IEC PAS 62923-101:2022

IEC PAS 62923-101 ®
Edition 1.0 2022-09
PUBLICLY AVAILABLE
SPECIFICATION
colour
inside
Maritime navigation and radiocommunication equipment and systems – Bridge
alert management
Part 101: Guideline on implementation
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IEC PAS 62923-101 ®
Edition 1.0 2022-09
PUBLICLY AVAILABLE
SPECIFICATION
colour
inside
Maritime navigation and radiocommunication equipment and systems – Bridge

alert management
Part 101: Guideline on implementation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020; 47.020.70 ISBN 978-2-8322-5618-3

– 2 – IEC PAS 62923-101:2022 © IEC 2022
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Purpose . 7
4.1 Bridge alert management – Implementation . 7
4.2 Structure of document . 7
5 Implementing BAM in an equipment standard . 8
5.1 Implementing a concept . 8
5.2 Implementation process . 8
5.3 Subjects for consideration when developing/modifying an individual
equipment standard . 10
5.3.1 General . 10
5.3.2 Description of subjects . 10
5.4 Role of a Central Alert Management system (CAM system) . 11
6 Alert properties . 12
6.1 Harmonization of alert sound vs legacy alarm sounds . 12
6.1.1 General . 12
6.1.2 Emergency alarms . 13
6.1.3 Sounds in standards where MSC.302(87) does not take precedence . 14
6.2 Priority . 14
6.3 Category . 16
6.4 Functional vs technical alerts . 19
6.5 Alert management using context information . 21
6.5.1 General . 21
6.5.2 Different operational modes – Different alert requirements . 21
6.5.3 Other operational sectors . 22
7 Pre-BAM power failures and alarm-outputs . 23
7.1 General . 23
7.2 Pre-BAM alerts . 23
7.2.1 Applying ALR sentences . 23
7.2.2 Pre-BAM alert ‘alarm condition’ . 23
7.2.3 Applying dry contacts to inform about abnormal conditions (e.g. system
failure) . 24
7.2.4 Pre-BAM alert ‘power failure’ . 24
7.3 Alerting on power problems . 24
7.3.1 General . 24
7.3.2 Description . 25
7.3.3 Discussion . 25
7.3.4 Resolution . 26
8 Alert Identifiers . 27
8.1 General . 27
8.2 Application . 28
9 Clarification regarding presentation of alerts in the list of active alerts . 29
10 WG16 assistance. 29
Bibliography . 31

Figure 1 – BAM is a concept applied to equipment rather than a piece of equipment . 8
Figure 2 – Role of a CAM system in Bridge Alert Management . 12
Figure 3 – Typical decision tree for the classification of alert priority . 15
Figure 4 – Typical decision tree for the classification of alert priority after escalation of
a warning . 16
Figure 5 – EUT scope with one or two power inputs with one or two power sources . 26

Table 1 – Blocks of alert identifier end numbers in each 10 consecutive alert
identifiers above 300 . 28

– 4 – IEC PAS 62923-101:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT
AND SYSTEMS – BRIDGE ALERT MANAGEMENT

Part 101: Guideline on implementation

FOREWORD
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A PAS is an intermediate specification made available to the public and needing a lower level
of consensus than an International Standard to be approved by vote (simple majority).
IEC PAS 62923-101 has been prepared by IEC technical committee 80: Maritime navigation
and radiocommunication equipment and systems.
The text of this PAS is based on the This PAS was approved for publication
following document: by the P-members of the committee
concerned as indicated in the following
document
Draft PAS Report on voting
80/1041/DPAS 80/1044/RVDPAS
Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned may transform it into an International Standard.

This PAS shall remain valid for an initial maximum period of 2 years starting from the publication
date. The validity may be extended for a single period up to a maximum of 2 years, at the end
of which it shall be published as another type of normative document, or shall be withdrawn.

IMPORTANT – The "colour inside" logo on the cover page of this document indicates that it
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– 6 – IEC PAS 62923-101:2022 © IEC 2022
MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT
AND SYSTEMS – BR
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