BS EN 62287-1:2011+A1:2014
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Maritime navigation and radiocommunication equipment and systems. Class B shipborne equipment of the automatic identification system (AIS) – Carrier-sense time division multiple access (CSTDMA) techniques
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 100 |
This part of IEC 62287 specifies the minimum operational and performance requirements, methods of testing and required test results for Class B shipborne AIS equipment using CSTDMA techniques. This standard takes into account other associated IEC International Standards and existing national standards, as applicable.
It is applicable for AIS equipment used on craft that are not covered by the mandatory carriage requirement of AIS under SOLAS Chapter V.
An AIS station intended to operate in receive-only mode is not considered a Class B shipborne mobile AIS station.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 8 | CONTENTS |
| 13 | 1 Scope 2 Normative references |
| 14 | 3 Abbreviations |
| 15 | 4 General requirements 4.1 General |
| 17 | 4.2 Manuals 4.3 Marking and identification 5 Environmental, power supply, interference and safety requirements |
| 18 | 6 Performance requirements 6.1 Composition 6.2 Operating frequency channels 6.3 GNSS receiver for position reporting |
| 19 | 6.4 Identification 6.5 AIS information |
| 21 | 6.6 Alarms and indications, fall-back arrangements |
| 22 | Tables Table 1 – Position sensor fallback conditions Table 2 – Use of accuracy (PA) flag |
| 23 | 6.7 User interface 6.8 Protection from invalid control commands |
| 24 | 7 Technical requirements 7.1 General 7.2 Physical layer Figures Figure 1 – OSI layer model |
| 25 | Table 3 – Transceiver characteristics |
| 26 | Table 4 – Transmitter parameters |
| 27 | 7.3 Link layer Table 5 – Receiver parameters |
| 28 | Figure 2 – Carrier-sense timing |
| 29 | Figure 3 – Power versus time mask Table 6 – Definition of timings for Figure 3 |
| 30 | Figure 4 – Transmission packet |
| 31 | Table 7 – Start-buffer |
| 32 | Figure 5 – Training sequence |
| 33 | Table 8 – Summary of the transmission packet Table 9 – Transmission timing |
| 34 | Figure 6 – Transmission timing |
| 35 | Figure 7 – Example for CSTDMA access Table 10 – Access parameters |
| 38 | Table 11 – Use of VDL messages by a Class B”CS” AIS |
| 39 | Table 12 – Number of data bits for use with Message 14 |
| 40 | Table 13 – Contents of Message 18 |
| 41 | Table 14 – Message 24 Part A Table 15 – Message 24 Part B |
| 42 | Table 16 – Contents of Message 23 |
| 43 | 7.4 Network layer Table 17 – Reporting interval settings for use with Message 23 |
| 44 | 7.5 Transport layer Table 18 – Channel management |
| 45 | 7.6 Digital selective calling (DSC) 8 Test conditions 8.1 General 8.2 Normal and extreme test conditions 8.3 Test signals |
| 46 | Figure 8 – Format for repeating four-packet cluster Table 19 – Content of first two packets |
| 47 | 8.4 Test arrangements Table 20 – Fixed PRS data derived from ITU-T O.153 |
| 49 | 9 Power supply, environmental and EMC tests 9.1 Test summary Table 21 – Test summary |
| 50 | 9.2 Vibration/shock 9.3 Performance tests/checks |
| 51 | 9.4 Undervoltage test (brown out) 10 Operational tests 10.1 General |
| 52 | 10.2 Modes of operation |
| 55 | 10.3 Messages extending one time period 10.4 Channel selection 10.5 Internal GNSS receiver |
| 56 | 10.6 AIS information |
| 58 | 10.7 Initialisation period 10.8 Alarms and indications, fall-back arrangements |
| 60 | 10.9 User interface |
| 61 | 11 Physical tests 11.1 TDMA transmitter |
| 62 | Figure 9 – Measurement arrangement for carrier power |
| 63 | Figure 10 – Emission mask |
| 64 | Figure 11 – Measurement arrangement for modulation accuracy |
| 65 | Table 22 – Peak frequency deviation versus time |
| 66 | 11.2 TDMA receivers Figure 12 – Measurement arrangement |
| 67 | Figure 13 – Measurement arrangement with two generators |
| 69 | Figure 14 – SINAD or PER/BER measuring equipment |
| 71 | Figure 15 – Measurement arrangement for intermodulation |
| 72 | Table 23 – Frequencies for inter-modulation test |
| 73 | 11.3 Conducted spurious emissions |
| 74 | 12 Specific tests of link layer 12.1 TDMA synchronisation |
| 75 | 12.2 Carrier-sense tests |
| 76 | Figure 16 – Configuration for carrier-sense threshold test |
| 77 | Table 24 – Required threshold test results Table 25 – Required carrier-sense timing results |
| 78 | 12.3 VDL state/reservations 12.4 Data encoding (bit stuffing) 12.5 Frame check sequence 12.6 Slot allocation (channel access protocol) |
| 79 | 12.7 Assigned operation |
| 80 | 12.8 Message formats |
| 81 | 13 Specific tests of network layer 13.1 Regional area designation by VDL message Figure 17 – Regional area scenario |
| 82 | 13.2 Regional area designation by serial message or manually 13.3 Management of received regional operating settings Table 26 – Required channels in use |
| 85 | Annex A (informative) Results of computer simulations and testing of CSTDMA technology Figure A.1 – Effect on Class A AIS messages of Class B messages |
| 86 | Figure A.2 – Reception of messages by Class A AIS Figure A.3 – Reception of messages by Class B AIS |
| 87 | Figure A.4 – Range achieved by a Class A AIS from Class B AIS |
| 88 | Annex B (informative) Description of the system |
| 89 | Annex C (normative) DSC channel management |
| 90 | Table C.1 – DSC monitoring times |
| 96 | Annex D (informative) Channel management regions Figure D.1 – Channel management regions used for test given in 13.3.1 |
| 97 | Bibliography |
