EN 50695:2021

SLOVENSKI STANDARD
01-julij-2021
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
Dispositifs de communication avec le public et systèmes d'alarme générale en cas de
situation critique pour applications maritimes
Ta slovenski standard je istoveten z: EN 50695:2021
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50695
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2021
ICS 13.320; 47.020.70
English Version
Public-address-general-emergency-alarm-system,
communication-system for marine applications
Dispositifs de communication avec le public et systèmes Lautsprecher-Durchsage-System-General-Notfallalarm-
d'alarme générale en cas de situation critique pour System, Kommunikations-System für Marine-Anwendungen
applications maritimes
This European Standard was approved by CENELEC on 2021-04-26. 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 CEN-CENELEC
Management Centre 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 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.

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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50695:2021 E
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 6
3 Terms, definitions and abbreviations . 6
4 Test requirements . 9
5 Generic Performance, Safety, Marine Environmental and EMC . 10
6 External interfaces . 11
7 General functions . 15
8 Audio performance . 20
9 Systems failures, redundancies, back-up and fall-back arrangements . 31
10 Loudspeakers . 37
11 Information requirements for system compilation . 38
12 Unauthorized modification of software configuration . 39
Bibliography . 40
European foreword
This document (EN 50695:2021) has been prepared by CLC/BTTF 157-1 “Public address and general emergency
alarm systems”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2022–04–26
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2024–04–26
conflicting with this document have to be

withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.
CENELEC shall not be held responsible for identifying any or all such patent rights.
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 that 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.
Introduction
Public address and general emergency alarm systems have the primary purpose to inform persons on board of ships
of emergency situations, and to enable the ship’s officers relay voice messages to persons on board those ships 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 ship.
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 ship flying the flag of an 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.
Equipment based on EN 54 could be used as basis for PA and PAGA systems when additionally, compliant with this
document.
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 as in Table 1 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 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 ship category and type of system.
Table 1 — Product-ship type matrix
GA PA PAGA
Cargo SOLAS reg. II-2/12 .1 LSA Code 7.2.2 SOLAS reg. II-2/12 .1 and .2
ship
and .2
SOLAS reg. III/6.4
SOLAS reg. 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 reg.II-2/12 .1 SOLAS reg. II-2/12 .1 and .3 SOLAS reg. II-2/12 .1, .2 and .3
ship (not and .2
SOLAS reg. III/6.5 SOLAS reg. III/6.4, 6.5
SRtP)
SOLAS reg. 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 reg. II-2/12 .1 SOLAS reg. II-2/12 .1 and .3 SOLAS reg. II-2/12 .1, .2 and .3
ship
and .2
SOLAS reg. III/6.5 SOLAS reg. III/6.4, 6.5
(SRtP)
SOLAS reg. 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 reg. II-2/21&22 MSC/Circ.808
MSC.1/Circ.1369/Add.1 SOLAS reg. II-2/21&22
MSC.1/Circ.1369/Add.1
Unless this document explicitly states otherwise, each section in this document applies to all ship types.
This document indicates for each section if that section is applicable to PA, GA and/or PAGA systems.
Where this document makes sections applicable to “passenger ships”, these sections apply to both “Passenger ship
(not SRtP)” and “Passenger ship (SRtP)”.
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 60268-4:2018, Sound system equipment - Part 4: Microphones
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 radiocommunication 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 IEC 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
EN IEC 62923-2, Maritime navigation and radiocommunication equipment and systems - Bridge alert management -
Part 2: Alert and cluster identifiers and other additional features
IEC 60268-1, Sound system equipment - Part 1: General (IEC 60268-1)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
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 https://www.electropedia.org/
3.1.1
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
3.1.2
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.
3.1.3
bridge alert management
(MSC.302/A) overall concept for management, handling and harmonized presentation of alerts on the bridge
3.1.4
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
Note 2 to entry: 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 subsyst
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