SRT Marine Systems plc 4180051 AIS AtoN Transceiver User Manual Chronos manual
Software Radio Technology plc AIS AtoN Transceiver Chronos manual
User manual
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| Document ID | 2672974 |
| Application ID | L3eDuIHEB6C+7DVCQJqdtQ== |
| Document Description | User manual |
| Short Term Confidential | No |
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| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 437.54kB (5469284 bits) |
| Date Submitted | 2015-07-09 00:00:00 |
| Date Available | 2016-01-05 00:00:00 |
| Creation Date | 2015-01-30 09:06:02 |
| Producing Software | Acrobat Distiller 10.1.13 (Windows) |
| Document Lastmod | 2015-01-30 09:06:02 |
| Document Title | Chronos manual.book |
| Document Creator | FrameMaker 9.0 |
| Document Author: | neilp |
Chronos AIS Aids to Navigation Transceiver Chronos AIS AtoN Sensor Interface Installation and operation manual 201-0636:1 Table of contents Glossary............................................................................................... 5 Notices ................................................................................................. 6 2.1 Safety warnings ................................................................................................................................. 6 2.2 General notices.................................................................................................................................. 6 2.3 Regulatory information....................................................................................................................... 7 Introduction ......................................................................................... 9 3.1 About AIS........................................................................................................................................... 9 3.2 System overview.............................................................................................................................. 10 3.3 Supported AIS messages ................................................................................................................ 11 AIS AtoN product variants ............................................................... 13 Installation ........................................................................................ 14 5.1 What’s in the box (AIS AtoN transceiver) ........................................................................................ 15 5.2 What’s in the box (Sensor Interface) ............................................................................................... 16 5.3 Preparing for installation .................................................................................................................. 17 5.4 Mounting the AIS AtoN transceiver and Sensor Interface ............................................................... 18 Transceiver and Sensor Interface connections ............................. 19 6.1 AIS AtoN transceiver connections ................................................................................................... 19 6.2 Sensor Interface connections .......................................................................................................... 22 Connecting external sensors and systems.................................... 23 7.1 Connecting sensors and systems to the AIS AtoN Transceiver ..................................................... 23 7.2 Connecting sensors and systems to the Sensor Interface .............................................................. 24 Configuration using proAtoN .......................................................... 31 8.1 proAtoN installation.......................................................................................................................... 31 8.2 Application layout............................................................................................................................. 32 8.3 AIS AtoN transceiver configuration.................................................................................................. 33 8.4 Transceiver diagnostics ................................................................................................................... 42 8.5 Sensor configuration ....................................................................................................................... 45 8.6 Other features.................................................................................................................................. 49 Operation ........................................................................................... 50 9.1 Standby operation............................................................................................................................ 50 10 Data messages and data sources ................................................... 51 10.1 Configurations without the Sensor Interface.................................................................................... 51 10.2 Configurations with the Sensor Interface......................................................................................... 51 11 Manual configuration........................................................................ 59 11.1 Basic Type 1 AIS AtoN configuration (FATDMA operation) ............................................................ 59 11.2 NMEA0183 / IEC61162 configuration sentences ............................................................................ 59 11.3 Proprietary configuration sentences ................................................................................................ 65 12 Technical specification .................................................................... 68 Page 1 12.1 Applicable equipment standards...................................................................................................... 68 12.2 AIS AtoN transceiver specification................................................................................................... 68 12.3 Sensor Interface specification ......................................................................................................... 70 12.4 Configuration interface specification................................................................................................ 71 12.5 Drawings and dimensions................................................................................................................ 72 13 Firmware upgrade procedure .......................................................... 73 Page 2 Table of figures Figure 1 The AIS network ........................................................................................................................... 9 Figure 2 Typical AIS AtoN system ............................................................................................................ 10 Figure 3 Typical AIS AtoN transceiver system connections ..................................................................... 14 Figure 4 Typical AIS AtoN transceiver and Sensor Interface system connections ................................... 14 Figure 5 What’s in the box (AIS AtoN transceiver) ................................................................................... 15 Figure 6 What’s in the box (Sensor Interface) .......................................................................................... 16 Figure 7 Mounting the AIS AtoN transceiver and Sensor Interface .......................................................... 18 Figure 8 Transceiver connector locations ................................................................................................. 19 Figure 9 Pin numbering for the 18 way Link connector............................................................................. 20 Figure 10 Sensor Interface connections ..................................................................................................... 22 Figure 11 Pin numbering for Sensor 1 and Sensor 2 connectors ............................................................... 25 Figure 12 Light current sense loop circuit ................................................................................................... 27 Figure 13 Isolated digital input internal reference circuit and examples of external circuits ....................... 28 Figure 14 Non-isolated digital input reference circuit and examples of external circuits ............................ 29 Figure 15 Relay drive output reference circuit ............................................................................................ 30 Figure 16 proAtoN application layout.......................................................................................................... 32 Figure 17 proAtoN tab synchronisation icons ............................................................................................. 33 Figure 18 proAtoN message schedule tab layout ....................................................................................... 35 Figure 19 Example FATDMA schedule....................................................................................................... 37 Figure 20 Example RATDMA schedule ...................................................................................................... 38 Figure 21 Virtual AtoN configuration tab layout .......................................................................................... 39 Figure 22 Status input configuration tab layout........................................................................................... 40 Figure 23 Alert messages configuration tab layout..................................................................................... 41 Figure 24 Initial sensor settings tab ............................................................................................................ 45 Figure 25 Sensor settings tab ..................................................................................................................... 45 Figure 26 ADC settings tab......................................................................................................................... 46 Figure 27 Message settings tab.................................................................................................................. 47 Figure 28 System information tab ............................................................................................................... 48 Figure 29 Live data tab ............................................................................................................................... 49 Figure 30 AIS AtoN Transceiver dimensions .............................................................................................. 72 Figure 31 Sensor Interface dimensions ...................................................................................................... 72 Figure 32 vxsend utility screenshot............................................................................................................. 73 Page 3 List of tables Table 1 Pin numbers and functions for the supplied 18 way backshell connector .................................. 21 Table 2 Pin numbers and functions for the Sensor Interface Sensor 1 connector .................................. 25 Table 3 Pin numbers and functions for the Sensor Interface Sensor 2 connector .................................. 26 Table 4 General Extended Sensor Interface Configuration Commands.................................................. 53 Table 5 Zeni Lite Message #6 Configuration commands ........................................................................ 54 Table 6 ADC configuration commands .................................................................................................... 55 Table 7 Data mapping for message #6 DAC 235, FI 10.......................................................................... 56 Table 8 Data mapping for message #6 Zeni Lite format.......................................................................... 57 Table 9 Sensor Configuration Options..................................................................................................... 58 Page 4 Glossary Glossary AIS Automatic Identification System AtoN Aid to Navigation BIIT Built In Integrity Test FATDMA Fixed Access Time Division Multiple Access GLONASS Global Navigation Satellite System (term specific to the satellite navigation system operated by the Russian Federation) GNSS Global Navigation Satellite system (general term used to refer to any satellite navigation system) GPS Global Positioning System IALA International Association of Marine Aids to Navigation and Lighthouse Authorities IEC International Electrotechnical commission ITU International Telecommunication Union MID (in the context of MMSI) Maritime Identification Digits MMSI Maritime Mobile Service Identity NMEA National Marine Electronics Association RACON RAdar beaCON, A radar transponder used to mark navigational hazards. RATDMA Random Access Time Division Multiple Access RS232 Serial data communications standard - see TIA-232-F RS422 Serial data communications standard see TIA-422-B SART Search And Rescue Transponder SOLAS Safety of Life at Sea SDI-12 Serial Data Interface at 1200 Baud USB Universal Serial Bus UTC Coordinated Universal Time VDL VHF Data Link VHF Very High Frequency VSWR Voltage Standing Wave Ratio Page 5 Notices Notices When reading this manual please pay particular attention to warnings marked with the warning triangle symbol shown on the left. These are important messages for safety, installation and usage of the transceiver. 2.1 Safety warnings This equipment must be installed in accordance with the instructions provided in this manual. Failure to do so will seriously affect its performance and reliability. It is strongly recommended that a trained technician installs and configures this product. This equipment is intended as an aid to navigation and is not a replacement for proper navigational judgement. Information provided by the equipment must not be relied upon as accurate. User decisions based upon information provided by the equipment are done so entirely at the users own risk. 2.2 General notices 2.2.1 Position source All marine Automatic Identification System (AIS) transceivers utilise a satellite based location system such as the Global Positioning Satellite (GPS) network. The general term for satellite based location systems is Global Navigation Satellite System or GNSS. This manual refers to either GNSS or GPS depending on context. 2.2.2 The accuracy of a GNSS position fix is variable and affected by factors such as the antenna positioning, how many satellites are used to determine a position and for how long satellite information has been received. Product category This product is categorised as 'exposed' in accordance with the definitions provided in IEC 60945. 2.2.3 Disposal of the product and packaging Please dispose of this product in accordance with the European WEEE Directive or with the applicable local regulations for disposal of electrical equipment. Every effort has been made to ensure the packaging for the product is recyclable. Please dispose of the packaging in an environmentally friendly manner. 2.2.4 Accuracy of this manual This manual is intended as a guide to the installation, setup and use of this product. Every effort has been made to ensure the accuracy of this manual, however due to continuous product development this manual may not be accurate in all respects, therefore no guarantee is offered. If you are in any doubt about any aspect of this product, please contact your supplier. The part number and revision number of this manual are shown on the lower right hand corner of the front cover. Page 6 Notices 2.3 Regulatory information 2.3.1 Declaration of conformity - R&TTE We, SRT Marine System Solutions Ltd, of Wireless House, Westfield Industrial Estate, Midsomer Norton, Bath, BA3 4BS declare under our own responsibility that the product Chronos AIS AtoN transceiver to which this declaration refers conforms to the relevant sections of the following standards and / or other normative documents. For Article 3.1 (a) [Health & Safety]: EN60950-1:2006/A2:2013, relevant sections not addressed by IEC60945:2002-08 IEC 60945:2002-08 For Article 3.1 (b) [EMC]: IEC 60945:2002-08 For Article 3.2 [Spectrum usage]: IEC62320-2:2008 IEC61108-1:2003-07 For Article 3.3 [Special requirements]: IEC62320-2:2008 We, SRT Marine System Solutions Ltd, declare that all essential radio test suites have been carried out and the above named product is in conformity with all essential requirements of Directive 1999/5/EC. The conformity assessment procedure referred to in Article 10 and detailed in Annex [III] and [IV] of Directive 1999/5/EC has been followed with the involvement of the following Notified Body. TÜV SÜD BABT. Octagon House, Concorde Way, Segensworth North, Fareham, Hampshire PO15 5RL England. Identification mark: 0168. The technical documentation relevant to the above equipment will be held at: SRT Marine Solutions Ltd, Wireless House, Westfield Industrial Estate, Midsomer Norton, Bath, BA3 4BS, England. Tel:+44 1761 409500 www.srt-marinesystems.com Name: Neil Peniket, Chief Operating Officer Date: 26th January 2015 2.3.2 CE Marking The product carries the CE mark, notified body number and alert symbol as required by the R&TTE directive. The product is intended for sale in the following member states: Great Britain, France, Spain, Sweden, Austria, Netherlands, Portugal, Denmark, Norway, Belgium, Italy, Finland, Ireland, Luxembourg, Germany, Czech Republic, Bulgaria, Cyprus, Estonia, Greece, Hungary, Iceland, Latvia, Lithuania, Malta, Romania, Slovak Republic, Slovenia, Switzerland/Liechtenstein, Poland. Restrictions of use: Some EU member states may require a licence to operate this equipment. Page 7 Notices 2.3.3 FCC and Industry Canada notices A. FCC Part 15.19(a) statement: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. A. Part 15 Clause 15.105 [EMC Class A/B statement]: Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. B. Part 15 Clause 15.21 [Do not modify warning] Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. C. RSS-Gen license-exempt notice: This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. D. RSS-Gen antenna notice: Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. E. FCC & IC RF Exposure related information RF Exposure Guidance: This equipment complies with FCC and Industry Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter not described under this FCC ID and IC certification number, except in accordance with FCC and Industry Canada multi-transmitter product procedures. Guide d'Exposition RF : ce matériel est conforme aux normes FCC et Industrie Canada relatives aux limites maximales d'exposition aux radiations en milieu non-contrôlé. Cet équipement doit être installé et opéré à une distance de plus de 20cm entre la source de radiation et le corps de l'utilisateur. Cet émetteur ne peut être situé à proximité de ou opérer conjointement avec tout autre émetteur ou toute antenne non-classifiés sous le numéro de certification FCC ID et IC, sauf s'ils respectent la procédure FCC et Industrie Canada concernant tout produit multi-émetteurs. Page 8 Introduction Introduction 3.1 About AIS The marine Automatic Identification System (AIS) is a location and vessel information reporting system. It allows vessels equipped with AIS to automatically and dynamically share and regularly update their position, speed, course and other information such as vessel identity with similarly equipped vessels. Position is derived from GNSS and communication between vessels is by Very High Frequency (VHF) digital transmissions. There are a number of types of AIS device as follows: ● Class A transceivers. These are designed to be fitted to commercial vessels such as cargo ships and large passenger vessels. Class A transceivers transmit at a higher VHF signal power than Class B transceivers and therefore can be received by more distant vessels, they also transmit more frequently. Class A transceivers are mandatory on all vessels over 300 gross tonnes on international voyages and certain types of passenger vessels under the SOLAS mandate. ● Inland AIS stations. Similar to Class A transceivers with additional features for use on Inland waterways. ● Class B transceivers. Similar to Class A transceivers in many ways, but are normally lower cost due to the less stringent performance requirements. Class B transceivers transmit at a lower power and at a lower reporting rate than Class A transceivers. ● AIS base stations. AIS base stations are used by Vessel Traffic Systems to monitor and control the transmissions of AIS transceivers. ● Aids to Navigation (AtoN) transceivers. AIS AtoNs are transceivers mounted on buoys or other hazards to shipping which transmit details of their location to the surrounding vessels. ● AIS receivers. AIS receivers receive transmissions from Class A transceivers, Class B transceivers, AIS AtoNs and AIS base stations but do not transmit any information about the vessel on which they are installed. This product is an AIS Aid to Navigation (AtoN) transceiver. Figure 1 The AIS network Page 9 Introduction 3.2 System overview This AIS AtoN is a self contained device supporting both Type 1 (transmit only) and Type 3 (transmit and receive) operation. It is primarily designed for installation in enclosed environments such as buoy equipment cabinets on physical AtoN structures. The AIS AtoN transceiver can be supplied with an optional Sensor Interface which interfaces to sensors (such as weather instruments) and transmits measured data via AIS messages to surrounding vessels and shore stations. The AIS AtoN has an exceptionally low power consumption making it suitable for installation on floating Aids to Navigation with solar charged power systems. The lowest power consumption is achieved when operating as a Type 1 AIS AtoN transmitting only position information. Further description of Type 1 and Type 3 operation is provided below. Figure 2 3.2.1 Typical AIS AtoN system Type 1 AIS AtoN A Type 1 AIS AtoN is a transmit only device using the FATDMA (Fixed Access Time Division Multiple Access) access scheme. This requires that the AIS AtoN is configured with fixed AIS time slots in which it will transmit AIS messages. Mobile AIS stations operating in the area where a Type 1 AIS AtoN is installed need to be aware of the time slots allocated to the AIS AtoN. The slots allocated to the AIS AtoN are 'reserved' by AIS Base Station transmissions covering the area in which the AIS AtoN is installed. This mode of operation therefore requires that an AIS base station is operating in the same area as the AIS AtoN and is configured to make the necessary slot reservations. 3.2.2 Type 3 AIS AtoN A Type 3 AIS AtoN has transmit and receive capability and can therefore use either the FATDMA or RATDMA (Random Access Time Division Multiple Access) access schemes. The RATDMA scheme allows the AIS AtoN to internally allocate slots for transmission of AIS messages without reservation from an AIS Base Station. AIS receive capability also allows a Type 3 AIS AtoN to be configured and queried for status via AIS messages sent from a shore station (known as VDL configuration). An extension of VDL configuration is 'Chaining' where configuration and query commands are passed along a 'chain' of AIS AtoN stations to a distant station beyond the range of direct communication with a shore station. Page 10 Introduction 3.3 Supported AIS messages The transceiver supports the following AIS message types. ITU-R M.1371-4 Message number Description Binary addressed message Binary acknowledge message Binary broadcast message Transmitted / Received by AtoN Transceiver Application Transmitted and received The transceiver uses message 6 to send binary data (relating to connected sensors and systems) to a specific shore station. The transceiver can also receive addressed binary messages for the purpose of configuration and control. Transmitted and received This message is transmitted to acknowledge receipt of a binary message. The transceiver can also receive acknowledgements relating to its own addressed binary transmissions. Transmitted The transceiver uses message 8 to broadcast binary data (relating to connected sensors and systems) to all other AIS stations in range. 12 Addressed safety related message Transmitted The transceiver can be configured to transmit an addressed safety related message to a specific shore station to alert the operator to an off position, vessel proximity or built in test failure condition. 13 Acknowledgement of received addressed safety related message Received The transceiver receives message 13 in acknowledgement of its transmission of message 12. Transmitted The transceiver can be configured to transmit a broadcast safety related message to all AIS stations in range to warn of an off position, vessel proximity or built in test failure condition. 14 Safety related broadcast message Page 11 Introduction ITU-R M.1371-4 Message number 20 21 25 Page 12 Transmitted / Received by AtoN Transceiver Application Received When operating as a Type 3 transceiver slot reservations made by a shore station using message 20 will be observed by the transceiver. Aids to Navigation report Transmitted This is the primary message transmitted by the transceiver. It contains the position, identification and status of the transceiver. Single slot binary message Transmitted and received This message can be used for remote (over the air) configuration of the transceiver and configuration of a ‘chain’ of transceivers. Description Data link management message AIS AtoN product variants AIS AtoN product variants The AIS AtoN transceiver can be operated with or without connection to the optional Sensor Interface product which is available to purchase separately. The AIS AtoN transceiver can be configured to operate as either type 1 or type 3 either with or without connection to the Sensor Interface. A system of icons is used throughout this manual to highlight which AIS AtoN configurations a particular section, paragraph or illustration applies to. Sections without any icons apply to all configurations. Type 1 AIS AtoN transceiver without Sensor Interface Type 1 AIS AtoN transceiver with Sensor Interface Type 3 AIS AtoN transceiver without Sensor Interface Type 3 AIS AtoN transceiver with Sensor Interface 1S 3S Installation of an AIS AtoN transceiver without connection to a Sensor Interface will limit the functionality of the installation to transmission of AIS message 21 including the following information: ● Name of AtoN ● Position of AtoN ● Status of AtoN (including AtoN health, Light health and status and RACON status) Installation without connection to a Sensor Interface is recommended when their is limited power availability and no requirement for the AIS AtoN to broadcast other information such as meteorological or hydrological data. When the AIS AtoN transceiver is installed with a Sensor Interface the capability is extended to enable the broadcasting of data from connected sensors and systems. However the power consumption of the combined AIS AtoN transceiver and Sensor Interface will be higher and therefore suited to an installation where power consumption is less critical. Page 13 Installation Installation 1S 3S The AIS AtoN transceiver has been designed for ease of installation. The transceiver is self contained requiring only an external VHF antenna, GPS antenna and power source for a basic installation. A typical system and connection diagram is provided in Figure 3. The AIS AtoN transceiver can be connected to a Sensor Interface when a more extensive range of sensors and external devices are required as part of the AIS AtoN installation. Figure 4 shows a typical installation with a Sensor Interface included. VHF antenna RACON (optional) GPS antenna AIS AtoN Transceiver Light (optional) Earth bond PC (Configuration only) 12/24V DC supply Figure 3 Typical AIS AtoN transceiver system connections VHF antenna Other sensors and monitoring equipment (optional) GPS antenna AIS AtoN Transceiver Sensor Interface RACON (optional) Earth bond Light (optional) 12/24V DC supply Figure 4 PC (Configuration only) Typical AIS AtoN transceiver and Sensor Interface system connections The main installation and commissioning steps are: 1. Mount the Transceiver in a suitable location on the physical Aid to Navigation. 2. Install a VHF antenna according to the manufacturers instructions. 3. Install the supplied GNSS antenna. 4. Connect any sensor interfaces and light / RACON monitoring signals. 5. Connect power to the AIS AtoN transceiver and optional Sensor Interface. 6. Configure and commission the AIS AtoN transceiver and optional Sensor Interface via USB (note that this step can be carried out on shore prior to installation in a remote location). Page 14 Installation 5.1 What’s in the box (AIS AtoN transceiver) Figure 5 shows the items included with the AIS AtoN transceiver. The following section gives a brief overview of each item. Please ensure all items are present and if any are missing please contact your supplier. GPS antenna Backshell connector AIS AtoN Transceiver Fixings Quick Start Guide USB configuration cable Figure 5 Power and USB cable Product CD What’s in the box (AIS AtoN transceiver) ● AIS AtoN transceiver - The AIS AtoN transceiver unit. ● Fixings - Fixing screws for mounting the transceiver to the physical AtoN structure and for connection of the earth stud to a suitable earth point. ● Power and USB cable - Cable for connection of power and USB. ● USB configuration cable - USB cable for connection to a PC when configuring the transceiver. This cable mates with the Power and USB cable. ● Support tools CD - CD containing the product manual, transceiver PC configuration and diagnostic tools (proAtoN). ● Quick Start Guide - A brief introduction to installation and configuration of the AIS AtoN transceiver. ● Backshell connector - Connectors required for making connection to the sensor interfaces as described in section 6.1.2. ● GPS antenna - GPS antenna and 10m cable. Page 15 Installation 5.2 What’s in the box (Sensor Interface) 1S 3S Figure 5 shows the typical items included with the optional Sensor Interface. The following section gives a brief overview of each item. Please ensure all items are present and if any are missing please contact your supplier. Quick Start Guide Product CD Sensor Interface Backshell connectors (x2) USB configuration cable Figure 6 Link cable Fixings What’s in the box (Sensor Interface) ● Sensor Interface - The Sensor Interface unit. ● Fixings - Fixing screws for mounting the Sensor Interface to the physical AtoN structure. ● Link cable - Cable for connection of the Sensor Interface to the AIS AtoN transceiver as defined in section 6. ● USB configuration cable - USB cable for connection to a PC when configuring the Sensor Interface. ● Support tools CD - CD containing the product manual, transceiver PC configuration and diagnostic tools (proAtoN). ● Quick Start Guide - A brief introduction to installation and configuration of the Sensor Interface. ● Backshell connectors - Connectors required for making connection to the sensor interfaces as described in section 7.2. Page 16 Installation 5.3 Preparing for installation In addition to the items provided with the AIS AtoN transceiver and Sensor Interface the following items will be required to complete the installation. 5.3.1 Tools and wiring accessories The following tools and wiring accessories are required for installation: ● Posidriv screwdriver (size PZ2). ● M4 spanner. ● Soldering equipment for wiring of the connectors included (only required if external sensors are required). ● Suitable multi-core cable for connection of sensor devices via the included backshell connector. The cable should have a minimum outer diameter of 6.5mm and a maximum outer dimension of 9.5mm. It is important to select cable which meets this criteria to ensure the assembled cable and connector is waterproof. Please contact your supplier for recommendations of suitable cable. ● Self amalgamating tape for use with the VHF and GPS connections. ● A mounting pole with a one inch (1”) 14 TPI thread and fixings to screw the supplied GPS antenna onto. 5.3.2 VHF antenna and cable Connection of a suitable VHF antenna will be required for the AIS AtoN transceiver to operate. A robust marine band VHF antenna suited to the environment in which the AtoN will operate should be selected. The antenna cable should be terminated with a male N type connector. Any joins in the antenna cable should be made with co-axial connectors and sealed appropriately. It is recommended that RG-213 cable (or equivalent) is used to connect the VHF antenna. See section 7 for further details. Suggested models are: ● Shakespeare MD-70 ● AC Marine CX4AIS, CELmar0-1AIS, CELmar1-1AIS ● Procomm CXL 2-3LW/hm, CXL 2-1/h-N 5.3.3 PC for configuration A PC running Windows XP/Vista/7 with at least one USB port is required for configuration of the AIS AtoN transceiver and Sensor Interface. Page 17 Installation 5.4 Mounting the AIS AtoN transceiver and Sensor Interface The AIS AtoN transceiver and optional Sensor Interface can be mounted to a physical aid to navigation using supplied fixing screws, washers and nuts. The screws are inserted through the four mounting holes on the product. Refer to Figure 7 for guidance on mounting the AIS AtoN transceiver and Sensor Interface. Overall dimensions for the AIS AtoN transceiver are provided in Figure 31 and for the Sensor Interface in Figure 32. Consideration should be given to cable routing and VHF and GNSS antenna location when selecting an installation location. The supplied link cable which connects the AIS AtoN transceiver to the Sensor Interface is 0.5m in length. When using the optional Sensor Interface it is important to locate the Sensor Interface unit and AIS AtoN transceiver unit close enough for the cable to reach between the relevant connectors without stressing the cable. Figure 7 Page 18 Mounting the AIS AtoN transceiver and Sensor Interface Transceiver and Sensor Interface connections Transceiver and Sensor Interface connections 1S 3S The supplied sealing cap must be fitted to all unused connections. 6.1 AIS AtoN transceiver connections The function of each connector is identified in Figure 8. Earth stud VHF antenna GPS antenna Link Power/USB Figure 8 6.1.1 Transceiver connector locations Power and USB connector 1S 3S This connector provides power to the transceiver along with access to the USB port for configuration. To connect to the AIS AtoN transceiver via USB the USB accessory cable must be connected to the Power/USB accessory cable. When configuration is complete the USB accessory cable can be disconnected and the supplied sealing cap fitted to the USB connector on the Power/USB accessory cable. Power connections should be kept as short as possible in order to minimise any reduction in voltage at the product power supply interface. Cable used to connect power to the supplied power cable should have conductors with a minimum cross sectional area of 0.75mm2. The transceiver requires a nominal 12VDC or 24VDC supply and will operate between 9.6VDC and 32.6VDC. The peak current drawn when operating from 12VDC is 3A and when operating from 24VDC is 1.5A. Power should be connected using the supplied interface connector and cable. It is recommended that 5A rated fuses are installed in line with the power supply positive and negative connections. Overall power consumption is dependent on the configuration of the AIS AtoN transceiver messaging and whether a Sensor Interface is in use. Minimum power consumption figures are provided in section 12. 6.1.2 18 way Link connector 1S 3S The 18 way Link connector has two functions, only one of which can be used at any time: 1. To provide connection to a Light, RACON and an external NMEA0183 port. 2. To connect to the Sensor Interface via the Link cable supplied with the Sensor Interface. When the Link connector is used to connect to the Sensor Interface it cannot be used to connect direct to a light and/or RACON. In this configuration such connections should be made via the Sensor Interface. Page 19 Transceiver and Sensor Interface connections 6.1.3 Using the 18 way link connector for direct connection of external equipment When using the Link connector to connect to a Light and/or RACON, the supplied backshell connector should be wired to suitable cable of the required length. Figure 9 shows the pin numbering and assembly method for the supplied backshell connector and Table 1 shows the corresponding pin functions. The cable should have a minimum outer diameter of 6.5mm and a maximum outer dimension of 9.5mm. It is important to select cable which meets this criteria to ensure the assembled cable and connector is waterproof. Please contact your supplier for recommendations of suitable cable. 16 12 Figure 9 10 13 17 14 11 15 18 Pin numbering for the 18 way Link connector Pin Signal name Function and notes N/C Do not use N/C Do not use NMEA0183_TX1_A Connection A of the NMEA0183 TX1 port NMEA0183_RX1_A Connection A of the NMEA0183 RX1 port NMEA0183_TX1_B Connection B of the NMEA0183 TX1 port NMEA0183_RX1_B Connection B of the NMEA0183 RX1 port NMEA0183 GND Ground reference for the NMEA0183 port LIGHT_PWR+ Positive ON/OFF connection to an external light LIGHT_PWR- Negative ON/OFF connection to an external light 10 LIGHT_HEALTH+ Positive power connection to an external light health status 11 LIGHT_HEALTH- Negative power connection to an external light health status 12 RACON_STATUS+ Positive status connection to an external RACON 13 RACON_STATUS- Negative status connection to an external RACON 14 N/C Do not use Page 20 Transceiver and Sensor Interface connections Pin Signal name Function and notes 15 N/C Do not use 16 N/C Do not use 17 N/C Do not use 18 N/C Do not use Table 1 6.1.4 Pin numbers and functions for the supplied 18 way backshell connector VHF antenna connector The VHF antenna connector is a female 'N' type co-axial connector. The antenna ground is galvanically isolated from the AIS AtoN system ground. The connector and mating half must be sealed with self amalgamating tape once mated. A lightning protector may be installed in line with the VHF antenna connector. The recommended lightning protector is Huber+Suhner part number 3401.17.C with gas discharge tube 9071.99.0547. It is essential that the AIS AtoN transceiver be connected to a local earth point via the earth stud on the VHF connector. The performance and reliability of the VHF antenna is essential to correct operation of the transceiver. Ensure that a high quality antenna suitable for use in harsh environmental conditions is selected. Ensure all co-axial connections are well made and watertight. The VHF antenna should be installed according to the manufacturer's instructions. The VHF antenna must be installed with at least 1 metre horizontal separation from any other VHF antenna mounted at the same level. The VHF antenna should have the following specification: ● Centre frequency 159~162MHz ● VSWR < 2.0 ● Impedance 50 Ohms ● Power handling 12.5 Watts ● Gain 3dBi or better It is recommended that high quality RG213 or RG214 co-axial cable is used to connect the VHF antenna to the transceiver. The antenna cable should be as short as possible and no more than 30 metres (100 feet) in length. 6.1.5 GNSS antenna connector The GNSS antenna connector is a female 'TNC' co-axial connector. The connector and mating half must be sealed with self amalgamating tape once mated. When installing the supplied GNSS antenna: ● Make sure the antenna has a clear view of the sky with no overhead obstructions. ● Position the antenna as far as possible from any VHF or other transmitting antennas. ● Position the antenna as high as possible on the physical aid to navigation. Page 21 Transceiver and Sensor Interface connections 6.1.6 Earth connection stud The earth connection stud is a M5 stud connected to the VHF antenna ground. This point should be connected to a common grounding point for lightning protection using the supplied crimp terminal, nut and washer. 6.2 Sensor Interface connections The function of each connector is shown in Figure 10. Link USB Sensor 2 Sensor 1 Figure 10 Sensor Interface connections 6.2.1 USB connector The USB connector is used solely to connect the Sensor Interface to a PC for configuration using the supplied USB accessory cable. 6.2.2 Sensor 1 connector The Sensor 1 connector can be used to connect sensors and systems to the Sensor Interface. Further details can be found in section 7.2. 6.2.3 Sensor 2 connector The Sensor 2 connector can be used to connect sensors and systems to the Sensor Interface. Further details can be found in section 7.2. 6.2.4 Link connector The Link connector is used solely to connect the Sensor Interface to the AIS AtoN transceiver via the supplied Link cable accessory. Page 22 Connecting external sensors and systems Connecting external sensors and systems The AIS AtoN transceiver can be interfaced to external sensors and systems for the transmission of sensor data via the AIS network. Typically meteorological and hydrographic sensors are interfaced to the transceiver so that local conditions can be shared with other AIS users. The AIS AtoN transceiver can be connected directly to a limited number of external sensors and systems, or to a more extensive number of sensors and systems via the Sensor Interface. Section 7.1 describes the interfaces available without connection to the Sensor Interface while section 7.2 describes the interfaces available when connected to a Sensor Interface. 7.1 Connecting sensors and systems to the AIS AtoN Transceiver This section describes the interfaces available when the AIS AtoN transceiver is not connected to a Sensor Interface. In this configuration only the 18 way Link connector is used to connect to external sensors and systems. The light status, light health and RACON status internal circuits are identical. Figure 11 shows the internal circuit and examples of possible external circuits. 7.1.1 Light ON/OFF interface This is an electrically isolated differential interface which monitors the ON/OFF status of the Light providing the Light used supports this functionality. Additional circuitry may be required to interface the Light status outputs to the transceiver. 7.1.2 Light health interface This is an electrically isolated differential interface which monitors the health status of the Light providing the Light used supports this functionality. Additional circuitry may be required to interface the Light status outputs to the transceiver. 7.1.3 RACON status interface This is an electrically isolated differential interface which monitors the status of the RACON providing the RACON used supports this functionality. Additional circuitry may be required to interface the RACON status outputs to the transceiver. Page 23 Connecting external sensors and systems External equipment - example 1 Field Power 15VDC Max. Output + OutputField GND External equipment - example 2 Field Power 15VDC Max. Contact 1 Sensor Interface - internal circuit for light status, light health and RACON status 1S 3S 1KΩ Contact 2 To microprocessor Field GND GND External equipment - example 3 5V GND 0 / 5V GND GND External equipment - example 4 12V 0 / 12V GND GND Figure 11 Light status/ health and RACON status interface circuits and examples circuits for external equipment 7.1.4 AtoN Status source and configuration AIS AtoN position report messages (AIS message #21) contain status bits describing the status of a connected light and RACON. The general health of the transceiver is also provided as either ‘good health’ or alarm. The transceiver can be configured to obtain status information from one of three sources: Page 24 Connecting external sensors and systems ● Directly from the transceiver interfaces described in section 7.1. ● From the Sensor Interface isolated digital inputs described in 7.2.4. ● By input of an ACE (Extended General AIS AtoN Station configuration command) sentence to the transceiver's NMEA0813 port. The ACE sentence is described in section 11.2.2. This sentence can be used to supply the status bits for transmission rather than sourcing from the hardware inputs. The source of the status information is configured using either proAtoN (see section 8). The following settings must also be configured using proAtoN: ● Light fitted / not fitted ● Racon fitted / not fitted ● Racon monitored / not monitored Note that the AIS AtoN ‘health’ bit is generated internally by the transceiver. However, if the ACE sentence is configured as the source for status information then the AIS AtoN ‘health’ bit is the combination of the internal transceiver health and the ACE sentence health bit. In this configuration if either the internal transceiver health or the external health status provided by the ACE sentence is set to ‘1’ (alarm) then the status will be transmitted as alarm. 7.1.5 NMEA0183 port The bi-directional NMEA port is available via the 18 way Link connector described in section 6.1.2. This port accepts and outputs NMEA0183/IEC61162-1 sentences for configuration of the transceiver and communication of binary message payload data (see section 7) to the transceiver for transmission in AIS messages. Whilst the transceiver is awake own position reports are also output to this port (as AIVDO messages) and in the case of a Type 3 transceiver remote vessel reports (as AIVDM messages) are also output. The electrical and interface specification for this port is as follows: ● Four wire NMEA0183 / IEC61162-1/2 port (RS422 levels) ● Baud rate 38,400baud ● Isolated receiver circuitry, non-isolated transmitter circuitry 7.2 Connecting sensors and systems to the Sensor Interface 1S 3S This section describes the interfaces available when the AIS AtoN transceiver is connected to the Sensor Interface which include: ● Two fully isolated analogue inputs ● Two non-isolated analogue inputs ● A light current sense loop ● Five isolated digital inputs ● Three non-isolated digital inputs / outputs ● A fully isolated RS422 / NMEA0183 port ● Two RS232 ports ● An SDI-12 serial bus interface (one RS232 port is unavailable if this interface is used) ● A relay drive output Connection to the above sensor interfaces is made via connectors Sensor 1 and Sensor 2 as described in section 6.2. To make a connection to Sensor 1 and Sensor 2 the supplied backshell connectors should be wired to suitable cable of the required length. Figure 12 shows the pin numbering and assembly method for the supplied backshell connector and Table 2 and Table 3 shows the corresponding pin functions. The cable should have a minimum outer diameter of 6.5mm and a maximum outer dimension of 9.5mm. It is important to select cable which meets this criteria to ensure the assembled cable and connector is waterproof. Please contact your supplier for recommendations of suitable cable. Page 25 Connecting external sensors and systems 12 16 10 13 17 14 11 15 18 Figure 12 Pin numbering for Sensor 1 and Sensor 2 connectors Pin Signal name Function and notes SENSOR_RS422_TX_B Connection B of the RS422 TX port SENSOR_RS422_RX_A Connection A of the RS422 RX port SENSOR_RS422_TX_A Connection A of the RS422 TX port SENSOR_RS422_RX_B Connection B of the RS422 RX port SENSOR_RS422_GROUND RS422 ground connection SENSOR_RS232_A_TX TX connection for the first RS232 port SENSOR_RS232_A_RX RX connection for the first RS232 port SENSOR_RS232_B_TX TX connection for the second RS232 port SENSOR_RS232_B_RX RX connection for the second RS232 port 10 SENSOR_SDI-12 SDI12 connection 11 GROUND Ground reference for SDI12, RS232 and relay connections 12 SENSOR_NON_ISO_ADC_1_+ Positive connection for non isolating ADC1 13 SENSOR_NON_ISO_ADC_1_- Negative connection for non isolating ADC1 14 SENSOR_NON_ISO_ADC_2_+ Positive connection for non isolating ADC2 15 SENSOR_NON_ISO_ADC_2_- Negative connection for non isolating ADC2 16 ISENSE+ Positive connection for the current sense loop 17 ISENSE- Negative connection for the current sense loop 18 S_RELAY_DR Relay drive output Table 2 Page 26 Pin numbers and functions for the Sensor Interface Sensor 1 connector Connecting external sensors and systems Pin Signal name Function and notes SENSOR_ISO_DI_1+ Positive connection for the isolating digital input 1 SENSOR_ISO_DI_1- Negative connection for the isolating digital input 1 SENSOR_ISO_DI_2+ Positive connection for the isolating digital input 2 SENSOR_ISO_DI_2- Negative connection for the isolating digital input 2 SENSOR_ISO_DI_3+ Positive connection for the isolating digital input 3 SENSOR_ISO_DI_3- Negative connection for the isolating digital input 3 SENSOR_ISO_DI_4+ Positive connection for the isolating digital input 4 SENSOR_ISO_DI_4- Negative connection for the isolating digital input 4 SENSOR_ISO_DI_5+ Positive connection for the isolating digital input 5 10 SENSOR_ISO_DI_5- Negative connection for the isolating digital input 5 11 SENSOR_NON_ISO_DI_1 Non isolating digital input 1 12 SENSOR_NON_ISO_DI_2 Non isolating digital input 2 13 SENSOR_NON_ISO_DI_3 Non isolating digital input 3 14 GROUND Ground for digital inputs 15 ISO_ADC1+ Positive connection for the isolating ADC 1 16 ISO_ADC1- Negative connection for the isolating ADC 1 17 ISO_ADC2+ Positive connection for the isolating ADC 2 18 ISO_ADC2- Negative connection for the isolating ADC 2 Table 3 Pin numbers and functions for the Sensor Interface Sensor 2 connector The following sections describe the hardware specification and interface for the Sensor Interface connections. The function of the Sensor Interface (in terms of translation of sensor data to AIS messages) is determined by the software configuration of the AIS AtoN (see section 8.5 for further details). The default configuration and supported sensors are described in section 9 of this document. For alternate configurations please refer to the additional documentation supplied with the product or contact your supplier. 7.2.1 Isolated analogue inputs The extended sensor interface includes two isolated analogue inputs. These inputs are available on the Sensor 2 connector described in Table 3. The electrical and measurement specification of these inputs is as follows: ● Differential input range 0 to 36V ● Impedance 620KΩ ● 16 bit resolution The voltage to be measured should be applied across the differential positive and negative inputs. 7.2.2 Non-isolated analogue inputs The extended sensor interface includes three non-isolated analogue inputs. These inputs are available via the Sensor 1 connector described in Table 2. The electrical and measurement specification for these inputs is as follows: Page 27 Connecting external sensors and systems ● Differential input range ± 35V ● Impedance 220KΩ ● 12 bit resolution The voltage to be measured should be applied across the differential positive and negative inputs. 7.2.3 Light current sense loop The extended sensor interface includes a light current sense loop. This facility is intended for health monitoring of a light on the physical aid to navigation. Connections for the light current sense loop are available via the Sensor 1 connector described in Table 2. The specification of the current sense loop is as follows: ● Maximum current 2A ● Measurement of currents up to 0.5A ● 12 bit resolution External equipment VIN+ 3V3 ISENSE+ to μC ISENSE- VIN- LAMP GND Figure 13 Light current sense loop circuit 7.2.4 Isolated digital inputs The Sensor Interface includes five isolated digital inputs. These inputs are intended for use with status outputs from external equipment such as lights, RACONs and power supply monitoring systems. Connections for the isolated digital inputs are available via the Sensor 2 connector described in Table 3. The specification for these inputs is as follows: ● Maximum input voltage ±15V ● Input impedance 1KΩ ● Sensitivity 2.5V Figure 14 shows some examples of possible interface circuits for the isolated digital inputs. Page 28 Connecting external sensors and systems External equipment - example 1 Field Power 15VDC Max. ISO_DI_n+ Output + ISO_DI_n- OutputField GND External equipment - example 2 Field Power 15VDC Max. ISO_DI_n+ Contact 1 ISO_DI_n- Sensor Interface - internal circuit 1S 3S 1KΩ Contact 2 To microprocessor ISO_DI_n+ Field GND ISO_DI_nGND External equipment - example 3 5V GND 0 / 5V ISO_DI_n+ GND ISO_DI_n- GND External equipment - example 4 12V 0 / 12V ISO_DI_n+ GND ISO_DI_n- GND Figure 14 Isolated digital input internal reference circuit and examples of external circuits Page 29 Connecting external sensors and systems 7.2.5 Non-isolated digital inputs/outputs The Sensor Interface includes three non-isolated logic level digital interfaces. When configured as inputs the signal level must not exceed 3.3VDC referenced to the transceiver signal ground. Connections for the isolated digital inputs are available via the Sensor 2 connector described in Table 3. Figure 15 shows example interface circuits for the non isolating digital inputs. External equipment - example 1 Output + DIG_IO_n 10KΩ 3.3V GND Output- External equipment - example 2 AIS AtoN Sensor Interface internal reference circuit 3V3 Contact 1 PULL-UP DIG_IO_n 10KΩ 3.3V ACTIVE HIGH 470Ω DIG_IO_n Contact 2 INPUT GND ACTIVE LOW PULL DOWN GND External equipment - example 3 5V 5KΩ 0 / 5V DIG_IO_n NOTE: Sensor DIG_IO pins are default set as floating inputs. Other configurations are possible- contact your distributor for more information. 10KΩ GND GND GND External equipment - example 4 12V 27K 0 / 12V DIG_IO_n 10K GND GND GND Figure 15 Non-isolated digital input reference circuit and examples of external circuits 7.2.6 Isolated RS422 / NMEA0183 port The Sensor Interface provides a fully isolated NMEA0183 (RS422 level) serial interface for connection of external equipment. Connections for the isolated NMEA0183 port are available at the Sensor 1 connector as described in Table 2. The port operates at 38,400 baud by default. The data types accepted are determined by the configuration of the sensor interface. Page 30 Connecting external sensors and systems 7.2.7 RS232 ports The extended sensor interface provides two non-isolated RS232 interfaces for connection of external equipment. These ports are available via the Sensor 1 connector described in Table 2. The port operates at 38,400baud by default. The data types accepted are determined by the configuration of the sensor interface. RS232 port 2 shares hardware with the SDI-12 interface described in section 7.2.8 and is not available if the SDI-12 interface enabled by configuration. 7.2.8 SDI-12 interface The extended sensor interface provides an SDI-12 for interface to external sensors supporting this bus. The SDI-12 interface is available via the Sensor 1 connector as described in Table 2. The Sensor Interface operates as an SDI-12 data recorder. The electrical interface consists of three connections: ● A serial data line ● A ground line ● A 12-volt line (used to power connected sensors) For further information on the SDI-12 interface please refer to the specification available at http://www.sdi-12.org/. Note that the 12V supply line is not provided by the sensor interface. 7.2.9 Relay drive output The extended sensor interface provides an open drain relay drive outputs that default to the normally open state. The outputs are capable of switching 100mA at 12VDC or 50mA at 24VDC; a circuit diagram of the output driver is provided in Figure 16. The relay drive output is available via the Sensor 1 connector as described in Table 2.. RELAY_DRIVE From processor 100R BSP75NTA 10K GND GND Figure 16 Relay drive output reference circuit 7.2.10 Input voltage monitor The Sensor Interface has the facility to measure the incoming power supply voltage. This can be used to provide a measurement of the charge state of a battery supply to the transceiver. The voltage measured can be included in transmitted AIS measurements if so configured. No additional connections are required in order to make use of this facility. Page 31 Configuration using proAtoN Configuration using proAtoN 1S 3S The proAtoN PC application is supplied on the CD packaged with the AIS AtoN transceiver and the Sensor Interface. The application provides features for configuration of the transceiver and confirming correct operation before deployment. The main features of the application are: ● Configuration of essential transceiver parameters such as MMSI, name and dimensions ● Configuration of reporting schedules ● Configuration of virtual and/or synthetic AtoN reporting schedules ● Configuration of other messaging features ● GNSS diagnostics ● System diagnostics and alarm display ● Configuration of the source for external equipment status information ● VDL configuration (for further information contact your distributor) ● Configuration of sensor interfaces proAtoN operates in two modes: transceiver configuration mode and sensor configuration mode. proAtoN automatically switches between transceiver configuration mode and sensor configuration mode depending on the serial port selected at the point of COM port selection as described in section 8.2. 8.1 proAtoN installation proAtoN should be installed from the CD supplied with the transceiver. The steps to complete the installation are as follows: 1. Insert the CD into your PC running Windows (XP, Vista, 7) 2. Navigate to the proAtoN folder on the CD 3. Double click the ‘setup.exe’ item to start the installation process 4. Follow on screen instructions to complete the installation Following successful installation the application can be launched from the proAtoN folder in the Windows start menu. USB device drivers for the transceiver are installed automatically during installation of proAtoN. Page 32 Configuration using proAtoN 8.2 Application layout The basic layout of the proAtoN application is provided in Figure 17. COM Port selection Read / Write configuration Configuration tabs Status bar Figure 17 proAtoN application layout 8.2.1 COM Port selection When connected via USB, the COM ports associated with the AIS AtoN transceiver and Sensor Interface will be listed in the COM port selection menu. ● To operate proAtoN in transceiver configuration mode (type 1, 1S, 3 3S) select the ‘AIS AtoN Port’ option from the drop down and click the ‘Connect’ button. ● To operate proAtoN in sensor configuration mode (type 1S and type 3S only) select the ‘AIS AtoN Sensor Port’ and click the ‘Connect’ button. 8.2.2 Read / Write configuration Clicking the left hand button will transfer current configuration information from the AIS AtoN transceiver or Sensor Interface to proAtoN. Clicking the right hand button will configure the AIS AtoN transceiver or with the information currently displayed in proAtoN. It is possible to select transfer of configuration information relating only to the currently selected tab, or to all tabs by clicking the drop down arrow to the right of each button. The default operation for each button is to read or write data relating to the selected tab only. It is highly recommended that prior to deploying the AtoN the “Send all Configuration” option is used on the write button. 8.2.3 Transceiver configuration mode tabs The configuration and status of the transceiver is displayed through a number of tabs. ● Real AtoN tab - configuration of AtoN MMSI, name, type, dimensions, position and radio parameters. ● Message schedule tab - configuration of FATDMA or RATDMA message schedules. Page 33 Configuration using proAtoN ● Virtual AtoN tab - configuration of virtual and/or synthetic AtoN transmissions. ● Status input tab - configuration of the source for AtoN status information. ● Alert messages tab - configuration of non-periodic messages (e.g., vessel proximity alert messages). ● GNSS - displays signal strength and status information for the transceiver GNSS receiver. ● Serial data - displays raw IEC61162 (NMEA0183) data output from the transceiver. ● Diagnostics - displays software version information, alarms and other key status information. 8.2.4 Sensor configuration mode tabs ● Sensor Settings - configuration of sensor combination connected to the AIS AtoN. ● ADC Settings - configuration of ADC scaling. ● Message Settings - configuration of message 6 and message 8. ● System Information - current configuration status and digital input status. ● Live Data - real time data feed from the ADC, Wavemeter and sensor DI status. 8.2.5 Synchronisation status When connected to a AIS AtoN transceiver or Sensor Interface a synchronisation status icon is displayed alongside the title of each tab. This icon indicates the current synchronisation status of the information displayed in that tab with the internal configuration of the AIS AtoN transceiver or Sensor Interface. The synchronisation status icons are shown in Figure 18. Green - Tab synchronised Red - Tab not synchronised Blue - Synchronisation in progress Tab edited (sync required) Figure 18 proAtoN tab synchronisation icons Synchronisation is achieved by either writing the configuration displayed in proAtoN to the AIS AtoN transceiver or Sensor Interface (click the write configuration button), or reading the current configuration from the transceiver for display in proAtoN (click the read configuration button). 8.2.6 Status bar The status bar displays the current connection status of the application (bottom left) and the current GNSS time (if available, bottom right). This applies to transceiver configuration mode only. 8.3 AIS AtoN transceiver configuration The following sections describe the configuration options available and their effect on the behaviour of the transceiver. Configuration of an AIS AtoN transceiver requires knowledge of the local AIS environment and may require interaction with shore infrastructure. Familiarity with the current IALA guidelines on the use of AIS Aids to Navigation (IALA A-126) is assumed. 8.3.1 Configuration of ‘Real’ AtoN parameters The following parameters associated with the ‘real’ AIS AtoN transceiver should be configured via the ‘Real AtoN’ tab: Page 34 Configuration using proAtoN ● MMSI - the MMSI number associated with the ‘real’ AtoN. Typically the MMSI number for a ‘real’ AtoN station follows the format 99MID1XXX where MID is the appropriate national MID and XXX is a number unique to this station. ● Name - the name of the AtoN station as broadcast to other AIS users. Up to 34 characters are available for the name. ● Type of AtoN - select from a list of possible types of AtoN. The types are as defined by IALA in IALA A-126. ● Type of EPFS - Select the type of EPFS (Electronic Position Fixing System) used by the transceiver. Note this selection does not affect the hardware configuration, only the contents of the ‘Type of EPFS’ field in transmitted AtoN position reports. The transceiver is equipped with a GPS module by default. Alternatively for a fixed or shore based transceiver a surveyed position type can be selected. Note that when the surveyed position is selected the surveyed position is broadcast to other AIS users and GNSS position information is ignored. ● Nominal position - Enter the nominal or charted position of the AtoN. This is the position transmitted to other AIS users for a fixed AtoN when the ‘Surveyed’ EPFS type is selected. For all other configurations this position is used to perform ‘off position’ calculations only; the actual GNSS position is broadcast to other users. ○ The application can average the current GNSS position over 5 minutes and use this value for the nominal position. Click the ‘Get GNSS position’ button to the right of the latitude and longitude fields to begin this process. ○ The position accuracy can only be entered when the type of EPFS is set to ‘Surveyed’. The accuracy should be set in accordance with the accuracy of the surveyed position. ● Off position alternate message enable - the current GNSS position is compared to the nominal position according to the algorithm defined in IALA A-126 Annex A, Example 1. The off position threshold distance is specified in metres. If the transceiver determines that it is ‘off position’ then the alternate reporting schedule for message #21 (index 2) is enabled. For example, the alternate reporting schedule could be configured to decrease the reporting interval if the AtoN has drifted off position. The off position flag in message #21 is set when off position regardless of this setting. The transceiver off position algorithm is always operational and compares the current GNSS position to the nominal position of the transceiver. It is essential that valid nominal position is entered and that a reasonable off position threshold is entered. If the default nominal is left unchanged or an incorrect position is entered then the transceiver will always be ‘off position’ resulting in the GNSS receiver being permanently enabled. This will lead to significantly increased power consumption and the ‘off position’ flag in the Aids to Navigation report will be set. ● MMSI for addressed messages - this is the destination MMSI used for all addressed message types generated by the transceiver. This is usually the MMSI of a shore station collecting status information from the transceiver. It is also possible to enable the acknowledgement of received binary messages (via message #7 or #13). ● Dimensions - the dimensions of the AtoN should be entered to the nearest metre. Guidance on the appropriate configuration of dimensions for various types of AtoN can be found in IALA A-126. ● Radio channels - Selection of alternative radio channels for AIS transmission and reception is possible, however in most cases the default channels (AIS1 and AIS2) should be used. ● Transmitter power level - The transmitter power level for the transceiver can be selected as 1W, 2W, 5W or 12.5W. The default value of 12.5W is appropriate for most scenarios. Page 35 Configuration using proAtoN 8.3.2 Message schedule configuration The layout of the message schedule tab is described in Figure 19. Add new message schedules Deactivate or remove selected schedule Current messages and schedules Figure 19 proAtoN message schedule tab layout Default messages An AIS AtoN position report is made using AIS message #21. This message occupies two AIS slots. The default configuration shown in proAtoN includes two message #21 schedule configurations. The first configuration, index 1, is the primary position reporting schedule for the transceiver. The second, index 2, is the alternate position reporting schedule selected when the ‘off position’ monitor is enabled and the AtoN is determined to be off position (see section 8.3.1). If the alternate ‘off position’ schedule is not required it can be deactivated by selecting the associated row in the message schedule table and clicking the ‘Deactivate’ button. When deactivated the alternate schedule will be greyed out. Adding additional messages to the schedule Additional binary data messages can be added to the schedule table by selecting the required message type from the drop down at the top of this tab, then clicking the ‘Add’ button. The available message types are: ● Message #8 - for broadcast of binary data to all other stations in range. The binary data may be provided by the Sensor Interface or third party equipment connected to the transceiver. See section 9 for further information. ● Message #6 - for transmission of binary data to an individual destination MMSI. The destination MMSI is set on the ‘Real AtoN’ tab. The binary data may be provided by the Sensor Interface (if present) or third party equipment connected to the transceiver. See section 9 for further information. ● Message #12 - for transmission of text messages to an individual destination MMSI. The destination MMSI is set on the ‘Real AtoN’ tab. This schedule is used for transmission of alert messages (see section 8.3.7). ● Message #14 - for broadcast of text messages to all other stations in range. This schedule is used for transmission of alert messages (see section 8.3.7). Up to four separate schedules are available for each binary message type. Each individual schedule has an index from 1 to 4 which is used to identify that schedule (for example, message #8 index 2). Access scheme selection The access scheme for each message must be selected as either FATDMA or RATDMA (see section 3.2). The selection is made by selecting the required row in the schedule table, then clicking on the current access scheme in that row. A drop down menu will then appear in that location allowing selection of the required access scheme. Page 36 Configuration using proAtoN ● FATDMA 1S 3S Configuration of an FATDMA schedule continues in section 8.3.3. ● RATDMA 3S Configuration of an RATMDA schedule continues in section 8.3.4. 8.3.3 FATDMA Schedule configuration 1S 3S Using the FATDMA (Fixed Access TDMA) access scheme the actual slot for each transmission made by the transceiver is specified. There are 2250 slots per minute (or frame) on each AIS channel. The scheduled slots must be reserved for the transceiver by an AIS base station operating in the same area using AIS message #20. Further information on FATDMA reservations and slot allocation schemes can be found in IALA A-124, Appendix 14. The parameters required for an FATDMA schedule are as follows. Channel 1 start UTC This is the hour and minute for transmission on channel 1. This specifies the AIS frame (minute) within a day in which the start slot for channel 1 resides. Channel 1 start slot This is the slot number for the first transmission on channel 1. The slot number can range from -1 (transmission disabled on this channel) to 2249. Note that each message #21 transmission occupies two slots and associated base station slot reservations must therefore reserve two slots. Channel 1 interval This is the interval in slots between transmissions on channel 1. The interval can range from 0 to 3240000 slots, which equates to an interval of one day. Typically the interval is set to 13500 slots (6 minutes) on each channel which results in an overall interval of 3 minutes. Channel 2 start UTC This is the hour and minute for transmission on channel 2. This specifies the AIS frame (minute) within a day in which the start slot for channel 2 resides. Typically the channel 2 start time is offset by 3 minutes from the start time used for channel 1. With a 6 minute reporting interval on each channel this results in a transmission every 3 minutes on alternating channels. Channel 2 start slot This is the slot number for the first transmission on channel 2. The slot number can range from -1 (transmission disabled on this channel) to 2249. Note that each message #21 transmission occupies two slots and associated base station slot reservations must therefore reserve two slots. Channel 2 interval This is the interval in slots between transmissions on channel 2. The interval can range from 0 to 3240000 slots, which equates to an interval of one day. Typically the interval is set to 13500 slots (6 minutes) on each channel which results in an overall interval of 3 minutes. Page 37 Configuration using proAtoN Example FATDMA schedule A typical transmission schedule requires that the AIS AtoN transceiver transmit AIS message #21 every three minutes on alternating channels. The transmission schedule is presented diagrammatically in Figure 20. 00:07 00:08 00:09 00:10 00:11 00:12 00:07 00:08 00:09 00:10 00:11 00:12 00:06 00:05 00:04 00:03 00:02 00:01 00:00 hh:mm Overall interval 7500 slots (3 minutes) Channel 1 00:06 00:05 00:04 00:03 00:02 00:01 00:00 hh:mm Channel 1 interval 13500 slots (6 minutes) Channel 2 Channel 2 interval 13500 slots (6 minutes) Figure 20 Example FATDMA schedule This schedule can be configured using the following values: ● Channel 1 start UTC = 00:00 (the first frame of every hour) ● Channel 1 start slot = 0 (the first slot in the frame, so slots 0 and 1 are used by the message #21 transmission) ● Channel 1 interval = 13500 slots (this equates to a 6 minute interval as there are 2250 slots per minute) ● Channel 2 start UTC = 00:03 (the third frame of every hour) ● Channel 2 start slot = 0 (the first slot in the frame, so slots 0 and 1 are used by the message #21 transmission) ● Channel 2 interval = 13500 slots (this equates to a 6 minute interval as there are 2250 slots per minute) The transceiver is now configured to report message #21 on channel 1 every 6th minute, and on channel 2 every 6th minute, but offset by three minutes from channel 1. This results in a transmission of message #21 every three minutes on alternating channels. The actual start slot selected for each channel will depend on the FATDMA allocations in the area of operation. 8.3.4 RATDMA Schedule configuration 3S Using the RATDMA (Random Access TDMA) access scheme the time for each transmission made by the transceiver is specified. The transceiver will determine the actual slots used for transmission based on internal knowledge of the AIS environment gained from the AIS receivers. The parameters required for an RATDMA schedule are as follows. Channel 1 start UTC This is the hour and minute of the frame in which transmission will occur on channel 1. The slot used within this frame will be determined by the transceiver. Channel 1 interval This is the interval in minutes between transmissions on channel 1. A typical value is 6 minutes. Page 38 Configuration using proAtoN Channel 2 start UTC This is the hour and minute of the frame in which transmission will occur on channel 2. The slot used within this frame will be determined by the transceiver. Channel 2 interval This is the interval in minutes between transmissions on channel 1. A typical value is 6 minutes. Example RATDMA schedule A typical transmission schedule requires that the AIS AtoN transceiver transmit AIS message #21 every three minutes on alternating channels. The transmission schedule is presented diagrammatically in Figure 21. 00:05 00:06 00:07 00:08 00:09 00:10 00:11 00:12 00:05 00:06 00:07 00:08 00:09 00:10 00:11 00:12 00:04 00:03 00:02 00:01 00:00 hh:mm Overall interval (3 minutes) Channel 1 00:04 00:03 00:02 00:01 00:00 hh:mm Channel 1 interval 6 minutes Channel 2 Channel 2 interval 6 minutes Figure 21 Example RATDMA schedule This schedule can be configured using the following values: ● Channel 1 start UTC = 00:00 (the first minute of every hour) ● Channel 1 interval = 6 minutes ● Channel 2 start UTC = 00:03 (the third minute of every hour) ● Channel 2 interval = 6 minutes The transceiver is now configured to report message #21 on channel 1 every 6th minute, and on channel 2 every 6th minute, but offset by three minutes from channel 1. This results in a transmission of message #21 every three minutes on alternating channels. The exact timings of the transmissions within the selected minute will vary as the transceiver selects available slots using RATDMA. Page 39 Configuration using proAtoN 8.3.5 Virtual AtoN configuration The transceiver can be configured to transmit position reports for up to five virtual or synthetic Aids to Navigation. This configuration is carried out using the Virtual AtoN(s) tab in proAtoN. Within this tab there are sub-tabs relating to each of the five virtual or synthetic AtoNs. The sub-tabs are visible at the left hand edge of the window. The layout of the virtual AtoN configuration tab is provided in Figure 22. Enable virtual AtoN and select type Virtual AtoN subtabs Virtual AtoN details Virtual AtoN schedule Figure 22 Virtual AtoN configuration tab layout The following parameters are required to configure a virtual or synthetic AtoN. Note that the ‘real’ AtoN must be properly configured in order to make use of the virtual AtoN feature. Virtual / Synthetic AtoN Each virtual AtoN required must be separately enabled by checking the ‘Enable’ checkbox. The type of virtual AtoN can then be selected. ● Virtual AtoN A virtual AtoN is transmission of message #21 for an Aid to Navigation that does not physically exist. A virtual AtoN may be used to mark a temporary hazard to navigation, e.g., a wreck. For further information on the use of virtual AtoNs please refer to IALA A-126, IALA O-143 and IALA guideline 1081. ● Synthetic AtoN A synthetic AtoN is transmission of message #21 from an AIS station located remotely from the physical Aid to Navigation. An example of use is to provide an AIS AtoN target for a buoy or mark that is not capable of supporting AIS AtoN hardware. Virtual / Synthetic AtoN Details The basic configuration of a virtual or synthetic AtoN is comparable to that required for a ‘real’ AIS AtoN. Note that the MMSI number format is different: ● A virtual AtoN MMSI has the format 99MID6XXX, where MID is the appropriate national MID and XXX is a number unique to this station. ● A synthetic AtoN MMSI has the same format as a real AtoN MMSI, e.g., 99MID1XXX, where MID is the appropriate national MID and XXX is a number unique to this station. The position of the virtual or synthetic AtoN must be configured appropriately to the position of the aid. Note that a virtual AtoN has no dimensions whereas the dimensions of a synthetic AtoN should be configured. Page 40 Configuration using proAtoN Virtual AtoN schedule The transmission schedule for a virtual or synthetic AtoN must be configured in the same way as that for the ‘real’ AtoN. The TDMA access scheme, start times and intervals must be configured in the virtual AtoN tab following the guidance in section 8.3.3 or 8.3.4 as appropriate. When an FATDMA schedule is used it is important to ensure the slot allocations used for the virtual and real AtoNs are different in every case. Also note that two consecutive slots are used for each virtual AtoN report. 8.3.6 Status input configuration tab AIS AtoN position reports (message #21) contain status information encoded as a bit sequence. The status bits contain the basic operational state of a connected light and RACON along with the overall health of the transceiver itself. Connection of a light and/or RACON is optional and requires equipment with a suitable health output. Interfacing of light and RACON status is described in sections 6.1.3, 7.1.4 and 7.2.4. The status information can be obtained from one of three sources as described in section 7.1.4. The status input configuration tab is used to set the source and other associated parameters. The layout of the status input configuration tab is provided in Figure 23. Current status display (when connected to transceiver) Set fixed status as installed Set status bit source Set status input logic Figure 23 Status input configuration tab layout Current status (message 21) This section shows the current light and RACON status determined by the transceiver. The transceiver must be connected and powered from a DC supply in order for this display to operate correctly. Light & RACON configuration This section allows the fixed parameters of the light and RACON to be configured. The check boxes should be set according to the physical configuration. For example if a light status output is connected to the transceiver then the ‘Light fitted’ check box should be checked. If a RACON is connected it is also possible to define if the RACON is monitored or not. Status bit source Select the source for the status information to match the method used to provide status information to the transceiver (this is described in section 7.1.4). Status bit logic The logical sense of the physical status bit inputs can be set here. This allows for interface of equipment with active high or active low status outputs. Page 41 Configuration using proAtoN 8.3.7 Alert messages The transceiver can be configured to transmit text messages for three different alert conditions. ● An addressed or broadcast text message can be transmitted when the transceiver detects a Built In Integrity Test (BIIT) failure. ● An addressed text message can be transmitted to an approaching vessel if the vessel comes within a configurable distance of the transceivers location. This function is only available with Type 3 variants and with full time receiver operation. ● An addressed or broadcast text message can be transmitted when the transceiver determines that it is off position (see section 8.3.1). This message is in addition to use of the alternate schedule for off position reporting (if the alternate schedule is enabled) and does not replace that function. The layout of the alert messages configuration tab is provided in Figure 24. Configure BIIT failure message action Configure vessel proximity alert action Configure additional off position alert action Configure SART Relay Mode Figure 24 Alert messages configuration tab layout BIIT failure actions This section allows configuration of the text message to be transmitted on detection of a Built In Integrity Test failure (BIIT failure). Such a failure may indicate a problem with the transceiver and it may be prudent to warn vessels not to rely on the information provided by the transceiver in this situation. Note that the health of the transceiver is always transmitted as part of the standard Aids to Navigation position report (message #21), however the status contained in that message may not be shown on all display systems. The available actions on BIIT failure are: ● No action - no message is transmitted on detection of a BIIT failure. ● Transmit message #14. A broadcast text message is transmitted on detection of a BIIT failure. The text content of the message must be defined in the ‘Message text’ box. ● Transmit message #12. An addressed text message is transmitted on detection of a BIIT failure. The destination for the addressed message is configured on the ‘Real AtoN’ tab (see section 8.3.1). In addition to configuration of the BIIT failure action a schedule for the associated message must be configured in the ‘Message schedule’ tab. ● Message #14 Index 1 must be configured if the message #14 action is selected. ● Message #12 Index 1 must be configured if the message #12 action is selected. Vessel proximity alert This section allows configuration of the text message to be transmitted on detection of vessel breaching a defined radius (or guard ring) around the transceiver. This message can be used to warn approaching vessels of potential collision with the AtoN. The addressed message is automatically sent to all vessels that breach the guard ring radius. Page 42 Configuration using proAtoN The available vessel proximity alert actions are: ● Disable message #12 - the vessel proximity alert function is disabled ● Enable message #12 - the function is enabled and the text content of the message to be transmitted must be defined in the ‘Message text’ box. The guard ring radius for the proximity alert must also be configured in the ‘Radius’ box; note that the value is set in metres. In addition to configuration of the vessel proximity alert a schedule for the associated message must be configured in the ‘Message schedule’ tab. ● Message #12 Index 2 must be configured if the message #12 action is selected. Off position alert This section allows configuration of the text message to be transmitted when the transceiver detects that it is off position. The settings for off position detection are made on the ‘Real AtoN’ tab (see section 8.3.1). The configuration of an alternative off position message #21 reporting schedule is independent of the configuration of this text alert. The available off position alert actions are: ● Disabled - no text message is transmitted when the transceiver determines that it is off position. ● Transmit message #14. A text message is broadcast when the transceiver detects that is off position. The text content of the message must be defined in the ‘Message text’ box. ● Transmit message #12. An addressed text message is transmitted on detection of an off position condition. The destination for the addressed message is configured on the ‘Real AtoN’ tab (see section 8.3.1). In addition to configuration of the off position alert a schedule for the associated message must be configured in the ‘Message schedule’ tab. ● Message #14 index 2 must be configured if the message #14 action is selected ● Message #12 index 3 must be configured if the message #12 action is selected SART Relay Mode This control enables or disables the repeating of SART (Search and Rescue Transponder) messages detected by the AIS AtoN. This functionality is only relevant to Type 3 devices as receivers are required to detect the messages. 8.4 Transceiver diagnostics The proAtoN application provides a number of features to assist with installation of an AIS AtoN and diagnosis of fault conditions. These features are available through the GNSS, Serial Data and Diagnostics tabs in proAtoN. 8.4.1 GNSS tab The GNSS tab shows the status of the GNSS receiver built into the transceiver. This provides an indication of the quality of the GNSS satellite signals being received along with the current position of the transceiver. At least four satellites with a carrier to noise ratio in excess of 40 dBHz are required for an acceptable position fix. Relocating the transceiver or connecting an external GNSS antenna can help improve the signal quality and resulting position accuracy. The internal GNSS receiver supports SBAS (Satellite Based Augmentation Service) to enable improved accuracy and integrity of GNSS position fixes. The availability of SBAS depends on the installation location of the transceiver (the WAAS SBAS service covers most of the US and the EGNOS service covers Europe). 8.4.2 Serial data tab The serial data page shows all data output from the transceiver in NMEA0183 / IEC61162-1 format. It is also possible to send NMEA0183 / IEC61162-1 commands to transceiver if required for technical support or custom configuration. A facility to record the data to a file is provided by clicking the ‘Log to File’ button. Page 43 Configuration using proAtoN Certain sentence types can be filtered out of the output window by checking the relevant sentence type in the ‘Filters’ section of this tab. 8.4.3 Diagnostics tab The Diagnostics tab provides system version and status information. This information may be required when requesting technical support for the product. AtoN Details ● The connected AIS AtoN Type is displayed as Type 1 or Type 3 ● The application and bootloader software versions for the connected AIS AtoN are displayed ● The serial number of the connected AIS AtoN is displayed Power status ● The VHF antenna VSWR (Voltage Standing Wave Ratio) as measured at the last AIS transmission is displayed. This value is for indication only. A value better than 3:1 is expected for a good antenna system. The alarm limit for antenna VSWR is set to 5:1. A perfect antenna would give a VSWR of 1:1. ● The system supply voltage is displayed in volts. The supply voltage must be between 9.6V and 32.6V for correct operation. The supply voltage alarm will activate outside of this supply voltage range. Report generation Clicking the ‘Create Diagnostics Report’ button will produce full report of the transceiver status. This report may be requested by technical support personnel. After clicking the button select a suitable file name and location for the report file before clicking save. Reported messages During operation the transceiver will output a variety of status messages relating to the current operating state. These messages are for information only and do not represent a fault condition. Message text Description / Resolution TX attempt failed (msg 6 no payload re-broadcast data) A transmission of message #6 has failed as the payload data required for this message was not provided (by either the Sensor Interface, or an external system). The likely cause is a configuration error relating to data capture. TX attempt failed (msg 8 no payload re-broadcast data) A transmission of message #8 has failed as the payload data required for this message was not provided (by either the Sensor Interface, or an external system). The likely cause is a configuration error relating to data capture. TX attempt failed (msg 12 no payload re-broadcast data) A transmission of message #12 has failed as the payload data required for this message was not provided (by either the Sensor Interface, or an external system). The likely cause is a configuration error relating to data capture. TX attempt failed (msg 14 no payload re-broadcast data) A transmission of message #14 has failed as the payload data required for this message was not provided (by either the Sensor Interface, or an external system). The likely cause is a configuration error relating to data capture. Standby blocked: Off position algorithm The transceiver can’t enter standby (low power) mode because the ‘off position’ algorithm has detected an off position condition. Moving the transceiver within the configured operating radius will resolve this. Page 44 Configuration using proAtoN Message text Description / Resolution Standby Blocked: Acquiring GPS The transceiver can’t enter standby (low power) mode because it is currently acquiring a GNSS position fix. Standby operation will resume when a fix is acquired. Standby disabled Standby mode (low power operation) is disabled by configuration. Standby Blocked: USB connected The transceiver will not enter standby (low power) mode whilst the USB interface is connected to a PC. Standby Blocked: Shell running The transceiver will not enter standby (low power) mode whilst the configuration shell is active. Standby Blocked: Receivers enabled The transceiver can’t enter standby mode if the current configuration requires that the receivers are active. Exiting standby Information only on exit of standby mode. Entering standby for xx seconds Information only on entry to standby mode. Active alarms The transceiver incorporates BIIT (Built In Integrity Test) routines which continuously monitor key operating parameters. Should an integrity test fail the failure will be indicated in the active alarms area. Alarm text Description / Resolution Tx Malfunction A transmitter malfunction has been detected - please contact your supplier. Antenna VSWR exceeds limits The VHF antenna VSWR is above the permitted limit. Check the VHF antenna, cable and connections are sound. The VSWR measured at the last transmission is displayed on the proAtoN diagnostics tab. Rx Channel 1 malfunction A receiver malfunction has been detected - please contact your supplier. Rx Channel 2 malfunction A receiver malfunction has been detected - please contact your supplier. EPFS failure No position is available from the internal GNSS receiver - please contact your supplier. DGNSS input failed No data is available from the external source of differential GNSS correction data. Please check connections, baud rate and equipment configuration. Supply voltage The transceiver power supply voltage is outside of the permitted range. The measured supply voltage is displayed on the proAtoN diagnostics tab. Low forward power The transmitter forward power is below a preset limit please contact your supplier. Synchronisation lost Timing information is not available from the internal GNSS receiver - please contact your supplier. Page 45 Configuration using proAtoN 8.5 Sensor configuration 1S 3S The sensor configuration tabs are displayed when the sensor port is selected in the COM Port selection menu. Five tabs are displayed in this mode; 'Sensor Settings', 'ADC Settings', 'Message Settings', 'System Information' and 'Live Data'. Details for each of these tabs are given in the following sections. Where necessary reference is made to the underlying command from which details of the control behaviour can be found. 8.5.1 Sensor settings This tab displays controls as appropriate to the configuration set. It is necessary to download this information from the Sensor Interface. Connect to the sensor port and use the 'Retrieve all Configuration' control to retrieve the information. The opening screen contains a message to this effect (see Figure 25). On retrieving the information the screen will change to show the controls for the sensor configuration in use (see Figure 26). Figure 25 Initial sensor settings tab Figure 26 Sensor settings tab Page 46 Configuration using proAtoN 8.5.2 ADC settings tab This tab contains controls for the light current sense and ADC scaling parameters. There are three groups of controls on this tab; 'Light Current Sense', Current Sense ADC Scaling' and 'Voltage Measurement Scaling' (see Figure 27). Figure 27 ADC settings tab Light Current Sense group Checking the 'Enable Current Sense' box will enable the controls listed below. The function of each control can be found in the corresponding command details. ● Current Sense Threshold (see 'isensethresh' in Table 6) ● Current Sense Source (see 'altisource' in Table 6) ● Light On Source (see 'lightonsource' in Table 5) Current Sense ADC Scaling These controls allow the setting of the scaling parameters for the two current sense sources. Details for these parameters can be found in section 10.2.7. The underlying commands are 'setisensescale' and 'setaltisensescale' detailed in Table 6. Switching between these two sources is controlled by the Current Sense Source control in the Light Current Sense group box above. Voltage Measurement Scaling These controls allow setting of the scaling parameters for the two voltage measurement sources. Details for these parameters can be found in section 10.2.7. The underlying commands are 'setvoltscale' and 'setaltvoltscale' detailed in Table 6. Switching between these two sources is controlled by the Voltage Measurement Source control of the Message Settings tab. Page 47 Configuration using proAtoN 8.5.3 Message settings tab The message settings tab, shown in Figure 28 contains controls related to message #6 and message #8 payloads. The control groups are based on these message types. Figure 28 Message settings tab Message #6 Configuration This group contains controls for: Message #6 type (see 'msg6ver' in Table 4) Voltage Threshold For Battery Status (see 'voltthresh' in Table 5) Voltage Measurement Source (see 'voltsource' in Table 6) Power Supply Type (see 'pwrtype' in Table 5) Message #6 Sub ID (see 'msg6subid' in Table 5) Message #6 DAC (see 'msg6dac' in Table 5) Message #6 FI (see 'msg6fi' in Table 5) Message #8 Configuration This group contains a single control for selecting the message #8 type (see 'msg8ver' in Table 4). Page 48 Configuration using proAtoN 8.5.4 System information This tab displays data from the Sensor PCA. There are three groups of data; System Information, Digital Input Status and Sensor Health. See Figure 29 below. Figure 29 System information tab System Information This section displays the Software Version, Serial Number and details of the current configuration. The underlying command is 'showvalues' (see Table 4). This section is update using the 'Retrieve All Configuration' control. Digital Input Status This section displays the current status of each of the Sensor Interface’s digital inputs. The data can be refreshed using the related 'Refresh' button. The underlying command is 'getdistates' (see Table 4). Note that this data is taken from the current state of the DI and not the stored state used in messages. Sensor Health This section displays the health of each sensor in the current option. The data can be refreshed using the related 'Refresh' button. The underlying command is 'sensorhealth' (see Table 4). Page 49 Configuration using proAtoN 8.5.5 Live data tab This tab displays the selected data. Two data types are available; ADC data and Wave Meter data (see Figure 30 below). Figure 30 Live data tab ADC Data The ADC to be used is selected with the drop down menu. The Raw and Scaled radio buttons select the type of data to be output from the selected ADC. The Start/Stop button controls the flow of data. Note that when this data flow is enabled all other commands are inaccessible. 8.6 Other features The proAtoN application provides the following additional features to support transceiver installation and upgrade. 8.6.1 Offline configuration (applies to transceiver configuration mode only) The AIS AtoN transceiver configuration including all schedule parameters, virtual AtoN configuration and other settings can be saved to a file. This feature allows a configuration file to be created without access to the transceiver hardware. The file can be loaded at a later time and synchronised with the transceiver hardware. This feature is available using the ‘Save File’ and ‘Load File’ items available on the File menu. The configuration is saved as a .pad file using a format proprietary to the proAtoN application. When the proAtoN application is launched a new blank configuration file is created. You will be prompted to save this file if changes are made without saving the file prior to closing the application, or if a ‘New file’ is created from the File menu. Page 50 Operation Operation 1S 3S Once configured and connected to a power supply and antennas the AIS AtoN transceiver will operate autonomously. Correct operation can be confirmed by checking for reception of Aids to Navigation reports (message 21) using another AIS device. 9.1 Standby operation During operation the AIS AtoN transceiver will enter a low power standby mode between scheduled transmissions. The unit will not enter standby mode under the following conditions. If entry into standby mode is blocked by one or more of these conditions the power consumption of the AIS AtoN transceiver will increase significantly. ● USB interface connected - the AIS AtoN transceiver will not enter standby mode whilst the USB interface is connected to a PC. The USB interface should be disconnected once the AIS AtoN transceiver is configured and deployed. ● GPS acquisition - the AIS AtoN transceiver will not enter standby mode for the first 12 minutes of operation with GPS position available after power is first applied. This period is used to acquire the current number of UTC leap seconds from the GPS system. This only occurs at initial power up and subsequently on four occasions during each calendar year when it is possible for the number of leap seconds to change. ● Off-position algorithm - the AIS AtoN transceiver will not enter standby mode when the off position algorithm is active and the AIS AtoN transceiver is determined to be off position. Whilst off position the GPS receiver is permanently enabled in order to monitor the position according to the algorithm provided in IALA A-126 Annex A. Should the AIS AtoN transceiver return on position standby operation will resume. ● Schedule configuration - the AIS AtoN transceiver will not enter standby mode if the configured reporting schedule prevents standby operation. The AIS AtoN transceiver will only enter standby mode when there is a minimum of 15 seconds between scheduled FATDMA transmissions or 1 minute and 5 seconds between scheduled RATDMA transmissions. ● Vessel Proximity Alert - the AIS AtoN transceiver will not enter standby mode when the vessel proximity alert message is enabled. In this scenario, the transceiver will be continually monitoring AIS messages to establish the proximity of vessels. During operation the AIS AtoN transceiver will output AITXT sentences to the NMEA0183 port 1 indicating any conditions blocking entry to standby mode. Page 51 Data messages and data sources 10 Data messages and data sources The transceiver can be configured to transmit a range of data messages in addition to the standard AIS AtoN position report. The purpose, content and means of configuring supported message types is described in the table below. Message type Description and use Content sources Addressed binary data This message is addressed to another individual AIS station, usually an AIS base station, which is configured to decode the message content. The message content is binary data in a standardised or proprietary format. The message may be used to communicate status information about the AtoN and / or meteorological and hydrographic data captured at the AtoN. The binary content for this message can be generated by the Sensor Interface, or provided by suitably configured third party equipment. See sections 10.1 and 10.2 for further information. Broadcast binary data This message is broadcast to all other AIS stations. The message content is binary data in a standardised or proprietary format. The message may be used to communicate status information about the AtoN and / or meteorological and hydrographic data captured at the AtoN. The binary content for this message can be generated by the Sensor Interface, or provided by suitably configured third party equipment. See sections 10.1 and 10.2 for further information. 12 Addressed safety related message This message is addressed to another individual AIS station and contains safety related text. The text can warn of a failure of the AtoN equipment, alert an approaching vessel to danger of collision with the AtoN or indicate that the AtoN is operating off position See section 8.3.7 for further information. 14 Broadcast safety related message This message is broadcast to all other AIS stations and contains safety related text. The text can warn of a failure of the AtoN equipment or indicate that it is operating off position See section 8.3.7 for further information. ID Configuration of the AIS AtoN for capture of data for messages #6 and #8 is described in the following sections. The options available for data capture depend on the transceiver variant. 10.1 Configurations without the Sensor Interface The data payload for binary messages #6 or #8 must be provided by external equipment interfaced to the AIS AtoN transceiver using the NMEA0183 port 1 available at the Link connector on the AIS AtoN transceiver as described in section 7.1.5. The payload data for the message is requested by the transceiver using a proprietary MCR sentence and provided by the external equipment using the MPR sentence defined in section 11.2.9. 10.2 Configurations with the Sensor Interface 1S 3S The Sensor Interface supports the construction of data payloads for the following messages: Page 52 Data messages and data sources ● Message #6 ○ UK GLA AtoN monitoring message DAC 235, FI 10 UK (default) ○ Zeni Lite Buoy Co. AtoN monitoring message DAC 000, FI 00 (optionally configured with required DAC and FI) ● Message #8 IMO Metrological and Hydrological data ○ DAC 001, FI 31 (default) ○ DAC 001, FI 11 (optionally configured for use with legacy systems) 10.2.1 AIS AtoN transceiver configuration In order to transmit the supported binary messages the transceiver must be configured as described below. For message #6: ● The AIS AtoN transceiver must be configured with a schedule for message #6 index 1. ● The schedule can be either FATDMA or RATDMA. The recommended interval for this message is 12 minutes (27000 slots). Configure the AIS AtoN transceiver with a schedule for message #6 index 1 using proAtoN following the guidance in section 7.3.2. ● The destination MMSI for addressed messages must also be configured as described in section 7.3.1. This should be the MMSI of a shore station that will receive and display the monitoring message. ● Note that each message #6 occupies one slot. For message #8: ● The AIS AtoN transceiver must be configured with a schedule for message #8 index 1. ● The schedule can be either FATDMA or RATDMA. The recommended interval for this message is 12 minutes (27000 slots). Configure the transceiver with a schedule for message #8 index 1 using proAtoN following the guidance in section 7.3.2. ● Note that each message #8 FI 31 occupies two slots. 10.2.2 Configuration of the Sensor Interface 1S 3S The extended sensor interface is configured using a range of simple shell commands or via the proAtoN application as detailed in section 8. Configuration via shell commands are detailed in this section. Commands related to specific external devices are detailed in the documents for those devices. 10.2.3 Accessing the Sensor Interface shell ● Connect to the Sensor Interface using a terminal emulator (TeraTerm for example) running on a PC. The PC COM port for the Sensor Interface can be found from the Device Manager or Serial Connection drop down menu of proAtoN, if connected. The port’s friendly name is “AIS AtoN Sensor Port”. ● The following terminal configuration is required. ○ Baud rate:38400 ○ Data: 8 bit ○ Parity: None ○ Stop: 1 bit ○ Flow Control:None ○ New line Termination Characters: Receive:, Transmit: ● Once connected, the shell can be entered using the +++ command. This command will cause the shell prompt ‘>’ to appear. Page 53 Data messages and data sources 10.2.4 General Sensor Interface configuration commands Table 4 details the general commands used to configure the Sensor Interface. Command Parameter Description option Int: option Select either Zeni Lite configuration option 0,1, 2, 3 or 4. Defaulted to option 1. Valid option parameter values 0 to 4. msg6ver int: version Selects the version of message #6 to build. 1 = GLA version (Default) 2 = Zeni Lite version msg8ver int: version Selects the version of message #8 to build. 1 = Circ.236 version, FI 11 2 = Circ.289 version, FI 31(Default) showvalues none Displays the current values for all optional configuration parameters. sensorhealth none Displays the health status of external devices for the current configuration option. getdistates none Displays the current state of the digital inputs. Table 4 General Extended Sensor Interface Configuration Commands 10.2.5 Zeni Lite Message #6 configuration commands The Zeni Lite message #6 has a range of configurable parameters. The related commands are detailed in Table 5 below. Command Parameter Description msg6dac int: decimal DAC value Sets the DAC value to be used in the Zeni Lite version of message #6. Range: 0 (default) to 1023. msg6fi int: decimal FI value Sets the FI value to be used in the Zeni Lite version of message #6. Range: 0 (default) to 63 msg6subid int: decimal Sub-id value Sets the Sub-application ID value to be used in the Zeni Lite version of message #6. Range: 0 to 65535. Default = 1. Page 54 Data messages and data sources Command Parameter Description pwrtype int: power supply type Sets the power type value to be used in the Zeni Lite version of message #6. 1 = DC (Default), 0 = AC voltthresh int: decimal threshold value Sets the battery voltage threshold at which the good health flag is set. Range: 0 to 360 (in 0.1volt steps). Default = 100. (Value is only used when pwrtype is 1, DC.) lightonsource int source Selects the source to use for light on bit. 0 = (Default) Current sense (as set by altisource) 1 = ISO DI Table 5 Zeni Lite Message #6 Configuration commands 10.2.6 ADC configuration commands Two possible ADC sources are used for voltage and current values. The source is selected and the scaling details can be entered using the commands detailed in Table 6. Note that installers are responsible for designing and installing the necessary external interface circuitry to make use of the alternate data sources and for setting the scaling values to match the input to output ranges and optimise the output accuracy. Command Parameter Description voltsource int: source Sets the source for voltage data message #6 1 = internal voltage ADC 2 = external isolated ADC 1 setvoltscale int dividend int divisor int kfactor int offset User accessible command to set the scaling for the Internal voltage ADC values See section 10.2.7 for details of the scaling method. setaltvoltscale int dividend int divisor int kfactor int offset User accessible command to set the scaling for the ISO ADC 1 values See section 10.2.7 for details of the scaling method. enableisense int: on/off Enables the current sense functionality. This is disabled by default for power and processing efficiency, 1=on, 0=off. altisource Int: on/off Selects the source for current sense values. 0 = internal ISENSE loop (default) 1 = ADC 2 Page 55 Data messages and data sources Command Parameter Description isensethresh int: decimal threshold value Sets the threshold (in mA) at which the current OK flag is set / value reported in message #6. Default 100mA as defined for the GLA message #6. setisensescale int dividend int divisor int kfactor int offset User accessible command to set the scaling for the ISENSE ADC values. See section 10.2.7 for details of the scaling method. setaltisensescale int dividend int divisor int kfactor int offset User accessible command to set the scaling for the ISO ADC 1 ADC values. See section 10.2.7 for details of the scaling method. Table 6 ADC configuration commands 10.2.7 ADC Scaling The raw values read from isolated ADC 1 and 2 can be scaled to suit the input and output ranges and to optimise the accuracy of the reported value. There are a range of factors that influence the accuracy of the scaled value and installations may need to be optimised on a case-by-case basis. The formula used to scale values is: Scaled_value = (((Raw_value - offset) * dividend) /divisor) + kfactor Where: ● offset = the adjustment for raw ADC values that are not zero when the input voltage is zero (a situation that can be caused by some connection circuits). ● dividend = the output range ● divisor = the input range (resolution) ● kfactor = zero The isolated ADCs (as described in section 6.2.1) have 16 bit resolution. The non-isolated ADCs, used for internal voltage and ISENSE measurements, have 12 bit resolution. Installers will need to establish the required scaling values theoretically depending on the use case, input them using the relevant shell commands described in Table 6 and adjust the values experimentally to optimise the result. Additional sensor shell commands, getadccont and getadccontscaled can be used to evaluate the results. getadccont is particularly useful for testing the raw output for the ADCs when zero input voltage is applied. This value can be used as the offset. For reference, and to enable resetting the values, the default values for the ADCs are: ● Isolated ADC 1 and ADC 2 ○ offset = 0, dividend = 1, divisor = 42, kfactor = 0 ● Internal ISENSE non-isolated ADC8 ○ offset = 12, dividend = 5000, divisor = 4095, kfactor = 0 ● Internal supply voltage ADC ○ offset = 0, dividend = 180 divisor = 823, kfactor = 0 Page 56 Data messages and data sources 10.2.8 Message #6 Data Mapping Table 7 and Table 8 show the mapping of data sources to the message #6 fields. Message #6 DAC 235, FI 10 data field Data Source Notes Analogue voltage (internal) Supply voltage to the transceiver No additional connections are required for this measurement Analogue voltage (external 1) Sensor Interface isolated analogue input 1 See section 7.2. Note that the default scaling values for this ADC are set for this message. Analogue voltage (external 2) Sensor Interface isolated analogue input 2 See section 7.2. Note that the default scaling values for this ADC are set for this message. Status bits (internal, 5 bits) The light and RACON status bits. These values will also be used in message #21 when the sensor is used as the status bit source. See section 8.3.6 for information on configuration of status source. Status bits (external, 8 bits) Bit 0 - Isolated digital input 1 Bit 1 - Isolated digital input 2 Bit 2 - Isolated digital input 3 Bit 3 - Isolated digital input 4 Bit 4 - Isolated digital input 5 Bit 5 - Set to 1 if light current sense >=100mA, else set to 0 Bit 6 - non isolated digital input 1 Bit 7 - non isolated digital input 2 See section 7.2. The light current sense bit can use the internal ISENSE loop (default) or ISO ADC 2 Off position status Transceiver off position algorithm Transceiver off position algorithm Table 7 Data mapping for message #6 DAC 235, FI 10 Message #6 Zeni Lite Format Data Source Notes DAC User Input See section 10.2.5 FI User Input See section 10.2.5 Sub-application ID User Input See section 10.2.5 Voltage Data Internal Voltage or External Isolated ADC 1 See sections 10.2.6 and 10.2.7 Current Data Internal ISENSE loop or External Isolated ADC 2 See sections 10.2.6 and 10.2.7 Page 57 Data messages and data sources Message #6 Zeni Lite Format Data Source Notes Power Supply Type User Input See section 10.2.5 Light Status Isolated DI 1 or ISENSE ADC 2 Battery Status Voltage Data value compared with user input threshold. Only functions if power supply type is DC Off-position Status Transceiver off position algorithm Transceiver off position algorithm Table 8 Data mapping for message #6 Zeni Lite format 10.2.9 External device support The unit currently supports the following external devices which can be configured in number of combinations (“options”) and the data used to populate message #8 Meteorological and Hydrological data. Two formats of this message are supported; DAC 001, FI 31 and DAC 001, FI 11. ● Airmar PB200 / 150WX Weather Station ● Impress S12C Water Pressure and Temperature gauge ● RM Young Wind Monitor ● JFE Advantech Co. Current Meter AEM-RS ● Vaisala Weather Transmitter WXT520 ● SeaLite light serial interface ● RM Young weather station ● Nortek AS Aquadopp Profiler ● Gill Metpak Weather Station ● Valeport TideMaster tide gauge Separate guides are available for each device detailing the connection and configuration arrangements. Only certain arrangements of sensors are possible due to the limitations of the Sensor Interface as shown in Table 9. By default the Sensor Interface is configured to interface to the Airmar weather station via either the RS422 or RS232 A port and the Impress water meter via the RS232 B port. Please contact your supplier for details of how to configure the Sensor Interface to operate with other devices. The Sensor Interface can also be adapted to support almost any equipment that might be encountered in an AtoN application. If your application requires interface to equipment other than that listed here please contact your supplier to discuss your requirements. Page 58 Data messages and data sources RS422 RS 232 A Airmar PB200 / 150WX* RM Young Wind Meter Advantech Current Meter Vaisala Weather Station Aquadopp Current Profiler RM Young Wind Meter Aquadopp Current Profiler Vaisala Weather Station Advantech Current Meter SeaLite Light serial interface RM Young weather station MetPak Weather Station Table 9 Valeport Tide Gauge Sensor Configuration Options * this device can be connected via RS422 or RS232 ** this device is connected via SDI-12 (which disables RS232 B) Note: The Impress S12C Water Pressure and Temperature gauge is connected via the SDI-12 interface. Page 59 Manual configuration 11 Manual configuration 1S 3S The AIS AtoN transceiver and Sensor Interface can be configured using standardised NMEA0183 (IEC61162-1/2) sentences developed for configuration of AIS Aids to Navigation transceivers. 11.1 Basic Type 1 AIS AtoN configuration (FATDMA operation) The following information is the minimum required configuration for a Type 1 AIS AtoN reporting message #21 only. ● The AIS AtoN station must be configured with the 'real' AtoN MMSI using the AID command. ● The AIS AtoN station must be configured with an Name, charted position, operating radio channels and dimensions using the ACF and ACE commands. ● The AIS AtoN should be configured to broadcast message 21 using the AAR command. Note that the slots selected for the AIS AtoN transmissions in FATDMA mode must be reserved by a base station operating in the area in which the AIS AtoN will be deployed. 11.2 NMEA0183 / IEC61162 configuration sentences The following section documents the standardised NMEA0183/IEC61162 sentences used for AIS AtoN configuration and control. Please refer to IEC61162-1 (Edition 4) for complete details of the configuration sentence structure. The configuration sentence formats described in this section are used to both configure the device and as the response format from the device when queried for current status. The query command format is as follows: $--AIQ,ccc*hh Sentence formatter of data being requested (e.g.,AAR) For example the query command $ECAIQ,AAR*21 requests the transceiver output an AAR sentence containing the currently configured broadcast rates for the AIS AtoN station. Configuration sentences are communicated using the transceiver USB interface. 11.2.1 AAR - Configure broadcast rates for AtoN station This sentence assigns the schedule of slots that will be used to broadcast Message 21 and other allowed AIS AtoN Station messages. It provides the start slot and interval between the slots used for consecutive transmissions for the message. The AIS AtoN Station should apply the information provided by this sentence to autonomously and continuously transmit the messages until revised by a new AAR sentence. The AIS AtoN Station, upon receipt of an AAR Query for this information, will generate sentences for configured messages providing the current broadcast schedule. New AAR assignments will override existing AAR assignments. $--AAR,xxxxxxxxx,xx,xx,xx,xx,xxxx,x.x,x,xx,xx,xxxx,x.x,a*hh Sentence status flag (see note 7) Slot interval channel 2 (see note 6) Start slot channel 2 (see note 5) UTC minute for channel 2 UTC hour for channel 2 FATMA or RATDMA setup (see note 4) Slot interval channel 1 (see note 6) Start slot channel 2 (see note 5) UTC minute for channel 1 UTC hour for channel 1 Message ID index (see notes 3 & 8) Message ID (see note 2 & 8) MMSI (see notes 1 & 8) Page 60 Manual configuration Note 1 The MMSI is defined in the AID sentence. This field contains the linkage between the MMSI definition (AID), Message 21 configuration (ACF, and ACE) and scheduling (AAR) of Message 21 transmissions. Note 2 Message ID is the message identification of the message being scheduled. When Message ID is 0 this indicates that the slots being defined will be used for chaining messages. These slots are not reserved on the VDL via a Message 20 until the competent authority requires their use and will reserve the slots at that time for the proper duration. These slots can be used for chaining or for MPR single transmission. Note 3 Message ID Index is used when there are multiple versions of a Message ID. This index value should start at 1. Note 4 Used to select whether the AAR is configuring an FATDMA schedule or RATDMA/CSTDMA schedule (0 indicates FATDMA, 1 indicates RATDMA) Note 5 For all messages which need to be transmitted in FATDMA mode, starting slot ranging from −1 to 2249 should be used. A value of –1 discontinues broadcasts of the message when the AAR sentence is sent to the AtoN Station, and indicates that no message has been broadcast if the AAR sentence is received from the AtoN Station. A null field indicates no change to the current start slot setting when sent to the AtoN Station, and indicates that the start slot has not been set, i.e. is unavailable, when the AAR sentence is received from the AtoN Station. For an RATDMA transmission schedule, this field will be Null. Note 6 For all messages which need to be transmitted, in FATDMA mode slot Interval ranging from 0 to (24*60*2250;once per day) and in RATDMA/CSTDMA mode, time interval ranges from 0 to (24*60*60) s. A null field indicates no change to the current slot interval setting when sent to the AtoN Station, and indicates that the slot interval has not been set, i.e. is unavailable, when the AAR sentence is received from the AtoN Station. Note 7 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response “C” = sentence is a configuration command to change settings. Note 8 The MMSI/Message ID/Message ID index are used to reference a table of messages loaded using MPR, ACF/ACE; this sentence defines the broadcast schedule for each message. Each message in this table is referenced by the combination of MMSI, Message ID, and Message ID index. 11.2.2 ACE - Extended general AtoN Station configuration This sentence and the ACF sentence are used to configure the AIS AtoN Station parameters when it is initially installed, and later in order to make changes to the way it operates. This sentence supports system administration of the AIS AtoN Station operation. $--ACE,xxxxxxxxx,hh,xxxx,x,x,x,c--c,xxxxxxxxxx,a,*hh Sentence status flag (see note 8) Dimensions (see note 7) Name of AtoN (see note 6) Synch lost behaviour (see note 5) Off position behaviour (see note 4) Acknowledgment procedure (see note 3) Off position threshold (see note 2) AtoN status bits (see note 1) MMSI Note 1 AtoN status bits, indication of the AtoN status, default “00hex”: for a Virtual AtoN, this field should be 00hex. The three most significant bits represent the page ID. Note 2 The off-position indicator is generated when this threshold is exceeded (distance in metres). Note 3 Determines the behaviour of AtoN for message acknowledgement (Message 7 and 13): 0 will provide acknowledgement as defined by manufacturer, 1 will not provide acknowledgement. Note 4 Off-position behaviour: 0 – maintain current transmission schedule, 1 – use new reporting interval configured by AAR using message ID index. Note 5 Synch lost behaviour: 0 – silent, 1 – continue as before. Note 6 Name of the AtoN: maximum 34 characters. Note 7 Reference point of reported position; should be given as dimension (aaabbbccdd) of the buoy. (See IALA A-126) Page 61 Manual configuration Note 8 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. 11.2.3 ACF - General AtoN Station configuration This sentence and the ACE sentence are used to configure Message 21 content for the AtoN Station and all of the Synthetic/Virtual AtoN Stations associated with the AtoN Station. $--ACF,xxxxxxxxx,x,llll.llll,a,yyyyy.yyyy,a,x,xxxx,xxxx,xxxx,xxxx,x,xx,x,a*hh Sentence status flag (see note 7) Virtual flag (see note 6) Type of AtoN Power level (see note 5) Tx channel 2 (see note 4) Tx channel 1 (see note 4) Rx channel 2 (see note 4) Rx channel 1 (see note 4) Position accuracy (see note 3) Longitude – E/W (see note 2) Latitude – N/S (see note 2) Type of EPFS (see note 1) MMSI (see notes 1 & 8) Note 1 Identifies the source of the position, see ITU-R M.1371 Message 21 parameter (type of electronic position fixing device). Note 2 Nominal or charted position. Note 3 0 = low > 10 m, 1 = high < 10 m; differential mode of DGNSS. VHF channel number, see ITU-R M.1084. Note 4 VHF channel number, see ITU-R M.1084. Note 5 0 = default manufacturer power level (nominally 12,5 W), 1 to 9 as defined by the manufacturer. Note 6 Virtual AtoN flag 0 = Real AtoN at indicated position (default), 1 = Virtual AtoN, 2 = Synthetic AtoN (flag remains 0 in message 21 but the repeat indicator must be > than 0). Note 7 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. Note 8 The MMSI/Message ID/Message ID Index are used to reference a table of messages loaded using MPR/ACF/ACE. This sentence defines the broadcast schedule for each message. Each message in this table is referenced by the combination of MMSI, Message ID and Message ID Index. 11.2.4 AFB - Forced broadcast This sentence is used to force a transmission of the indicated VDL message, this message is already known to the AIS AtoN Station through AAR/MPR or ACE/ACF/AAR configuration commands. $--AFB,xxxxxxxxx,xx,xx,xx,xx,xxxx,x,a*hh Sentence status flag (see note 2) Channel 1/2 Start slot (see note 1) UTC minute for start slot UTC hour for start slot Message ID index Message ID MMSI Note 1 Page 62 If the start slot is null, the AtoN Station will use RATDMA for transmission. Manual configuration Note 2 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response “C” = sentence is a configuration command to change settings. 11.2.5 AFC - AtoN function ID capability This sentence is used to provide the capability information of implemented function ID by the EUT. This sentence is initiated with a QAFC and the response is the AFC. $--AFC,xxxxxxxxx, hhhhhhhhhhhhhhhh*hh Status of implementation fro each function ID (see note 1) MMSI Note 1 Each bit corresponds to the function ID number and the bit value “0” indicates the function ID number is not supported and “1” indicates supported. The most significant bit is function ID “0”. 11.2.6 AID - MMSI configuration This sentence is used to load, for an AtoN Station, its Real, Virtual and chained MMSI(s). The MMSI from the factory shall be as defined by the manufacturer. Each AtoN Station will maintain a table of its MMSI(s) and the messages associated with these MMSI(s). This sentence is also user to load the destination MMSI for addressed messages. To set the destination MMSI using this sentence set the ‘Virtual, Real or Chained’ field to 0. Note that only one destination MMSI can be configured $--AID,xxxxxxxxx,x,xxxxxxxxx,a,a*hh Sentence status flag (see note 5) Virtual, Real or Chained (see note 4) MMSI (see note 3) Create or delete MMSI (see note 2) Current MMSI of the AtoN station (see note 1) Note 1 The MMSI of the station being addressed. The initial factory setting should be defined by the manufacturer, for example 000000000. Note 2 The indicator to define if the MMSI is being created/changed (1) or deleted (0). If own station MMSI is deleted it should revert to the factory setting. If a Virtual AtoN is deleted, then all associated messages for that Virtual AtoN are also deleted. Note 3 The current MMSI to be created/changed/or deleted. Note 4 Real AtoN, chained, or Virtual AtoN – Real is own station, chained indicates an MMSI that this station is responsible for relaying messages to and from, a Virtual AtoN indicates an MMSI that this station is responsible for generating at least a Message 21. “R” – Real AtoN; “V” = Virtual/Synthetic AtoN; “P” = parent AtoN in the chain; “C” = child AtoN in the chain. “0” = Set destination MMSI for addressed messages. Note 5 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. Page 63 Manual configuration 11.2.7 ARW -Configure the receiver turn-on times This sentence defines the operational period for the receivers. When chaining the duration of receiver wake up time must be sufficient to allow correct operation of a chain. $--ARW,xxxxxxxxx,x,xx,xx,xxx,xxxx,a*hh Sentence status flag (see note 4) Duration of receiver wake up (see note 3) Receiver wake up interval (see note 2) UTC minute UTC hour Receiver on or interval (see note 1) MMSI of the AtoN station Note 1 0 = use interval setting as defined below; 1 = turn receiver on. Note 2 Interval between receiver activation: 1 – 60 min if UTC hour is set to 24; 1 – 256 h if UTC hour is 0- 23; (Note: 168 h is once per week). Note 3 Maximum awake time (1 440 min is 24 h). Note 4 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. 11.2.8 MCR - Configure proprietary AtoN control The payload of this sentence will be proprietary information used to control the AtoN Station. $--MCR,xxxxxxxxx,c--c,a*hh Sentence status flag (see note) Payload up to the 80 character length MMSI Note 1 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. 11.2.9 MPR - Message configuration of payload re-broadcast This message will be used to command the AIS AtoN Station to rebroadcast the payload or to define a new message for autonomous, continuous transmission. The AAR configuration with message ID/message ID index for a specific MPR must precede the MPR to identify it as autonomous continuous transmission. If it is a single transmission, this payload will be broadcast using the slots reserved by the AAR with message ID/message ID Index = 0, or it will use the next available slot. $--MPR,xxxxxxxxx,xx,xx,x,xx,xx,c--c,a*hh Sentence status flag (see note 3) Payload Sequence number Total number of sentences Broadcast behaviour (see note 2) Message ID index Message ID (see note 1) MMSI Note 1 The following messages are supported by ITU-R M.1371 Messages 6, 8, 12, 14, 25, 26 and other appropriate messages. Note 2 0 = use AAR definition, 1 = use next available slot. Page 64 Manual configuration Note 3 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. 11.2.10TSP - Transmit slot prohibit This sentence is used to prohibit an AIS station from transmitting in the specified slots. The AIS Station receiving this sentence should not use the next occurrence of the indicated slots. This sentence is designed to be used to protect interrogation responses from interference from Base Station transmissions and for use with AtoN Stations. For an AtoN Station the Unique Identifier is the AtoN Station Real MMSI. $--TSP,c--c,x.x,x,HHMMSS.SS,x.x,x.x,x.x,x.x,x.x,x.x,x.x,a,a*hh Sentence status flag (see note 9) Prohibit duration control (see note 8) Consecutive time slots in third block (see note 7) Slot offset of third block of consecutive time slots (see note 6) Consecutive time slots in second block (see note 7) Slot offset of second block of consecutive time slots (see note 6) Consecutive time slots in first block (see note 7) Slot offset of first block of consecutive time slots (see note 6) Reference slot (see note 5) UTC hour, minute and second of requested blocking of slot use (see note 4) Channel selection (see note 3) Sequential identifier (see note 2) MMSI (see note 1) Note 1 The MMSI is defined in the AID sentence and is the MMSI of the Real AtoN. Note 2 The sequential identifier provides an identification number from 0 to 99 that is sequentially assigned and is incremented for each new TSP sentence. The count resets to 0 after 99 is used. This sequential identifier is used to identify the Base Station’s response to this TSP-sentence when it replies with a slot prohibit status report (see TSR-sentence). Note 3 1 = Channel 1, 2 = Channel 2. Note 4 This is for record keeping. It contains the hour, minute, and second of this request. Note 5 This is the slot from which the following slot offsets are referenced. Note 6 Slot offset of the first slot in the block of slots to be blocked from use by the Base Station. 0 indicates no prohibited slots. Note 7 Total number of consecutive slots to be blocked from use by the Base Station. The first slot of the block is also part of the count. Therefore, the minimum value is 1. 1-5 = number of prohibited slots. Note 8 This field is used to control the prohibited slots. This field should not be null. C = immediately restore for use all slots currently prohibited from use, E = the slot prohibition expires for the slots identified in this sentence after their next occurrence, P = prohibit the use of slots identified in this sentence. Slots are restored for use using “C” or “R”, R = restore the use of slots identified in this sentence. Note 9 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. 11.2.11VER - Version This sentence is used to provide identification and version information about a talker device. This sentence is produced either as a reply to a query sentence. The contents of the data fields, except for the unique identifier, should be manufactured into the talker device. The unique identifier is the AtoN Station Real MMSI. In order to meet the 79-character requirement, a "multi-sentence message" may be needed to convey all the data fields. Page 65 Manual configuration $--VER,x,x,x,aa,c--c,c--c,c--c,c--c,c--c,c--c*hh Hardware revision (see note 3) Software revision (see note 3) Model code (see note 3 Manufacturer serial number (see notes 3 &4) Unique identifier (see note 2) Vendor ID (see note 5) Device type (see note 1) Sequential message identifier (see note 7) Sentence number, 1 to 9 (see note 6) Total number of sentences needed, 1 to 9 (see note 6) Note 1 The device type is used to identify the manufactured purpose of the device. Choice of the device type identifier is based upon the designed purpose of the device. It is set into the equipment based upon the primary design of the device and remains constant even if the user defined talker identifier feature is used (see BCF-sentence). For AIS device types, use one of the following talker identifier mnemonics: AB: independent AIS Base Station; AD: dependent AIS Base Station; AI: mobile class A or B (see IEC 61993-2 and IEC 62287-1) AIS station; AL: limited AIS Base Station; AN: AIS aids to navigation station; AR: AIS receiving station; AS: AIS physical shore station; AT: AIS transmitting station; AX: AIS simplex repeater station; DU: duplex repeater station; UP: microprocessor controller; U#: (0 ≤ # ≤ 9) user configured talker identifier. Note 2 The unique identifier is used for system level identification of a station, 15 alphanumeric character maximum. For an AtoN Station, this is the Real AtoN MMSI number. Note 3 The data field length may be 32 characters maximum. The length of 32 characters is chosen in order to be consistent with similar data field lengths in the IEC 61162 standard. When large character lengths are used and the 80 character sentence limit would be exceeded for a single sentence, a series of successive VER sentences should be used to avoid the problem (using data fields 1 and 2 to ensure the multiple VER sentences are properly associated by the listener). Null fields can be used for data fields contained in other sentences of the series. Every VER sentence shall contain the unique identifier. Note 4 The manufacturer’s serial number for the unit. Note, this “internal” manufacturer’s serial number may or may not match the physical serial number of the device. Note 5 Vendor identification. Note 6 Depending on the number of characters in each data field, it may be necessary to use a “multi-sentence message” to convey a “VER reply.” The first data field specifies the total number of sentences needed, minimum value 1. The second data field identifies the sentence number, minimum value 1. Note 7 The third data field provides the sequential message identifier. The sequential message identifier provides a message identification number from 0 to 9 that is sequentially assigned and is incremented for each new multi-sentence message. The count resets to 0 after 9 is used. For a VER reply requiring multiple sentences, each sentence of the message contains the same sequential message identification number. It is used to identify the sentences containing portions of the same VER reply. This allows for the possibility that other sentences might be interleaved with the VER reply that, taken collectively, contain a single VER reply. This data field may be a null field for VER replies that fit into one sentence. 11.3 Proprietary configuration sentences The following section documents the proprietary NMEA0183/IEC61162 sentences used for AIS AtoN configuration and control. These sentence relate mainly to configuration of data capture and integration with external equipment. Page 66 Manual configuration 11.3.1 Status Bit Source The MCR SBS command is used to set the source for the AtoN status bits which are transmitted in AIS AtoN position reports (message #21). Refer to sections 6.1.3 and 7.1.4 for further information on the available interfaces for status information. $--MCR,xxxxxxxxx,SBS,x,a*hh Sentence status flag (see note 2) Status bit source (see note 1) MMSI Note 1 Status bit source is either: 0 = ACE sentence provides status bits 1 = Transceiver basic IO connections provide status bits 2 = Sensor Interface provides status bits (applies only to variants including the Sensor Interface) Note 2 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. 11.3.2 Status Bit Source Query This command issued to query the transceiver for the current Status Bit Source configuration. The response will be in the format described in 11.3.1. $--MCR,xxxxxxxxx,Q,SBS,a*hh Sentence status flag (see note 1) MMSI Note 1 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. 11.3.3 Light / RACON configuration The MCR LRC command is used to configure the fixed status of a connected Light and / or RACON. This affects the setting of the related status bits transmitted in message #21. $--MCR,xxxxxxxxx,LRC,x,x,x,a*hh Sentence status flag (see note 4) RACON monitored (see note 3) RACON fitted (see note 2) Lamp fitted (see note 1) MMSI Note 1 Set the light fitted status, 1 = light fitted, 0 = light not fitted Note 2 Set the RACON fitted status, 1 = RACON fitted, 0 = RACON not fitted Note 3 Set the RACON monitored status, 1 = RACON monitored, 0 = RACON not monitored Note 4 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. Page 67 Manual configuration 11.3.4 Light / RACON configuration query This command issued to query the transceiver for the current Light / RACON configuration. The response will be in the format described in 11.3.3. $--MCR,xxxxxxxxx,Q,LRC,a*hh Sentence status flag (see note 1) MMSI Note 1 This field is used to indicate a sentence that is a status report of current settings or a configuration command changing settings. This field should not be null. “R’ = sentence is a query response, “C” = sentence is a configuration command to change settings. 11.3.5 General MCR query $----Q,MCR*hh This query command will return all the MCR commands as used for direct transceiver configuration. A general query for MCR using $--Q,MCR will also return ACQ (Acquisition Configuration) information for all messages. This is used as part of the configuration of an AIS AtoN transceiver connected to a Sensor Interface; the information within the ACQ details the acquisition time the Sensor Interface needs from the AIS AtoN transceiver before a transmission is going to take place, thus allowing the Sensor Interface sufficient time to collect and average data as required for a transmission. When the AIS AtoN transceiver is not connected to a Sensor Interface the ACQ data is not required but will still get displayed when queried. Page 68 Technical specification 12 Technical specification 12.1 Applicable equipment standards IEC62320-2 Maritime navigation and radiocommunication equipment and systems – Edition 1.0, 2008 Automatic identification system (AIS) – Part 2: AIS AtoN Stations – Operational and performance requirements, methods of testing and required test results ITU-R M.1371-4 April 2010 Technical characteristics for an automatic identification system using time-division multiple access in the VHF maritime mobile band IEC61162-1 Maritime navigation and radiocommunication equipment and systems – Digital Edition 4.0, 2010 interfaces – Part 1: Single talker and multiple listeners IEC61162-2 Maritime navigation and radiocommunication equipment and systems – Edition 1.0, 1998 Digital interfaces – Part 2: Single talker and multiple listeners, high-speed transmission IEC61108-1 Edition 1.0, 2002 Global Navigation Satellite Systems (GNSS) –Part 1: Global positioning system (GPS) - Receiver equipment - Performance standards, methods of testing and required test results IEC60945 Maritime navigation and radiocommunication equipment and systems – 2002 General requirements – Methods of testing and required test results SDI-12 A Serial-Digital Interface Standard for Microprocessor-Based Sensors Version 1.3, 2009 12.2 AIS AtoN transceiver specification 12.2.1 Physical Transceiver dimensions 172mm (width) x 128mm (depth) x 53mm (height) excluding connectors Transceiver weight 365g excluding cables and accessories. 12.2.2 Environmental Operating temperature range -25°C to +55°C Water ingress rating IPx6 and IPx7 Page 69 Technical specification 12.2.3 Electrical Nominal supply voltage 12 to 24VDC. Peak current at 12V is 3A. Peak current at 24V is 1.5A. Absolute min and 10 to 32VDC. max supply voltages Power consumption at 12VDC supply Type 1 (FATDMA) with message #21 transmission every 3 minutes, 0.1 Ah/day Type 3 (RATDMA) with message #21 transmission every 3 minutes, 1.0 Ah/day Type 1 with Sensor Interface (FATDMA) with message #21 transmission every 3 minutes, + option 0 operation every 5 minutes, 0.75Ah/day Type 3 with Sensor Interface (RATDMA) with message #21 transmission every 3 minutes, + option 0 operation every 5 minutes, 1.7Ah/day 12.2.4 GNSS GNSS type Global Positioning System (GPS) Receiver channels 50 Time to first fix (cold start) <36 seconds Frequency L1 band, 1575.42MHz Accuracy 2.5m CEP / 5.0m SEP without differential correction 2.0m CEP / 3.0m SEP with SBAS or RTCM DGPS correction Antenna requirement Active external antenna (3.3V bias) with gain >20dB 12.2.5 TDMA transmitter Frequency range 156.025MHz to 162.025MHz Channel bandwidth 25kHz Output power Configurable 1W, 2W, 5W or 12.5W Data transmission rate 9600 bits/s Modulation mode GMSK 12.2.6 TDMA receivers Number of receivers 2 Frequency range 156.025MHz to 162.025MHz Channel bandwidth 25kHz Sensitivity <-107dBm for 20% PER Modulation mode GMSK Adjacent channel sensitivity 70dB Spurious response rejection 70dB Page 70 Technical specification 12.2.7 Supported AIS messages (transmission) Message #6 Binary data for addressed communication Message #8 Binary data for broadcast communication Message #12 Safety related data for addressed communication Message #14 Safety related data for broadcast communication Message #21 Position and status report for aids-to-navigation Message #25 Short unscheduled binary data transmission (Broadcast or addressed) Message #26 Scheduled binary data transmission (Broadcast or addressed) 12.2.8 Connector types Power/USB connector Selwyn Electronics 23305525-02-RC Link Selwyn Electronics 23018525-02-RC VHF antenna Female N-type coaxial connector GPS antenna Female TNC type coaxial connector Ground stud M5 threaded stud 12.3 Sensor Interface specification 1S 3S 12.3.1 Physical S e n s o r I n t e r f a c e 172mm (width) x 128mm (depth) x 53mm (height) excluding connectors dimensions S e n s o r I n t e r f a c e 300g excluding cables and accessories. weight 12.3.2 Environmental Operating temperature range -25°C to +55°C Water ingress rating IPx6 and IPx7 12.3.3 Interfaces USB USB interface for configuration and diagnostics RS232 Two RS232 level interfaces for connection of external equipment* NMEA0183 / IEC61162 / RS422 One fully optically isolated RS422 level interface for connection of external equipment SDI-12 One SDI-12 compliant interface for connection of external sensors supporting the SDI-12 protocol* Non-isolated digital I/O 3 x non-isolated logic level I/O signals (3.3V logic levels) Isolated digital inputs 5 x optically isolated digital inputs, sensitivity 2.5V, max input voltage ±15V Page 71 Technical specification Isolated analogue inputs Two isolated analogue inputs. Non-isolated analogue inputs Two non-isolated analogue inputs. Current sense loop Light current sense loop, max 5A. Measurement of currents up to 0.5A with 12bit resolution. Relay drive One relay driver output, max load 200mA at 60VDC. Range ±13.75V, 16 bit resolution. Range ±37.2V, 12 bit resolution. *Only one RS232 port is available when the SDI-12 interface is enabled. Page 72 Technical specification 12.4 Drawings and dimensions 53 mm 128 mm 114 mm 126 mm 172 mm Figure 31 AIS AtoN Transceiver dimensions 53 mm 128 mm 114 mm 126 mm 172 mm Figure 32 Sensor Interface dimensions Page 73 Firmware upgrade procedure 13 Firmware upgrade procedure 1S 3S The AIS AtoN transceiver and Sensor Interface firmware can be updated should a new version be made available. The firmware update is transferred using the USB interface. The pre-requisites for carrying out a firmware update are: ● AIS AtoN Transceiver connected to a PC via the USB interface. ● If a Sensor Interface is being updated it should be connected to the PC via the USB interface. It is not necessary to connect the Sensor Interface to the AIS AtoN Transceiver via the Link cable. ● The PC operating system must be Windows XP, Vista or 7. ● Prior installation of the USB driver (This is automatically installed when proAtoN is installed). ● A software update file for the AIS AtoN transceiver and/or Sensor Interface (available from your supplier). ● The 'vxsend' PC software update utility (available from your supplier). To update the firmware carry out the following steps: 1. Install and run the 'vxsend' utility (screenshot shown in Figure 33). 2. Click the Browse (…) button for the Image file, then navigate to and select the appropriate update file. 3. Select the COM port assigned to the AIS AtoN port or AIS AtoN Sensor port, depending on which element is being updated. 4. Click 'Start' and wait for the update to complete. Notification is given when the update has completed successfully. 5. Power cycle the transceiver and confirm normal operation before it is deployed. Figure 33 vxsend utility screenshot Page 74
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