AMEC A750 Installation And Operation Manual
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AMEC A750 Installation And Operation Manual

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A750
AIS Class A / Inland AIS
INSTALLATION and OPERATION MANUAL

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  • Page 1 A750 AIS Class A / Inland AIS INSTALLATION and OPERATION MANUAL...
  • Page 3 Copyright The entire contents of this instruction manual, including any future updates, revisions, and modifications, shall remain the property of AMEC at all times. Unauthorized copies or reproduction of this manual, either in part or whole, in any form of print and electronic media, is prohibited. The contents herein can only be used for the intended purpose of this manual.
  • Page 4 Standard-magnetic-compass: 0.30 m Steering-magnetic-compass: 0.30 m RF Exposure Safe Distance A750 has been tested and meets applicable limits for radio frequency (RF) exposure. This device generates and radiates RF electromagnetic energy and requires a Maximum Permissible Exposure of 1.9 m from the antenna during operation.
  • Page 5 Declaration of Conformity Hereby, Alltek Marine Electronics Corp. (AMEC) declares that this A750 is in compliance with the essential requirements and other relevant provisions of Directive 2014/90/EU. A copy of the Declaration of Conformity can be obtained on-line from under “Download”:...

  • Page 6: Table Of Contents

    ABLE EQUIREMENTS VHF A .................15 NTENNA NSTALLATION GNSS (GPS) A ..............16 NTENNA NSTALLATION A750 ..................16 OUNTING Mounting A750 Transponder Main Unit ........17 Mounting Junction Box ...............19 A750 E ) ........20 XTERNAL ONNECTORS RANSPONDER ) ............21 XTERNAL ONNECTORS UNCTION ..............24 ONNECTING...
  • Page 7 Long Range Inbox ................39 Send SRM ..................40 AIS S ....................44 ETTINGS Own Ship ..................44 Voyage ..................48 CPA/TCPA ..................51 Operation Mode .................52 Alert Settings ................52 Long Range Settings ..............53 Long Range Broadcast ..............53 VSWR Settings ................54 Transceiver ..................54 Extended Tow Dimension............55 ..................56 AVIGATION TATUS...
  • Page 8 ....................86 ISPLAY .......................86 EYPAD ................87 ONNECTION NTERFACE ..................88 NVIRONMENTAL ....................88 HYSICAL ) .................88 ILOT OPTIONAL MECHANICAL DIMENSIONS ................89 A750 T ..............89 RANSPONDER .....................91 UNCTION ..................91 XTENSION ABLE ) .............91 OUNTING EMPLATE NOT TO SCALE VHF A ....................92 NTENNA GNSS (GPS) A GA-25 ..............92...
  • Page 9 A750 D (IEC 61162-2) ............97 NTERFACE IEC 61162 D ............99 UPPORTED ENTENCES ..............99 NTERPRETATION OF NPUT ENTENCES ............114 NTERPRETATION OF UTPUT ENTENCES APPENDIX B: A750 NMEA 2000 PGN INFORMATION ..........121 APPENDIX C: INSTALLATION AND MAINTENANCE RECORD ........123...

  • Page 10: What Is Ais

    WHAT IS AIS? The Automatic Identification System (AIS) is a Very High Frequency (VHF) radio broadcasting system that transfers packets of data over the VHF data link (VDL) and enables AIS equipped vessels and shore-based stations to exchange identification information and navigational data. Ships with AIS transponders continually transmit their ID, position, course, speed and other data to all nearby ships and shore stations.

  • Page 11: System Overview

    SOLAS vessels, commercial ships, professional vessels, and non- SOLAS applications. The A750 can be connected to the ship’s sensors as required by the IALA guidelines through junction box. The device can also interface external navigation and presentation systems that support IEC 61162-1 related sentences. It is also capable for connection to Long Range system like Inmarsat C.

  • Page 12: Interconnection Diagram

    Interconnection Diagram...

  • Page 13: Installation

    INSTALLATION Equipment in the Box The standard supply in the package includes the following items. Please contact your local representative if any item is missing.

  • Page 14: Installation Procedures

    7) Power on the main transponder unit 8) Complete configuration setting 9) Perform system functional test RF Cable Requirements The following RF cables are recommended to install the A750.  VHF Antenna Cable Type: 5D-FB or equivalent Connector: PL-259 (Male) ...

  • Page 15: Vhf Antenna Installation

    VHF Antenna Installation The quality and positioning of the antenna are the most important factors dictating AIS performance. It is recommended that a VHF antenna with omni directional vertical polarization be specifically tuned for AIS operation band. Since the range of VHF signals is largely decided by line of sight distance, the VHF antenna should be placed as high as possible and at least 5 meters away from any constructions made of conductive materials.

  • Page 16: Gnss (Gps) Antenna Installation

    GPS ANTENNA LOCATION Enter the GPS antenna location data in “SHIP SETTING” after the installation. GPS Antenna location Figure 2 Mounting A750 Use the following guidelines to check the installation location for your AIS transponder:  The AIS transponder should be mounted in a location that is accessible and readable to user at all time.

  • Page 17: Mounting A750 Transponder Main Unit

    Mounting A750 Transponder Main Unit Mounting A750 Main Unit Figure 3 Panel Mounting (1) 1. Line up the mounting template on control panel to sketch an outline for the cutting area. 2. Using a jigsaw carefully cut along the sketched cutting area.
  • Page 18 Panel Mounting (1) Figure 4 Panel Mounting (2) Panel Mounting (2) Figure 5...

  • Page 19: Mounting Junction Box

    Mounting Junction Box Mounting Junction Box (1) Mounting Junction Box (1) Figure 6 Mounting Junction Box (2) Mounting Junction Box (2) Figure 7...

  • Page 20: A750 External Connectors (Transponder Main Unit)

    A750 External Connectors (Transponder Main Unit) Frame Ground A750 Rear View Figure 8 NAME DESCRIPTION TYPE POWER Power input connector Round type, 3 pins ETHERNET 10Base-T/ 100Base-TX Round type, 8 pins GPS antenna connector TNC (female) VHF antenna connector SO-239 (female)

  • Page 21: External Connectors (Junction Box)

    External Connectors (Junction Box) To Transponder Main DISP Blue Sign DGPS Sensors 1~3 Termination switches Jumper for Frame NMEA2000 Ground shield and ground Alarm Pilot plug Frame Ground Strip NMEA 2000 Cable Glands External Connectors (Junction Box) Figure 9...
  • Page 22 CONNECTOR LABEL DESCRIPTION FUNCTION USAGE NAME SEN1_IN Connect to data sources Sensor 1 ground such as heading, gyro, or Sensor 1 other type of sensors. SEN1_IN A Sensor 1 input A SEN1_IN B Sensor 1 input B SEN2_IN Connect to data sources Sensor 2 ground such as heading, gyro, or Sensor 2...
  • Page 23 LR_ OUT A LR output A LR_ OUT B LR output B DISP_IN Connect to the data DISP input ground output of an external display system such as DISP_IN A DISP input A ECDIS. DISP_IN B DISP input B Display DISP_OUT DISP output...

  • Page 24: Connecting Extension Cable

    Connecting Extension Cable Use the 37-pin- extension cable (1.8M) provided in the package connect A750 to the junction box. Note: The side of extension cable with a core should be connected close to the A750 main unit. Connecting A750 with Junction Box...

  • Page 25: Pilot Plug Connection

    Pilot Plug Connection The A750 has an integrated pilot plug on the front panel with the IMO standard AMP connector. Open the waterproof lid to connect the PPU (Personal Pilot Unit). When needed, an optional pilot plug is available for purchase to be connected through the junction box.

  • Page 26: Operation

    OPERATION Front Panel Overview LCD Display Keypad Light Sensor Beeper SD Card Pilot Plug Keypad Description: Item Icon Name Function(s) when pressed  Radar View: Select chart orientation and type of target to show FUNCTION  Target List: Select sort method and what type of target to show ...

  • Page 27: Display Modes

    Display Modes For quick access, users can rotate display modes by simply pressing the button. Display Mode Screen Shot Purpose Displays all targets on Radar View Radar View (Refer to section 4.2.1 Radar View) Shows all received ship data AIS Target List (Refer to section 4.7.2 AIS Targets) Shows all dangerous...

  • Page 28: Radar View

    Radar View Target Information Own ship Information Radar View displays own ship and target ships’ statuses, and their correlations. It is a proportional chart scale showing the current ratio displayed. The distance between the inner and outer circles (1 grid) is the number displayed on the scale at left bottom.

  • Page 29: Target Symbol Description

    Target Symbol Description Symbols for each AIS target displayed on the Radar View are described as below: Own Ship GPS Reception: No GPS / Color: White Without GPS reception, own ship needs to be located manually. AIS Target Color: Green Ship equipped with AIS system in the surrounding sea will appear on the Radar View as an AIS target.

  • Page 30: Status Bar

    Status Bar The Status Bar constantly indicates own ship position, GPS status, SRM, ALR (alert state), and Date (YYYY/MM/DD) & Time. It will indicate IL (Inland) and/or B (Blue Sign) when the system is running Inland mode. Status Bar Inbox SRM：Unread incoming SRM LR Inbox：UnACK long-range interrogation Alert State：active –...

  • Page 31: Transmission And Reception Bar

    Transmission and Reception Bar The Transmission & Reception Bar, at bottom of Radar View, constantly displays real time status of AIS transmission and reception, and ship orientation mode. Item Name Function Number No transmissions & receptions: No flash Indicators Reception of AIS message: Flash green color Transmission of AIS message: Flash orange color...

  • Page 32: Keyboard

    Keyboard Keyboard will pop up when getting into AIS Settings, Send SRM, etc. pages. The following two keyboards are used when entering text and the right one is only for entering numbers. Upon keyboard showing up on screen, user can use physical arrow keys on device front panel to traverse and select character for editing text.

  • Page 33: Menu Tree Overview

    Menu Tree Overview Press to enter main MENU. There are 5 menu choices, and additional 2 menu choices for Inland mode. Each menu holds related sub-menu as depicted below.

  • Page 34: Menu Item Brief Description

    Menu Item Brief Description Messages SRM Inbox Log of safety related messages (SRM) received SRM Outbox Log of safety related messages (SRM) sent Log of received inquiry messages from long-range LR INBOX interrogation Send SRM Send SRM AIS Settings Own Ship Your vessel setting (password required, default is 000000) VOYAGE Navigation setting...
  • Page 35 GNSS Customize GNSS settings I/O Port Settings I/O port settings Password Setting Password change (default password: 000000) Firmware Upgrade Firmware upgrade Ethernet Setting Ethernet setting Diagnostics Keypad Test Button key test Panel Test LCD panel test Power On/Off Log Device activated log Firmware Version Firmware version System Diagnostics...

  • Page 36: Messages

    Messages When a SRM (Safety Related Messages) from other AIS equipped vessels is received, the status bar will display , the new message icon. SRM Inbox You can read received SRM under Inbox. Use to traverse the message list and highlight your choice. Read the message content by pressing...

  • Page 37: Srm Outbox

    When pressing , system will show 3 options. You can choose to reply the highlighted message or delete it or delete all messages in SRM Inbox. Press confirm your choice. SRM Outbox You can read all sent SRM under Outbox. Use to traverse the message list and highlight your choice.
  • Page 38 When pressing , system will show 3 options. You can choose to reply the highlighted message or delete it or delete all messages in SRM Inbox. Press confirm your choice.

  • Page 39: Long Range Inbox

    Long Range Inbox When the transponder is connected to a long range communication system via the long range communication port then long range interrogations may be received. These are requests for information from a distant base station beyond normal AIS operation range.

  • Page 40: Send Srm

    Send SRM This submenu allows the users to compose a Safety Related Message (SRM). Maximum length for the message is 85 characters. Message Type gives you the option to send the broadcast message or the addressed message. If the user chooses to send the addressed message, the system will show MMSI below the Message Type.
  • Page 42 After entering the MMSI number, choose the Channel. It gives you the option to send message through channel A, B or Both A&B. By No Preference, which is the default option, the system will select the channel automatically. Then, compose the message.
  • Page 43 To send the message, press the send button on the bottom of the view and the system will ask whether to send the message. Select YES to send and return to Messages submenu, NO to cancel and stay at this view. To leave this page, press and the system will ask whether to leave this view.

  • Page 44: Ais Settings

    AIS Settings This menu list provides access to settings that are required during installation of the transponder. There are a total of 9 submenus. Own Ship This section is password protected and can only be saved using the password. The following information about the vessel should be correctly set up by installation prior to operation.

  • Page 48: Voyage

    Voyage In this submenu the following navigational information can be configured: Destination - Ship’s next destination port (limited to 20 characters).  ETA Date - Estimated date of arrival at destination (using UTC time)  ETA Time - Estimated time of arrival at destination (using UTC time) ...

  • Page 51: Cpa/Tcpa

    CPA/TCPA In this submenu the closest point of approach (CPA) and time to CPA (TCPA) can be set. The vessels with insufficient CPA and TCPA will be displayed in the dangerous list and radar view with red color.  CPA - in nautical miles ...

  • Page 52: Operation Mode

    You can configure the transponder to operate in SOLAS or INLAND mode. Each mode has some specific submenu and menu options. Displaying the SART Test on the A750 screen can be enabled or disabled by configuration setting (ON/OFF) as well.

  • Page 53: Long Range Settings

    Long Range Settings This section is password protected and can only be saved using the password. This option provides user choices to auto-response remote interrogation and settings of the response information. You can either set Mode to either Auto or Manual. The setting for the rest of information is either Provide or Not Provide.

  • Page 54: Vswr Settings

    VSWR Settings The VSWR setting function allows the fine-adjustment of VSWR threshold according to the cable length and VHF antenna characteristics. Transceiver This section is password protected and can only be accessed using the password. The submenu allows the users to switch on or off the transmission and enable to switch the transmission power between 12.5W, as “normal”, and 1W.

  • Page 55: Extended Tow Dimension

    Extended Tow Dimension This option provides users to setting extended dimension values used by towing vessels. Under the following two conditions, this option will appear in the Menu. 1. AIS operate mode is INLAND mode or 2. Navigational status is 12 in SOLAS mode.

  • Page 56: Navigation Status

    Navigation Status Own Ship This option displays the full information on your ship, including both dynamic and static data. Use direction keys to change between dynamic and static information.  Static data and Dynamic data...

  • Page 57: Target List

     Inland Vessel Information The following information is only available under inland mode. Target List This option displays all received AIS information of other vessels including dynamic and static information. Use direction keys to select AIS target and then press go through dynamic and static information of the selected vessel.
  • Page 58 Use direction keys to continue reading the dynamic and static information of the selected vessel. Additional inland information is available under inland mode.

  • Page 59: Region List

     Sorting vessels In the list, press will open the pop-up window and user can sort the list according to vessels’ MMSI, direction (BRG), or distance (RNG). Also user can choose what kinds of ship type whether should be displayed in the target list. In the screenshot of the Target List, one subtitle has different color between others indicates the current sorting method.
  • Page 60  Editing or Adding region content You can add or modify the region area setting by pressing at the region list page. Use direction keys to select the field to edit, then press to enter the value.

  • Page 61: Gnss Status

    GNSS Status In this submenu the following GNSS information is displayed:  GNSS Status - show device’s GNSS data  GNSS Constellation - GNSS source location distribution  Ship Location -  Satellite Signal to Noise Ratio - GNSS source signal magnitude...

  • Page 63: Sensor Status

    Internal SOG / External SOG / Invalid Heading Status Valid / Invalid ROT Status Valid / Other ROT / Invalid Note 1: When AIS not connected with internal GPS, UTC got lost and time unsynchronized, then the A750 will continue operation using indirect or semaphore synchronization.

  • Page 64: Dangerous Target List

    Alert List A750 features SART/MOB alarm that can appear any time during operation. When SART/MOB message is received, the icon will appear in the status bar with beeping sounds twice from the buzzer.
  • Page 65 The transponder performs a function self-check continuously. If a self-check fails an alarm will occur. The Appendix shows all possible alarm scenarios. Table – BAM alert instance Alert ID Alert text Additional information Prio Escal BIIT ID 3108 Locating Check AIS targets device 3062 General...
  • Page 66 Missing Not transmitting SOG Missing Not transmitting Heading Heading Missing Not transmitting Rate of Turn 3013 Doubtful Int/Ext GNSS position GNSS mismatch Doubtful Difference with COG heading exceeds limit 3019 Wrong Check NavStatus NavStatus setting 3009 Lost MKD Cannot display safety related messages Note 1, Alert priority (Prio): W (Warning)、C (Caution)

  • Page 67: Alert History

    Alert History This submenu lists all recorded alarm and its time of occurrence.

  • Page 68: System Configuration

    System Configuration System configuration provides access to user configurable preferences for A750. All user settings are stored within the transponder and will be maintained if the power supply is switched off. After the setting is done, press SAVE button in the view and the system will ask whether the changes should be saved.

  • Page 69: Gnss Customize

    GNSS Customize This submenu allows the user to change the supplied voltage of the GNSS antenna between 3.3V and 5V and choose the GNSS system. It also enable to switch the operating altitude.

  • Page 70: I/O Port Settings

    I/O Port Settings This option provides an overview of baud rates and checksum on all ports. Password Setting This submenu enables users to change user password. Certain important information stored within the transponder can only be changed with the password. Password is required for the access of the following chapters: Own ship - contains information about MMSI, vessel name, IMO, call sign and dimension.

  • Page 71: Firmware Upgrade

    Firmware Upgrade This option provides users to upgrade the transponder version.

  • Page 72: Ethernet Setting

    172.16.0.0 ~ 172.31.255.255 (172.16/12 prefix) 192.168.0.0 ~ 192.168.255.255 (192.168/16 prefix) SFI of AIS transceiver  SFI Range for AIS is AI0000 ~ AI9999. If SFI is AI9999(default), A750 will not send data to Ethernet. Additional input multicast group  This setting is used for additional input groups.
  • Page 73 Table – Input transmission groups with applicable sentences Multicast Port Typical Typical sentences Message group address talker ID type NAVD 239.192.0.4 60004 GA, GP, GN, DTM, GBS, GNS, RMC, LC, IN, VBW, VTG, GGA, GLL HDT, THS, NAVD 239.192.0.4 60004 EC, EI, IN ABM, ACA, AIR, BBM, SSD, VSD...

  • Page 74: Diagnostics

    Diagnostics This submenu provides users to check system statuses. There are a total of 7 check options. Keypad Test This option provides keyboard testing. Pressing button during testing, a corresponding button on the screen will response. After all buttons are tested, a message will indicate.

  • Page 75: Panel Test

    Panel Test In the submenu users can test the brightness of the screen. to switch the white cube between different sizes. Use to test different stages of brightness. To exit the function, press Power On/Off Log This option provides activation and silent mode history. (any event less than 15 minutes would not be registered in the history)

  • Page 76: Firmware Version

    Firmware Version Provide model name, transponder firmware, display firmware, etc. System Diagnostics This option provides users to simply check the transponder condition. Press system will reset the time and count value.

  • Page 77: Debug Messages

    Debug Messages Communication Test Communication between A750 and other Class A device can be tested. The procedure starts by transmitting Message 10 to an addressed Class A MMSI. The addressed MMSI, once received Message 10, will return Message 11. The test is then complete when the transponder successfully receives the Message 11.

  • Page 79: Ethernet Error Logging

    Ethernet Error Logging This option provides users to check the counts of errors detected in processing datagrams containing IEC 61162-1 sentences from Ethernet.. TAG checksum error;  TAG syntax error (line length, use of delimiters, invalid characters);  TAG framing error (incorrect start or termination of TAG block); ...

  • Page 80: Inland Messages

    Inland Messages POB Outbox The submenu displays log of sent Number of person on board (RFM55/IFM16) messages. The IMO version sends the total number of persons on board as a binary message with international IFM16. The Inland (IWW) version sends a message with number of crew, personnel and passengers as a binary message with inland branch RFM55.

  • Page 81: Create Pob Message

    Create POB Message In this submenu users can compose number of person on board (RFM55/IFM16) messages. Number of person onboard can be configured in Inland Setting 0. When “Broadcast SRM” is selected, just omit the Destination MMSI. The Data Type provides the option either to send the data in RFM55 or IFM16.

  • Page 82: Inland Settings

    Inland Settings Vessel Data Setting Inland related vessel data can be set in this submenu:  ERI Ship Type - ERI classification code.  ENI - European Number of Identification or European Vessel Identification Number  Blue cones - The number of blue cones or blue flag status for the cargo (1, 2 or 3 blue cones, or blue flag).

  • Page 83: Number Of Person

    Number of Person This submenu provides Number of Person (RFM55) setting: The number of crew (0 to 254 or unknown), passengers (0 to 8190 or unknown) and other shipboard personnel (0 to 254 or unknown). Blue Sign Setting Blue Sign information helps you recognize the approaching vessels in your inland waterway area.

  • Page 84: Report Rate Setting

    Report Rate Setting Set A750’s report rate. Selectable report rates are Auto/ 30 SEC./ 15 SEC./ 10 SEC. etc. Inland Own Ship...

  • Page 85: Product Specifications

    PRODUCT SPECIFICATIONS Applicable Standards IEC 61993-2 Ed.3.0, 2018 IMO Resolution A.694(17) IEC 61108-1 Ed.2.0, 2003 IMO Resolution MSC.74(69) Annex 3 IEC 60945 Ed.4.0, 2002 incl. Corr. IMO Resolution MSC.191(79) 1, 2008 IEC 61162-1 Ed.5.0, 2016 IMO Resolution MSC.302(87) IEC 61162-2 Ed.1.0, 1998 ITU-R M.1371-5 (Class A), 2014 IEC 61162-450 Ed.2.0, 2018 IEC 62288 Ed.3.0, 2021...

  • Page 86: Gnss Receiver (Internal)

    Sensitivity < -107 dBm @ BER < 10 ≧ 70 dB for signal @ -104 dBm; BER ≦ 1 % Spurious Response Rejection ≧ 84 dB for signal @ -104 dBm; BER ≦ 1 % Blocking GNSS Receiver (Internal) 72-channel; Receiver type GPS, GLONASS, BeiDou, Galileo, SBAS: WASS, EGNOS, MSAS, GAGAN...

  • Page 87: Connection Interface

    Connection Interface A750 Main Unit Front Panel: Mini type B USB interface SD Card Slot MicroSD type Pilot Plug Std. Sex 206486-2 A750 Main Unit Rear Panel: Power Connector Round type, 3 pins GPS Antenna Connector TNC (Female) VHF Antenna Connector SO-239 (Female) Compliance with IEEE 802.3u,...

  • Page 88: Environmental

    Environmental Operating Conditions IEC 60945 “protected” category Operating Temperature -25°C ~ 55°C Operating Humidity 95% RH at 40°C Waterproof IP54 Physical Width 262 mm (10.32 inch) Height 135 mm (5.32 inch) Depth (include connectors) 197 mm (7.76 inch) Weight (main unit) 1.25 kg Pilot Plug (optional) Cable length...

  • Page 89: Mechanical Dimensions

    MECHANICAL DIMENSIONS A750 Transponder Main Unit Front (size: mm) Side (size: mm)
  • Page 90 Back (size: mm) Bottom (size: mm)

  • Page 91: Junction Box

    Junction Box 165 mm Extension Cable Mounting Template (not to scale)

  • Page 92: Vhf Antenna

    VHF Antenna GNSS (GPS) Antenna GA-25 Pilot Plug (optional) 60 mm 80 mm 103.92 mm...

  • Page 93: Troubleshooting

    TROUBLESHOOTING Use the following guide to perform simple troubleshooting in case the transponder does not function as it is expected. Due to the complexity of the operation environment of marine electronics, it is recommended to minimize all possible interference sources before proceeding with the troubleshooting by ...

  • Page 94: Troubleshooting With Alarm Messages

    Troubleshooting with alarm messages The A750 is monitoring itself constantly for failures or other important parameters with the built-in integrity test (BIIT). In case an abnormal operation is detected in one or more of the following conditions, an alert will be triggered and displayed on the screen, and the transponder will react as described in the following table.
  • Page 95 This alarm is triggered when the transponder lost UTC operation using direct synchronization or cannot synchronize from the indirect or internal GPS receiver. semaphore synchronization AIS: MKD connection lost Continue This alarm is active if the communication between the operation control unit and the display in the transponder does not work.

  • Page 96: Appendix A: Technical Information - Data Interface

    Appendix A: Technical Information - Data Interface AIS Interface Overview Figure A1 AIS Interface Overview...

  • Page 97: A750 Data Interface (Iec 61162-2)

    A750 Data Interface (IEC 61162-2) The A750 Class A AIS Transponder provides 2 types of IEC 61162-2 data interfaces for user applications. The first interface type includes 3 input-only sensor data ports and the second interface type includes 4 bidirectional input/output ports. Data port for each interface type will be described in the following section.
  • Page 98 Bidirectional Data Ports The schematic of bidirectional data port is shown in Figure A2. The schematics includes an isolated full duplex RS-485 transceiver IC which is used as the main component to handle both data input and output from external data source. The transceiver IC is isolated from external input.

  • Page 99: Supported Iec 61162 Data Sentences

    Supported IEC 61162 Data Sentences Data Port Input Sentences Output Sentences Sensor 1 DTM, GBS, GGA, GLL, GNS, Sensor 2 GSA, GSV, HDT, RMC, ROT, Sensor 3 THS, VBW, VHW, VTG DGPS ABK, ACA, ACS, ALC, ALF, ALR, ARC, LR1, LR2, LR3, LRF, ABM, ACA, ACN, ACK, AIQ, NAK, TXT, VDM, VDO,VER External Display...
  • Page 100 message ITU-R M.1371 message ID s—s Encapsulated data Number of fill-bits ACA – AIS Channel Assignment Message An AIS device can receive regional channel management information. ACA,x,llll.ll,a,yyyyy.yy,a,llll.ll,a,yyyyy.yy,a,x,xxxx,x,xxxx,x,x,x,a,x,hhmmss.ss*hh< CR><LF> Field No. Format Description Remark Sequence Number llll.ll,a Region northeast corner latitude – N/S yyyyy.yy,a Region northeast corner longitude –...
  • Page 101 ACK – Acknowledge Alarm This sentence is used to acknowledge an alarm condition reported by a device. $--ACK,xxx*hh<CR><LF> Field No. Format Description Remark Unique alarm number (identifier) at alarm source AIQ - Query Sentence This sentence is used to inquire AIS sentence information. $--AIQ,c—c*hh<CR><LF>...
  • Page 102 BBM – AIS Broadcast Binary Message This sentence supports generation of ITU-R M.1371 binary messages 8, 14, 25, and 26. This provides the application with a means to broadcast data, as defined by the application only. !--BBM,x,x,x,x,x.x,s—s,x*hh<CR><LF> Field No. Format Description Remark Total number of sentences needed to transfer...
  • Page 103 EPV – Command or Report Equipment Property Value $--EPV,a,cc,c--c,x.x,c--c*hh<CR><LF> Field No. Format Description Remark Sentence status flag Destination equipment type c--c Unique identifier Property identifier c--c Value of property to be set GBS – GNSS Satellite Fault Detection This sentence is used to support receiver autonomous integrity monitoring (RAIM). $--GBS, hhmmss.ss, x.x, x.x, x.x, xx, x.x, x.x, x.x *hh <CR><LF>...
  • Page 104 GGA – Global positioning system (GPS) fix data Time, position and fix-related data for a GPS receiver. $--GGA, hhmmss.ss, llll.ll, a, yyyyy.yy, a, x, xx, x.x, x.x, M, x.x, M, x.x, xxxx*hh<CR><LF> Field No. Format Description Remark hhmmss.ss UTC of position llll.ll,a Latitude N/S yyyyy.yy,a...
  • Page 105 GNS – GNSS Fix Data Fix data for single or combined satellite navigation systems (GNSS). This sentence provides fix data for GPS, GLONASS, possible future satellite systems and systems combining these. $-- GNS, hhmmss.ss, llll.ll, a, yyyyy.yy, a, c--c,xx,x.x,x.x,x.x,x.x,x.x,a *hh<CR><LF> Field No.
  • Page 106 xx,xx,xx,xx, xx,xx,xx,xx, ID numbers of satellites used in solution xx,xx,xx,xx PDOP HDOP VDOP HDT – Heading True Actual vessel heading in degrees true produced by any device or system producing true heading. $--HDT, x.x, T*hh<CR><LF> Field No. Format Description Remark x.x, T Heading, degrees true LRF –...
  • Page 107 LRI – AIS Long-Range Interrogation The long-range interrogation of the AIS unit is accomplished through the use of two sentences. The pair of interrogation sentence formatters, a LRI sentence followed by a LRF sentence, provides the information needed by a universal AIS unit to determine if it should construct and provide the reply sentences (LRF, LR1, LR2, and LR3).
  • Page 108 ROT – Rate of Turn Rate of turn and direction of turn. $--ROT, x.x, A*hh<CR><LF> Field No. Format Description Remark Rate of turn, °/min Status: A = data valid, V = data invalid SSA –Sender Signature Authentication This sentence can be used both for authentication of sender and for authentication of untampered content.
  • Page 109 SSD – AIS Ship Static Data This sentence is used to enter static parameters into a shipboard AIS unit. The parameters in this sentence support a number of the ITU-R M.1371 Messages. $--SSD,c—c,c—c,xxx,xxx,xx,xx,c,aa*hh<CR><LF> Field No. Format Description Remark c—c Ship’s call sign c—c Ship’s name Pos.
  • Page 110 VBW – Dual Ground/Water Speed Water-referenced and ground-referenced speed data. $--VBW, x.x, x.x, A, x.x, x.x, A, x.x, A, x.x, A*hh<CR><LF> Field No. Format Description Remark Longitudinal water speed, knots ignored Transverse water speed , knots ignored Status : water speed, A = data valid, V = data ignored invalid Longitudinal ground speed , knots...
  • Page 111 VSD – AIS Voyage Static Data This sentence is used to enter information about a ship’s transit that remains relatively static during the voyage. $--VSD,x.x,x.x,x.x,c—c,hhmmss.ss,xx,xx,x.x,x.x*hh<CR><LF> Field No. Format Description Remark Type of ship and cargo category Maximum present static draught Persons on-board c—c Destination...
  • Page 112 PAMC, DBG – Proprietary Sentences, Debug The proprietary sentences are additional sentences only applicable to this product. Its main usage is for enabling testing mode and parameter settings. This sentence is used for configuration. It commands unit with given parameters. $PAMC,C,c-c,x,x,x,x,x,x,x,x*hh<CR><LF>...
  • Page 113 PAMC, DSC – Proprietary Sentences, Digital selective calling When AIS transponder receives DCS messages, this sentence is used to output DSC pattern. $PAMC,R,DSC,c-c*hh<CR><LF> Field No. Format Description Remark DSC pattern ACN – Alert command This sentence is used for acknowledge, silence, responsibility transfer and to request repeat of alert details in case the reception process has detected, based on ALC, that ALF has been missed.

  • Page 114: Interpretation Of Output Sentences

    Interpretation of Output Sentences ABK – AIS Addressed and Binary Broadcast Acknowledgement The ABK-sentence is generated when a transaction, initiated by reception of an ABM, AIR, or BBM sentence, is completed or terminated. $--ABK,xxxxxxxxx,x,x.x,x,x*hh<CR><LF> Field No. Format Description Remark xxxxxxxxx MMSI of the addressed AIS unit AIS channel of reception ITU-R M.1371Message ID...
  • Page 115 ALR – Set Alarm State Local alarm condition and status. This sentence is used to report an alarm condition on a device and its current state of acknowledgement. $--ALR,hhmmss.ss,xxx,A, A,c--c*hh<CR><LF> Field No. Format Description Remark hhmmss.ss Time of alarm condition change, UTC Unique alarm number (identifier) at alarm source Alarm condition,...
  • Page 116 LR2 – AIS Long-Range Reply Sentence 2 The LR2-sentence contains the information items requested by the “B, C, E and F” function identification characters,(see the LRF sentence) LR2,x,xxxxxxxxx,xxxxxxxx,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x.x,T,x.x,N*hh<CR><LF> Field No. Format Description Remark Sequence number xxxxxxxxx MMSI of responder xxxxxxxx Date: ddmmyyyy, 8 digits hhmmss.ss UTC time of position...
  • Page 117 LRF – AIS Long-Range Function This sentence is used in both long-range interrogation requests and long-range interrogation replies. The LRF-sentence is the second sentence of the long-range interrogation request pair, LRI and LRF (see the LRI-sentence). $--LRF,x,xxxxxxxxx,c—c,c—c,c—c*hh<CR><LF> Field No. Format Description Remark Sequence number...
  • Page 118 TXT – Text Transmission For the transmission of short text messages. Longer text messages may be transmitted by using multiple sentences. $--TXT,xx,xx,xx,c--c*hh<CR><LF> Field No. Format Description Remark Total number of sentences Sentence number Text identifier c--c Text message VDM – AIS VHF Data-Link Message This sentence is used to transfer the entire contents of a received AIS message packet, as defined in ITU-R M.1371 and as received on the VHF Data Link (VDL), using the “six-bit”...
  • Page 119 VDO – AIS VHF Data-Link Own-Vessel Report This sentence is used to transfer the entire contents of an AIS unit’s broadcast message packet, as defined in ITU-R M.1371 and as sent out by the AIS unit over the VHF data link (VDL) using the “six-bit” field type. !--VDO,x,x,x,a,s—s,x*hh<CR><LF>...
  • Page 120 ALF – Alert sentence This sentence is used to report an alert condition and the alert state of a device. An ALF message shall be published for an alert each time the alert information in this sentence changes and on alert request $--ALF,x,x,x,hhmmss.ss,a,a,a,aaa,x.x,x.x,x.x,x,c---c*hh <CR><LF>...

  • Page 121: Appendix B: A750 Nmea 2000 Pgn Information

    Appendix B: A750 NMEA 2000 PGN Information The following table is a list of the NMEA 2000 PGNs supported by the A750 unit. OUTPUT Description 59392 ISO Acknowledgment 59904 ISO Request 60928 ISO Address Claim 126464 PGN List - Transmit PGN's group function...
  • Page 122 129806 AIS Channel Management 129807 AIS Group Assignment 129809 AIS Class B “CS” Static Data Report, Part A 129810 AIS Class B “CS” Static Data Report, Part B 129811 AIS Single Slot Binary Message 129812 AIS Multi Slot Binary Message 129813 AIS Long-Range Broadcast Message INPUT...

  • Page 123: Appendix C: Installation And Maintenance Record

    Appendix C: Installation and Maintenance Record The following installation record should be completed and retained on board the vessel for maintenance records. Vessel Information Vessel Name Flag State IMO Number MMSI Number Owner/Company Radio call sign Type of vessel Gross tonnage Length Beam AIS Class A Transponder Information...
  • Page 124 Connected Sensors and Devices Connected Port Equipment Model Number Sensor 1 Sensor 2 Sensor 3 Ext Display Port Pilot Port Long Range Port DGNSS Data Port Other Device Installer Information Company Name Technician’s Name Telephone/Mobile No. Address Place Date Installer’s Signature...
  • Page 125 Software Revisions The transponder is delivered with software version according to the following table which is to be filled in and maintained either by manufacturer, distributor, dealer, or installation company. When software update is done, the new software (firmware) version can be identified through MKD at MENU/DIAGNOSTICS/VERSION (please refer to section 4.10.10 in the manual).
  • Page 126 NOTE:...
  • Page 127 Alltek Marine Electronics Corporation 14F-2, No. 237, Sec. 1, Datong Rd., Xizhi Dist., New Taipei City, 22161, Taiwan Tel: +886 2 8691 8568 Fax: +886 2 8691 9569 Email: service@alltekmarine.com Website: www.alltekmarine.com...

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