ETSI TS 101 570-6 V1.1.1 (2020-01)

Interoperability Testing for Maritime Digital Selective Calling (DSC) Radios; Part 6: VHF Class M Test Descriptions

DTS/ERM-TGMAR-541-6

General Information

• Status: Published
• Publication Date: 06-Jan-2020
• Technical Committee: ERM TGMARINE - ERM Maritime and radio amateur activities
• Current Stage: 12 - Completion
• Due Date: 16-Jan-2020
• Completion Date: 07-Jan-2020

Standards Content (Sample)

ETSI TS 101 570-6 V1.1.1 (2020-01)






TECHNICAL SPECIFICATION
Interoperability Testing for Maritime
Digital Selective Calling (DSC) Radios;
Part 6: VHF Class M Test Descriptions

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2 ETSI TS 101 570-6 V1.1.1 (2020-01)



Reference
DTS/ERM-TGMAR-541-6
Keywords
DSC, interoperability, maritime, TSS&TP
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3 ETSI TS 101 570-6 V1.1.1 (2020-01)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definition of terms, symbols and abbreviations . 5
3.1 Terms . 5
3.2 Symbols . 6
3.3 Abbreviations . 6
4 Test configurations . 6
5 Test Suite Structure (TSS) . 7
6 Test Descriptions (TD) . 8
6.1 Accidental activation, non activation . 8
6.2 Open loop activation . 9
6.3 Closed loop activation . 11
6.3.1 Applicability . 11
6.3.2 Closed loop operation . 11
6.3.3 Open loop operation. 14
6.4 Test mode . 14
Annex A (informative): Bibliography . 17
History . 18

ETSI

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4 ETSI TS 101 570-6 V1.1.1 (2020-01)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is 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 IPR Policy, no investigation, 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.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Electromagnetic compatibility and
Radio spectrum Matters (ERM).
The present document is part 6 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.1].
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

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5 ETSI TS 101 570-6 V1.1.1 (2020-01)
1 Scope
The present document contains the Test Descriptions (TD) for interoperability testing of the DSC MOB devices
(class M) DSC radio equipment.
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] ETSI EN 300 338-6: "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 6: Class M DSC".
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.
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 TS 101 570-1: "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Interoperability Testing for Maritime Digital Selective Calling (DSC) Radios; Part 1:
Requirements catalogue".
[i.2] 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".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
acknowledged: automated procedure it indicates that the objective of the initial DSC message has been achieved
activation: initial triggering of the MoB device i.e. both parts of the two step procedure are performed
ETSI

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6 ETSI TS 101 570-6 V1.1.1 (2020-01)
class M: specific class of DSC functionality for use by man overboard devices
closed loop: class M individual transmission to own vessel
distress alert: name given to the single distress DSC message with the format symbol 112
leap second: second which is occasionally inserted into the atomic scale of reckoning time in order to bring it into line
with solar time
open loop: class M transmitting to all ships (broadcast) 'using All ships call types'
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI EN 300 338-1 [i.2] and the following apply:
AIS Automatic Identification System
CF (Test) ConFiguration
DSC Digital Selective Calling
EUT Equipment Under Test
GNSS Global Navigation Satellite System
MOB Man OverBoard
MMSI Maritime Mobile Service Identity
TD Test Description
TP Test Purpose
TSS Test Suite Structure
UTC Universal Time Co-ordinated
4 Test configurations
This clause defines all test configurations used. Each test description referes to one or multiple test configurations. It is
assumed that the initial state of all the euipment involved in the test configuration is 'standby' for DSC radios or
'deactivated' for MOB devices, i.e. unless stated otherwise the pre-test conditions of each test description assume
standby/idle mode for the equipment.
An arrow connection between devices indicates that these devices are in communication range.
ETSI

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7 ETSI TS 101 570-6 V1.1.1 (2020-01)

Figure 1: Configurations for Handheld Class M EUT
5 Test Suite Structure (TSS)
The following table shows the Test Suite Structure contained in the present document.
Test Group Test Sub-Group (sub-group ID)
VHF
Sending Distress Alerts (SDA)
Sending Distress Relays and Acknowledgements (SDRA)
Other Calls (OC)
Interface and other
functions (IOF)
General test (GEN)

ETSI

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8 ETSI TS 101 570-6 V1.1.1 (2020-01)
Each test description is described through a tabular format conforming to the following convention:
Interoperability Test Description
Identifier: A unique identifier. The test description identifiers are conforming to the
TD_DSC__VHF_MOB_ naming convention, where:
is the sequential number within the test sub-group
Summary: Short description of the test objective
Configuration: The relevant test configuration, referencing the test set configurations listed in the Annex
References: The reference indicates the clauses of the base standard specifications in which the related
interoperability requirement is expressed
Pre-test conditions: Defines in which initial state the test equipment has to be to apply the actual test description
Step Test Sequence Verdict
Pass Fail
1 The description of the individual condition to verify Yes/No criteria of Yes/No criteria of
or action to perform the outcome of this the outcome of
verification step (if this verification
applicable) step (if applicable)
2 …
Final verdict:

6 Test Descriptions (TD)
6.1 Accidental activation, non activation
Interoperability Test Description
Identifier: TD_DSC_VHF_MOB_0001
Summary: Test that none of the EUT's controls can activate the device on its own
Configuration: CF_1
References: ETSI EN 300 338-6 [1], clause 4.4
Pre-test conditions: QE1 in standby and EUT deactivated/idle.
If the EUT is marked DSC-MOB-C make sure its 'own vessel' MMSI is preprogrammed with
the MMSI of QE1.
Step Test Sequence Verdict
Pass Fail
1 Operate the EUT's first mechanical action alone
2 Verify the EUT is not activated (no MOB event is triggered) Yes No
3 Return the EUT's first mechanical action to its original position
4 Operate the EUT's second mechanical action alone (see note)
5 Verify the EUT is not activated (no MOB event is triggered) Yes No
Final verdict:
NOTE: Where the second action is replaced by an immersion sensor then immerse the EUT in sea water.

ETSI

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9 ETSI TS 101 570-6 V1.1.1 (2020-01)
Interoperability Test Description
Identifier: TD_DSC_VHF_MOB_0001
Summary: Test of self cancellation before a MOB distress procedure is triggered
Configuration: CF_1
References: ETSI EN 300 338-6 [1], clauses 5.2.1.0 and 4.5
Pre-test conditions: QE1 in standby and EUT deactivated/idle.
If the EUT is marked DSC-MOB-C make sure its 'own vessel' MMSI is preprogrammed with
the MMSI of QE1.
Step Test Sequence Verdict
Pass Fail
1 Activate the EUT (trigger a MOB event)
2 Verify audible (see note) and visual indication of EUT activation Yes No
3 Deactivate the EUT within 10 seconds of activation
4 Verify the EUT's audible (see note) indication ceases and the EUT Yes No
displays the correct visual indication for local deactivation
5 Verify that QE1 remains in standby and no distress alert or Yes No
distress alert relay message is received
Final verdict:
NOTE: Intrinsically safe MOB devices may not necessarily give an audible warning.

6.2 Open loop activation
The tests in this clause apply only to MOB devices that start in open loop. These devices are marked DSC-MOB-O.
Tests for devices marked DSC-MOB-C continue from clause 6.3.
Interoperability Test Description
Identifier: TD_DSC_VHF_MOB_0002
Summary: Test of initial activation and self cancellation before a GNSS position fix is obtained
Configuration: CF_1
References: ETSI EN 300 338-6 [1], clauses 5.2.1.2, 5.2.1.3, 4.5 and 4.8
Pre-test conditions: QE1 in standby and EUT deactivated/idle. Inhibit EUT from being able to obtain a GNSS
fix throughout the duration of the test
Step Test Sequence Verdict
Pass Fail
1 Activate the EUT (trigger a MOB event)
2 Verify audible (see note) and visual indication of EUT activation Yes No
3 Wait for 30 seconds after activation
4 Verify that QE1 receives a distress alert message of type man Yes No
overboard without time or position
5 Verify that QE1 correctly displays the EUT's 'self ID' MMSI Yes No
6 Deactivate the EUT
7 Verify the EUT's audible (see note) indication ceases and the EUT Yes No
displays the correct visual indication for local deactivation
8 Verify that QE1 received the EUT's acknowledgement and at top Yes No
level the procedure stage is displayed as 'Cancelled'
Final verdict:
NOTE: Intrinsically safe MOB devices may not necessarily give an audible warning.

ETSI

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