IEC 61162-1:2007

INTERNATIONAL IEC
STANDARD 61162-1
Third edition
2007-04
Maritime navigation and radiocommunication
equipment and systems –
Digital interfaces
Part 1:
Single talker and multiple listeners

Reference number
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INTERNATIONAL IEC
STANDARD 61162-1
Third edition
2007-04
Maritime navigation and radiocommunication
equipment and systems –
Digital interfaces
Part 1:
Single talker and multiple listeners

PRICE CODE
Commission Electrotechnique Internationale XF
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 61162-1 © IEC:2007(E)
CONTENTS
FOREWORD.4

INTRODUCTION.6

1 Scope.7

2 Normative references.7

3 Terms and definitions .8

4 Manufacturer's documentation .8

5 Hardware specification.8
5.1 Interconnecting wire.8
5.2 Conductor definitions .8
5.3 Electrical connections/shield requirements.8
5.4 Connector.9
5.5 Electrical signal characteristics .9
6 Data transmission.10
7 Data format protocol .10
7.1 Characters.10
7.2 Fields .11
7.3 Sentences .13
7.4 Error detection and handling .20
7.5 Handling of deprecated sentences .20
8 Data content .20
8.1 Character definitions.20
8.2 Field definitions .23
8.3 Approved sentences .25
9 Applications .90
9.1 Example parametric sentences .90
9.2 Example encapsulation sentences .94
9.3 Examples of receiver diagrams .94

Annex A (informative) Glossary .96
Annex B (normative) Guidelines for methods of testing and required test results. 103
Annex C (normative) Six-bit binary field conversion . 109
Annex D (normative) Alarm system fields . 112
Annex E (informative) Example of use of FIR, DOR and WAT sentences . 121
Annex F (informative) Example encapsulation sentence . 125

Bibliography . 131

Figure 1 – Listener receive circuit.9
Figure 2 – Data transmission format.10
Figure 3 – Example 1, J-FET, N channel, opto-isolator based listener circuit.94
Figure 4 – Example 2, NPN opto-isolator based listener circuit .95
Figure C.1 – 6-bit binary code converted to valid IEC 61162-1 character . 110
Figure C.2 – Valid IEC 61162-1 character converted to 6-bit binary code . 111

61162-1 © IEC:2007(E) – 3 –
Figure E.1 – Example system diagram. 122

Figure F.1 – Message data format . 126

Figure F.2 – Work sheet for decoding and interpreting encapsulated string. 130

Table 1 – Reserved characters.20

Table 2 – Valid characters.21

Table 3 – Character symbol.22

Table 4 – Talker identifier mnemonics .23

Table 5 – Field type summary.24

Table B.1 – Example – Data string GGA sent by the EUT to the test receiver (listener) . 106
Table B.2 – Checksum .107
Table B.3 – Example – data string GGA received by the EUT . 107
Table B.4 – Example – Checksum . 108
Table B.5 – Break of data line . 108
Table C.1 – Six-bit binary field conversion table. 109
Table D.1 – System alarm fields . 112
Table F.1 – Example message from ITU-R M.1371. 129

– 4 – 61162-1 © IEC:2007(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION

___________
MARITIME NAVIGATION AND RADIOCOMMUNICATION

EQUIPMENT AND SYSTEMS –
DIGITAL INTERFACES –
Part 1: Single talker and multiple listeners

FOREWORD
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International Standard IEC 61162-1 has been prepared by IEC technical committee 80:
Maritime navigation and radiocommunication equipment and systems.
This third edition cancels and replaces the second edition published in 2000, and constitutes a
technical revision. This part of IEC 61162 is closely aligned with NMEA 0183 version 3.01.
It also replaces PAS 61162-100 (2002), PAS 61162-101 (2003) and PAS 61162-102 (2003).
The main changes with respect to the previous edition are listed below:
• Normative references have been renumbered from 1.2 to 2, Terms and definitions from 1.3
to 3 and Manufacturers documentation from 2 to 4. Thereafter all clauses are numbered
two ahead of those in the previous edition.
• Clause 7 (Clause 5 in the previous edition) has been expanded to include two types of start
of sentence delimiters. The conventional delimiter “$” is used with the conventional
sentences which are now called parametric sentences. A new delimiter “!” identifies

61162-1 © IEC:2007(E) – 5 –
sentences that conform to special purpose encapsulation. The example applications in

Clause 9 (Clause 7 in the previous edition) have been expanded to describe both types.

• The tables in Clause 8 (Clause 6 in the previous edition) have been updated. The previous

Table 5 (Approved sentence formatters) and the associated Annex A (Minimum required

sentences) have been deleted.
• Clause 8 has been expanded to include new and revised sentences.

• Four new annexes have been added to support the text.

The text of this standard is based upon the following documents:

FDIS Report on voting
80/464/FDIS 80/473/RVD
Full information on the voting for the approval of t
...