kSIST FprEN 50695:2021

Public-address-general-emergency-alarm-system, communication-system for marine applications

This standard describes requirements, performances and test-procedures for Public-Address-Systems (PA) and General-Alarm (GA) Communication-systems for marine applications. The standard is focused on all necessities to get a harmonized standard for marine PAGA Com.
The standard refers as much as possible to relevant established standards. Where relevant standard do not exist or are not precise enough, this standard will describe additionally own definitions , requirements performances and test-procedures

Lautsprecher-Durchsage-System-General-Notfallalarm-System, Kommunikations-System für Marine-Anwendungen

Dispositifs de communication avec le public et systèmes d'alarme générale en cas de situation critique pour applications maritimes

Le présent document décrit les exigences opérationnelles et de performances, les méthodes d'essai ainsi que les résultats d'essai exigés pour les composants des dispositifs de communication avec le public (PA), des systèmes d'alarme générale en cas de situation critique (GA) et des systèmes de communication avec le public et d'alarme générale en cas de situation critique (PAGA) pour applications maritimes indiqués dans le Tableau 1 à l'appui des exigences de l'OMI pour ces systèmes, tandis qu'il appartient au fabricant de définir les composants à homologuer ensemble ou séparément pour construire un tel système. NOTE 1 Le présent document ne traite pas de l'ingénierie des systèmes pour l'installation à bord des navires ni des exigences d'installation associées. Le présent document se réfère autant que possible aux normes établies qui sont pertinentes. En l'absence de normes pertinentes ou si celles-ci ne sont pas suffisamment précises, le présent document décrit les exigences opérationnelles et de performances, ainsi que les méthodes d'essai et les résultats d'essai exigés. NOTE 2 Tous les énoncés du présent document dont la formulation est identique à celle de la circulaire MSC.808 de l'OMI ou aux exigences de la convention SOLAS sont imprimés en italique, et la résolution ainsi que les numéros d'alinéas associés sont indiqués entre parenthèses. Le Tableau 1 décrit les exigences de l'OMI applicables à chaque combinaison catégorie de navire/type de système. Le présent document indique pour chaque article et paragraphe si celui-ci s'applique aux systèmes PA, GA et/ou PAGA. Lorsque certains articles et paragraphes du présent document sont applicables aux navires à passagers, ces articles et paragraphes s'appliquent aux "navires à passagers (non SRtP)" et aux "navires à passagers (SRtP)".

Splošni javni krizni alarmni sistem, komunikacijski sistem za pomorske aplikacije

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 50695:2020
01-marec-2020

Splošni javni krizni alarmni sistem, komunikacijski sistem za pomorske aplikacije

Public-address-general-emergency-alarm-system, communication-system for marine
applications
Lautsprecher-Durchsage-System-General-Notfallalarm-System, Kommunikations-
System für Marine-Anwendungen
Ta slovenski standard je istoveten z: prEN 50695:2019
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
47.020.99 Drugi standardi v zvezi z Other standards related to
ladjedelništvom in shipbuilding and marine
konstrukcijami na morju structures
oSIST prEN 50695:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50695:2020
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oSIST prEN 50695:2020
EUROPEAN STANDARD DRAFT
prEN 50695
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2019
ICS
English Version
Public-address-general-emergency-alarm-system,
communication-system for marine applications
To be completed Lautsprecher-Durchsage-System-General-Notfallalarm-
System, Kommunikations-System für Marine-Anwendungen
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2020-02-21.
It has been drawn up by CLC/BTTF 157-1.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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 CEN-CENELEC Management Centre 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 67292 Ref. No. prEN 50695:2019 E
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Contents Page

European foreword ............................................................................................................................................ 6

Introduction ........................................................................................................................................................ 7

1 Scope ..................................................................................................................................................... 8

2 Normative references ........................................................................................................................... 9

3 Terms, definitions and abbreviations ................................................................................................. 9

3.1 Terms and definitions .......................................................................................................................... 9

3.2 Abbreviations ...................................................................................................................................... 11

4 Generic Performance, Safety, Marine Environmental and EMC .................................................... 11

4.1 Applicability ......................................................................................................................................... 11

4.2 Requirement ........................................................................................................................................ 11

4.3 Methods of test and required test results ........................................................................................ 12

5 External interfaces .............................................................................................................................. 12

5.1 Overview .............................................................................................................................................. 12

5.2 Bridge alert management ................................................................................................................... 13

5.2.1 Applicability ......................................................................................................................................... 13

5.2.2 Requirement ........................................................................................................................................ 13

5.2.3 Method of test and required results.................................................................................................. 13

5.3 User interface on navigation bridge ................................................................................................. 14

5.3.1 Applicability ......................................................................................................................................... 14

5.3.2 Requirement ........................................................................................................................................ 14

5.3.3 Method of tests and required results................................................................................................ 14

5.4 Interface for external devices ............................................................................................................ 14

5.4.1 Applicability ......................................................................................................................................... 14

5.4.2 Requirement ........................................................................................................................................ 14

5.4.3 Method of tests and required results................................................................................................ 14

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5.5 Audio communication system ...........................................................................................................15

5.5.1 Applicability .........................................................................................................................................15

5.5.2 Requirement .........................................................................................................................................15

5.5.3 Method of tests and required results ................................................................................................15

6 General functions ................................................................................................................................16

6.1 Control functions .................................................................................................................................16

6.1.1 Manual activation of alarm signals ....................................................................................................16

6.1.2 PA announcements .............................................................................................................................17

6.1.3 Feedback handling during live PA call ..............................................................................................18

6.1.4 Indicators on control station ..............................................................................................................19

6.2 Priority ..................................................................................................................................................19

6.2.1 Priority between Emergency alarms and PA ....................................................................................19

6.2.2 Priority between PA control stations ................................................................................................21

6.3 Marking and labelling of PA and alarm controls ..............................................................................21

6.3.1 Applicability .........................................................................................................................................21

6.3.2 Requirement .........................................................................................................................................21

6.3.3 Method of tests ....................................................................................................................................22

7 Audio performance ..............................................................................................................................22

7.1 General emergency alarm (GA) generation ......................................................................................22

7.1.1 Applicability .........................................................................................................................................22

7.1.2 Requirement .........................................................................................................................................22

7.1.3 Method of tests and required results ................................................................................................22

7.2 Alarm frequency ..................................................................................................................................22

7.2.1 Applicability .........................................................................................................................................22

7.2.2 Requirement .........................................................................................................................................23

7.2.3 Method of tests and required results ................................................................................................23

7.3 Output power of amplifier ...................................................................................................................24

7.3.1 Applicability .........................................................................................................................................24

7.3.2 Requirement .........................................................................................................................................24

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7.3.3 Method of tests and required results................................................................................................ 24

7.4 Signal to Noise Ratio .......................................................................................................................... 27

7.4.1 Applicability ......................................................................................................................................... 27

7.4.2 Requirement ........................................................................................................................................ 27

7.4.3 Method of tests and required results................................................................................................ 27

7.5 System frequency response with microphones .............................................................................. 29

7.5.1 Applicability ......................................................................................................................................... 29

7.5.2 Requirement ........................................................................................................................................ 29

7.5.3 Method of tests and required results................................................................................................ 30

7.6 System frequency response without microphone(s) ...................................................................... 31

7.6.1 Applicability ......................................................................................................................................... 31

7.6.2 Requirement ........................................................................................................................................ 31

7.6.3 Method of tests and required results................................................................................................ 32

8 Systems failures, redundancies, back-up and fall-back arrangements ........................................ 34

8.1 Power redundancy and change-over to emergency power ........................................................... 34

8.1.1 Applicability ......................................................................................................................................... 34

8.1.2 Requirement ........................................................................................................................................ 34

8.1.3 Method of tests and required results................................................................................................ 34

8.2 Warning on power failure ................................................................................................................... 35

8.2.1 Applicability ......................................................................................................................................... 35

8.2.2 Requirement ........................................................................................................................................ 35

8.2.3 Method of tests and required results................................................................................................ 36

8.3 Minimize the effect of Single Failure................................................................................................. 36

8.3.1 Applicability ......................................................................................................................................... 36

8.3.2 Requirement ........................................................................................................................................ 36

8.3.3 Method of tests and required results................................................................................................ 37

8.4 System redundancy by independent systems ................................................................................ 37

8.4.1 Applicability ......................................................................................................................................... 37

8.4.2 Requirement ........................................................................................................................................ 37

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8.4.3 Method of tests ....................................................................................................................................38

9 Loudspeakers ......................................................................................................................................38

9.1 General .................................................................................................................................................38

9.2 Short circuit protection .......................................................................................................................38

9.2.1 Applicability .........................................................................................................................................38

9.2.2 Requirement .........................................................................................................................................38

9.2.3 Method of tests ....................................................................................................................................38

10 Design requirements ...........................................................................................................................38

10.1 Engineering description .....................................................................................................................38

10.1.1 Applicability .........................................................................................................................................38

10.1.2 Requirement .........................................................................................................................................38

10.1.3 Method for test .....................................................................................................................................39

10.2 Information in the product data sheet – loudspeakers....................................................................39

10.2.1 Applicability .........................................................................................................................................39

10.2.2 Requirement .........................................................................................................................................39

10.2.3 Method for test .....................................................................................................................................39

11 Unauthorized modification of software configuration .....................................................................39

11.1 Applicability .........................................................................................................................................39

11.2 Requirement .........................................................................................................................................39

11.3 Method of tests ....................................................................................................................................39

Bibliography ......................................................................................................................................................40

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European foreword

This document (prEN 50695:2019) has been prepared by CLC/BTTF 157-1 “Public address and general emergency

alarm systems”.
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)

The EU-Commission has received requests from stakeholders for the development of standards for public address

and general emergency alarm systems (entry A.2/1.5 in Annex A.2 of Directive 96/98/EC as amended by Commission

Directive (EU) 2015/559) and therefore requests the European standardization organisations start the development of

the respective standards.

The development of standards for public address and general emergency alarm systems is necessary because these

systems are very important for safety on board and they are exposed to specific conditions (e.g. moisture, salt) which

do not occur in other circumstances. The legislative provisions will detail the modalities for assessing those equipment.

The availability of testing standards will allow these products to be included in the scope of Directive 2014/90/EU,

which in turn will allow them to be conformity assessed by a notified body and to affix the wheel mark.

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Introduction

Public Address and General Emergency Alarm Systems have the primary purpose to inform persons on board of

vessels of emergency situations, and to enable the ship’s officers relay voice messages to persons on board those

vessels in emergency situations.

EN 50695 has been written in pursuit of a request of the European Commission for a standard on equipment for Public

Address and General Emergency Alarm Systems (PA-, GA- and PAGA-systems). The European Commission issued

this request with the intention of taking this standard on board the Implementing Regulations belonging to the Marine

Equipment Directive (MED), with the aim to enable and require MED certification for equipment for Public Address and

General Emergency Alarm Systems (PA-, GA- and PAGA-systems). This will ensure that such equipment complies

with all applicable requirements to that equipment set by the International Maritime Organization (IMO) in SOLAS 1974

and the LSA-code, before it is installed on board a vessel.

Equipment compliant with this standard, certified according to the Marine Equipment Directive, can thus be used to

engineer and install a Public Address and General Emergency Alarm System on board a vessel flying the flag of a EU

member state.

EN 50695 has been designed to make use of existing standards where possible, and specifies clarifications of

requirements in other standards, additional requirements and methods of test and required test results where

necessary to satisfy the IMO requirements.
This document is focussed on the MED approval of components.
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1 Scope

This document describes operational and performance requirements, methods of testing and required test results for

components of Public-Address-Systems (PA), General-Emergency Alarm Systems (GA) and Public-Address General-

Emergency Alarm Systems (PAGA) for marine applications (ships) in support of the requirements of IMO for such

systems, while it is up to the manufacturer to define the components to be type approved together or separately, to

build up a system.

NOTE 1 This part of the document does not include system engineering for installation on board nor installation requirements.

This document refers as much as possible to relevant established standards. Where relevant standards do not exist

or are not precise enough, this document will describe additionally own operational and performance requirements,

methods of testing and required test results.

NOTE 2 All text of this document, whose wording is identical to that of IMO circular MSC.808 or to SOLAS convention

requirements, is printed in italics, and the resolution and associated paragraph numbers are indicated in brackets.

Table 1 describes the applicable IMO requirements for each combination of vessel category and type of system.

Table 1 — Requirement matrix
GA PA PAGA
Cargo SOLAS II-2/12 .1 and LSA Code 7.2.2 SOLAS II-2/12 .1 and .2
SOLAS III/6.4
SOLAS III/6.4
LSA Code 7.2
LSA Code 7.2.1
Res. A.1021(26) 5.8
Res. A.1021(26) 5.10

Passenger SOLAS II-2/12 .1 and SOLAS II-2/12 .1 and .3 SOLAS II-2/12 .1, .2 and .3

ship (not .2
SOLAS III/6.5 SOLAS III/6.4, 6.5
SRtP)
SOLAS III/6.4
LSA Code 7.2.2 LSA Code 7.2
LSA Code 7.2.1
MSC/Circ.808 A.1021(26) 5.8
Res. A.1021(26) 5.10
MSC/Circ.808.

Passenger SOLAS II-2/12 .1 and SOLAS II-2/12 .1 and .3 SOLAS II-2/12 .1, .2 and .3

ship
SOLAS III/6.5 SOLAS III/6.4, 6.5
(SRtP)
SOLAS III/6.4
LSA Code 7.2.2 LSA Code 7.2
LSA Code 7.2.1
MSC/Circ.808 Res. A.1021(26) 5.8
Res. A.1021(26) 5.10
SOLAS II-2/21&22 MSC/Circ.808
MSC.1/Circ.1369/Add.1 SOLAS II-2/21&22
MSC.1/Circ.1369/Add.1

Each clause of this document is applicable for all ships type if not explicitly stated otherwise.

Each clause of this document indicates for which type of system it is applicable.

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2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes

requirements 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.

EN IEC 60268-4:2008, Sound system equipment - Part 4: Microphones (IEC 60268-4:2008)

EN 60945:2002, Maritime navigation and radiocommunication equipment and systems - General requirements -

Methods of testing and required test results (IEC 60945:2002)

EN 61162-1, Maritime navigation and radio communication equipment and systems, - Digital interfaces, Part 1: -Single

talker and multiple listeners (IEC 61162-1)

EN 61162-2, Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 2: Single

talker and multiple listeners, high-speed transmission (IEC 61162-2)

EN 61162-450, Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 450:

Multiple talkers and multiple listeners - Ethernet interconnection (IEC 61162-450)

EN 62288, Maritime navigation and radiocommunication equipment and systems - Presentation of navigation-related

information on shipborne navigational displays - General requirements, methods of testing and required test results

(IEC 62288)

EN IEC 62923-1, Maritime navigation and radiocommunication equipment and systems - Bridge alert management -

Part 1: Operational and performance requirements, methods of testing and required test results (IEC 62923-1)

IEC 60268-1, Sound system equipment - Part 1: General
3 Terms, definitions and abbreviations

For the purposes of this document, the following terms, definitions and abbreviations apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1 Terms and definitions
3.1.1
Public Address system
PA system

electronic system comprising microphones, amplifiers, loudspeakers, and related equipment to increase and distribute

the volume (loudness) of a live spoken human voice, or other acoustic sound source, into areas

3.1.2
general emergency alarm system
GA system

equipment to distribute audible signals used on board ships in times of emergency

3.1.3
Public-Address-General-Emergency-Alarm system
PAGA system

equipment which has the functions and performance of both a PA system and a GA system

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3.1.4
control station
human machine interface (e.g. panel) for the operator to use the system
3.1.5
alarm
high-priority alert

(MSC 302/A) Condition requiring immediate attention and action by the bridge team, to maintain the safe navigation

and safe operation of the ship
3.1.6
redundancy

duplication of critical components or functions of a system with the intention of increasing reliability

3.1.7
Emergency Public Address
Emergency PA

voice announcement used to supplement general emergency alarm having priority over the general emergency alarm

3.1.8
public address
voice announcement
3.1.9
general emergency alarm

audible signal used on board ships to indicate an emergency situation, summoning passengers and crew to muster

stations and to initiate the actions included in the muster list
3.1.10
alert

(MSC 302/A) announcement of abnormal situations and conditions requiring attention

Note 1 to entry: Alerts are divided in four priorities: emergency alarms, alarms, warnings and cautions. An alert provides information

about a defined state change in connection with information about how to announce this event in a defined way to the system and

the operator.
3.1.11
bridge alert management

(MSC.302/A) overall concept for management, handling and harmonized presentation of alerts on the bridge

3.1.12
Central Alert Management System
CAM System
combined functionality of CAM and CAM-HMI

Note 1 to entry: CAM-HMI means: (MSC.302/A) human machine interface for centralized presentation and handling of alerts on the

bridge
3.1.13
CAM means

(MSC.302/A) functionality for the management of the presentation of alerts on the CAM-HMI, the communication of

alert states between CAM-HMI and navigational systems and sensors. The functions may be centralized or partly

centralized in subsystems and interconnected via a standardized alert-related communication

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3.1.14
loop
transmission-path between amplifiers
...