recognition);
• detecting an event which may trigger an alarm (e.g. moving person or smoke detection).
4.2.4.3 Storage
The video image data (as well as other data or meta data) can be stored on a storage medium (e.g.
...