SIST EN IEC 62676-4:2026

Video surveillance systems for use in security applications - Part 4: Application guidelines (IEC 62676-4:2025)

IEC 62676-4:2025 describes the planning, design, installation, testing, commissioning, and maintaining of video surveillance systems (VSS) comprising image capture device(s), interconnection(s) and image handling device(s), for use in security applications within private or public spaces.

Videoüberwachungsanlagen für Sicherungsanwendungen - Teil 4: Anwendungsregeln (IEC 62676-4:2025)

Systèmes de vidéosurveillance destinés à être utilisés dans les applications de sécurité - Partie 4: Directives d'application (IEC 62676-4:2025)

L’IEC 62676-4:2025 décrit la planification, la conception, l’installation, les procédures d’essai, la mise en service et l’entretien des systèmes de vidéosurveillance (VSS) comprenant un ou plusieurs dispositifs de capture d’images, une ou plusieurs interconnexions et un ou plusieurs dispositifs de manipulation d’images, destinés à être utilisés dans des applications de sécurité dans des espaces privés ou publics.

Video nadzorni sistemi za varnostne aplikacije - 4. del: Smernice za uporabo (IEC 62676-4:2025)

General Information

• Status: Not Published
• Public Enquiry End Date: 30-Dec-2024
• ICS: 13.320 - Alarm and warning systems
• ICS: 33.160.40 - Video systems
• Technical Committee: EAL - Alarm systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Dec-2025
• Due Date: 09-Feb-2026
• Ref Project: EN IEC 62676-4:2025 - Video surveillance systems for use in security applications - Part 4: Application guidelines

Relations

• Revises: SIST EN 62676-4:2015 - Video surveillance systems for use in security applications - Part 4: Application guidelines
• Effective Date: 28-Feb-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 62676-4:2024
01-december-2024
Video nadzorni sistemi za varnostne aplikacije - 4. del: Smernice za uporabo
Video surveillance systems for use in security applications - Part 4: Application
guidelines
Videoüberwachungsanlagen für Sicherungsanwendungen - Teil 4: Anwendungsregeln
Systèmes de vidéosurveillance destinés à être utilisés dans les applications de sécurité -
Partie 4: Directives d'application
Ta slovenski standard je istoveten z: prEN IEC 62676-4:2024
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
33.160.40 Video sistemi Video systems
oSIST prEN IEC 62676-4:2024 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 62676-4:2024
oSIST prEN IEC 62676-4:2024
79/713/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62676-4 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-10-25 2025-01-17
SUPERSEDES DOCUMENTS:
79/701/CD, 79/705A/CC
IEC TC 79 : ALARM AND ELECTRONIC SECURITY SYSTEMS
SECRETARIAT: SECRETARY:
France Mr Jean-François LIGNEREUX
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
Information security and data privacy
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which t hey
are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clau ses
to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC
clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Video surveillance systems for use in security applications - Part 4: Application guidelines

PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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1 CONTENTS
3 FOREWORD . 7
4 1 Scope . 9
5 2 Normative references . 9
6 3 Terms, definitions and abbreviations . 10
7 3.1 Terms and definitions . 10
8 3.2 Abbreviations . 18
9 4 Planning considerations . 19
10 4.1 General considerations . 19
11 4.2 Security concept . 20
12 4.2.1 General . 20
13 4.2.2 Risk assessment . 21
14 4.2.3 Selection of security grades . 22
15 4.3 Developing the operational requirements . 23
16 4.4 Site survey . 23
17 4.5 Security of the VSCC room . 23
18 4.6 System design including site plan . 24
19 4.7 Developing the test plan . 24
20 4.8 Installation, commissioning and hand over . 24
21 4.9 Documenting the system . 24
22 5 Operational requirements specifications . 25
23 5.1 General . 25
24 5.2 Purpose of the operational requirements . 25
25 5.3 Content of the operational requirements . 25
26 5.3.1 General . 25
27 5.3.2 Basic objective/functionalities . 25
28 5.3.3 Definition of surveillance limitations . 25
29 5.3.4 Definition of the site(s) under surveillance . 26
30 5.3.5 Definition of activity to be captured . 26
31 5.3.6 System/picture performance . 26
32 5.3.7 Period of operation . 26
33 5.3.8 Conditions at the location . 26
34 5.3.9 Resilience . 26
35 5.3.10 Monitoring and image storage . 26
36 5.3.11 Exporting images . 27
37 5.3.12 Routine actions . 27
38 5.3.13 Operational response . 27
39 5.3.14 Operator workload . 27
40 5.3.15 Training . 27
41 5.3.16 Expansions . 27
42 5.3.17 List of any other special factors not covered by the above . 27
43 5.4 System operational criteria . 28
44 5.4.1 General . 28
45 5.4.2 Automation . 28
46 5.4.3 Alarm response . 28

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47 5.4.4 System response times . 28
48 6 Technical considerations (equipment selection and performance) . 29
49 6.1 General . 29
50 6.2 Camera equipment . 30
51 6.3 Camera and lens selection criteria . 30
52 6.4 Camera selection . 30
53 6.4.1 General . 30
54 6.4.2 PTZ . 31
55 6.5 Lens and housing selection . 31
56 6.6 Site coverage/numbers of cameras . 32
57 6.7 Object sizes and Pixel Density . 32
58 6.7.1 General . 32
59 6.7.2 Object size definitions and Required Pixel Density in IP VSS . 33
60 6.8 Field of view – Other considerations . 36
61 6.9 Illumination . 36
62 6.10 IP Video equipment . 38
63 6.11 Tamper protection/detection . 38
64 6.11.1 Camera tamper protection/detection . 38
65 6.11.2 System tamper protection/detection . 39
66 6.12 System integration . 39
67 7 Video signal presentation . 39
68 7.1 Display types . 39
69 7.2 Resolution . 41
70 8 Transmission . 42
71 8.1 Principles . 42
72 8.1.1 General . 42
73 8.1.2 Selection of IP video performance classes . 42
74 8.1.3 Interoperability . 43
75 8.1.4 Interoperability with voice communication . 44
76 8.2 Wired transmission links . 44
77 8.3 Wireless transmission links . 44
78 8.4 Key considerations for IP based transmission systems . 45
79 9 Video performance characteristics . 46
80 9.1 Image compression . 46
81 9.2 Frame rate . 47
82 9.3 Resolution . 47
83 10 Storage requirements . 47
84 11 Image storage and export . 48
85 11.1 Format of the compressed video data . 48
86 11.2 Encryption . 49
87 11.3 Basic metadata (time, date, camera identifier) . 49
88 11.4 Multiplexing format . 49
89 11.5 Image enhancements . 50
90 11.6 Image export . 50
91 11.7 Replay of exported images . 50
92 12 VSCC control room configuration . 51
93 12.1 Control rooms or Secure Viewing Area . 51
94 12.2 Number, size and positioning of VSS video displays . 51

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95 12.3 Displays and screens mounted on or off the workstation . 51
96 12.4 Recommended display sizes . 52
97 12.5 Number of camera images per operator . 52
98 12.6 Number of work stations . 52
99 12.7 Equipment siting . 53
100 12.8 Backup power supply provision . 53
101 12.9 Operating temperature . 53
102 12.10 Lightning and surge protection . 53
103 13 Defining the test plan . 53
104 13.1 Purpose of the test plan . 53
105 13.2 User acceptance testing/inspection . 54
106 13.3 Technical acceptance testing . 54
107 13.3.1 Imaging chain consistency . 54
108 13.3.2 Image quality . 54
109 14 Documentational considerations (Pre-installation) . 56
110 14.1 General . 56
111 14.2 Risk assessment . 56
112 14.3 Operational requirements . 56
113 14.4 Design specification . 56
114 14.5 Site plan . 56
115 14.6 Test plan . 57
116 15 System installation and commissioning . 57
117 15.1 Factory acceptance testing . 57
118 15.2 Installation process . 57
119 15.3 User acceptance testing, commissioning and handover. 58
120 15.4 Declaration of conformance to standards . 58
121 16 Final documentation . 58
122 16.1 General . 58
123 16.2 Complete system drawings . 59
124 16.3 System commission (with camera specific audits) . 59
125 16.4 Interface descriptions . 59
126 16.5 Operating logbook VSS . 59
127 16.6 Compliance with legislation (for information) . 59
128 17 Operation of VSS . 60
129 17.1 General . 60
130 17.2 Behaviour in the event of malfunctions . 61
131 17.3 At-site visual check . 61
132 17.4 Deviation of requirements for at-site visual checks and maintenance . 62
133 17.5 Maintenance . 62
134 17.6 Inspection (part of preventive maintenance) . 62
135 17.7 Service Checks (part of preventive maintenance) . 64
136 17.8 Repair (corrective maintenance) . 64
137 17.9 Improvement . 64
138 Annex A (informative) Video standard formats . 65
139 A.1 Current video standard format . 65
140 A.2 Pixel densities for recognition of other objects of interest . 65
141 Annex B (normative) Test protocol for VSS target . 66
142 B.1 Scope of the test . 66

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143 B.2 Test prerequisites . 66
144 B.3 Preconditions . 66
145 B.4 Face selection . 66
146 B.5 Live view methodology (faces) . 67
147 B.6 Live view methodology (VRN) . 67
148 B.7 Recorded view methodology (faces). 67
149 B.8 Recorded view methodology (VRN) . 68
150 B.9 Motion. 68
151 B.10 Faces: scoring criteria . 68
152 B.11 VRN: scoring criteria . 69
153 B.12 Heads control sheet (for example only) . 71
154 B.13 VRN control sheet (for example only) . 72
155 Annex C (normative) Test method of image quality Guidance for the use of the video
156 test target . 73
157 Annex D (informative) Guide to specifying VSS parameters and security gradings . 79
158 D.1 VSS parameters . 79
159 D.2 Suggested building blocks . 79
160 D.3 Security gradings . 80
161 D.4 Security grading by system view: . 80
162 D.5 Security grading by size view: . 80
163 D.6 Security grading by application view . 81
164 D.7 Number of frames depending on the object speed in a scene width . 83
165 Annex E (normative) Detection response testing and acceptability criteria . 85
166 E.1 General . 85
167 E.2 False and nuisance alarms . 85
168 E.3 Setting the response time . 86
169 E.4 PTZ response time test procedure . 86
170 E.5 Observer cueing and prompting . 86
171 E.6 Detection test locations . 87
172 E.7 Target camouflage . 87
173 E.8 Tests with moving targets . 87
174 E.9 Test conditions . 87
175 E.10 Testing a 'live' system . 88
176 E.11 Detection test results tables . 88
177 Bibliography . 89
179 Figure 1 – structure of a security concept . 21
180 Figure 2 – HD and UHD screen percentages occupied by various categories . 35
181 Figure 3 – Pixel Density formula . 35
182 Figure 4 – Operation of a VSS . 60
183 Figure B.1 – Heads control sheet . 71
184 Figure B.2 – VRN control sheet example . 72
185 Figure C.1 – Test charts . 75
186 Figure C.2 – Key to Figure C.1. 77
187 Figure C.3 – Avoiding optical distortion . 78
189 Table 1 – Measures depending on Security Grades . 24

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190 Table 2 – Example System feedback – PTZ Control Responding time, performance and
191 operator . 29
192 Table 3 – Typical Lux level . 37
193 Table 4 – Examples of display technologies . 40
194 Table 5 – Example Resolutions . 41
195 Table 6 – Wireless transmission options . 45
196 Table 7 – Inspection cycles versus security grading . 60
197 Table A.1 – Recommendations for recognition of some “non-human” objects . 65
198 Table B.1 – Example auditor log sheet . 69
199 Table B.2 – Example control room observer log sheet . 69
200 Table B.3 – Example camera audit sheet . 69
201 Table B.4 – Blank auditor log sheet . 70
202 Table B.5 – Blank control room observer log sheet . 70
203 Table B.6 – Blank camera audit sheet . 70
204 Table C.1 – Test targets . 73
205 Table D.1 – Suggested VSS building blocks . 79
206 Table D.2 – Security grading by size view . 81
207 Table D.3 – Security grading by application . 82
208 Table D.4 – Security grading by critical infrastructure . 83
209 Table D.5 – Number of frames depending of object speed - Low Pixel Density Objects . 84
210 Table D.6 – Number of frames depending of object speed - High Pixel Density Objects . 84
211 Table E.1 – Detection test results . 88
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216 INTERNATIONAL ELECTROTECHNICAL COMMISSION
217 ____________
219 VIDEO SURVEILLANCE SYSTEMS FOR
220 USE IN SECURITY APPLICATIONS –
222 Part 4: Application guidelines
224 FOREWORD
225 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
226 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
227 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
228 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
229 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
230 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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233 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
234 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
235 consensus of opinion on the relevant subjects since each technical committee has representation from all
236 interested IEC National Committees.
237 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
238 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
239 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
240 misinterpretation by any end user.
241 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
242 transparently to the maximum extent possible in their national and regional publications. Any divergence between
243 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
244 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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246 services carried out by independent certification bodies.
247 6) All users should ensure that they have the latest edition of this publication.
248 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
249 members of its technical committees and IEC National Committees for any personal injury, property damage or
250 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
251 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
252 Publications.
253 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
254 indispensable for the correct application of this publication.
255 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
256 patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
257 respect thereof. As of the date of publication of this document, IEC [had/had not] received notice of (a) patent(s),
258 which may be required to implement this document. However, implementers are cautioned that this may not
259 represent the latest information, which may be obtained from the patent database available at
260 https://patents.iec.ch. IEC shall not be held responsible for identifying any or all such patent rights.
261 IEC 62676-4 has been prepared by Technical Committee 79: ALARM AND ELECTRONIC
262 SECURITY SYSTEMS. It is an International Standard.
263 This 2nd edition cancels and replaces the 1st edition published in 2014. This edition constitutes
264 a technical revision.
265 This edition includes the following significant technical changes with respect to the previous
266 edition:
267 a) .;
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269 The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
271 Full information on the voting for its approval can be found in the report on voting indicated in
272 the above table.
273 The language used for the development of this International Standard is English [change
274 language if necessary].
275 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
276 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
277 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
278 described in greater detail at www.iec.ch/publications.
279 The committee has decided that the contents of this document will remain unchanged until the
280 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
281 specific document. At this date, the document will be
282 • reconfirmed,
283 • withdrawn, or
284 • revised.
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286 VIDEO SURVEILLANCE SYSTEMS FOR
287 USE IN SECURITY APPLICATIONS –
289 Part 4: Application guidelines
293 1 Scope
294 This part of IEC 62676 gives recommendations and requirements for the, planning, design,
295 installation, testing, commissioning, and maintaining of Video Surveillance Systems (VSS)
296 comprising of image capture device(s), interconnection(s) and image handling device(s), for
297 use in security applications within private or public spaces.
298 The objectives of this part of IEC 62676 are to:
299 b) provide a framework to assist all interested parties in establishing their requirements,
300 c) assist specifiers and users in determining the appropriate equipment required for a given
301 application,
302 d) provide means of evaluating objectively the performance of the VSS.
303 2 Normative references
304 The following documents, in whole or in part, are normatively referenced in this document and
305 are indispensable for its application. For dated references, only the edition cited applies. For
306 undated references, the latest edition of the referenced document (including any amendments)
307 applies.
308 IEC 31010, Risk management - Risk assessment techniques
309 IEC 62305 (series), Protection against lightning
310 IEC 62305-3, Protection against lightning – Part 3: Physical damage to structures and life
311 hazard
312 IEC 62305-4, Protection against lightning – Part 4: Electrical and electronic systems within
313 structures
314 IEC 62676-1-1: Video surveillance systems for use in security applications – Part 1-1: System
315 Requirements
317 IEC 62676-1-2: Video surveillance systems for use in security applications – Part 1-2: General Video
318 Transmission Requirements
320 IEC 62676-2-1: Alarm systems – Video surveillance systems for use in security applications – Part 2-
321 1: Video Transmission Protocols – General Requirements
323 IEC 62676-2-31: Video surveillance systems for use in security applications - Part 2-31: Live
324 streaming and control based on web services
325 IEC 62676-2-32: Video surveillance systems for use in security applications - Part 2-32:
326 Recording control and replay based on web services
327 IEC 62676-2-33: Video surveillance systems for use in security applications - Part 2-33: Video
328 transmission protocols – Cloud uplink and remote management system access

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329 IEC 62676-3:Video surveillance systems for use in security applications– Part 3: Analog and digital
330 video interfaces
332 IEC 62676-5: Video surveillance systems for use in security applications - Part 5: Data
333 Specifications and Image Quality Performance for Camera devices
335 IEC 62820-2: Building intercom systems – Part 2: Requirements for advanced security
336 building intercom systems (ASBIS)
338 IEC 62820-3-2: Building intercom systems – Part 3-2: Application Guidelines – Advanced
339 security building intercom systems (ASBIS)
341 ISO 31000: Risk management - Guidelines
342 ISO/IEC 11801 (series), Information technology - Generic cabling for customer premises
343 ISO/IEC 13818-1, Information technology — Generic coding of moving pictures and associated
344 audio information — Part 1: Systems
345 ISO/IEC 14496-2, Information technology — Coding of audio-visual objects — Part 2: Visual
346 ISO/IEC 14496-10, Information technology — Coding of audio-visual objects — Part 10:
347 Advanced video coding
348 ISO/IEC 15444-1, Information technology — JPEG 2000 image coding system — Part 1: Core
349 coding system
350 ISO/IEC 19794-5, Information technology — Biometric data interchange formats — Part 5: Face
351 image data
352 ITU-T Rec. T.81 / ISO/IEC 10918-1, Information technology — Digital compression and coding
353 of continuous-tone still images: Requirements and guidelines — Part 1: Requirements and
354 guidelines
355 ITU-T Rec. H.263, Video coding for low bit rate communication
356 ITU-T Rec. H.264, Advanced video coding for generic audiovisual services
357 ITU-T Rec. H.265, High efficiency video coding
358 ITU-R BT601, Standard to define how digital interlaced video signals to be coded (also formerly
359 known as CCIR 601)
361 3 Terms, definitions and abbreviations
362 3.1 Terms and definitions
363 For the purposes of this document, the following terms and definitions apply.
364 3.1.1
365 4K (UHD)
366 The standard for Ultra High-Definition television (UHDTV) defined by SMPTE2036 to be with
367 3.840 x 2.160 pixels at 25 or 30 fps.

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368 3.1.2
369 8K (UHD)
370 The standard for Ultra High-Definition television (UHDTV) defined by SMPTE2036 to be with
371 7.680 x 4.320 pixels at 25 or 30 fps.
372 3.1.3
373 At-site visual check
374 Activity to determine and assess the feasibility of implementing the safety concept per camera
375 location to be monitored as well as checks of visible disturbances and defects - in particular for
376 influences occurring outside of VSS system parts - on the monitoring tasks of a VSS that are
377 not evaluated operationally and whether there are deviations from the function of the VSS
378 required in the safety concept. The at-site visual check is the responsibility of the operator, who
379 may, however, hand over the inspection to a competent person VSS or to a competent system
380 engineer VSS.
381 3.1.4
382 camera housing
383 enclosure to provide physical and/or environmental protection of the camera, lens and ancillary
384 equipment
385 3.1.5
386 camera sensitivity
387 Image capturing device capability to produce an image in certain light conditions
388 3.1.6
389 characterise
390 Minimum requirement of a VSS camera to characterise a target, e.g. persons (type of person,
391 gait and actions can be characterised) and vehicles (vehicle brands can be characterised) with
392 a display of > 250 pixel/metre
393 3.1.7
394 competent person VSS
395 Person who has been instructed by a competent system engineer VSS about the assigned tasks
396 within the scope of the on-site check and the possible dangers and consequences of improper
397 behaviour
398 Note 1 to the term: This includes the necessary knowledge for the assessment of the object requirements, with regard
399 to the type of danger and the required function of the VSS, the influence of the use as well as the limits of use and
400 the instruction about the security concept of the video surveillance system, about existing requirements as well as
401 legal requirements or requirements of the operator from safety aspects as personal and property protection measures
402 or to avoid personal injury.
403 Note 2 to the term: The task requires competences for independent planning and processing of the requirements
404 from the at-site visual check as well as in-depth general knowledge and specialist theoretical knowledge in order to
405 be able to assess to what extent environmental or object changes can influence the effectiveness of a video
406 surveillance system. The recognition of possible interactions from other requirements as well as the development of
407 alternative actions is necessary. Detected deviations must be securely justified, responsibly communicated and, if
408 necessary, retracted if no other problem solutions can be found.
409 3.1.8
410 Competent system engineer VSS
411 Person who, on the basis of professional technical training, knowledge and experience as well
412 as knowledge of the relevant standards, regulations and directives, is able to assess the work
413 to be carried out and recognise possible hazards.
414 A competent system engineer VSS can be employed by either an installation company/system
415 integrator company, project planning company or at owner or at user of the VSS.
416 Note 1 to the term: For the field of video surveillance systems, training from the spectrum of electrical engineering
417 in the field of communications, information, microprocessor, measurement and control or general electrical
418 engineering is required, and experience in the respective other fields as well as system knowledge of video security
419 technology must be demonstrated. Qualification of competence for VSS knowledge can be proven by training
420 certificates of e.g., local security associations or vendors of VSS.

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421 Note 2 to the term: Several years of activity in the relevant fields of work can also be used to assess the professional
422 training.
423 Note 3 to the term: The activity requires the ability to independently plan and process comprehensive technical tasks
424 in a complex, specialised, changing environment. Integrated technical knowledge and in-depth theoretical knowledge
425 of the subject must be available. The scope and limits of the possible applications of a video surveillance system
426 must be known. A very broad spectrum of specialised cognitive and practical skills is required. Work processes are
427 to be planned in a comprehensive manner and assessed with comprehensive consideration of handling alternatives
428 and interactions with neighbouring areas. The competence to guide others and to support them with well -founded
429 learning guidance must be given. Interdisciplinary complex issues must be presented in a structured, target -oriented
430 and addressee-related manner. Own and externally set learning and working goals must be reflected upon, evaluated,
431 pursued in a self-directed manner and answered.
432 3.1.9
433 Constant bit rate
434 Where the bit rate of a camera stream is kept constant re
...