Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service - Part 7: Implementation of Bridge Alert Management (BAM) in DSC radio equipment

DEN/ERM-TGMAR-087-7

Tehnične karakteristike in merilne metode za naprave, ki generirajo, oddajajo in sprejemajo digitalni selektivni klic (DSC) v pomorski mobilni storitvi, ki deluje v območju MF, MF/HF oziroma VHF - 7. del: Izvedba upravljanja z opozorili na mostu (BAM) v radijski opremi DSC

General Information

Status
Published
Public Enquiry End Date
30-Sep-2021
Publication Date
11-Apr-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
11-Apr-2022
Due Date
16-Jun-2022
Completion Date
12-Apr-2022

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SLOVENSKI STANDARD
SIST EN 300 338-7 V1.1.1:2022
01-junij-2022
Tehnične karakteristike in merilne metode za naprave, ki generirajo, oddajajo in

sprejemajo digitalni selektivni klic (DSC) v pomorski mobilni storitvi, ki deluje v

območju MF, MF/HF oziroma VHF - 7. del: Izvedba upravljanja z opozorili na mostu
(BAM) v radijski opremi DSC

Technical characteristics and methods of measurement for equipment for generation,

transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF

and/or VHF mobile service - Part 7: Implementation of Bridge Alert Management (BAM)

in DSC radio equipment
Ta slovenski standard je istoveten z: ETSI EN 300 338-7 V1.1.1 (2022-04)
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
47.020.70 Navigacijska in krmilna Navigation and control
oprema equipment
SIST EN 300 338-7 V1.1.1:2022 en

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

---------------------- Page: 1 ----------------------
SIST EN 300 338-7 V1.1.1:2022
---------------------- Page: 2 ----------------------
SIST EN 300 338-7 V1.1.1:2022
ETSI EN 300 338-7 V1.1.1 (2022-04)
EUROPEAN STANDARD
Technical characteristics and methods of measurement
for equipment for generation, transmission
and reception of Digital Selective Calling (DSC)
in the maritime MF, MF/HF and/or VHF mobile service;
Part 7: Implementation of Bridge Alert Management (BAM)
in DSC radio equipment
---------------------- Page: 3 ----------------------
SIST EN 300 338-7 V1.1.1:2022
2 ETSI EN 300 338-7 V1.1.1 (2022-04)
Reference
DEN/ERM-TGMAR-087-7
Keywords
DSC, GMDSS, maritime, radio, SAR
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
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Notice of disclaimer & limitation of liability

The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of

experience to understand and interpret its content in accordance with generally accepted engineering or

other professional standard and applicable regulations.

No recommendation as to products and services or vendors is made or should be implied.

In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not

limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property

rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages

for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use

of or inability to use the software.
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and

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The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2022.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
SIST EN 300 338-7 V1.1.1:2022
3 ETSI EN 300 338-7 V1.1.1 (2022-04)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 5

1 Scope ........................................................................................................................................................ 6

2 References ................................................................................................................................................ 6

2.1 Normative references ......................................................................................................................................... 6

2.2 Informative references ........................................................................................................................................ 6

3 Definition of terms, symbols and abbreviations ....................................................................................... 7

3.1 Terms .................................................................................................................................................................. 7

3.2 Symbols .............................................................................................................................................................. 8

3.3 Abbreviations ..................................................................................................................................................... 8

4 General requirements ............................................................................................................................... 8

4.1 Bridge alert management implementation .......................................................................................................... 8

4.1.1 Introduction................................................................................................................................................... 8

4.1.2 Requirements ................................................................................................................................................ 9

4.1.3 Methods of test and required test results ....................................................................................................... 9

4.2 Audible signals for BAM alerts vs audible indications ...................................................................................... 9

4.2.1 General .......................................................................................................................................................... 9

4.2.2 Requirements .............................................................................................................................................. 10

4.2.3 Methods of test and required test results ..................................................................................................... 10

4.3 Interfaces .......................................................................................................................................................... 10

4.3.1 General requirements .................................................................................................................................. 10

4.3.2 Construction requirements .......................................................................................................................... 10

4.3.2.1 Physical connection ............................................................................................................................... 10

4.3.2.2 Ethernet protocols ................................................................................................................................. 11

4.3.3 Required sentences to support on the external interface ............................................................................. 11

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

5 Bridge Alert Management ...................................................................................................................... 12

5.1 Classification of BAM alerts ............................................................................................................................ 12

5.2 Mapping DSC alarms to BAM alerts ............................................................................................................... 12

5.2.1 Requirements for BAM alerts defined in the present document ................................................................. 12

5.2.2 Requirements for manufacturer defined BAM alerts .................................................................................. 13

5.2.3 Methods of test and required results ........................................................................................................... 14

5.3 Unacknowledged BAM warnings .................................................................................................................... 15

5.3.1 Requirements .............................................................................................................................................. 15

5.3.2 Methods of test and required results ........................................................................................................... 15

6 Detailed requirements for BAM alerts and alert communication ........................................................... 15

6.1 Alert communication ........................................................................................................................................ 15

6.1.1 Requirements .............................................................................................................................................. 15

6.1.2 Method of test and required results ............................................................................................................. 16

6.2 Handling DSC alerts of types "distress" and "distress relay" in received distress automated procedure

and of category "urgency" in received non-distress automated procedure ....................................................... 16

6.2.1 Typical alert flow ........................................................................................................................................ 16

6.2.2 Requirements .............................................................................................................................................. 17

6.2.3 Methods of test and required results ........................................................................................................... 19

6.2.3.1 Distress and Distress Relay ................................................................................................................... 19

6.2.3.2 Urgency ................................................................................................................................................. 20

6.3 Handling DSC alerts in received non-distress automated procedure other than category urgency .................. 21

6.3.1 Typical alert flow ........................................................................................................................................ 21

6.3.2 Requirements .............................................................................................................................................. 21

6.3.3 Methods of test and required results ........................................................................................................... 22

6.4 Handling other alerts related to DSC communication equipment .................................................................... 23

6.4.1 Typical alert flow ........................................................................................................................................ 23

ETSI
---------------------- Page: 5 ----------------------
SIST EN 300 338-7 V1.1.1:2022
4 ETSI EN 300 338-7 V1.1.1 (2022-04)

6.4.2 No position data received by DSC equipment ............................................................................................ 25

6.4.2.1 Requirements ........................................................................................................................................ 25

6.4.2.2 Methods of test and required results ..................................................................................................... 25

6.4.3 Antenna Tuner Error or other detected antenna failures (optional) ............................................................ 26

6.4.3.1 Requirements ........................................................................................................................................ 26

6.4.3.2 Methods of test and required results ..................................................................................................... 27

6.4.4 Transmission power error or otherwise inhibited transmission (optional) .................................................. 28

6.4.4.1 Requirements ........................................................................................................................................ 28

6.4.4.2 Methods of test and required results ..................................................................................................... 28

Annex A (normative): Audible indications and BAM alert audible signals ................................... 30

A.1 Aural specifications ................................................................................................................................ 30

Annex B (informative): Guidelines for designing DSC radios to the BAM concept ........................ 32

B.1 Introduction ............................................................................................................................................ 32

History .............................................................................................................................................................. 35

ETSI
---------------------- Page: 6 ----------------------
SIST EN 300 338-7 V1.1.1:2022
5 ETSI EN 300 338-7 V1.1.1 (2022-04)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be

found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to

ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the

ETSI Web server (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not

referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,

essential to the present document.
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Foreword

This European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and

Radio spectrum Matters (ERM).

The present document is part 7 of a multi-part deliverable. Full details of the entire series can be found in ETSI

EN 300 338-1 [i.1].
National transposition dates
Date of adoption of this EN: 4 April 2022
Date of latest announcement of this EN (doa): 31 July 2022
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 2023
Date of withdrawal of any conflicting National Standard (dow): 31 January 2024
Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 7 ----------------------
SIST EN 300 338-7 V1.1.1:2022
6 ETSI EN 300 338-7 V1.1.1 (2022-04)
1 Scope

The present document specifies the minimum requirements for GMDSS radiocommunication system using Digital

Selective Calling (DSC) Class A, with the capability to operate on a SOLAS bridge with the application of SOLAS

regulation V/15 [i.4] and thus implementing the BAM concept defined by IMO in MSC.302(87) [8].

2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

https://docbox.etsi.org/Reference/.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are necessary for the application of the present document.

[1] Recommendation ITU-R M.493-15: "Digital selective-calling system for use in the maritime

mobile service".

[2] ETSI EN 300 338-2: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 2: Class A DSC".

[3] IEC 62923-1 (Ed. 1) (2018): "Maritime navigation and radiocommunication equipment and

systems - Bridge alert management - Part 1: Operational and performance requirements, methods

of testing and required test results".

[4] IEC 61162-1 (Ed. 5) (2016): "Maritime navigation and radiocommunication equipment and

systems - Digital interfaces - Part 1: Single talker and multiple listeners".

[5] IEC 61162-2: "Maritime navigation and radiocommunication equipment and systems - Digital

interfaces - Part 2: Single talker and multiple listeners, high-speed transmission".

[6] IEC 61162-450 (Ed. 2) (2018): "Maritime navigation and radiocommunication equipment and

systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet

interconnection".

[7] IEC 62923-2 (Ed. 1) (2018): "Maritime navigation and radiocommunication equipment and

systems - Bridge alert management - Part 2: Alert and cluster identifiers and other additional

features".

[8] IMO Resolution MSC.302(87): "Adoption of performance standards for bridge alert

management".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.
ETSI
---------------------- Page: 8 ----------------------
SIST EN 300 338-7 V1.1.1:2022
7 ETSI EN 300 338-7 V1.1.1 (2022-04)

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.

[i.1] ETSI EN 300 338-1: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 1: Common requirements".

[i.2] IEC 62940:2016: "Maritime navigation and radiocommunication equipment and systems -

Integrated communication system (ICS) - Operational and performance requirements, methods of

testing and required test results".

[i.3] IEC 61097-3 (Ed. 2) (2017): "Global maritime distress and safety system (GMDSS) - Part 3:

Digital selective calling (DSC) equipment - Operational and performance requirements, methods

of testing and required results".

[i.4] SOLAS: "International Convention for the Safety Of Life At Sea", 1974 (as amended).

[i.5] IMO Resolution A.1021(26) (2009): "Code on alerts and indicators".
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in ETSI EN 300 338-1 [i.1] and the following apply:

acknowledge: BAM alert acknowledge

audible indication: sound from the EUT that is not associated with raising a BAM alert of priority alarm or warning in

the list of active alerts of the EUT

NOTE: BAM alerts of priority caution and emergency alarm do not have a BAM audible signal, nor have states to

handle acknowledgement or silencing.
EXAMPLE 1: A sound indicating a change of control position.

EXAMPLE 2: Table 7.1.1 of IMO Resolution A.1021(26):2009, "Code on Alerts and Indicators" [i.5].

BAM alert: announcement of abnormal situations and conditions requiring attention

NOTE: BAM alerts are divided in four priorities: emergency alarms, alarms, warnings and cautions.

distress event: unique distress situation identified by two (VHF) or three (MF/HF) parameters of the distress

information; the MMSI of the vessel in distress and the nature of distress and on MF/HF the mode of subsequent

communication
DSC acknowledge: DSC procedure acknowledge
DSC alarm: event in DSC equipment as specified in ETSI EN 300 338-2 [2]
DSC distress acknowledgement: distress DSC message of type Alert Acknowledgement
DSC distress alert: distress DSC message of type Alert
DSC distress relay: distress DSC message of type Relay
DSC urgency message: non-distress DSC message of category Urgency

non-distress DSC message: DSC messages or DSC acknowledgements that do not have the format specifier or

category of "distress"
ETSI
---------------------- Page: 9 ----------------------
SIST EN 300 338-7 V1.1.1:2022
8 ETSI EN 300 338-7 V1.1.1 (2022-04)
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
A Assembly
BAM Bridge Alert Management
CAM Central Alert Management
DSC Digital Selective Calling
Ed Edition
EN European Norm
ETSI European Telecommunications Standards Institute
EUT Equipment Under Test
GMDSS Global Maritime Distress and Safety System
HF High Frequency
HMI Human Machine Interface
ICS Integrated Communication System
ID Identity
IEC International Electrotechnical Commission
IMO International Maritime Organization
IP Internet Protocol
ITU International Telecommunications Union
ITU-R ITU - Radiocommunications sector
MF Medium Frequency
MMSI Maritime Mobile Service Identity
MSC Marine Safety Committee
N North/Northern latitude
NM Nautical Mile
OOW Officer Of the Watch
RX Receive(d)/Receiving
S South/Southern latitude
SAR Search And Rescue
SFI System Function ID
SNMP Simple Network Management Protocol
SOLAS International convention on the Safety Of Life At Sea 1974
TAG Transport Annotate and Group
TCP Transmission Control Protocol
TX Transmit(ted)/Transmitting
UDP User Datagram Protocol
VHF Very High Frequency
4 General requirements
4.1 Bridge alert management implementation
4.1.1 Introduction

Compliance with the BAM concept, including the interfaces required for BAM, is a functional and conceptual extension

to, not a substitution of, facilities as required in ETSI EN 300 338-2 [2]. Compliance with ETSI EN 300 338-2 [2] is

required unless the present document requires otherwise. According to MSC.302(87) [8] and IEC 62923-1 [3], in case

of conflict between the alert requirements of ETSI EN 300 338-2 [2] and the present document, the requirements and

tests of the present document and of MSC.302(87) [8], IEC 62923-1 [3] and IEC 62923-2 [7] shall take precedence.

ETSI
---------------------- Page: 10 ----------------------
SIST EN 300 338-7 V1.1.1:2022
9 ETSI EN 300 338-7 V1.1.1 (2022-04)

According to the BAM concept it is necessary to prioritize BAM alerts and the priorities shall be determined by the

DSC equipment. The BAM concept poses requirements on the alert definition concept, alert properties and the Human

Machine Interface (HMI). For guidance see IEC 62923-1 [3], Annex E. Further a signalling interface and a protocol are

defined for interfacing equipment to a CAM system or to other BAM compliant equipment according to

IEC 62923-1 [3], IEC 61162-1 [4] and IEC 62923-2 [7]. The present document adopts the signalling protocol and

allows, within limits, for DSC alarms from radio equipment to be part of the BAM concept or otherwise facilitates

these.
4.1.2 Requirements

The EUT shall comply with the requirements of ETSI EN 300 338-2 [2], IEC 62923-1 [3] and IEC 62923-2 [7].

Informative guidance on implementing Bridge Alert Management can be found in Annex B to the present document.

4.1.3 Methods of test and required test results

It shall be confirmed that the EUT complies with the tests in ETSI EN 300 338-2 [2], IEC 62923-1 [3] and

IEC 62923-2 [7].
4.2 Audible signals for BAM alerts vs audible indications
4.2.1 General

BAM alerts are alerts falling into the concept of Bridge Alert Management (BAM) (see MSC.302(87) [8] and

IEC 62923-1 [3]). BAM applies to all alerts presented on, or transferred to, the bridge of a vessel (the concept can also

be applied in other areas). The visual and audible announcements of BAM alerts are always handled on the EUT, and,

within limitations, additionally on the CAM system. The latter of which is not covered in the present document (see

IEC 62923-1 [3] and IEC 62923-2 [7]).

The BAM concept provides, amongst others, requirements for a human machine interface and provides a standardized

method to disseminate the information to the CAM system, thus requiring the support of the alert signalling interface

and protocol as defined in IEC 61162-1 [4] and IEC 62923-1 [3].

BAM alerts are distinct from matters such as DSC aural alarms. For the purpose of the present document the audible

presentation and handling of DSC aurals defined in Recommendation ITU-R M.493-15 [1] and ETSI EN 300 338-2 [2]

includes:

• audible signals. An audible signal is intended to recognize the existence and priority of a BAM alert and to

identify the equipment where an audible BAM alert can be handled. In the present document some audible

signals are directly based on DSC aurals, see Annex A and Table A.1;

• sound in the time allotted for speech output. Speech output is intended to recognize the specific BAM alert.

Some DSC aurals are allowed or required for this purpose, see Annex A and Table A.1; and

• audible indications (see also IEC 62923-1 [3]). Most DSC aurals are audible indications for the purpose of the

present document. The audible indications that occur together with a caution are listed in Annex A and

Table A.1.

Audible indications indicating DSC aural alarms or other situations may be applied in the EUT for functionality that

does not warrant a BAM alert, for example a tone for pressing the dedicated distress button, or for situations that do not

warrant an audible BAM alert, for example when the corresponding BAM alerts raised are only characterized as a

caution (thus without audible signal). Situations where ITU has defined sounds that need to be detached from alert

management altogether are therefore not defined in the present document.

Audible indications (mandatory or manufacturer specific) may be applied subject to the requirements defined in

clause 4.2.2.
ETSI
---------------------- Page: 11 ----------------------
SIST EN 300 338-7 V1.1.1:2022
10 ETSI EN 300 338-7 V1.1.1 (2022-04)
4.2.2 R
...

Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)
EUROPEAN STANDARD
Technical characteristics and methods of measurement
for equipment for generation, transmission
and reception of Digital Selective Calling (DSC)
in the maritime MF, MF/HF and/or VHF mobile service;
Part 7: Implementation of Bridge Alert Management (BAM)
in DSC radio equipment
---------------------- Page: 1 ----------------------
2 Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)
Reference
DEN/ERM-TGMAR-087-7
Keywords
DSC, GMDSS, maritime, radio, SAR
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI

deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.

Users of the present document should be aware that the document may be subject to revision or change of status.

Information on the current status of this and other ETSI documents is available at

https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx

If you find errors in the present document, please send your comment to one of the following services:

https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Notice of disclaimer & limitation of liability

The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of

experience to understand and interpret its content in accordance with generally accepted engineering or

other professional standard and applicable regulations.

No recommendation as to products and services or vendors is made or should be implied.

In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not

limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property

rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages

for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use

of or inability to use the software.
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and

microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2022.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 5

1 Scope ........................................................................................................................................................ 6

2 References ................................................................................................................................................ 6

2.1 Normative references ......................................................................................................................................... 6

2.2 Informative references ........................................................................................................................................ 6

3 Definition of terms, symbols and abbreviations ....................................................................................... 7

3.1 Terms .................................................................................................................................................................. 7

3.2 Symbols .............................................................................................................................................................. 8

3.3 Abbreviations ..................................................................................................................................................... 8

4 General requirements ............................................................................................................................... 8

4.1 Bridge alert management implementation .......................................................................................................... 8

4.1.1 Introduction................................................................................................................................................... 8

4.1.2 Requirements ................................................................................................................................................ 9

4.1.3 Methods of test and required test results ....................................................................................................... 9

4.2 Audible signals for BAM alerts vs audible indications ...................................................................................... 9

4.2.1 General .......................................................................................................................................................... 9

4.2.2 Requirements .............................................................................................................................................. 10

4.2.3 Methods of test and required test results ..................................................................................................... 10

4.3 Interfaces .......................................................................................................................................................... 10

4.3.1 General requirements .................................................................................................................................. 10

4.3.2 Construction requirements .......................................................................................................................... 10

4.3.2.1 Physical connection ............................................................................................................................... 10

4.3.2.2 Ethernet protocols ................................................................................................................................. 11

4.3.3 Required sentences to support on the external interface ............................................................................. 11

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

5 Bridge Alert Management ...................................................................................................................... 12

5.1 Classification of BAM alerts ............................................................................................................................ 12

5.2 Mapping DSC alarms to BAM alerts ............................................................................................................... 12

5.2.1 Requirements for BAM alerts defined in the present document ................................................................. 12

5.2.2 Requirements for manufacturer defined BAM alerts .................................................................................. 13

5.2.3 Methods of test and required results ........................................................................................................... 14

5.3 Unacknowledged BAM warnings .................................................................................................................... 15

5.3.1 Requirements .............................................................................................................................................. 15

5.3.2 Methods of test and required results ........................................................................................................... 15

6 Detailed requirements for BAM alerts and alert communication ........................................................... 15

6.1 Alert communication ........................................................................................................................................ 15

6.1.1 Requirements .............................................................................................................................................. 15

6.1.2 Method of test and required results ............................................................................................................. 16

6.2 Handling DSC alerts of types "distress" and "distress relay" in received distress automated procedure

and of category "urgency" in received non-distress automated procedure ....................................................... 16

6.2.1 Typical alert flow ........................................................................................................................................ 16

6.2.2 Requirements .............................................................................................................................................. 17

6.2.3 Methods of test and required results ........................................................................................................... 19

6.2.3.1 Distress and Distress Relay ................................................................................................................... 19

6.2.3.2 Urgency ................................................................................................................................................. 20

6.3 Handling DSC alerts in received non-distress automated procedure other than category urgency .................. 21

6.3.1 Typical alert flow ........................................................................................................................................ 21

6.3.2 Requirements .............................................................................................................................................. 21

6.3.3 Methods of test and required results ........................................................................................................... 22

6.4 Handling other alerts related to DSC communication equipment .................................................................... 23

6.4.1 Typical alert flow ........................................................................................................................................ 23

ETSI
---------------------- Page: 3 ----------------------
4 Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)

6.4.2 No position data received by DSC equipment ............................................................................................ 25

6.4.2.1 Requirements ........................................................................................................................................ 25

6.4.2.2 Methods of test and required results ..................................................................................................... 25

6.4.3 Antenna Tuner Error or other detected antenna failures (optional) ............................................................ 26

6.4.3.1 Requirements ........................................................................................................................................ 26

6.4.3.2 Methods of test and required results ..................................................................................................... 27

6.4.4 Transmission power error or otherwise inhibited transmission (optional) .................................................. 28

6.4.4.1 Requirements ........................................................................................................................................ 28

6.4.4.2 Methods of test and required results ..................................................................................................... 28

Annex A (normative): Audible indications and BAM alert audible signals ................................... 30

A.1 Aural specifications ................................................................................................................................ 30

Annex B (informative): Guidelines for designing DSC radios to the BAM concept ........................ 32

B.1 Introduction ............................................................................................................................................ 32

History .............................................................................................................................................................. 35

ETSI
---------------------- Page: 4 ----------------------
5 Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be

found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to

ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the

ETSI Web server (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not

referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,

essential to the present document.
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The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

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Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the

oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.

Foreword

This final draft European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic

compatibility and Radio spectrum Matters (ERM), and is now submitted for the Vote phase of the ETSI standards EN

Approval Procedure.

The present document is part 7 of a multi-part deliverable. Full details of the entire series can be found in ETSI

EN 300 338-1 [i.1].
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa

Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 5 ----------------------
6 Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)
1 Scope

The present document specifies the minimum requirements for GMDSS radiocommunication system using Digital

Selective Calling (DSC) Class A, with the capability to operate on a SOLAS bridge with the application of SOLAS

regulation V/15 [i.4] and thus implementing the BAM concept defined by IMO in MSC.302(87) [8].

2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

https://docbox.etsi.org/Reference/.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are necessary for the application of the present document.

[1] Recommendation ITU-R M.493-15: "Digital selective-calling system for use in the maritime

mobile service".

[2] ETSI EN 300 338-2: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 2: Class A DSC".

[3] IEC 62923-1 (Ed. 1) (2018): "Maritime navigation and radiocommunication equipment and

systems - Bridge alert management - Part 1: Operational and performance requirements, methods

of testing and required test results".

[4] IEC 61162-1 (Ed. 5) (2016): "Maritime navigation and radiocommunication equipment and

systems - Digital interfaces - Part 1: Single talker and multiple listeners".

[5] IEC 61162-2: "Maritime navigation and radiocommunication equipment and systems - Digital

interfaces - Part 2: Single talker and multiple listeners, high-speed transmission".

[6] IEC 61162-450 (Ed. 2) (2018): "Maritime navigation and radiocommunication equipment and

systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet

interconnection".

[7] IEC 62923-2 (Ed. 1) (2018): "Maritime navigation and radiocommunication equipment and

systems - Bridge alert management - Part 2: Alert and cluster identifiers and other additional

features".

[8] IMO Resolution MSC.302(87): "Adoption of performance standards for bridge alert

management".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.
ETSI
---------------------- Page: 6 ----------------------
7 Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.

[i.1] ETSI EN 300 338-1: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 1: Common requirements".

[i.2] IEC 62940:2016: "Maritime navigation and radiocommunication equipment and systems -

Integrated communication system (ICS) - Operational and performance requirements, methods of

testing and required test results".

[i.3] IEC 61097-3 (Ed. 2) (2017): "Global maritime distress and safety system (GMDSS) - Part 3:

Digital selective calling (DSC) equipment - Operational and performance requirements, methods

of testing and required results".

[i.4] SOLAS: "International Convention for the Safety Of Life At Sea", 1974 (as amended).

[i.5] IMO Resolution A.1021(26) (2009): "Code on alerts and indicators".
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in ETSI EN 300 338-1 [i.1] and the following apply:

acknowledge: BAM alert acknowledge

audible indication: sound from the EUT that is not associated with raising a BAM alert of priority alarm or warning in

the list of active alerts of the EUT

NOTE: BAM alerts of priority caution and emergency alarm do not have a BAM audible signal, nor have states to

handle acknowledgement or silencing.
EXAMPLE 1: A sound indicating a change of control position.

EXAMPLE 2: Table 7.1.1 of IMO Resolution A.1021(26):2009, "Code on Alerts and Indicators" [i.5].

BAM alert: announcement of abnormal situations and conditions requiring attention

NOTE: BAM alerts are divided in four priorities: emergency alarms, alarms, warnings and cautions.

distress event: unique distress situation identified by two (VHF) or three (MF/HF) parameters of the distress

information; the MMSI of the vessel in distress and the nature of distress and on MF/HF the mode of subsequent

communication
DSC acknowledge: DSC procedure acknowledge
DSC alarm: event in DSC equipment as specified in ETSI EN 300 338-2 [2]
DSC distress acknowledgement: distress DSC message of type Alert Acknowledgement
DSC distress alert: distress DSC message of type Alert
DSC distress relay: distress DSC message of type Relay
DSC urgency message: non-distress DSC message of category Urgency

non-distress DSC message: DSC messages or DSC acknowledgements that do not have the format specifier or

category of "distress"
ETSI
---------------------- Page: 7 ----------------------
8 Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
A Assembly
BAM Bridge Alert Management
CAM Central Alert Management
DSC Digital Selective Calling
Ed Edition
EN European Norm
ETSI European Telecommunications Standards Institute
EUT Equipment Under Test
GMDSS Global Maritime Distress and Safety System
HF High Frequency
HMI Human Machine Interface
ICS Integrated Communication System
ID Identity
IEC International Electrotechnical Commission
IMO International Maritime Organization
IP Internet Protocol
ITU International Telecommunications Union
ITU-R ITU - Radiocommunications sector
MF Medium Frequency
MMSI Maritime Mobile Service Identity
MSC Marine Safety Committee
N North/Northern latitude
NM Nautical Mile
OOW Officer Of the Watch
RX Receive(d)/Receiving
S South/Southern latitude
SAR Search And Rescue
SFI System Function ID
SNMP Simple Network Management Protocol
SOLAS International convention on the Safety Of Life At Sea 1974
TAG Transport Annotate and Group
TCP Transmission Control Protocol
TX Transmit(ted)/Transmitting
UDP User Datagram Protocol
VHF Very High Frequency
4 General requirements
4.1 Bridge alert management implementation
4.1.1 Introduction

Compliance with the BAM concept, including the interfaces required for BAM, is a functional and conceptual extension

to, not a substitution of, facilities as required in ETSI EN 300 338-2 [2]. Compliance with ETSI EN 300 338-2 [2] is

required unless the present document requires otherwise. According to MSC.302(87) [8] and IEC 62923-1 [3], in case

of conflict between the alert requirements of ETSI EN 300 338-2 [2] and the present document, the requirements and

tests of the present document and of MSC.302(87) [8], IEC 62923-1 [3] and IEC 62923-2 [7] shall take precedence.

ETSI
---------------------- Page: 8 ----------------------
9 Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)

According to the BAM concept it is necessary to prioritize BAM alerts and the priorities shall be determined by the

DSC equipment. The BAM concept poses requirements on the alert definition concept, alert properties and the Human

Machine Interface (HMI). For guidance see IEC 62923-1 [3], Annex E. Further a signalling interface and a protocol are

defined for interfacing equipment to a CAM system or to other BAM compliant equipment according to

IEC 62923-1 [3], IEC 61162-1 [4] and IEC 62923-2 [7]. The present document adopts the signalling protocol and

allows, within limits, for DSC alarms from radio equipment to be part of the BAM concept or otherwise facilitates

these.
4.1.2 Requirements

The EUT shall comply with the requirements of ETSI EN 300 338-2 [2], IEC 62923-1 [3] and IEC 62923-2 [7].

Informative guidance on implementing Bridge Alert Management can be found in Annex B to the present document.

4.1.3 Methods of test and required test results

It shall be confirmed that the EUT complies with the tests in ETSI EN 300 338-2 [2], IEC 62923-1 [3] and

IEC 62923-2 [7].
4.2 Audible signals for BAM alerts vs audible indications
4.2.1 General

BAM alerts are alerts falling into the concept of Bridge Alert Management (BAM) (see MSC.302(87) [8] and

IEC 62923-1 [3]). BAM applies to all alerts presented on, or transferred to, the bridge of a vessel (the concept can also

be applied in other areas). The visual and audible announcements of BAM alerts are always handled on the EUT, and,

within limitations, additionally on the CAM system. The latter of which is not covered in the present document (see

IEC 62923-1 [3] and IEC 62923-2 [7]).

The BAM concept provides, amongst others, requirements for a human machine interface and provides a standardized

method to disseminate the information to the CAM system, thus requiring the support of the alert signalling interface

and protocol as defined in IEC 61162-1 [4] and IEC 62923-1 [3].

BAM alerts are distinct from matters such as DSC aural alarms. For the purpose of the present document the audible

presentation and handling of DSC aurals defined in Recommendation ITU-R M.493-15 [1] and ETSI EN 300 338-2 [2]

includes:

• audible signals. An audible signal is intended to recognize the existence and priority of a BAM alert and to

identify the equipment where an audible BAM alert can be handled. In the present document some audible

signals are directly based on DSC aurals, see Annex A and Table A.1;

• sound in the time allotted for speech output. Speech output is intended to recognize the specific BAM alert.

Some DSC aurals are allowed or required for this purpose, see Annex A and Table A.1; and

• audible indications (see also IEC 62923-1 [3]). Most DSC aurals are audible indications for the purpose of the

present document. The audible indications that occur together with a caution are listed in Annex A and

Table A.1.

Audible indications indicating DSC aural alarms or other situations may be applied in the EUT for functionality that

does not warrant a BAM alert, for example a tone for pressing the dedicated distress button, or for situations that do not

warrant an audible BAM alert, for example when the corresponding BAM alerts raised are only characterized as a

caution (thus without audible signal). Situations where ITU has defined sounds that need to be detached from alert

management altogether are therefore not defined in the present document.

Audible indications (mandatory or manufacturer specific) may be applied subject to the requirements defined in

clause 4.2.2.
ETSI
---------------------- Page: 9 ----------------------
10 Final draft ETSI EN 300 338-7 V1.1.0 (2022-02)
4.2.2 Requirements

BAM alerts of priority warning and alarm shall not be accompanied with an audible indication (only the audible

presentation defined in IEC 62923-1 [3] is allowed).

All sounds provided by the EUT that are not required by the present document as (part of the) audible presentation of a

BAM alert (i.e. an audible signal for a BAM alert and the signal in the time for 'speech output') are audible indications.

When an audible indication is provided, it shall:
• not be possible to be misinterpreted as a BAM alert;
• not be startling;
• be less disturbing then BAM alerts; and
• be either:
- momentary or temporary without user interaction; or

- stop after a defined user action on the equipment, which action is not related to alert management (this

user action shall not involve the alert acknowledgement or silencing features). See also clause A.1.

4.2.3 Methods of test and required test results

It shall be confirmed by inspection of the EUT that BAM alerts of priority warning and alarm are not accompanied with

an audible indication, thus only the audible presentation defined in IEC 62923-1 [3] shall occur.

It shall be confirmed by inspection of the EUT that when an audible indication is provided, e.g. along with a caution

raised or detached from alert management, the audible indication:
• cannot be misinterpreted as a BAM alert;
• is not startling;
• is less disturbing then BAM alerts; and
• is either:
- momentary or te
...

Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
EUROPEAN STANDARD
Technical characteristics and methods of measurement
for equipment for generation, transmission
and reception of Digital Selective Calling (DSC)
in the maritime MF, MF/HF and/or VHF mobile service;
Part 7: Implementation of Bridge Alert Management (BAM)
in DSC radio equipment
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
Reference
DEN/ERM-TGMAR-087-7
Keywords
DSC, GMDSS, maritime, radio, SAR
ETSI
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© ETSI 2021.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 5

1 Scope ........................................................................................................................................................ 6

2 References ................................................................................................................................................ 6

2.1 Normative references ......................................................................................................................................... 6

2.2 Informative references ........................................................................................................................................ 6

3 Definition of terms, symbols and abbreviations ....................................................................................... 7

3.1 Terms .................................................................................................................................................................. 7

3.2 Symbols .............................................................................................................................................................. 8

3.3 Abbreviations ..................................................................................................................................................... 8

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

4.1 Bridge alert management implementation .......................................................................................................... 9

4.1.1 Requirements ................................................................................................................................................ 9

4.1.2 Methods of test and required test results ....................................................................................................... 9

4.2 Audible signals for BAM alerts vs audible indications ...................................................................................... 9

4.2.1 General .......................................................................................................................................................... 9

4.2.2 Requirements .............................................................................................................................................. 10

4.2.3 Methods of test and required test results ..................................................................................................... 10

4.3 Interfaces .......................................................................................................................................................... 10

4.3.1 General requirements .................................................................................................................................. 10

4.3.2 Construction requirements .......................................................................................................................... 11

4.3.2.1 Physical connection ............................................................................................................................... 11

4.3.2.2 Ethernet protocols ................................................................................................................................. 11

4.3.3 Required sentences to support on the interface ........................................................................................... 11

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

5 Bridge Alert Management ...................................................................................................................... 12

5.1 Classification of BAM alerts ............................................................................................................................ 12

5.2 Mapping DSC alarms to BAM alerts ............................................................................................................... 12

5.2.1 Requirements for BAM alerts defined in the present document ................................................................. 12

5.2.2 Requirements for manufacturer defined BAM alerts .................................................................................. 13

5.2.3 Methods of test and required results ........................................................................................................... 14

5.3 Unacknowledged BAM warnings .................................................................................................................... 15

5.3.1 Requirements .............................................................................................................................................. 15

5.3.2 Methods of test and required results ........................................................................................................... 15

6 Detailed requirements for BAM alerts and alert communication ........................................................... 15

6.1 Alert communication ........................................................................................................................................ 15

6.1.1 Requirements .............................................................................................................................................. 15

6.1.2 Method of test and required results ............................................................................................................. 16

6.2 Handling DSC alerts of types "distress" and "distress relay" in received distress automated procedure

and of category "urgency" in received non-distress automated procedure ....................................................... 16

6.2.1 Typical alert flow ........................................................................................................................................ 16

6.2.2 Requirements .............................................................................................................................................. 17

6.2.3 Methods of test and required results ........................................................................................................... 19

6.2.3.1 Distress and Distress Relay ................................................................................................................... 19

6.2.3.2 Urgency ................................................................................................................................................. 20

6.3 Handling DSC alerts in received non-distress automated procedure other than category urgency .................. 21

6.3.1 Typical alert flow ........................................................................................................................................ 21

6.3.2 Requirements .............................................................................................................................................. 21

6.3.3 Methods of test and required results ........................................................................................................... 22

6.4 Handling other alerts related to DSC communication equipment .................................................................... 23

6.4.1 Typical alert flow ........................................................................................................................................ 23

6.4.2 No position data received by DSC equipment ............................................................................................ 25

ETSI
---------------------- Page: 3 ----------------------
4 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)

6.4.2.1 Requirements ........................................................................................................................................ 25

6.4.2.2 Methods of test and required results ..................................................................................................... 25

6.4.3 Antenna Tuner Error or other detected antenna failures (optional) ............................................................ 26

6.4.3.1 Requirements ........................................................................................................................................ 26

6.4.3.2 Methods of test and required results ..................................................................................................... 27

6.4.4 Transmission power error or otherwise inhibited transmission (optional) .................................................. 28

6.4.4.1 Requirements ........................................................................................................................................ 28

6.4.4.2 Methods of test and required results ..................................................................................................... 28

Annex A (normative): Audible indications and BAM alert audible signals ................................... 30

A.1 Aural specifications ................................................................................................................................ 30

Annex B (informative): Guidelines for designing DSC radios to the BAM concept ........................ 32

B.1 Introduction ............................................................................................................................................ 32

History .............................................................................................................................................................. 35

ETSI
---------------------- Page: 4 ----------------------
5 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be

found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to

ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the

ETSI Web server (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not

referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,

essential to the present document.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP

Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the

oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.

Foreword

This draft European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility

and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote phase of the ETSI

standards EN Approval Procedure.

The present document is part 7 of a multi-part deliverable. Full details of the entire series can be found in ETSI

EN 300 338-1 [i.1].
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa

Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 5 ----------------------
6 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
1 Scope

The present document specifies the minimum requirements for GMDSS radiocommunication system using Digital

Selective Calling (DSC) Class A, with the capability to operate on a SOLAS bridge with the application of SOLAS

regulation V/15 [i.5] and thus implementing the BAM concept defined by IMO in MSC.302(87) [8].

2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

http://docbox.etsi.org/Reference.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are necessary for the application of the present document.

[1] Recommendation ITU-R M.493-15: "Digital selective-calling system for use in the maritime

mobile service".

[2] ETSI EN 300 338-2: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 2: Class A DSC".

[3] IEC 62923-1 (Ed. 1) (2018): "Maritime navigation and radiocommunication equipment and

systems - Bridge alert management - Part 1: Operational and performance requirements, methods

of testing and required test results".

[4] IEC 61162-1 (Ed. 5) (2016): "Maritime navigation and radiocommunication equipment and

systems - Digital interfaces - Part 1: Single talker and multiple listeners".

[5] IEC 61162-2: "Maritime navigation and radiocommunication equipment and systems - Digital

interfaces - Part 2: Single talker and multiple listeners, high-speed transmission".

[6] IEC 61162-450 (Ed. 2) (2018): "Maritime navigation and radiocommunication equipment and

systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet

interconnection".

[7] IEC 62923-2 (Ed. 1) (2018): "Maritime navigation and radiocommunication equipment and

systems - Bridge alert management - Part 2: Alert and cluster identifiers and other additional

features".

[8] IMO Resolution MSC.302(87): "Adoption of performance standards for bridge alert

management".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.
ETSI
---------------------- Page: 6 ----------------------
7 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.

[i.1] ETSI EN 300 338-1: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 1: Common requirements".

[i.2] IEC 62940:2016: "Maritime navigation and radiocommunication equipment and systems -

Integrated communication system (ICS) - Operational and performance requirements, methods of

testing and required test results".

[i.3] IEC 61097-3 (Ed. 2) (2017): "Global maritime distress and safety system (GMDSS) - Part 3:

Digital selective calling (DSC) equipment - Operational and performance requirements, methods

of testing and required results".

[i.4] ETSI EN 300 338-8: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 8: Enabling DSC radio equipment with remote control

capabilities".

[i.5] SOLAS: "International Convention for the Safety Of Life At Sea", 1974 (as amended).

[i.6] IMO Resolution A.1021(26) (2009): "Code on alerts and indicators".
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in ETSI EN 300 338-1 [i.1] and the following apply:

acknowledge: BAM alert acknowledge

audible indication: sound from the EUT that is not associated with raising a BAM alert of priority alarm or warning in

the list of active alerts of the EUT

NOTE: BAM alerts of priority caution and emergency alarm do not have a BAM audible signal, nor have states to

handle acknowledgement or silencing.
EXAMPLE 1: A sound indicating a change of control position.

EXAMPLE 2: Table 7.1.1 of IMO Resolution A.1021(26):2009, "Code on Alerts and Indicators" [i.6].

BAM alert: announcement of abnormal situations and conditions requiring attention

NOTE: BAM alerts are divided in four priorities: emergency alarms, alarms, warnings and cautions.

distress event: unique distress situation identified by two (VHF) or three (MF/HF) parameters of the distress

information; the MMSI of the vessel in distress and the nature of distress and on MF/HF the mode of subsequent

communication
DSC acknowledge: DSC procedure acknowledge
DSC alarm: event in DSC equipment as specified in ETSI EN 300 338-2 [2]
DSC distress acknowledgement: distress DSC message of type Alert Acknowledgement
DSC distress alert: distress DSC message of type Alert
DSC distress relay: distress DSC message of type Relay
DSC urgency message: non-distress DSC message of category Urgency
ETSI
---------------------- Page: 7 ----------------------
8 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)

non-distress DSC message: DSC messages or DSC acknowledgements that do not have the format specifier or

category of "distress"
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
A Assembly
BAM Bridge Alert Management
CAM Central Alert Management
DSC Digital Selective Calling
ED Edition
EN European Norm
ETSI European Telecommunications Standards Institute
EUT Equipment Under Test
GMDSS Global Maritime Distress and Safety System
HF High Frequency
HMI Human Machine Interface
ICS Integrated Communication System
ID Identity
IEC International Electrotechnical Commission
IMO International Maritime Organization
IP Internet Protocol
ITU International Telecommunications Union
ITU-R ITU - Radiocommunications sector
MF Medium Frequency
MMSI Maritime Mobile Service Identity
MSC Marine Safety Committee
N North/Northern latitude
NM Nautical Mile
OOW Officer Of the Watch
RX Receive(d)/Receiving
S South/Southern latitude
SAR Search And Rescue
SFI System Function ID
SNMP Simple Network Management Protocol
SOLAS International convention on the Safety Of Life At Sea 1974
STF Specialist Task Force
TAG Transport Annotate and Group
TCP Transmission Control Protocol
TX Transmit(ted)/Transmitting
UDP User Datagram Protocol
VHF Very High Frequency
ETSI
---------------------- Page: 8 ----------------------
9 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
4 General requirements
4.1 Bridge alert management implementation
4.1.1 Requirements

Compliance with the BAM concept, including the interfaces required for BAM, is a functional and conceptual extension

to, not a substitution of, facilities as required in ETSI EN 300 338-2 [2]. Compliance with ETSI EN 300 338-2 [2] is

required unless the present document requires otherwise. According to MSC.302(87) [8] and IEC 62923-1 [3], in case

of conflict between the alert requirements of ETSI EN 300 338-2 [2] and the present document, the requirements and

tests of the present document and of MSC.302(87) [8], IEC 62923-1 [3] and IEC 62923-2 [7] shall take precedence.

According to the BAM concept it is necessary to prioritize BAM alerts and the priorities shall be determined by the

DSC equipment. The BAM concept poses requirements on the alert definition concept, alert properties and the Human

Machine Interface (HMI). For guidance see IEC 62923-1 [3], Annex E.

Further a signalling interface and a protocol are defined for interfacing equipment to a CAM system or to other BAM

compliant equipment according to IEC 62923-1 [3], IEC 61162-1 [4] and IEC 62923-2 [7]. The present document

adopts the signalling protocol and allows, within limits, for DSC alarms from radio equipment to be part of the BAM

concept or otherwise facilitates these.

The EUT shall comply with the requirements of ETSI EN 300 338-2 [2], IEC 62923-1 [3] and IEC 62923-2 [7].

Informative guidance on implementing Bridge Alert Management can be found in Annex B to the present document.

4.1.2 Methods of test and required test results

It shall be confirmed that the EUT complies with the tests in ETSI EN 300 338-2 [2], IEC 62923-1 [3] and

IEC 62923-2 [7].
4.2 Audible signals for BAM alerts vs audible indications
4.2.1 General

BAM alerts are alerts falling into the concept of Bridge Alert Management (BAM) (see MSC.302(87) [8] and

IEC 62923-1 [3]). BAM applies to all alerts presented on, or transferred to, the bridge of a vessel (the concept can also

be applied in other areas). The visual and audible announcements of BAM alerts are always handled on the EUT, and,

within limitations, additionally on the CAM system. The latter of which is not covered in the present document (see

IEC 62923-1 [3] and IEC 62923-2 [7]).

The BAM concept provides amongst others human machine interface requirements and provides a standardized method

to disseminate the information to the CAM system, thus requiring the support of the alert signalling interface and

protocol as defined in IEC 61162-1 [4] and IEC 62923-1 [3].

BAM alerts are distinct from matters such as DSC aural alarms. For the purpose of the present document the audible

presentation and handling of DSC aurals defined in Recommendation ITU-R M.493-15 [1] and ETSI EN 300 338-2 [2]

includes:

• audible signals. An audible signal is intended to recognize the existence and priority of a BAM alert and to

identify the equipment where an audible BAM alert can be handled. In the present document some audible

signals are directly based on DSC aurals, see Annex A and Table A.1;

• sound in the time allotted for speech output. Speech output is intended to recognize the specific BAM alert.

Some DSC aurals are allowed or required for this purpose, see Annex A and Table A.1; and

• audible indications (see also IEC 62923-1 [3]). Most DSC aurals are audible indications for the purpose of the

present document. The audible indications that occur together with a caution are listed in Annex A and

Table A.1.
ETSI
---------------------- Page: 9 ----------------------
10 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)

Audible indications indicating DSC aural alarms or other situations may be applied in the EUT for functionality that

does not warrant a BAM alert, for example a tone for pressing the dedicated distress button, or for situations that do not

warrant an audible BAM alert, for example when the corresponding BAM alerts raised are only characterized as a

caution (thus without audible signal). Situations where ITU has defined sounds that need to be detached from alert

management altogether are therefore not defined in the present document.

Audible indications (mandatory or manufacturer specific) may be applied subject to the requirements defined in

clause 4.2.2.
4.2.2 Requirements

BAM alerts of priority warning and alarm shall not be accompanied with an audible indication (only the audible

presentation defined in IEC 62923-1 [3] is allowed).

All sounds provided by the EUT that are not required by the present document as (part of the) audible presentation of a

BAM alert (i.e. an audible signal for a BAM alert and the signal in the time for 'speech output') are audible indications.

When an audible indication is provided, it shall:
• not be possible to be confused with a BAM alert;
• not be startling;
• be less disturbing then BAM alerts; and
• be either:
- momentary or temporary without user interaction, or

- stop after a defined user action on the equipment, which action is not related to alert management (this

user action shall not involve the alert acknowledgement or silencing features). See also clause A.1.

4.2.3 Methods of test and required test results

It shall be confirmed by inspection of the EUT that BAM alerts of priority warning and alarm are not accompanied with

an audible indication, thus only the audible presentation defined in IEC 62923-1 [3] shall occur.

It shall be confirmed by inspection of the EUT that when an audible indication is provided, e.g. along with a caution

raised or detached from alert management, the audible indication:
• cannot be confused with a BAM alert;
• is not startlin
...

SLOVENSKI STANDARD
oSIST prEN 300 338-7 V1.0.0:2021
01-september-2021
Tehnične karakteristike in merilne metode za naprave, ki generirajo, oddajajo in

sprejemajo digitalni selektivni klic (DSC) v pomorski mobilni storitvi, ki deluje v

območju MF, MF/HF oziroma VHF - 7. del: Izvedba upravljanja z opozorili na mostu
(BAM) v radijski opremi DSC

Technical characteristics and methods of measurement for equipment for generation,

transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF

and/or VHF mobile service - Part 7: Implementation of Bridge Alert Management (BAM)

in DSC radio equipment
Ta slovenski standard je istoveten z: ETSI EN 300 338-7 V1.0.0 (2021-07)
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
47.020.70 Navigacijska in krmilna Navigation and control
oprema equipment
oSIST prEN 300 338-7 V1.0.0:2021 en

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

---------------------- Page: 1 ----------------------
oSIST prEN 300 338-7 V1.0.0:2021
---------------------- Page: 2 ----------------------
oSIST prEN 300 338-7 V1.0.0:2021
Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
EUROPEAN STANDARD
Technical characteristics and methods of measurement
for equipment for generation, transmission
and reception of Digital Selective Calling (DSC)
in the maritime MF, MF/HF and/or VHF mobile service;
Part 7: Implementation of Bridge Alert Management (BAM)
in DSC radio equipment
---------------------- Page: 3 ----------------------
oSIST prEN 300 338-7 V1.0.0:2021
2 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
Reference
DEN/ERM-TGMAR-087-7
Keywords
DSC, GMDSS, maritime, radio, SAR
ETSI
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Sous-Préfecture de Grasse (06) N° w061004871
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© ETSI 2021.
All rights reserved.
ETSI
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oSIST prEN 300 338-7 V1.0.0:2021
3 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 5

1 Scope ........................................................................................................................................................ 6

2 References ................................................................................................................................................ 6

2.1 Normative references ......................................................................................................................................... 6

2.2 Informative references ........................................................................................................................................ 6

3 Definition of terms, symbols and abbreviations ....................................................................................... 7

3.1 Terms .................................................................................................................................................................. 7

3.2 Symbols .............................................................................................................................................................. 8

3.3 Abbreviations ..................................................................................................................................................... 8

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

4.1 Bridge alert management implementation .......................................................................................................... 9

4.1.1 Requirements ................................................................................................................................................ 9

4.1.2 Methods of test and required test results ....................................................................................................... 9

4.2 Audible signals for BAM alerts vs audible indications ...................................................................................... 9

4.2.1 General .......................................................................................................................................................... 9

4.2.2 Requirements .............................................................................................................................................. 10

4.2.3 Methods of test and required test results ..................................................................................................... 10

4.3 Interfaces .......................................................................................................................................................... 10

4.3.1 General requirements .................................................................................................................................. 10

4.3.2 Construction requirements .......................................................................................................................... 11

4.3.2.1 Physical connection ............................................................................................................................... 11

4.3.2.2 Ethernet protocols ................................................................................................................................. 11

4.3.3 Required sentences to support on the interface ........................................................................................... 11

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

5 Bridge Alert Management ...................................................................................................................... 12

5.1 Classification of BAM alerts ............................................................................................................................ 12

5.2 Mapping DSC alarms to BAM alerts ............................................................................................................... 12

5.2.1 Requirements for BAM alerts defined in the present document ................................................................. 12

5.2.2 Requirements for manufacturer defined BAM alerts .................................................................................. 13

5.2.3 Methods of test and required results ........................................................................................................... 14

5.3 Unacknowledged BAM warnings .................................................................................................................... 15

5.3.1 Requirements .............................................................................................................................................. 15

5.3.2 Methods of test and required results ........................................................................................................... 15

6 Detailed requirements for BAM alerts and alert communication ........................................................... 15

6.1 Alert communication ........................................................................................................................................ 15

6.1.1 Requirements .............................................................................................................................................. 15

6.1.2 Method of test and required results ............................................................................................................. 16

6.2 Handling DSC alerts of types "distress" and "distress relay" in received distress automated procedure

and of category "urgency" in received non-distress automated procedure ....................................................... 16

6.2.1 Typical alert flow ........................................................................................................................................ 16

6.2.2 Requirements .............................................................................................................................................. 17

6.2.3 Methods of test and required results ........................................................................................................... 19

6.2.3.1 Distress and Distress Relay ................................................................................................................... 19

6.2.3.2 Urgency ................................................................................................................................................. 20

6.3 Handling DSC alerts in received non-distress automated procedure other than category urgency .................. 21

6.3.1 Typical alert flow ........................................................................................................................................ 21

6.3.2 Requirements .............................................................................................................................................. 21

6.3.3 Methods of test and required results ........................................................................................................... 22

6.4 Handling other alerts related to DSC communication equipment .................................................................... 23

6.4.1 Typical alert flow ........................................................................................................................................ 23

6.4.2 No position data received by DSC equipment ............................................................................................ 25

ETSI
---------------------- Page: 5 ----------------------
oSIST prEN 300 338-7 V1.0.0:2021
4 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)

6.4.2.1 Requirements ........................................................................................................................................ 25

6.4.2.2 Methods of test and required results ..................................................................................................... 25

6.4.3 Antenna Tuner Error or other detected antenna failures (optional) ............................................................ 26

6.4.3.1 Requirements ........................................................................................................................................ 26

6.4.3.2 Methods of test and required results ..................................................................................................... 27

6.4.4 Transmission power error or otherwise inhibited transmission (optional) .................................................. 28

6.4.4.1 Requirements ........................................................................................................................................ 28

6.4.4.2 Methods of test and required results ..................................................................................................... 28

Annex A (normative): Audible indications and BAM alert audible signals ................................... 30

A.1 Aural specifications ................................................................................................................................ 30

Annex B (informative): Guidelines for designing DSC radios to the BAM concept ........................ 32

B.1 Introduction ............................................................................................................................................ 32

History .............................................................................................................................................................. 35

ETSI
---------------------- Page: 6 ----------------------
oSIST prEN 300 338-7 V1.0.0:2021
5 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be

found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to

ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the

ETSI Web server (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not

referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,

essential to the present document.
Trademarks

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ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP

Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the

oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.

Foreword

This draft European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility

and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote phase of the ETSI

standards EN Approval Procedure.

The present document is part 7 of a multi-part deliverable. Full details of the entire series can be found in ETSI

EN 300 338-1 [i.1].
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa

Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 7 ----------------------
oSIST prEN 300 338-7 V1.0.0:2021
6 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)
1 Scope

The present document specifies the minimum requirements for GMDSS radiocommunication system using Digital

Selective Calling (DSC) Class A, with the capability to operate on a SOLAS bridge with the application of SOLAS

regulation V/15 [i.5] and thus implementing the BAM concept defined by IMO in MSC.302(87) [8].

2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

http://docbox.etsi.org/Reference.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are necessary for the application of the present document.

[1] Recommendation ITU-R M.493-15: "Digital selective-calling system for use in the maritime

mobile service".

[2] ETSI EN 300 338-2: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 2: Class A DSC".

[3] IEC 62923-1 (Ed. 1) (2018): "Maritime navigation and radiocommunication equipment and

systems - Bridge alert management - Part 1: Operational and performance requirements, methods

of testing and required test results".

[4] IEC 61162-1 (Ed. 5) (2016): "Maritime navigation and radiocommunication equipment and

systems - Digital interfaces - Part 1: Single talker and multiple listeners".

[5] IEC 61162-2: "Maritime navigation and radiocommunication equipment and systems - Digital

interfaces - Part 2: Single talker and multiple listeners, high-speed transmission".

[6] IEC 61162-450 (Ed. 2) (2018): "Maritime navigation and radiocommunication equipment and

systems - Digital interfaces - Part 450: Multiple talkers and multiple listeners - Ethernet

interconnection".

[7] IEC 62923-2 (Ed. 1) (2018): "Maritime navigation and radiocommunication equipment and

systems - Bridge alert management - Part 2: Alert and cluster identifiers and other additional

features".

[8] IMO Resolution MSC.302(87): "Adoption of performance standards for bridge alert

management".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.
ETSI
---------------------- Page: 8 ----------------------
oSIST prEN 300 338-7 V1.0.0:2021
7 Draft ETSI EN 300 338-7 V1.0.0 (2021-07)

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.

[i.1] ETSI EN 300 338-1: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 1: Common requirements".

[i.2] IEC 62940:2016: "Maritime navigation and radiocommunication equipment and systems -

Integrated communication system (ICS) - Operational and performance requirements, methods of

testing and required test results".

[i.3] IEC 61097-3 (Ed. 2) (2017): "Global maritime distress and safety system (GMDSS) - Part 3:

Digital selective calling (DSC) equipment - Operational and performance requirements, methods

of testing and required results".

[i.4] ETSI EN 300 338-8: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 8: Enabling DSC radio equipment with remote control

capabilities".

[i.5] SOLAS: "International Convention for the Safety Of Life At Sea", 1974 (as amended).

[i.6] IMO Resolution A.1021(26) (2009): "Code on alerts and indicators".
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in ETSI EN 300 338-1 [i.1] and the following apply:

acknowledge: BAM alert acknowledge

audible indication: sound from the EUT that is not associated with raising a BAM alert of priority alarm or warning in

the list of active alerts of the EUT

NOTE: BAM alerts of priority caution and emergency alarm do not have a BAM audible signal, nor have states to

handle acknowledgement or silencing.
EXAMPLE 1: A sound indicating a change of control position.

EXAMPLE 2: Table 7.1.1 of IMO Resolution A.1021(26):2009, "Code on Alerts and Indicators" [i.6].

BAM alert: announcement of abnormal situations and conditions requiring attention

NOTE: BAM alerts are divided in four priorities: emergency alarms, alarms, warnings and cautions.

distress event: unique distress situation identified by two (VHF) or three (MF/HF) parameters of the distress

information; the MMSI of the vessel in distress and the nature of distress and on MF/HF the mode of subsequent

communication
DSC acknowledge: DSC procedure acknowledge
DSC alarm: event in DSC equipment as specified in ETSI EN 300 338-2 [2]
DSC distress acknowledgement: distress DSC message of type Alert Acknowledgement
DSC distress alert: distress DSC message of type Alert
DSC distress relay: distress DSC message of type Relay
DSC urgency message: non-distress DSC message of category Urgency
ETSI
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non-distress DSC message: DSC messages or DSC acknowledgements that do not have the format specifier or

category of "distress"
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
A Assembly
BAM Bridge Alert Management
CAM Central Alert Management
DSC Digital Selective Calling
ED Edition
EN European Norm
ETSI European Telecommunications Standards Institute
EUT Equipment Under Test
GMDSS Global Maritime Distress and Safety System
HF High Frequency
HMI Human Machine Interface
ICS Integrated Communication System
ID Identity
IEC International Electrotechnical Commission
IMO International Maritime Organization
IP Internet Protocol
ITU International Telecommunications Union
ITU-R ITU - Radiocommunications sector
MF Medium Frequency
MMSI Maritime Mobile Service Identity
MSC Marine Safety Committee
N North/Northern latitude
NM Nautical Mile
OOW Officer Of the Watch
RX Receive(d)/Receiving
S South/Southern latitude
SAR Search And Rescue
SFI System Function ID
SNMP Simple Network Management Protocol
SOLAS International convention on the Safety Of Life At Sea 1974
STF Specialist Task Force
TAG Transport Annotate and Group
TCP Transmission Control Protocol
TX Transmit(ted)/Transmitting
UDP User Datagram Protocol
VHF Very High Frequency
ETSI
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4 General requirements
4.1 Bridge alert management implementation
4.1.1 Requirements

Compliance with the BAM concept, including the interfaces required for BAM, is a functional and conceptual extension

to, not a substitution of, facilities as required in ETSI EN 300 338-2 [2]. Compliance with ETSI EN 300 338-2 [2] is

required unless the present document requires otherwise. According to MSC.302(87) [8] and IEC 62923-1 [3], in case

of conflict between the alert requirements of ETSI EN 300 338-2 [2] and the present document, the requirements and

tests of the present document and of MSC.302(87) [8], IEC 62923-1 [3] and IEC 62923-2 [7] shall take precedence.

According to the BAM concept it is necessary to prioritize BAM alerts and the priorities shall be determined by the

DSC equipment. The BAM concept poses requirements on the alert definition concept, alert properties and the Human

Machine Interface (HMI). For guidance see IEC 62923-1 [3], Annex E.

Further a signalling interface and a protocol are defined for interfacing equipment to a CAM system or to other BAM

compliant equipment according to IEC 62923-1 [3], IEC 61162-1 [4] and IEC 62923-2 [7]. The present document

adopts the signalling protocol and allows, within limits, for DSC alarms from radio equipment to be part of the BAM

concept or otherwise facilitates these.

The EUT shall comply with the requirements of ETSI EN 300 338-2 [2], IEC 62923-1 [3] and IEC 62923-2 [7].

Informative guidance on implementing Bridge Alert Management can be found in Annex B to the present document.

4.1.2 Methods of test and required test results

It shall be confirmed that the EUT complies with the tests in ETSI EN 300 338-2 [2], IEC 62923-1 [3] and

IEC 62923-2 [7].
4.2 Audible signals for BAM alerts vs audible indications
4.2.1 General

BAM alerts are alerts falling into the concept of Bridge Alert Management (BAM) (see MSC.302(87) [8] and

IEC 62923-1 [3]). BAM applies to all alerts presented on, or transferred to, the bridge of a vessel (the concept can also

be applied in other areas). The visual and audible announcements of BAM alerts are always handled on the EUT, and,

within limitations, additionally on the CAM system. The latter of which is not covered in the present document (see

IEC 62923-1 [3] and IEC 62923-2 [7]).

The BAM concept provides amongst others human machine interface requirements and provides a standardized method

to disseminate the information to the CAM system, thus requiring the support of the alert signalling interface and

protocol as defined in IEC 61162-1 [4] and IEC 62923-1 [3].

BAM alerts are distinct from matters such as DSC aural alarms. For the purpose of the present document the audible

presentation and handling of DSC aurals defined in Recommendation ITU-R M.493-15 [1] and ETSI EN 300 338-2 [2]

includes:

• audible signals. An audible signal is intended to recognize the existence and priority of a BAM alert and to

identify the equipment where an audible BAM alert can be handled. In the present document some audible

signals are directly based on DSC aurals, see Annex A and Table A.1;

• sound in the time allotted for speech output. Speech output is intended to recognize the specific BAM alert.

Some DSC aurals are allowed or required for this purpose, see Annex A and Table A.1; and

• audible indications (see also IEC 62923-1 [3]). Most DSC aurals are audible indications for the purpose of the

present document. The audible indications that occur together with a caution are listed in Annex A and

Table A.1.
ETSI
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Audible indications indicating DSC aural alarms or other situations may be applied in the EUT for functionality that

does not warrant a BAM alert, for example a tone for pressing the dedicated distress button, or for situations that do not

warrant an audible BAM alert, for example when the corresponding BAM alerts raised are only characterized as a

caution (thus without audible signal). Situations where ITU has defined sounds that need to be detached from alert

management altogether are therefore not defined in the present document.
Audi
...

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