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IEC 61162-1-2016.pdf
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
3.1 General
3.2 Terms and definitions
4 Manufacturer's documentation
5 Hardware specification
5.1 General
5.2 Interconnecting wire
5.3 Conductor definitions
5.4 Electrical connections/shield requirements
5.5 Connector
5.6 Electrical signal characteristics
5.6.1 General
5.6.2 Signal state definitions
5.6.3 Talker drive circuits
5.6.4 Listener receive circuits
5.6.5 Electrical isolation
5.6.6 Maximum voltage on bus
6 Data transmission
7 Data format protocol
7.1 Characters
7.1.1 General
7.1.2 Reserved characters
7.1.3 Valid characters
7.1.4 Undefined characters
7.1.5 Character symbols
7.2 Fields
7.2.1 String
7.2.2 Address field
7.2.3 Data fields
7.2.4 Checksum field
7.2.5 Sequential message identifier field
7.3 Sentences
7.3.1 General structure
7.3.2 Description of approved sentences
7.3.3 Parametric sentences
7.3.4 Encapsulation sentences
7.3.5 Query sentences
7.3.6 Proprietary sentences
7.3.7 Command sentences
7.3.8 Valid sentences
7.3.9 Multi-sentence messages
7.3.10 Sentence transmission timing
7.3.11 Additions to approved sentences
7.4 Error detection and handling
7.5 Handling of deprecated sentences
8 Data content
8.1 Character definitions
8.2 Field definitions
8.3 Approved sentences
8.3.1 General format
8.3.2 AAM – Waypoint arrival alarm
8.3.3 ABK – AIS addressed and binary broadcast acknowledgement
8.3.4 ABM – AIS addressed binary and safety related message
8.3.5 ACA – AIS channel assignment message
8.3.6 ACK – Acknowledge alarm
8.3.7 ACN – Alert command
8.3.8 ACS – AIS channel management information source
8.3.9 AIR – AIS interrogation request
8.3.10 AKD – Acknowledge detail alarm condition
8.3.11 ALA – Report detailed alarm condition
8.3.12 ALC – Cyclic alert list
8.3.13 ALF – Alert sentence
8.3.14 ALR – Set alarm state
8.3.15 APB – Heading/track controller (autopilot) sentence B
8.3.16 ARC – Alert command refused
8.3.17 BBM – AIS broadcast binary message
8.3.18 BEC – Bearing and distance to waypoint – Dead reckoning
8.3.19 BOD – Bearing origin to destination
8.3.20 BWC – Bearing and distance to waypoint – Great circle
8.3.21 BWR – Bearing and distance to waypoint – Rhumb line
8.3.22 BWW – Bearing waypoint to waypoint
8.3.23 CUR – Water current layer – Multi-layer water current data
8.3.24 DBT – Depth below transducer
8.3.25 DDC – Display dimming control
8.3.26 DOR – Door status detection
8.3.27 DPT – Depth
8.3.28 DSC – Digital selective calling information
8.3.29 DSE – Expanded digital selective calling
8.3.30 DTM – Datum reference
8.3.31 EPV – Command or report equipment property value
8.3.32 ETL – Engine telegraph operation status
8.3.33 EVE – General event message
8.3.34 FIR – Fire detection
8.3.35 FSI – Frequency set information
8.3.36 GBS – GNSS satellite fault detection
8.3.37 GEN – Generic binary information
8.3.38 GFA – GNSS fix accuracy and integrity
8.3.39 GGA – Global positioning system (GPS) fix data
8.3.40 GLL – Geographic position – Latitude/longitude
8.3.41 GNS – GNSS fix data
8.3.42 GRS – GNSS range residuals
8.3.43 GSA – GNSS DOP and active satellites
8.3.44 GST – GNSS pseudorange noise statistics
8.3.45 GSV – GNSS satellites in view
8.3.46 HBT – Heartbeat supervision sentence
8.3.47 HCR – Heading correction report
8.3.48 HDG – Heading, deviation and variation
8.3.49 HDT – Heading true
8.3.50 HMR – Heading monitor receive
8.3.51 HMS – Heading monitor set
8.3.52 HRM – heel angle, roll period and roll amplitude measurement device
8.3.53 HSC – Heading steering command
8.3.54 HSS – Hull stress surveillance systems
8.3.55 HTC – Heading/track control command; HTD – Heading /track control data
8.3.56 LR1 – AIS long-range reply sentence 1
8.3.57 LR2 – AIS long-range reply sentence 2
8.3.58 LR3 – AIS long-range reply sentence 3
8.3.59 LRF – AIS long-range function
8.3.60 LRI – AIS long-range interrogation
8.3.61 MOB – Man over board notification
8.3.62 MSK – MSK receiver interface
8.3.63 MSS – MSK receiver signal status
8.3.64 MTW – Water temperature
8.3.65 MWD – Wind direction and speed
8.3.66 MWV – Wind speed and angle
8.3.67 NAK – Negative acknowledgement
8.3.68 NRM – NAVTEX receiver mask
8.3.69 NRX – NAVTEX received message
8.3.70 NSR – Navigation status report
8.3.71 OSD – Own ship data
8.3.72 POS – Device position and ship dimensions report or configuration command
8.3.73 PRC – Propulsion remote control status
8.3.74 RLM – Return link message
8.3.75 RMA – Recommended minimum specific LORANC data
8.3.76 RMB – Recommended minimum navigation information
8.3.77 RMC – Recommended minimum specific GNSS data
8.3.78 ROR – Rudder order status
8.3.79 ROT – Rate of turn
8.3.80 RRT – Report route transfer
8.3.81 RPM – Revolutions
8.3.82 RSA – Rudder sensor angle
8.3.83 RSD – Radar system data
8.3.84 RTE – Routes
8.3.85 SFI – Scanning frequency information
8.3.86 SMI – SafetyNET Message, All Ships/NavArea
8.3.87 SM2 – SafetyNET Message, Coastal Warning Area
8.3.88 SM3 – SafetyNET Message, Circular Area address
8.3.89 SM4 – SafetyNET Message, Rectangular Area Address
8.3.90 SMB – IMO SafetyNET Message Body
8.3.91 SPW – Security password sentence
8.3.92 SSD – AIS ship static data
8.3.93 STN – Multiple data ID
8.3.94 THS – True heading and status
8.3.95 TLB – Target label
8.3.96 TLL – Target latitude and longitude
8.3.97 TRC – Thruster control data
8.3.98 TRL – AIS transmitter-non-functioning log
8.3.99 TRD – Thruster response data
8.3.100 TTD – Tracked target data
8.3.101 TTM – Tracked target message
8.3.102 TUT – Transmission of multi-language text
8.3.103 TXT – Text transmission
8.3.104 UID – User identification code transmission
8.3.105 VBW – Dual ground/water speed
8.3.106 VDM – AIS VHF data-link message
8.3.107 VDO – AIS VHF data-link own-vessel report
8.3.108 VDR – Set and drift
8.3.109 VER – Version
8.3.110 VHW – Water speed and heading
8.3.111 VLW – Dual ground/water distance
8.3.112 VPW – Speed measured parallel to wind
8.3.113 VSD – AIS voyage static data
8.3.114 VTG – Course over ground and ground speed
8.3.115 WAT – Water level detection
8.3.116 WCV – Waypoint closure velocity
8.3.117 WNC – Distance waypoint to waypoint
8.3.118 WPL – Waypoint location
8.3.119 XDR – Transducer measurements
8.3.120 XTE – Cross-track error, measured
8.3.121 XTR – Crosstrack error, dead reckoning
8.3.122 ZDA – Time and date
8.3.123 ZDL – Time and distance to variable point
8.3.124 ZFO – UTC and time from origin waypoint
8.3.125 ZTG – UTC and time to destination waypoint
9 Applications
9.1 Example parametric sentences
9.1.1 General
9.1.2 Example 1 – LORAN-C latitude/longitude
9.1.3 Example 2 – LORANC arrival alarm
9.1.4 Example 3 – Proprietary sentence
9.1.5 Example 4 – RMA examples
9.1.6 Example 5 – FSI examples
9.1.7 Example 6 – MSK/MSS examples
9.1.8 Example 7 – DSC and DSE sentences
9.1.9 Example 8 – FIR, DOR and WAT sentences
9.2 Example encapsulation sentences
9.3 Examples of receiver diagrams
Annexes
Annex A (informative) Glossary
Annex B (normative) Guidelines for methods of testing and required test results
B.1 General
B.2 Definition of environmental conditions for the tests
B.3 Examination of the manufacturer's documentation
B.4 Test of hardware
B.4.1 Interface units
B.4.2 Input circuit test
B.4.3 Check of electrical isolation
B.4.4 Maximum input voltage test
B.4.5 Test arrangement for performance tests according to IEC 60945
B.4.6 Test under maximum interface workload
B.4.7 Test for correct parsing of sentences
B.4.8 Test under long term conditions
B.4.9 Protocol test of the interface of the EUT
Annex C (normative) Six-bit binary field conversion
Annex D (normative) Alarm system fields
Annex E (informative) Example of use of FIR, DOR and WAT sentences
E.1 Example of the use of system status messages
E.2 Use of system division codes
E.3 Send complete status
E.4 Change measurement point status
E.5 Point status change during a status update
E.6 Failure in a sub-system
E.7 Status updates when a sub-system is in fault
E.8 Signal a correction of a sub-system fault
Annex F (informative) Example encapsulation sentence
F.1 Example encapsulation sentence
F.2 AIS VHF data-link message VDM sentence encapsulation example
F.3 Background discussion – Encapsulation coding
F.4 Decoding the encapsulated string
F.5 Conversion from symbols to binary bits
F.6 Organising the binary message data
F.7 Interpreting the decoded binary strings
Bibliography
Figures
Figure 1 – Listener receive circuit
Figure 2 – Data transmission format
Figure 3 – Example 1, J-FET, N channel, optoisolator based listener circuit
Figure 4 – Example 2, NPN optoisolator based listener circuit
Figure C.1 – 6-bit binary code converted to valid IEC 61162-1 character
Figure C.2 – Valid IEC 61162-1 character converted to 6-bit binary code
Figure E.1 – Example system diagram
Figure F.1 – Message data format
Figure F.2 – Work sheet for decoding and interpreting encapsulated string
Tables
Table 1 – Reserved characters
Table 2 – Valid characters
Table 3 – Character symbol
Table 4 – Talker identifier mnemonics
Table 5 – Field type summary
Table B.1 – Example – Special characters
Table B.2 – Example – Parsing
Table B.3 – Example – Future extensions
Table B.4 – Example – Data string GGA sent by the EUT to the test receiver (listener)
Table B.5 – Example – Checksum data sent
Table B.6 – Example – Data string GNS received by the EUT
Table B.7 – Example – Checksum data received
Table B.8 – Example – Break of data line
Table B.9 – Example – Receiving interval
Table B.10 – Example – Talker ID
Table C.1 – Six-bit binary field conversion table
Table D.1 – System alarm fields
Table F.1 – Example message from ITU-R M.1371
IEC 61162-1
Edition 5.0 2016-08
®
INTERNATIONAL
STANDARD
Maritime navigation and radiocommunication equipment and systems – Digital
interfaces –
Part 1: Single talker and multiple listeners
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IEC 61162-1
Edition 5.0 2016-08
®
INTERNATIONAL
STANDARD
Maritime navigation and radiocommunication equipment and systems – Digital
interfaces –
Part 1: Single talker and multiple listeners
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020.70
ISBN 978-2-8322-3594-2
Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
colourinside
– 2 –
IEC 61162-1:2016 IEC 2016
CONTENTS
3.1
3.2
5.1
5.2
5.3
5.4
5.5
5.6
5.6.1
5.6.2
5.6.3
5.6.4
5.6.5
5.6.6
FOREWORD ........................................................................................................................8
INTRODUCTION ................................................................................................................ 10
1
Scope ......................................................................................................................... 11
2 Normative references .................................................................................................. 11
Terms and definitions .................................................................................................. 13
3
General .............................................................................................................. 13
Terms and definitions .......................................................................................... 13
4 Manufacturer's documentation ..................................................................................... 13
5 Hardware specification ................................................................................................ 13
General .............................................................................................................. 13
Interconnecting wire ............................................................................................ 13
Conductor definitions .......................................................................................... 13
Electrical connections/shield requirements .......................................................... 14
Connector ........................................................................................................... 14
Electrical signal characteristics ........................................................................... 14
General ....................................................................................................... 14
Signal state definitions ................................................................................. 14
Talker drive circuits ...................................................................................... 14
Listener receive circuits ............................................................................... 14
Electrical isolation ........................................................................................ 15
Maximum voltage on bus .............................................................................. 15
6 Data transmission ........................................................................................................ 15
7 Data format protocol .................................................................................................... 16
Characters .......................................................................................................... 16
General ....................................................................................................... 16
Reserved characters .................................................................................... 16
Valid characters ........................................................................................... 16
Undefined characters ................................................................................... 16
Character symbols ....................................................................................... 16
Fields ................................................................................................................. 16
String .......................................................................................................... 16
Address field ................................................................................................ 16
Data fields ................................................................................................... 17
Checksum field ............................................................................................ 18
Sequential message identifier field ............................................................... 18
Sentences........................................................................................................... 19
General structure ......................................................................................... 19
Description of approved sentences ............................................................... 19
Parametric sentences .................................................................................. 20
Encapsulation sentences ............................................................................. 21
Query sentences .......................................................................................... 23
Proprietary sentences .................................................................................. 23
Command sentences ................................................................................... 24
Valid sentences ........................................................................................... 25
Multi-sentence messages ............................................................................. 25
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.3.8
7.3.9
7.1.1
7.1.2
7.1.3
7.1.4
7.1.5
7.2.1
7.2.2
7.2.3
7.2.4
7.2.5
7.1
7.2
7.3
IEC 61162-1:2016 IEC 2016
– 3 –
7.4
7.5
8.1
8.2
8.3
7.3.10
7.3.11
Sentence transmission timing ....................................................................... 25
Additions to approved sentences .................................................................. 25
Error detection and handling ............................................................................... 26
Handling of deprecated sentences....................................................................... 26
8 Data content ................................................................................................................ 26
Character definitions ........................................................................................... 26
Field definitions .................................................................................................. 28
Approved sentences ........................................................................................... 32
General format ............................................................................................. 32
AAM – Waypoint arrival alarm ...................................................................... 32
ABK – AIS addressed and binary broadcast acknowledgement ..................... 32
ABM – AIS addressed binary and safety related message ............................ 33
ACA – AIS channel assignment message ..................................................... 34
ACK – Acknowledge alarm ........................................................................... 36
ACN – Alert command .................................................................................. 36
ACS – AIS channel management information source .................................... 37
AIR – AIS interrogation request .................................................................... 37
AKD – Acknowledge detail alarm condition ................................................... 38
ALA – Report detailed alarm condition .......................................................... 39
ALC – Cyclic alert list ................................................................................... 40
ALF – Alert sentence ................................................................................... 41
ALR – Set alarm state .................................................................................. 43
APB – Heading/track controller (autopilot) sentence B .................................. 43
ARC – Alert command refused ..................................................................... 44
BBM – AIS broadcast binary message .......................................................... 45
BEC – Bearing and distance to waypoint – Dead reckoning .......................... 46
BOD – Bearing origin to destination ............................................................. 46
BWC – Bearing and distance to waypoint – Great circle ................................ 46
BWR – Bearing and distance to waypoint – Rhumb line ................................ 46
BWW – Bearing waypoint to waypoint .......................................................... 47
CUR – Water current layer – Multi-layer water current data .......................... 47
DBT – Depth below transducer ..................................................................... 48
DDC – Display dimming control .................................................................... 48
DOR – Door status detection ........................................................................ 49
DPT – Depth ................................................................................................ 50
DSC – Digital selective calling information.................................................... 50
DSE – Expanded digital selective calling ...................................................... 51
DTM – Datum reference ............................................................................... 51
EPV – Command or report equipment property value .................................... 52
ETL – Engine telegraph operation status ...................................................... 54
EVE – General event message ..................................................................... 55
FIR – Fire detection ..................................................................................... 55
FSI – Frequency set information ................................................................... 56
GBS – GNSS satellite fault detection ............................................................ 57
GEN – Generic binary information ................................................................ 58
GFA – GNSS fix accuracy and integrity ........................................................ 59
GGA – Global positioning system (GPS) fix data .......................................... 60
GLL – Geographic position – Latitude/longitude ............................................ 61
8.3.1
8.3.2
8.3.3
8.3.4
8.3.5
8.3.6
8.3.7
8.3.8
8.3.9
8.3.10
8.3.11
8.3.12
8.3.13
8.3.14
8.3.15
8.3.16
8.3.17
8.3.18
8.3.19
8.3.20
8.3.21
8.3.22
8.3.23
8.3.24
8.3.25
8.3.26
8.3.27
8.3.28
8.3.29
8.3.30
8.3.31
8.3.32
8.3.33
8.3.34
8.3.35
8.3.36
8.3.37
8.3.38
8.3.39
8.3.40
– 4 –
IEC 61162-1:2016 IEC 2016
GNS – GNSS fix data ................................................................................... 61
GRS – GNSS range residuals ...................................................................... 64
GSA – GNSS DOP and active satellites ........................................................ 65
GST – GNSS pseudorange noise statistics ................................................... 67
GSV – GNSS satellites in view ..................................................................... 68
HBT – Heartbeat supervision sentence ......................................................... 69
HCR – Heading correction report ................................................................. 70
HDG – Heading, deviation and variation ....................................................... 70
HDT – Heading true ..................................................................................... 71
HMR – Heading monitor receive ................................................................... 71
HMS – Heading monitor set ......................................................................... 72
HRM – heel angle, roll period and roll amplitude measurement device .......... 72
HSC – Heading steering command ............................................................... 73
HSS – Hull stress surveillance systems ........................................................ 73
HTC – Heading/track control command; HTD – Heading /track control
data ............................................................................................................. 73
LR1 – AIS long-range reply sentence 1 ........................................................ 75
LR2 – AIS long-range reply sentence 2 ........................................................ 75
LR3 – AIS long-range reply sentence 3 ........................................................ 76
LRF – AIS long-range function ..................................................................... 76
LRI – AIS long-range interrogation ............................................................... 77
MOB – Man over board notification .............................................................. 78
MSK – MSK receiver interface ...................................................................... 80
MSS – MSK receiver signal status ................................................................ 80
MTW – Water temperature ........................................................................... 80
MWD – Wind direction and speed ................................................................. 80
MWV – Wind speed and angle ..................................................................... 81
NAK – Negative acknowledgement ............................................................... 81
NRM – NAVTEX receiver mask .................................................................... 82
NRX – NAVTEX received message .............................................................. 83
NSR – Navigation status report .................................................................... 85
OSD – Own ship data................................................................................... 86
POS – Device position and ship dimensions report or configuration
command ..................................................................................................... 87
PRC – Propulsion remote control status ....................................................... 88
RLM – Return link message ......................................................................... 89
RMA – Recommended minimum specific LORAN-C data .............................. 90
RMB – Recommended minimum navigation information ................................ 90
RMC – Recommended minimum specific GNSS data .................................... 91
ROR – Rudder order status .......................................................................... 92
ROT – Rate of turn....................................................................................... 93
RRT – Report route transfer ......................................................................... 93
RPM – Revolutions ...................................................................................... 94
RSA – Rudder sensor angle ......................................................................... 94
RSD – Radar system data ............................................................................ 94
RTE – Routes .............................................................................................. 95
SFI – Scanning frequency information .......................................................... 96
SMI – SafetyNET Message, All Ships/NavArea ............................................. 96
SM2 – SafetyNET Message, Coastal Warning Area ...................................... 98
8.3.41
8.3.42
8.3.43
8.3.44
8.3.45
8.3.46
8.3.47
8.3.48
8.3.49
8.3.50
8.3.51
8.3.52
8.3.53
8.3.54
8.3.55
8.3.56
8.3.57
8.3.58
8.3.59
8.3.60
8.3.61
8.3.62
8.3.63
8.3.64
8.3.65
8.3.66
8.3.67
8.3.68
8.3.69
8.3.70
8.3.71
8.3.72
8.3.73
8.3.74
8.3.75
8.3.76
8.3.77
8.3.78
8.3.79
8.3.80
8.3.81
8.3.82
8.3.83
8.3.84
8.3.85
8.3.86
8.3.87
IEC 61162-1:2016 IEC 2016
– 5 –
SM3 – SafetyNET Message, Circular Area address .................................... 100
8.3.88
SM4 – SafetyNET Message, Rectangular Area Address ............................. 102
8.3.89
SMB – IMO SafetyNET Message Body ....................................................... 105
8.3.90
SPW – Security password sentence ........................................................... 106
8.3.91
SSD – AIS ship static data ......................................................................... 107
8.3.92
STN – Multiple data ID ............................................................................... 107
8.3.93
THS – True heading and status .................................................................. 108
8.3.94
TLB – Target label ..................................................................................... 108
8.3.95
TLL – Target latitude and longitude ............................................................ 108
8.3.96
TRC – Thruster control data ....................................................................... 109
8.3.97
TRL – AIS transmitter-non-functioning log .................................................. 110
8.3.98
8.3.99
TRD – Thruster response data ................................................................... 111
8.3.100 TTD – Tracked target data ......................................................................... 111
8.3.101 TTM – Tracked target message .................................................................. 113
8.3.102 TUT – Transmission of multi-language text ................................................. 114
8.3.103 TXT – Text transmission ............................................................................ 115
8.3.104 UID – User identification code transmission ................................................ 116
8.3.105 VBW – Dual ground/water speed ................................................................ 116
8.3.106 VDM – AIS VHF data-link message ............................................................ 117
8.3.107 VDO – AIS VHF data-link own-vessel report ............................................... 118
8.3.108 VDR – Set and drift .................................................................................... 118
8.3.109 VER – Version ........................................................................................... 119
8.3.110 VHW – Water speed and heading ............................................................... 119
8.3.111 VLW – Dual ground/water distance ............................................................. 120
8.3.112 VPW – Speed measured parallel to wind .................................................... 120
8.3.113 VSD – AIS voyage static data ..................................................................... 120
8.3.114 VTG – Course over ground and ground speed ............................................ 121
8.3.115 WAT – Water level detection ...................................................................... 121
8.3.116 WCV – Waypoint closure velocity ............................................................... 122
8.3.117 WNC – Distance waypoint to waypoint ....................................................... 123
8.3.118 WPL – Waypoint location ........................................................................... 123
8.3.119 XDR – Transducer measurements .............................................................. 123
8.3.120 XTE – Cross-track error, measured ............................................................ 124
8.3.121 XTR – Cross-track error, dead reckoning.................................................... 125
8.3.122 ZDA – Time and date ................................................................................. 125
8.3.123 ZDL – Time and distance to variable point .................................................. 125
8.3.124 ZFO – UTC and time from origin waypoint .................................................. 125
8.3.125 ZTG – UTC and time to destination waypoint .............................................. 126
Applications............................................................................................................... 126
Example parametric sentences .......................................................................... 126
General ..................................................................................................... 126
Example 1 – LORAN-C latitude/longitude ................................................... 126
Example 2 – LORAN-C arrival alarm .......................................................... 126
Example 3 – Proprietary sentence .............................................................. 127
Example 4 – RMA examples ....................................................................... 127
Example 5 – FSI examples ......................................................................... 128
Example 6 – MSK/MSS examples ............................................................... 128
Example 7 – DSC and DSE sentences ....................................................... 128
9.1.1
9.1.2
9.1.3
9.1.4
9.1.5
9.1.6
9.1.7
9.1.8
9.1
9
– 6 –
IEC 61162-1:2016 IEC 2016
9.1.9
9.2
9.3
B.1
B.2
B.3
B.4
B.4.1
B.4.2
B.4.3
B.4.4
B.4.5
B.4.6
B.4.7
B.4.8
B.4.9
Example 8 – FIR, DOR and WAT sentences ............................................... 129
Example encapsulation sentences ..................................................................... 129
Examples of receiver diagrams.......................................................................... 130
Annex A (informative) Glossary ........................................................................................ 131
Annex B (normative) Guidelines for methods of testing and required test results .............. 138
General ............................................................................................................ 138
Definition of environmental conditions for the tests ............................................ 138
Examination of the manufacturer's documentation ............................................. 138
Test of hardware ............................................................................................... 139
Interface units ............................................................................................ 139
Input circuit test ......................................................................................... 139
Check of electrical isolation ....................................................................... 139
Maximum input voltage test ........................................................................ 139
Test arrangement for performance tests according to IEC 60945 ................ 139
Test under maximum interface workload ..................................................... 139
Test for correct parsing of sentences ......................................................... 140
Test under long term conditions ................................................................. 141
Protocol test of the interface of the EUT ..................................................... 141
Annex C (normative) Six-bit binary field conversion .......................................................... 147
Annex D (normative) Alarm system fields ......................................................................... 150
Annex E (informative) Example of use of FIR, DOR and WAT sentences .......................... 159
Example of the use of system status messages ................................................. 159
Use of system division codes ............................................................................ 159
Send complete status ........................................................................................ 160
Change measurement point status .................................................................... 161
Point status change during a status update ....................................................... 161
Failure in a sub-system ..................................................................................... 161
Status updates when a sub-system is in fault .................................................... 162
Signal a correction of a sub-system fault ........................................................... 162
Annex F (informative) Example encapsulation sentence ................................................... 163
Example encapsulation sentence ...................................................................... 163
AIS VHF data-link message VDM sentence encapsulation example ................... 163
Background discussion – Encapsulation coding ................................................. 163
Decoding the encapsulated string ...................................................................... 165
Conversion from symbols to binary bits ............................................................. 165
Organising the binary message data ................................................................. 166
Interpreting the decoded binary strings .............................................................. 166
Bibliography ..................................................................................................................... 169
Figure 1 – Listener receive circuit ....................................................................................... 15
Figure 2 – Data transmission format.................................................................................... 15
Figure 3 – Example 1, J-FET, N channel, opto-isolator based listener circuit ..................... 130
Figure 4 – Example 2, NPN opto-isolator based listener circuit .......................................... 130
Figure C.1 – 6-bit binary code converted to valid IEC 61162-1 character ........................... 148
Figure C.2 – Valid IEC 61162-1 character converted to 6-bit binary code ........................... 149
Figure E.1 – Example system diagram .............................................................................. 160
E.1
E.2
E.3
E.4
E.5
E.6
E.7
E.8
F.1
F.2
F.3
F.4
F.5
F.6
F.7
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