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| 1 | Installation Manual | Users Manual | 2.87 MiB | March 03 2003 |
AIMS MIV AIS 1371-1 Technology TECHNICAL USER MANUAL Revision 01 IMPORTANT WARNINGS DANGER: HIGH VOLTAGE!
RISK OF ELECTRICAL SHOCK!
This unit has a high voltage source inside. Disconnect from the power before opening. DO NOT remove the covers while the unit is switched on. 5 Volt electrical power on GPS and DBR (when fitted) antenna ports. NOTICE Compass safe distance is 1 meter. NOTICE No user serviceable parts inside, servicing only by properly qualified and certified technical staff. The GPS module uses a back-up battery to ensure quick start-up of the GPS unit. This battery must be replaced every 5 years. NOTICE NOTICE This manual is for informational use only, and may be changed without notice. This manual should not be construed as a commitment of Marine Data Systems. Under no circumstances does Marine Data Systems assume any responsibility or liability for any errors or inaccuracies that may appear in this document. The equipment should only be used for the purposes intended by the manufacturer; any deviation from this will void the warranty of the product. Document No. 1101-0010-AA-00-TM Issue: 10 Marine Data Systems (Pty.) Ltd.
AIMS MIV Manual Table of Contents TABLE OF CONTENTS 1.1. 1.2. 1. INTRODUCTION .............................................................................................. 7 Automatic Identification System (AIS) Overview .........................................7 AIS Unit Overview......................................................................................7 Data Interfaces..............................................................................................................7 RF Interfaces.................................................................................................................8 Technical data...............................................................................................................8 Dimensions And Weights..............................................................................................8 Receiver Default Frequencies.......................................................................................9 AIS Receivers ...............................................................................................................9 AIS Transmitter .............................................................................................................9 DSC Receiver................................................................................................................9 Alarm Relay.................................................................................................................10 Compass Safe Distance..............................................................................................10 Navigation Specifications (Internal Sensors) ..............................................................10 Listener and Talker Specifications ..............................................................................11 1.2.1. 1.2.2. 1.2.3. 1.2.4. 1.2.5. 1.2.6. 1.2.7. 1.2.8. 1.2.9. 1.2.10. 1.2.11. 1.2.12. 2.5.1 2.7.1. 2.5.2. 2.6. 2.7. 2.1. 2.2. 2.3. 2.4. 2.5. 2. INSTALLATION ............................................................................................. 13 Unpacking the Unit....................................................................................13 Mounting the Unit......................................................................................13 External Interfaces....................................................................................15 Grounding the AIS unit..............................................................................16 AIS VHF Antenna installation....................................................................17 Alternative VHF antenna installation options...................................................................18 2.5.1.1. Option 1 .............................................................................................................................. 18 2.5.1.2. Option 2 .............................................................................................................................. 19 Minimising Interference: Additional Guidelines ...........................................................19 AIS GPS Antenna Installation ...................................................................19 Cable and Plug Connection Specifications................................................20 RF Cables ...................................................................................................................20 2.7.1.1. GPS Antenna (Cable type E)............................................................................................... 20 2.7.1.2. VHF Antenna (Cable type F) ............................................................................................... 21 2.7.1.3. DBR Antenna (Cable Type L) .............................................................................................. 21 Data Interface Connections.........................................................................................21 Presentation Interface ......................................................................................................... 21 2.7.2.1. Pilot Port ............................................................................................................................. 23 2.7.2.2. KDU (Keyboard Display Unit) .............................................................................................. 23 2.7.2.3. Long-Range Communication Port (L/RANGE I/O)............................................................... 24 2.7.2.4. 2.7.2.5. Sensor Input Ports (SENS 1, SENS 2, SENS 3) ................................................................. 24 2.7.2.6. DGNSS Port........................................................................................................................ 25 Service Port......................................................................................................................... 26 2.7.2.7. Power Supply Input .....................................................................................................27 Alarm Relay Connection .............................................................................................27 Cable Assemblies .......................................................................................................28 2.7.5.1. Cable Types A, B, C, D ...................................................................................................... 28 2.7.5.2. Cable Type G Assembly Power cable .............................................................................. 29 2.7.3. 2.7.4. 2.7.5. 2.7.2. AIS 3 2.8. Table of Contents AIMS MIV Manual 2.7.5.3. Cable Type H Assembly Alarm cable ............................................................................... 29 2.7.5.4. Cable Type J Assembly....................................................................................................... 30 2.7.5.5. Cable Type E, F and L Assembly ........................................................................................ 31 Installation Check......................................................................................32 3.3. 3.2.1. 3.1. 3.2. 3.3.1. 3.3.2. 3. TECHNICAL DESCRIPTION.......................................................................... 33 AIS unit Overview .....................................................................................33 System Modes of Operation......................................................................34 Mobile Station .............................................................................................................34 Serial Communications .............................................................................34 Presentation, Pilot and KDU ports ..............................................................................34 Sensor ports (input sentences only)............................................................................38 Position and Time: .............................................................................................................. 38 3.3.2.1. Speed over ground: ............................................................................................................. 39 3.3.2.2. 3.3.2.3. Course over ground:............................................................................................................ 40 3.3.2.4. Heading:.............................................................................................................................. 40 3.3.2.5. RAIM indicator:.................................................................................................................... 40 3.3.2.6. Rate of turn: ........................................................................................................................ 40 Service port .................................................................................................................41 Long Range port .........................................................................................................41 Alarm messages .......................................................................................41 Status messages ......................................................................................44 AIS Receiver Module (RCM 1 or 2) ...........................................................44 Usage of NMEA sentences .......................................................................44 3.4. 3.5. 3.6. 3.7. 3.3.3. 3.3.4. 4.1. 4.2. 4.2.1. 4.2.2. 4. SERVICE........................................................................................................ 49 Explanation of the LEDs............................................................................49 System Indicators (additional information) ................................................50 DIFF. FIX.....................................................................................................................50 Receiver failure ...........................................................................................................50 Alarm relay................................................................................................50 Troubleshooting ........................................................................................50 Security log retreival .................................................................................50 Replacing the Modules..............................................................................52 4.3. 4.4. 4.5. 4.6. 5.1. 5.2. 5. APPENDICES ................................................................................................ 54 Abbreviations ............................................................................................54 Reference Documents ..............................................................................56 List of standards and specifications: ...........................................................................56 List of Related Software and Manuals:........................................................................57 AIMS Serial interface Listener and Talker circuit diagrams ..................58 5.2.1. 5.2.2. 5.3. LIST OF FIGURES Figure 1: AIS Unit Dimensions..................................................................................... 14 4 AIS AIMS MIV Manual Table of Contents Figure 2: Mounting the AIS Unit................................................................................... 14 Figure 3: External Interface Block Diagram ................................................................. 15 Figure 4: External Interfaces on the rear panel of the AIS unit..................................... 15 Figure 5: Grounding the AIS unit ................................................................................. 17 Figure 6: AIS Antenna and Ships VHF Placement ...................................................... 18 Figure 7: Alternative AIS Antenna and Ships VHF Placement..................................... 19 Figure 8: Data Cable Terminations (AIS unit Side) ...................................................... 28 Figure 9: Cable Type G Assembly (AIS unit Side) ....................................................... 29 Figure 10: Cable Type H Assembly (AIS unit Side)...................................................... 29 Figure 11: Cable Type J Assembly .............................................................................. 30 Figure 12: Cable type E, F and L Assembly................................................................. 31 Figure 13: AIS unit Block Schematic............................................................................ 33 Figure 14: Ship dimensions and related fields ............................................................. 38 Figure 15: AIS unit Module Layout (bottom view)......................................................... 52 Figure 16: AIS unit Module Layout (top view)............................................................... 52 Figure 17. RS422 General Listener circuit diagram................................................... 58 Figure 18. RS422 General Talker circuit diagram...................................................... 58 LIST OF TABLES Table 1: Presentation Interface Messages................................................................... 36 Table 2: Vessel and Cargo type................................................................................... 37 Table 3: Position Sensor Precedence.......................................................................... 39 Table 4: Rate of Turn Sensor Precedence................................................................... 40 Table 5: AIS Standard alarm messages ...................................................................... 42 Table 6: Proprietary alarm definitions .......................................................................... 43 Table 7: Proprietary status messages.......................................................................... 44 Table 8 : NMEA message usage .................................................................................. 48 Table 9: LED Operation ................................................................................................ 49 AIS 5 Table of Contents AIMS MIV Manual Marine Data Systems would like to take this opportunity to congratulate you on the purchase of your AIS unit. We want to assure you that this product is manufactured from only the highest quality components and thoroughly tested to ensure your complete satisfaction. If you have any questions, or queries related to this product, please do not hesitate to contact us:
Physical Address:
580 Kyalami Boulevard Kyalami Business Park Kyalami Midrand South Africa Postal Address:
PostNet Suite #4 Private Bag X11 Halfway House 1685 South Africa Email: support@marinedata.co.za Website:
www.marinedata.co.za Telephone:
+27 11 549 1800 Fax:
+27 11 549 1867 Thanking you, THE MDS TEAM 6 AIS AIMS MIV Manual Introduction 1. INTRODUCTION 1.1. Automatic Identification System (AIS) Overview AIS is a radio data system where two or more stations operate on one or more radio channels using Time Division Multiple Access (TDMA). These units can be mobile, base or repeater stations. Mobile stations are installed onboard vessels and integrated to the vessels sensors and display systems. Base stations, on the other hand, are installed on the shore side and allow remote monitoring of vessel traffic within the VHF coverage area of the base station. Base stations can be interconnected via an AIS Network to cover a larger area. Repeater stations can be used to extend the required coverage area, preferably where the traffic load is low and there is a lack of suitable communications infrastructure. The main objective of the system is to assist in safer navigation; that is, sharing ship-to-ship, positional information, speed over ground, course over ground, heading, rate of turn, static and voyage information, as well as safety-related messages. The Automatic Identification System (AIS Class A) is defined by the IMO and has been made a carriage requirement by the latest revision of SOLAS Chapter V. This does not only require the AIS to be installed, but also to provide information used for ship navigation. The AIS has been standardised by the ITU and IEC and is subject to type approval. In order to fulfil the reliability requirements of information exchange, care must be taken to ensure the AIS unit is correctly installed. 1.2. AIS Unit Overview The AIS Unit operates in the VHF Maritime Mobile Band and, according to its programmed mode, operates:
Ship to ship, Ship to shore, Shore to ship. The AIS Unit operates autonomously with minimum user intervention and has a built-in display that monitors system health and activity. It is made up of a set of easily removable modules that can be replaced without any system adjustment or calibration. It also incorporates those features of Digital Selective Calling (DSC) required by the AIS specifications. This means that the AIS Unit transmits and receives specified AIS related DSC messages on the maritime VHF DSC channel 70. 1.2.1. Data Interfaces The AIS Unit is equipped with external interfaces that allow connection to:
Keyboard Display Unit (KDU) Pilots Display Unit (PDU) 3 Ships Sensors Inputs (Typically Gyro, GPS and ROT Sensor) Ships ARPA Radar AIS 7 Introduction AIMS MIV Manual Ships ECDIS/ECS Other NMEA-compliant ships navigation equipment Displaying of incoming messages requires the connection of an external terminal to at least one of the specified interfaces, such as a Keyboard Display Unit. 1.2.2. RF Interfaces The AIS Unit has three RF interfaces:
VHF Antenna GPS Antenna Differential Beacon Receiver Antenna (DBR port) for optional internal DBR 1.2.3. Technical data Classification Class A shipborne equipment of the Universal Automatic Identification system (AIS). Complies with recommendation ITU.R M.1371-1, IEC 61993-
2, IEC 61162-2, IEC 60945 and IMO resolution MSC.74 (69) Annex 3. AIS Unit Presentation Interface According to Specification IEC 61993-2, IEC 61162-1, IEC 61162-2*. RS422 interface 2 pair cable (shielded) up to 100m carrying TX/RX data Or RS232 interface Services AIS Modulation AIS Coding Supply Voltage Supply Power consumption Operating Temperature range Heat Dissipation Multi-conductor cable (shielded) up to 15m carrying TX/RX data. GPS Position reporting Short message services. AIS related DSC BIT display. TX/RX 9.6kbits/s GMSK HDLC with bit stuffing 24VDC (+30% to -10%) Switched mode with Galvanic Isolation Maximum 4A at 24VDC in transmit; Nominal 2A at 24V
-15 to +55 C. 100W (during transmit) Power Fuse
* The AIS unit is compliant with IEC 61162-1 and available in IEC 61162-2 on the physical level at customer request for early 6.3A versions of this product. Later versions of the product are IEC 61162-2 compliant by default. NOTE:
The input power to the AIS unit has reverse and over-voltage protection. If the polarity of the input power is incorrect, the unit will not switch on. Correct the polarity to restore operation. If the voltage to the AIS unit goes over 32V to 35V, the unit will protect it by blowing the fuse on the rear panel of the unit. Correct the voltage and replace the fuse to restore operation. 1.2.4. Dimensions And Weights 445mm Width Height Depth Weight 8 80mm 360mm 8.5kg AIS AIMS MIV Manual Introduction 1.2.5. Receiver Default Frequencies Designation AIS1 Channel 87B 88B 70 Frequency (MHz) 161.975 162.025 156.525 AIS2 DSC 1.2.6. AIS Receivers Frequency range Channel spacing AIS Modulation AIS Modulation AIS Data Rate Packet Error Rate (PER) Adjacent Channel Rejection Blocking and Intermodulation Large Signal PER (-7dBm) Image Rejection IF Rejection Spurious Rejection Frequency Stability 156.025MHz to 162.025MHz 12.5kHz and 25kHz 25kHz Channels: GMSK 12.5kHz Channels: GMSK 9,600bits/s 10% or better at -107dBm (25kHz) 20% or better at -98dBm (12.5kHz) 70dB (25kHz) 50dB (12.5kHz) PER 20% for 1 tone -15dBm at Fo 5.725MHz and 2 tones of -27dBm at Fo +500kHz and Fo +1MHz. 1% or better 70dB for 20% PER 70dB for 20% PER 70dB for 20% PER 1ppm 1.2.7. AIS Transmitter Frequency Range 156.025MHz to 162.025MHz Output Power Harmonic Emission Spurious Emission Ramp Up Ramp Down Antenna Output Impedance Channel Protection Frequency Accuracy 12.5W or 2W
-77dBc ( 0.25m W)
-77dBc ( 0.25m W) 1ms 1ms 50W 1 second max on air 0.5kHz (Normal temperature conditions 15C to 35C) 1kHz (Extreme temperature conditions 15C to15C and 35C to 55C) 1.2.8. DSC Receiver Frequency Range Always fixed to Channel 70 Channel Spacing 25kHz Modulation Data Rate BER AIS 1300Hz/2100Hz 2 Tone FSK 1,200bits/s 10-4 at 107dBm 9 Introduction AIMS MIV Manual Adjacent Channel Rejection Blocking Image Rejection IF Rejection Frequency Stability NOTE:
70dB (25kHz) 84dB 70dB 70dB 1ppm When required, the AIS Unit may be equipped with a 4th receiver. This can be used where it is required to receive additional data such as radar footprint broadcasts from a shore station without interfering with normal AIS operation. It is also possible to replace the DSC receiver with another AIS receiver when DSC is not required. Contact your distributor for more details. 1.2.9. Alarm Relay The AIS unit has an alarm relay built-in as a standard feature. It is accessible using the alarm interface connector, located on the rear panel. Contact rating Voltage (Average) Current (Maximum) 24VDC 1A 1.2.10. Compass Safe Distance Compass Safe measurements, in accordance with IEC 60945, are given below in metres:
Distance from Compass
(m) Background (No EUT Present) 0.1 0.2 0.3 0.4 0.5 0.6 Compass Reading (Degrees) Compass Deviation (Reading-Background)
(Degrees) 270.00 276.7 271.1 270.2 270.0 270.0 270.0
6.7 1.1 0.2 0.0 0.0 0.0 It is recommended to mount the AIS unit more than 1m from the compass to prevent any interference. 1.2.11. Navigation Specifications (Internal Sensors) 8/12 Channel Internal Global Positioning System (GPS) [Standard]. Internal Differential Beacon Receiver (DBR) [Optional]. NOTE:
10 The ships GPS/DGPS NMEA sensor will normally be connected to any of the three sensor input ports
(Sensor 1, Sensor 2 or Sensor 3). The internal GPS is always present but is only used for acquiring position data when it is differentially corrected and an external differentially corrected GPS is not available. Refer to Table 3: Position Sensor Precedence, on page 39, for a full position sensor precedence listing. AIS AIMS MIV Manual Introduction 1.2.12. Listener and Talker Specifications Vin = +10V, other input = GND Vin = -10V, other input = GND Differential input voltage sensitivity Current drawn 25mA (typical) 48mA (typical) 58mA (typical) Listener load 1.8mA (typical)
-2.7mA (typical) 200mV (typical) Talker drive capability Differential Output Voltage 3V differential output 2V differential output 1.5V differential output AIS 11 AIMS MIV Manual Installation 2. INSTALLATION Since the installation of an AIS unit is complex, an initial installation configuration report, made during installation, should be kept on board the vessel. This should include at least the following:
AIS configuration data (i.e. MMSI, ship name, etc.) Antenna layout AIS arrangement drawing Interconnection diagram 2.1. Unpacking the Unit The AIS Unit package includes the following:
AIS Unit Power connector Mounting bracket set with mounting screws 2 x Spare fuses This technical manual Alarm output connector Declaration of Conformance Factory test result sheet CD with AIMS utility and manual (Optional) 2.2. Mounting the Unit The AIS Unit should be mounted to a bulkhead, either on the bridge, in the chart room or the radio room. It may also be mounted to any suitable flat surface, where the unit will not be exposed to the elements and with access to all the relevant sensors and interfaces. AIS equipment is categorised as Protected Equipment under IEC 60945 (an environmental standard for equipment). To prevent the build-up of heat, the AIS Unit should be mounted in a space with good ventilation. Care must be taken when mounting the AIS Unit to ensure that there is sufficient space for the cables and connectors. In particular, sharp bending of the RF cables must be avoided. Attach the bracket assemblies to the unit, using the screws supplied, see Figure 2: Mounting the AIS Unit. Mount the unit to a suitable surface (as explained above), using the mounting brackets and some mounting screws. Ensure that the unit is mounted so that the display can easily be read for diagnostic and maintenance purposes. AIS 13 Installation AIMS MIV Manual Figure 1: AIS Unit Dimensions Figure 2: Mounting the AIS Unit 14 AIS AIMS MIV Manual Installation 2.3. External Interfaces Figure 3: External Interface Block Diagram Figure 4: External Interfaces on the rear panel of the AIS unit AIS 15 Installation AIMS MIV Manual External Interface Legend (refers to Figure 3 and Figure 4) Interface Reference Designation Power Alarm Service Port Details
+24VDC Input. Connector Type G Alarm Relay Output. Connector Type H For download of software upgrades. Cable Type J. Only used by service personnel. Presentation Port (Primary Display) Primary Display port. Cable Type D or A (*) Pilot Port KDU Pilots Display Port. Cable Type A. Keyboard Display Unit. Cable Type B. Long Range Port For Log Range Communications Terminal. Cable Type A. Sensor 3 Sensor 2 Sensor 1 DGNSS DBR Antenna VHF Antenna GPS Antenna For Navigation Sensor Input. Cable Type C. For Navigation Sensor Input. Cable Type C. For Navigation Sensor Input. Cable Type C. Output of GPS Differential Correction Data (when Beacon Receiver fitted as option or differential data is received on VDL). Input of externally derived Differential Correction Data. Cable Type A. Otherwise unused) (**). TNC DBR Antenna Port. Cable type L. TNC VHF Antenna Port. Cable Type F. TNC GPS Antenna Port. Cable Type E. Earth Chassis Earthing Terminal. Cable Type K. 1 2 3 4,5 6 7 8 9 10 11 12 13 14 15 16 For cable type definitions, refer to section 2.7 NOTES:
The RS232 port may not be used on ship installations, because it will cause currents to flow through the ships hull and cause corrosion. RS232 ports also causes unwanted electromagnetic emissions. This is a non-mandatory port to provide for situations where an external differential data source is available and GPS Differential correction data can be fed to the GPS in the AIS unit. Also, when the AIS unit is fitted with the optional internal Differential Beacon Receiver, the Differential Correction Data from that Beacon Receiver will be output from this port for application to an external GPS. This port may only be used with the correct software options. Consult your supplier. 2.4. Grounding the AIS unit Using a crimp lug and 2.5mm x 2.5mm copper earth strap, the AIS unit should be connected to the ships ground directly with an earth strap as shown below. The earth strap should not be more than 1m. If a longer earth strap is required, thicker wire should be used. The copper earth strap and the steel bulkhead connection should be brazed soldered (i.e. hard solder), for vibration and anti-corrosion purposes. Protective paint can be applied over the earth lug to prevent any degradation in connectivity due to salt corrosion. 16 AIS AIMS MIV Manual Installation Figure 5: Grounding the AIS unit 2.5. AIS VHF Antenna installation The AIS unit is a low-noise device, but as it transmits short bursts of energy on a continuous basis, the possibility of interference with other VHF radios must be minimised by following the guidelines provided below. The interference will be heard as a periodic soft clicking noise on the VHF radiotelephone. This effect may become more noticeable when the radiotelephone is operating on channels near the AIS operating channels. Location of the mandatory AIS VHF antenna should have first priority, since digital communications are more sensitive than analogue voice radios to interference created by reflections from obstructions such as masts and booms. To minimise interference, the following guidelines should apply:
The AIS VHF antenna should have omni-directional vertical polarisation. The AIS VHF antenna should be placed in an elevated position that is as free as possible from constructions made of conductive materials, with a minimum of 2 metres in horizontal direction. The antenna should not be installed close to any large vertical obstruction. The objective is for the AIS VHF antenna to see the horizon freely through 360 degrees. The AIS VHF antenna should be installed safely away from interfering high-
power energy sources such as radar and other transmitting radio antennas -
preferably at least 3 meters away from, and outside of the transmitting beam. There should not be more than one antenna on the same level. The AIS VHF antenna should be mounted directly above or below the ships primary VHF radiotelephone antenna, with no horizontal separation and with a minimum of 5 metres vertical separation. If it is located on the same level as other antennas, the distance apart should be at least 10 metres. AIS 17 Installation AIMS MIV Manual 2.5.1 Alternative VHF antenna installation options 2.5.1.1. Option 1 Figure 6: AIS Antenna and Ships VHF Placement NOTES:
This arrangement should only be used when it is not possible to mount the antenna on a mast with suitable vertical antenna separation. Maximum separation of the antennas is essential. When this arrangement is used, great care must be taken to ensure that minimum interference is caused to other VHF equipment. 18 AIS AIMS MIV Manual Installation 2.5.1.2. Option 2 Figure 7: Alternative AIS Antenna and Ships VHF Placement NOTES:
This arrangement should only be used when it is not possible to mount the AIS antenna on the highest possible position with suitable vertical antenna separation. Maximum separation of the antennas is essential. When this arrangement is used, great care must be taken to ensure that minimum interference is caused to other VHF equipment. 2.5.2. Minimising Interference: Additional Guidelines When mounting the AIS antenna away from a mast that carries ships VHF Antennas, always keep the AIS antenna as far away from the other VHF Antennas as possible After installing and commissioning the AIS unit, remember to listen to the ships VHF radios while the AIS unit is operating. In the unlikely event of interference, you will have to make changes to the antenna installation. 2.6. AIS GPS Antenna Installation The AIS GPS antenna installation position is critical to the working of the AIS system. The AIS GPS antenna must be installed so that it has a clear view of the sky. The antenna must see the horizon through 360 degrees, horizontally, and 5 to 90 degrees, vertically, above the horizon. Small diameter obstructions, such as masts and booms, will not seriously affect AIS 19 Installation AIMS MIV Manual GPS working. Such objects should not obstruct more than a few degrees of the sky for any given bearing. The AIS GPS antenna should be at least 3 meters away from high power transmitters, and out of their transmitting beam. Such transmitters include the AIS VHF antenna, S-Band radars and Inmarsat-C. If a DGNSS system is part of the AIS system, the installations shall be in accordance with IEC 61108-4 Ed1, Annex D. To overcome the losses due to antenna cables, the GPS antenna pre-amplifier should be 0dB to 10dB more than the antenna cable loss. 2.7. Cable and Plug Connection Specifications 2.7.1. RF Cables All outdoor-installed coaxial cable connectors should be fitted with preventative insulation such as shrink-stocking with silicone to protect against penetration of water into the antenna cable. Coaxial cables should be installed in separate cable channels, at least 100mm away from power cables. Where cables cross each other, this should be done at right angles (90). The installation of RF cables should take into account that RF-cables impedance may change if subjected to sharp turns. As a rule of thumb, coaxial cables should not turn with a radius of less than 5 times the cable outside diameter. NOTE:
Coaxial antennas and cables should be properly earthed. 2.7.1.1. GPS Antenna (Cable type E) The cable between the GNSS antenna and the AIS unit should be routed directly to reduce electromagnetic interference effects. The RF cable should not be installed close to high-
power lines, such as radar or radio-transmitter lines or the AIS VHF antenna cable. A separation of one meter or more is recommended to avoid degradation due to RF-coupling. Crossing of antenna cables should be done at 90 degrees to minimise magnetic field coupling. Cable:
RG213 is recommended Maximum recommended cable length:
20m (with an active GPS antenna) Cable connector:
TNC male connector at AIS unit side. NOTE:
20 An excessively long cable will degrade AIS unit performance and possibly cause the GPS to not lock onto GPS satellites. The GPS antenna centre conductor carries a 5VDC output for powering an active GPS antenna. The maximum current driving capability of this 5V output is 150mA AIS AIMS MIV Manual Installation 2.7.1.2. VHF Antenna (Cable type F) Cable:
Maximum cable length:
RG214 is recommended. The cable should be kept as short as possible to minimise attenuation of the signals. An attenuation of 0.8dB per 10 meter is normal for RG214 at 160MHz. Thus, the attenuation will be 4dB. for 50m, TNC male connector at AIS unit side. Cable connector:
NOTE:
An excessively long cable will degrade AIS unit performance and result in reduced range of operation. 2.7.1.3. DBR Antenna (Cable Type L) Cable:
RG 213 is recommended Maximum recommended cable length:
75m Cable connector:
NOTE:
TNC male connector at AIS unit side. An excessively long cable will degrade AIS unit performance and possibly cause the DBR to not lock onto beacon transmitters. The DBR antenna centre conductor carries a 5VDC output on the centre conductor for powering an active GPS antenna when a DBR is fitted and a combined GPS/DBR antenna is used. The maximum current driving capability of this 5V output is 150mA 2.7.2. Data Interface Connections 2.7.2.1. Presentation Interface There are two physical connector ports: RS232 or RS422. The RS232 and RS422 ports cannot be used simultaneously. The RS232 port may not be used for ship installations. This port is used to connect the primary AIS display unit. All received messages (AIS) are sent out via this port; there is also a software user interface on this port. The data rate for this port is 38,400 bits/s. It operates on a protocol compliant with IEC 61162-2. IEC 61162 places certain constraints on the shielding and isolation requirements with regards to the termination of the duplex Presentation Interface, Pilot, KDU and Long Range ports. The transmit and receive portions of the IEC 61162 ports must have separate shields. For this reason, it is recommended to use two separate shielded cables - one for the transmit section of the port and one for the receive section. For the transmit portion of the port, the shield of the cable must be connected to the connector shell. The shield for the receive portion of the port may not be connected at the AIS unit side. The following general configuration must be followed:
AIS 21 Installation AIMS MIV Manual Connections to the Presentation Interface Cable type A Cable:
Two Shielded twisted-cable 2 x 2 pair 0.5mm2. Maximum cable length:
100m Cable connector:
9 way D-sub male. PIN Description TX Cable pair RX Cable pair 1 2 3 4 5 6 7 8 9 Input Line A (RX A) Output Line A (TX A) Output ground (TX C) Output Line B (TX B) Input Ground (RX C) Input Line B (RX B) 1 1 2 1 2 (Can also be the shield of the cable if no Common is available) 1 Shell Shielding Shield of cable Not connected Cable type D for RS232 connection Cable:
Multi-cable 3 x 0.5mm2 shielded. Maximum cable length:
15m Cable connector:
9 way D-sub male. PIN (AIS unit) Description PC (DTE device) 1 2 3 4 5 6 22 Receive Data Transmit Data Signal Ground No Connection 2 3 No Connection 5 No Connection AIS AIMS MIV Manual Installation PIN (AIS unit) Description PC (DTE device) 7 8 9 No Connection No Connection No Connection Shell of connector Shield Shell of connector Connect the shield of the cable to the shell of the connector at both sides. 2.7.2.2. Pilot Port The Pilot Port is electrically identical to the RS 422 Presentation Port. The default data rate is 38,400 bits/s. It operates on a protocol compliant with IEC 61162-2. Connections to the Pilot Port Use Cable type A as described under the Presentation port. In accordance with the document Guidelines relating to SOLAS chapter V: Guidelines for installation of Shipborne Automatic Identification System (AIS), the Pilot port shall be installed on the bridge near the pilots operating position, so that the Pilot can connect his Personal Pilot Unit (PPU) to this point. This Pilot plug must have the following characteristics:
Type of plug: AMP/Receptacle. It can be made up to be mounted permanently to a position or it can be free-hanging. The shell size must be 11, 9-pin, Std. Sex 206486-1/2 or equivalent. The cable connection is as follows:
Pin (AIS DB 9 connector) Connection Pin (AMP Pilot plug) 1 2 3 4 5 6 7 8 9 NC RX A (Input line A) TX A (Output line A) TX B (Output line B) RX B (Input line B) Shield of cable 5 1 4 6 NC 2.7.2.3. KDU (Keyboard Display Unit) AIS 23 Installation AIMS MIV Manual The KDU port is electrically identical to the RS 422 Presentation Port and the Pilot Port as described above. The default data rate is 38,400 bits/s. It operates on a protocol compliant with IEC 61162-2. For the layout of the connection at the KDU side, it is advised that the user/installer refer to the KDU manual (AIMS K1). Connections to the KDU Port Use Cable type A as detailed above under Presentation Interface. The cable for connecting the AIMS M4 to the AIMS K1 would be as follows:
PIN (AIS DE 9 connector) Description TX Cable pair RX Cable pair PIN (AIMS K1 KDU) 1 2 3 4 5 6 7 8 9 Input Line A (RX A) Output Line A (TX A) Output ground (TX C) Output Line B (TX B) Input Ground (RX C) Input Line B (RX B) 1 2 1 1 2 1 9 4 8 6 5 3 NC Shell of DE9 NC Shield Shield of cable Shield Shell of connector 2.7.2.4. Long-Range Communication Port (L/RANGE I/O) The port is used for connection to a long-range communications terminal, for example Inmarsat-C. The protocol is according to IEC 61162-2. A conversion may be required between the Inmarsat C terminal and the AIS unit, depending on the interfaces required. The port is configured to work at 38,400 bits/s. Connections to the Long-Range Port Use Cable type A as detailed above under Presentation Interface. 2.7.2.5. Sensor Input Ports (SENS 1, SENS 2, SENS 3) The AIS unit is equipped with sensor inputs for position, speed, heading and rate-of-turn. These ports are input ports only. They are RS 422 IEC 61162-2 protocol and operate at a default data rate of 4,800 bits/s, but will also auto configure to 38,400 bits/s if equipment that is connected to these ports has that bit rate. Sensors installed on board the ship for SOLAS Chapter V shall be connected to the AIS unit. The information that the AIS must transmit should be the information used for the navigation of the ship. When these sensors do not have outputs that comply with IEC 61162, the installer will experience interfacing problems. 24 AIS AIMS MIV Manual Installation The ports are used for connecting navigation sensors in accordance with NMEA 0183 standards. Normally, one of the ports will be connected to the ships GPS or other position-fixing system. The other two sensor ports will normally be connected to the ships gyro and ROT sensor. The sensor ports are interchangeable. Connections to the Sensor Ports Cable type C Cable:
Twisted pairs:
Multi-cable 2 x 2 x 0.5mm2 shielded. 3 and 9, 8 and spare Maximum cable length:
100m Cable connector:
9 way D-sub male. PIN Description Cable pair Input Line A (RX A) 1 Input Ground (RX C) Input Line B (RX B) Shell of connector Shield of cable 2 1 NC IMPORTANT NOTE:
2.7.2.6. DGNSS Port Do not connect the shield of the cable to any pin on the connector or to the backshell of the connector. Where a common is not available in the cable, the shield of the cable may be connected to pin 8 of the connector on the AIMS MIV. This is a non-mandatory port provided on the AIS unit that can provide GPS differential correction data output where an internal Beacon Receiver is fitted (as an option) as well as providing for an input when an external correction source is available. If will also output differential data to this port when a differential correction message (message 17) is received on the VDL. The default data rate for this port is 4,800 bits/s. The port will operate to recommendation ITU R.M 823-3 protocol. Connections to the DGNSS Port Connection to this port is per Cable Type A. AIS 25 1 2 3 4 5 6 7 8 9 Installation AIMS MIV Manual 2.7.2.7. Service Port The service serial port is used to upload software upgrades to the AIS unit. It is a RS232 level three-wire connection operating on a proprietary protocol at various data rates, as it is driven from the external application. Refer to Figure 11: Cable Type J Assembly for connector assembly details. WARNING: This port may only be used by qualified personnel. Permanent connection to this port is not allowed. The pin assignments on this port is not according to the RS232 specification, since there is a custom pin assignment made. Connections to the Service Port Cable type J Cable:
2 x Multi-cable 5 x 0.5mm2 shielded. Maximum cable length:
2m Cable connector:
9 way D-sub male at AIS unit. 2 x 9 way D-sub female at PC side. Uploading new software to the AIS unit requires that the connector cable has two multi-core terminations for programming different sections of the system (the MCM and the SCM) as illustrated in Figure 11. The two cable terminations are therefore described separately as follows:
SCM Termination:
AIS unit PIN Description PC PIN DSR Transmit Receive CTS Signal Ground 1 2 3 4 5 6 7 8 9 MCM Termination:
AIS unit PIN Description 1 2 3 4 5 6 7 26 Signal ground DSR Transmit 4 2 3 7 5 No Connection No Connection No Connection No Connection PC PIN No Connection No Connection No Connection No Connection 5 4 2 AIS AIMS MIV Manual Installation AIS unit PIN Description PC PIN 8 9 Receive CTS 3 7 2.7.3. Power Supply Input The power port will accept a +24VDC supply input. It is internally fused with a 6.3A fuse. It is recommended that the cable length should not exceed 3m. Cable type G A twin core cable with a rated capacity of 10A should be used. The cable must have an outer diameter of either 5mm or 8mm to fit the power plug supplied with the AIS unit. 24V Power Supply Input Cable Cable Type 2 x 0.75mm2 2 x 1.5mm2 2 x 2.5mm2 Suggested Maximum Length (m) 3 10 15 Power Supply Connector The connector is a FCI (full plastic Bantam) UTP6104S female. The connector has 4 pins, of which 2 are used as shown in Figure 9. The supply is galvanically isolated. Supply Voltage:
Fuse:
+24VDC 6.3A. 2.7.4. Alarm Relay Connection The connector is a FCI (full plastic Bantam) UTP6103S female. The connector has three pins: 1, 2 and Common as shown in Figure 10. The Common pin is the common connection for normally open and normally closed connections and the No Alarm condition shall be:
Normally open to pin 1 Normally closed to pin 2 IMPORTANT NOTE!
The common connection must not be connected to the units ground. Alarm Relay characteristics The Alarm changes from No Alarm to Alarm on the malfunction of any part of the unit. This alarm connection is designed to be failsafe; that is, to activate whenever it is not AIS 27 Installation AIMS MIV Manual updated with a no alarm for more than 1 minute. The alarm relay will also report an Alarm condition then the AIS unit is powered down. The relay contacts are rated at 24V, 1A. The relay contacts are galvanically isolated from the AIS unit housing. Cable Type H PIN 1 2 Description Normally Open Normally Closed Ground Common 2.7.5. Cable Assemblies 2.7.5.1. Cable Types A, B, C, D Figure 8: Data Cable Terminations (AIS unit Side) IMPORTANT:
Do not connect the shield of the cable to the shell of the connector for any receiving circuits. 28 AIS AIMS MIV Manual Installation 2.7.5.2. Cable Type G Assembly Power cable Figure 9: Cable Type G Assembly (AIS unit Side) 2.7.5.3. Cable Type H Assembly Alarm cable Figure 10: Cable Type H Assembly (AIS unit Side) IMPORTANT NOTE:
Slide the cable clamps, metal washers and sealing washer over the cable before pushing the pins into the connector socket portion. The connector inserts can only be removed from the connector socket with a special tool. AIS 29 Installation AIMS MIV Manual 2.7.5.4. Cable Type J Assembly Figure 11: Cable Type J Assembly 30 AIS AIMS MIV Manual Installation 2.7.5.5. Cable Type E, F and L Assembly Figure 12: Cable type E, F and L Assembly The drawing shows the fitting of RG 213, but is also valid for RG 214. AIS 31 Installation AIMS MIV Manual 2.8. Installation Check Before powering on the AIS unit, the alarm relay must indicate an Alarm condition. Connect the 24 VDC source to the unit. Power on the unit. The unit will be operational within 2 minutes after switch-on. Sensors will be allowed their permissible start-up time, that is, 30 minutes for GPS when there is no almanac data available; this is usually on first time power-up, or power-up in a different geographical region to that from which the system was shipped. On boot-up, the system receivers and transmitter are set up for the default AIS and DSC frequencies. All LEDs will illuminate when switched on, and the unit will run a self-test. Faults will be displayed on the LEDs. During the self test, all LEDs (except RS4 if not fitted) will illuminate red for 2 seconds, then Green for 2 seconds, then the normal status indication will start. During normal operation, the SCM and MCM LEDs will blink on and off continuously to indicate normal operation. Check that the LEDs illuminate in green, and that the alarm does not sound (refer to section 4.1 on page 49). The alarm relay must have changed to the No Alarm condition by now. 32 AIS AIMS MIV Manual Technical Description 3. TECHNICAL DESCRIPTION 3.1. AIS unit Overview Each AIS unit consist of:
Two AIS radio receivers (RCM1 and RCM2) One Digital Selective Calling radio receiver (RCM3) A Radio Frequency Module (RFM) A Power Amplifier Module (PA) A Modulator Module (MOD) A Power Supply Module (PSM) A Main Controller Module (MCM) A Serial Communications Module (SCM) A Navigation Module with GPS and (optional) Differential Beacon Receiver A Motherboard A Connector Panel Module, A Display Module. Figure 13: AIS unit Block Schematic AIS 33 Installation AIMS MIV Manual 3.2. System Modes of Operation 3.2.1. Mobile Station In this mode, the AIS unit automatically sends out position reports at intervals determined by the ships navigational status and speed. It can send/receive text and binary messages to/from other AIS units and operates on the AIS and DSC frequencies. 3.3. Serial Communications 3.3.1. Presentation, Pilot and KDU ports These ports represent 3 different types of display systems that can be used for displaying AIS target information. The information transmitted by the AIS to external interfaces, will be available on each of these ports. The roles of the three are as follows:
Presentation port (RS422 or RS232 ports): Mainly used for connection to display systems onboard the vessel, such as ECDIS or ECS type systems. Its also used in the process of configuring the AIS unit. Pilot port (RS422 only): An additional port reserved for use by pilots. This can also be used to configure the AIS unit. KDU port (RS422 only): This port is dedicated for connection of a Keyboard Display Unit (AIMS K1), as dictated by the AIS specifications. This port can be used to configure the AIS unit. Configuration of the AIS unit will require the use of passwords to unlock certain areas for configuration. The correct password will only unlock the specified area for 10 seconds, after which it will return to the locked state. NOTE:
All the password values are set to 00000 upon release from the factory. They must be set to other values by the installer. The following is a table of all the international and proprietary sentences that you can expect to send to and receive from these 3 ports. Additional information on these messages can be found on the MDS website. Message header Message description Reaction of the system Message direction International Sentences Voyage static data
$--VSD 34 Type of ship and cargo Maximum present draught Persons on board Destination ETA Navigational status Regional application flags Re-program configuration. Send updated VDL Message 5 and generate VDO message. Input and Output on Query AIS AIMS MIV Manual Technical Description Message header Message description Reaction of the system Message direction
$--SSD Ship static data Ships name Call sign External GPS source antenna position DTE connected flag SEE ALSO $PMDSSSD for internal GPS source antenna position
!--ABM Addressed Binary Message
!--BBM Broadcast Binary Message
$--AIR
$--ACK
$--ACS Interrogation message for mobile stations AIS acknowledge message Channel Management Information source
$--ACA Channel management message Re-program configuration Send updated VDL Message 5 and generate VDO message Input Output on Query Send either VDL message 6 or 12, depending on type requested Send either VDL message 8 or 14, depending on type requested Send VDL message 15
$AIABK
!AIVDO
$AIALR
$AITXT
!AIVDM
$--AIQ Addressed binary VDL acknowledgement Output VDL messages broadcast by local station Output every one second Alarm status Sensor and alarm status Output VDL messages received by local station System information request message Proprietary Sentences Input Input Input Input Output Input Output on region change Output Output Output Output Output Input Output Input / Output Input / Output
$PMDSACK Proprietary acknowledge message
$PMDSCFI Program IMO number
$PMDSCFM Program MMSI number
$PMDSKDU Input by KDU to indicate it is present every 10 sec. Used by AIS unit to automatically set the DTE flag in ship static data if so configured Input
$PMDSLED Input to the AIS unit to adjust LED brightness on display panel. AIS unit adjust LED brightness to the value in message
$PMDSLRC Configure Long-range response.
$PMDSLRM Long range manual response.
$PMDSLRP Long range poll notification. Initiated from AIS Unit
$PMDSMOD
$PMDSPRP Range, model and serial number request Send in response to RQS Output by AIS unit in response to
$PMDSPWD. Output only message, cannot be queried for Input / Output Input / Output Input Output Output Output AIS 35 Installation AIMS MIV Manual Message header Message description Reaction of the system Message direction
$PMDSPUP Output by AIS unit after power up Automatically output after power up
$PMDSPWD Input into AIS unit to open security system or update passwords AIS unit responds with
$PMDSPRP message Output Input
$PMDSRQS
$PMDSSEN System information request message More information on retrieval of the security log in section 4.5. Requested information via the PI Input Output on query by the AIS unit to indicate the current sensors in use, also sent out on change of used sensors. An external unit queries for this message. Also output when change of sensors in use occur. Output
$PMDSSLI Security log information Sent on request by $PMDSRQS Output
$PMDSSMC
$PMDSSSD
$PMDSTST
$PMDSVDL Static Main Controller Module Configuration Ship static data containing the internal GPSs antenna position Input / Output Input / Output Input into the AIS unit to switch on/off output of sensor data Unit output all sensor data on PI port. Input Used to program default channel parameters
$PMDSVER Output on request, module software version and serial numbers
$PMDSZDA Output current time and date to KDU When input, send proprietary ACK Output one message per module with the appropriate information Automatically output by AIS unit every 1 minute during second 0 or when polled for. Input / Output Output Output Table 1: Presentation Interface Messages During commissioning of the AIS unit, the unit will need to be configured with the ships MMSI and IMO numbers, static and voyage information and other related data. This is done via the AIMS Utility software or the Keyboard Display Unit (KDU). Only a reduced number of parameters can be changed via the KDU. Refer to the KDU and Utility Software manuals for this information. A number of these messages are proprietary see Table 1, for a list of all the messages. For the output drive capability and input load see Section 1.2.12. The block diagrams for the input/output circuits can be found in Figure 17 and Figure 18 on page 58. The security information can be accessed using the AIMS Utility software supplied with every unit. Please see the AIMS Utility documentation for more information. The security log can also be retrieved using a text terminal. Refer to section 4.5 for more details. If you do not have this software please contact MDS, your local MDS agent or see our website. The ship type, as found in the $--VSD message, must be set according to the following table:
Identifiers to be used by ships to report their type Identifier No. 36 Special craft AIS AIMS MIV Manual Technical Description 50 51 52 53 54 55 56 57 58 59 Pilot vessel Search and rescue vessels Tugs Port tenders Vessels with anti-pollution facilities or equipment Law enforcement vessels Spare for assignments to local vessels Spare for assignments to local vessels Medical transports (as defined in the 1949 Geneva Conventions and Additional Protocols) Ships according to Resolution No 18 (Mob-83) Other ships First digit (*) 1 - reserved for future use 2 - WIG Second digit (*) First digit (*) Second digit (*) 0 - All ships of this type 1 - Carrying DG, HS, or MP IMO hazard or pollutant category A
0 - Fishing 1 - Towing 3 - see right column 2 - Carrying DG, HS, or MP IMO hazard or pollutant category B 3 - Vessel 2 - Towing and length of the tow exceeds 200 m or breadth exceeds 25 m 4 - HSC 5 - see above 3 - Carrying DG, HS, or MP IMO hazard or pollutant category C 4 - Carrying DG, HS, or MP IMO hazard or pollutant category D
5 - reserved for future use 6 - reserved for future use 7 - reserved for future use 8 - reserved for future use 9 - No additional information 6 - Passenger ships 7 - Cargo ships 8 - Tanker(s) 9 - Other types of ship NOTES:
3 - Engaged in dredging or underwater operations 4 - Engaged in diving operations 5 - Engaged in military operations 6 - Sailing 7 - Pleasure Craft 8 - reserved for future use 9 - reserved for future use Table 2: Vessel and Cargo type DG:
HS:
MP:
Dangerous Goods Harmful Substances. Marine Pollutants. The identifier should be constructed by selecting the appropriate first and second digits. The following figure describes how the position of the EPFS / GPS antenna must be entered. AIS 37 Installation AIMS MIV Manual A B C D Distance
(m) 0-511 0-511 0-63;
63 = 63 m or greater 0-63;
63 = 63 m or greater A B C D Reference point of reported position not available, but dimensions of ship are available: A = C = 0 and B Neither reference point of reported position nor dimensions of ship available; A = B = C = D = 0 (= default) For use in the message table, A = most significant field, D = least significant field 0 and D 0. Figure 14: Ship dimensions and related fields 3.3.2. Sensor ports (input sentences only) The AIS Unit must be able to accept various NMEA type sentences from a number of sensors onboard the vessel. The following section gives detail on how the AIS unit handles these messages. The AIMS MIV AIS Unit can accept the following messages:
Sensor Message Content Position SOG COG Heading Rate of Turn RAIM Indicator Reference Datum GNS GLL GGA RMC RMC RMC VTG VTG GBS DTM HDT ROT OSD OSD OSD VBW GPS Gyro Rate of turn Radar Log When any of the above messages are used, it must be input to the AIS unit at intervals of 1 second. 3.3.2.1. Position and Time:
For position and time information, the GNS and GLL sentences should be used. Optionally GGA and RMC may be used. All four of these sentences are implemented. The priority for these sensors is tabulated below:
38 AIS AIMS MIV Manual Technical Description Affected data in message 1,2 and 3 y t i r o i r P 1 2 3 4 a 4 b 5 6 Position Sensor Status n o i t i s o P y c a r u c c a g a l f external DGNSS in use (corrected) internal DGNSS in use (corrected over air: msg 17) internal DGNSS in use (corrected; beacon) external GPS in use (uncorrected) external non-GPS EPFS in use internal GNSS in use (uncorrected) no sensor position in use dead reckoning pos. manual pos. input no position 1 1 1 0 0 0 p m a t s e m T i UTC-sec UTC-sec UTC-sec g a l f
I M A R 1/0 1/0 1/0 Position Longitude/Latitude Lat/Lon (external) Lat/Lon (internal) Lat/Lon (internal) UTC-sec 1/0 Lat/Lon (external) UTC-sec 1/0 Lat/Lon (internal) 61 62 63 Lat/Lon (manual) 0 Lat/Lon (dead-reckoning) not available=181/91 NOTE:
* See description of RAIM flag in section RAIM indicator:on page 40 Table 3: Position Sensor Precedence When configuring the position sensor, it must be kept in mind that the Geodatic Datum of the data transmitted by the sensor is switched to WGS84 and the IEC 61162 DTM sentence is configured. The AIS assumes WGS84 format if no DTM message is received. Since AIS is able to process two reference points for the antenna position, one for external and one for internal, both of them must be configured during installation. If more than one external reference point is used, the appropriate information must be transmitted to the AIS unit to adjust the external reference point. This must be done manually via the Presentation Interface, Pilot Port or KDU port. The $--SSD message must be used for the external reference point and the proprietary $PMDSSSD message must be used for the internal reference point. More than one external GPS (NMEA source with ID = GP, GN or GL) may not be connected to the AIS unit at the same time. The AIS unit will not be able to distinguish between them and will assume that they are the same GPS, and use all of them for position fixing. Since their antennas will probably be at different positions on the ship, it will look to other ships as if the ship is jumping around. There may, however, be one GPS source and one non-GPS source connected at the same time. This non-GPS source will be used for positioning according to the priority table, Table 3: Position Sensor Precedence. NOTE:
If a NMEA sentence from a position sensor does not have a checksum, it will be accepted regardless. If, however the checksum is included, it has to be correct for the message to be used. 3.3.2.2. Speed over ground:
The VBW, VTG, OSD or RMC NMEA sentences are implemented. The Sensor precedence will give priority to the external sensor for SOG information. Thereafter it will use the active GPS as source. AIS 39 Installation AIMS MIV Manual 3.3.2.3. Course over ground:
For COG the RMC, VTG or OSD NMEA sentences are implemented. 3.3.2.4. Heading:
The HDT and OSD NMEA sentences are implemented. A gyrocompass providing heading information is a mandatory sensor input to the AIS. A converter unit (e.g. stepper to NMEA) will be needed to connect to the AIS unit if the ships gyrocompass does not provide an IEC 61162 output. Only 1 source for heading (HDT) information may be connected to the AIS unit, e.g. TIHDT or HEHDT. If more than one source is connected it may supply different information, which will cause the heading information to seem erratic. 3.3.2.5. RAIM indicator:
The GBS NMEA sentence is implemented for this. The error fields indicated are checked to be non-zero before RAIM active flag is set. 3.3.2.6. Rate of turn:
Some ships do not carry a Rate-Of-Turn (ROT) Indicator according to IMO A.526. However, if a rate-of-turn indicator is available and it includes an IEC 61162 interface, it shall be connected to the AIS. The ROT sentence is implemented for this. ROT is also calculated from heading when ROT is not available. Refer to Table 4 for an explanation of the precedence used. Affected data in msg 1, 2, 3 y t i r o i r P Position Sensor status 1. Rate of Turn Indicator in use 1 2. other ROT source in use 2 contents of ROT field 0...+ 126 = turning right at up to 708 degrees per minute or higher;
0...- 126 = turning left at up to 708 degrees per minute or higher Values between 0 and 708 degrees/min shall be coded by ROTAIS=4.733 SQRT(ROTsensor) degrees/min where ROTsensor is the Rate of Turn as input by the external Rate of Turn Indicator (TI). Values of 709 degrees per minute and above shall be cut to 708 degrees per minute .
+ 127 = turning right at more than 50/30s (No TI available) 0 = no turn
- 127 = turning Left at more than 50/30s (No TI available) 3. no valid ROT information available 128 (80 hex) indicates no turn information available (default) Table 4: Rate of Turn Sensor Precedence 1 Rate of Turn Indicator according to IMO A.526(13); determined by talker ID 2 i.e. based on HDG information 40 AIS AIMS MIV Manual Technical Description 3.3.3. Service port Only service personnel may use this port. It is used for uploading new software to the unit and for diagnostic purposes. 3.3.4. Long Range port Message header Message description Reaction of the system International Sentences
$--LRF
$--LRI
$AILR1, $AILR2 and
$AILR3 Long range function message Long range interrogation Long range responses 3.4. Alarm messages Message direction Input/Output Input Output The AIS specification has various standard alarm messages that have been defined. The AIS unit use all these alarms as well as a number of proprietary alarms. These alarms and indicators will give the operator a basic idea of what is happening with the unit itself, as well as with the sensors that are connected to the unit. These messages are made available on the following interfaces:
Presentation port, Pilot port, KDU port. When using a Terminal emulator the messages would typically be in the following format:
$AIALR,000000,4,V,V,AIS:Rx channel 2 malfunction*37 The alarm ID and description can be found in the following table. AIS 41 Installation AIMS MIV Manual Alarm's description text l d o h s e r h t n o i t i d n o c m r a A l d e d e e c x e d e d e e c x e t o n n o i t i d n o c m r a A l AIS: Tx malfunction AIS: Antenna VSWR exceeds limit AIS: Rx channel 1 malfunction AIS: Rx channel 2 malfunction AIS: Rx channel 70 malfunction AIS: General failure AIS: MKD connection lost AIS: External EPFS lost AIS: no sensor position in use AIS: no valid SOG information AIS: no valid COG information AIS: Heading lost/invalid AIS: no valid ROT information A A A A A A A A A A A A A V V V V V V V V V V V V V r e i f i t n e d I t x e T r o D I m r a A l 001 002 003 004 005 006 008 025 026 029 030 032 035 Reaction of the system to the alarm condition threshold exceeded Stop transmission Continue operation Stop transmission on affected channel Stop transmission on affected channel Stop transmission on affected channel Stop transmission Continue operation with "DTE" set to "1"
Continue operation (see Table 3: Position Sensor Precedence on page 39) Continue operation (see Table 3: Position Sensor Precedence on page 39) Continue operation using default data Continue operation using default data Continue operation using default data Continue operation using default data Table 5: AIS Standard alarm messages These standard alarm messages does not provide all the information necessary for technical staff to assess the problem, so a proprietary set of Alarms were defined. Proprietary alarm numbers are reported by using the international NMEA alarm message with alarm IDs in the range 51 to 99 as defined below. Alarms description text e g a s s e m t x e t r o m r a A l D I e g a s s e M Reaction of the system AIS: Power supply BIT failure AIS: SCM BIT failure ALR ALR 51 52 Stop transmission Stop transmission 42 AIS AIMS MIV Manual Technical Description Alarms description text AIS: MCM BIT failure AIS: RCMx GMSK modem faulty AIS: RCMx FSK modem faulty AIS: RCMx correlator faulty AIS: RCMx Lock detect 1 faulty AIS: RCMx Lock detect 2 faulty AIS: RCMx modem in wrong slot AIS: RCMx slot clock absent AIS: RCMx code checksum failed AIS: TCM GMSK modem faulty AIS: TCM FSK modem faulty AIS: TCM PA is shut down AIS: TCM lock detect 2 faulty AIS: TCM forward power over threshold AIS: TCM reflected power over threshold AIS: TCM PA temperature shutdown AIS: TCM PA temperature forced low power AIS: TCM slot clock absent AIS: TCM code checksum failed e g a s s e m t x e t r o m r a A l ALR TXT TXT TXT TXT TXT TXT TXT TXT TXT TXT TXT TXT TXT TXT TXT TXT TXT TXT D I e g a s s e M 53 60 61 62 63 64 65 66 67 76 77 78 79 80 81 82 83 84 86 Reaction of the system Stop transmission Stop transmission on this channel Stop transmission on this channel Stop transmission on this channel Stop transmission on this channel Stop transmission on this channel Stop transmission on this channel Stop transmission on this channel Stop transmission on this channel Stop transmission Stop transmission Stop transmission Stop transmission Continue operation Continue operation Stop transmission Continue operation Stop transmission Stop transmission Table 6: Proprietary alarm definitions NOTES:
For alarm numbers 60 to 67 valid values for RCMx are x=1 to x=4. When a message is output for alarm 60 to 67, the text string will indicate from which RCM the alarm originated. I.e. an alarm for RCM 1 will show the alarm string AIS: RCM1 GMSK modem faulty. These text string are output to give additional information on ALR ids 003 to 005. Text id 83 is output by itself cause no ALR message. Text messages 80 and 81 above are output together with ALR 002. Text messages 76 to 79, 82, 84 and 86 are output as additional info with ALR 001. On alarm event - an ALR sentence will be output with 'Alarm condition' set to 'A' and 'Alarm ack state'
set to 'V' indicating alarm activated - not acknowledged. When the ACK message is used to acknowledge and alarm (with corresponding ID) the alarm output every 30 sec will change to 'Alarm condition' set to 'A' and 'Alarm ack state' set to 'A' indicating alarm and acknowledged. When the alarm condition is cleared an ALR sentence will be output once with 'Alarm condition' set to 'V' to AIS 43 Installation AIMS MIV Manual indicate that the alarm condition is cleared. The 'Alarm acknowledge state' will be set to it's current condition and can be ignored. All text messages in the table above will be output once, when the alarm activates they will not be output every 30 seconds with the alarm. 3.5. Status messages Alarms description text e g a s s e m t x e t r o m r a A l System status Channel settings TXT TXT D I e g a s s e M 90 91 Reaction of the system Outputs system status Outputs VDL channel settings Table 7: Proprietary status messages These messages are output to the Presentation ports once every 10 seconds. The information on these messages can be requested from MDS or refer to the MDS website. 3.6. AIS Receiver Module (RCM 1 or 2) The AIS receiver modules receive the VDL transmissions from other AIS units. These modules form an integral and important part of the operation of an AIS unit. It is therefore important that these units perform self-testing procedures in order to ensure proper functionality. An alarm message relating to the specific receiver will be generated as follows:
Receiver 1 failed ALR with ID 3 Receiver 2 failed ALR with ID 4 Receiver channel 70 failed ALR with ID 5 For more detail about the additional information that is supplied also see Table 6 on page 43. 3.7. Usage of NMEA sentences The following table describes the NMEA sentences as implemented in the AIMS MIV unit:
Message Header Message Field Not Used /
Used Description
$--DTM, ccc, a, x.x, a, x.x, a, x.x, ccc, Datum Reference 44 AIS AIMS MIV Manual Technical Description Message Header Message Field ccc, Not Used /
Used Not Used Description Local datum code WGS84=W84 WGS72=W72 SGS85=S85 PE90=P90 User defined=999 IHO datum code a, x.x,a, x.x,a, x.x, ccc, Not Used Not Used Not Used Not Used Used Local datum subdivision code Latitude offset (minutes) Longitude offset (minutes) Altitude offset (meters) Reference datum code WGS84=W84 WGS72=W72 SGS85=S85 PE90=P90
$--GNS, hhmmss.ss, llll.ll, a, yyyyy.yy, a, c--c, xx, x.x, x.x, x.x, x.x, x.x, GNSS Fix Data hhmmss.ss Not Used llll.ll,a yyyyy.yy,a c--c, xx, xx, x.x, x.x, x.x, x.x Used Used Used Not Used Not Used Not Used Not Used Not Used Not Used UTC Latitude Longitude Mode indicator Nr of satellites in use HDOP Antenna altitude (meters) Geoidal separation (meters) Age of differential data Diff reference station ID
$--GLL, lll.ll, a, yyyyy, a, hhmmss.ss, A, a, Used Used Used Geographic Position - Latitude / Longitude Latitude Longitude UTC of position llll.ll,a yyyyy,yy,a hhmmss.ss
, A, a, Used Used Status Mode AIS 45 Installation AIMS MIV Manual Message Header Message Field Not Used /
Used Description
$--GGA, hhmmss.ss, llll.ll, a, yyyyy.yy, a, x, xx, x.x, x.x, M, x.x, M, x.x, xxxx Global Positioning System Fix Data hhmmss.ss Used Used llll.ll,a Used yyyyy.yy,a x, Used Not Used xx Not Used x.x, x.x,M, Not Used Not Used x.x,M, Not Used x.x, xxxx, Not Used UTC of position Latitude Longitude GPS quality indicator Number of satellites in use Horizontal dilution of precision Altitude (meters) Geoidal separation (meters) Age of differential GPS data Differential reference station ID
$--RMC, hhmmss.ss, A, llll.ll, a, yyyyy, a, x.x, x.x, xxxxxx, x.x, a, a, Recommended Minimum Specific GNSS Data hhmmss.ss
, A, llll.ll,a, yyyyy.yy,a, x.x, x.x, xxxxxx, x.x,a, a, Used UTC (used to sync 1PPS time - odd even second) Used Used Used Used Used Used Not Used Used status Latitude Longitude Speed Over Ground Course Over Ground Date ddmmyy Magnetic variation (degrees) Mode indicator 46 AIS AIMS MIV Manual Technical Description Message Header Message Field Not Used /
Used Description
$--VBW, x.x, x.x, A, x.x, x.x, A, x.x, A, x.x, A, x.x, x.x, A, x.x, x.x, A, x.x, A, x.x, A, Not Used Not Used Not Used Used Used Used Not Used Not Used Not Used Not Used
$--VTG x.x, T, x.x, M, x.x, N, x.x, K, a, x.x,T, x.x,M, x.x,N, x.x,K, a, Used Not Used Used Used Used
$--OSD, x.x, A, x.x, a, x.x, a, x.x, x.x, a, x.x, A, x.x, a, x.x, a, x.x, x.x, a, Used Used Used Used Used Used Not Used Not Used Used Dual Ground/Water Speed Longitudinal water speed (knots) Transverse water speed (knots) Status, water speed Longitudinal ground speed (knots) Transverse ground speed (knots) Status, ground speed Stern transverse water speed (knots) Status stern water speed Stern transverse ground speed (knots) Status stern ground speed Course Over Ground and Ground Speed Course over ground, degrees True Course over ground, degrees Magnetic Speed over ground (knots) Speed over ground (km/hr) Mode indicator Own Ship Data Heading, degrees True Heading status Vessel course, degrees True Course reference Vessel speed Speed reference Vessel set, degrees True Vessel drift (speed) Speed units, K/N/S
$--HDT, x.x, T x.x,T Used Heading, True Heading, degrees True AIS 47 Installation AIMS MIV Manual Message Header Message Field Not Used /
Used Description
$--GBS, hhmmss.ss, x.x, x.x, x.x, xx, x.x, x.x, x.x, Global Satellite Fault Detection hhmmss.ss
, x.x, x.x, x.x, xx, x.x, x.x, x.x, x.x, A, Not Used Used Used Not Used Not Used Not Used Not Used Not Used Used Used UTC time of GGA or GNS fix associated with this sentence Expected error in Latitude Expected error in Longitude Expected error in altitude ID nimber of most likely failed satellite Probability of missed detection of most likely failed satellite Estimate of bias in meters of most likely failed satellite Standard deviation of bias estimate Rate Of Turn Rate of turn Status Table 8 : NMEA message usage
$--ROT,x.x,A 48 AIS AIMS MIV Manual Service 4. SERVICE 4.1. Explanation of the LEDs The status LEDs are located on the front panel of the AIS unit. This gives the operator or user a basic indication of the status of each of the modules within the unit. Use the following table as a guide to understanding what each LED indication means. RX TX BASE MODE REPEATER MODE MAIN CONTR. AIS RX1 DSC RX3 POSITION FIX ANT MOBILE MODE SERIAL CONTR. POWER SUPPLY Figure 7: AIS unit Front Panel LEDs AIS RX2 RX4 TRANSM. DIFF. FIX LED RX TX Base Mode Mobile Mode Function Indicators Explanation This LED flashes Green when a message is received This LED flashes Green when a message is transmitted This LED is illuminated when the AIS unit is operated as a base unit This LED is illuminated when the AIS unit is operated as a mobile unit, that is, on a ship Repeater Mode This LED is illuminated when the AIS unit is operated as a repeater unit System Indicators LED Description Normal operation Fault condition Power Supply Main Contr Serial Contr AIS RX1 AIS RX2 DSC RX3 RX4 (*) TRANSM ANT This LED is illuminated when the AIS unit is switched on and Power Supply is working. Main Controller Serial Controller AIS Receiver number 1 AIS Receiver number 2 DSC Receiver Flashing green Flashing green Fixed green Fixed green Fixed green Optional AIS Receiver Fixed green (*) Transmitter Antenna (VSWR indicator) Fixed green Fixed green Fixed red Fixed red Fixed red Fixed red Fixed red Fixed red (*) Fixed red Fixed red POSITION FIX Internal GPS receiver Fixed green while in GPS lock Fixed red when no GPS lock DIFF. FIX (*) NOTES:
AIS Optional Internal DBR receiver Fixed green (*) Fixed red (*) Table 9: LED Operation
When this option is not fitted, the LED will be off. 49 Service AIMS MIV Manual 4.2. System Indicators (additional information) 4.2.1. DIFF. FIX If the AIS unit is functioning with differentially corrected data from an internal or external sourse, this LED will be green, otherwise it will be red. 4.2.2. Receiver failure The AIS unit can detect a receiver failure using the methods described in section 3.6 on page 44. Once the AIS unit has determined that there has been a receiver failure, it will raise an alarm. The type of alarm will relate to the specific receiver that has failed (please see section 3.4 on page 41 for more detail of the various alarm messages. 4.3. Alarm relay The alarm output is a double throw relay contact. This can be used to activate an external alarm when the unit malfunctions. The alarm can be de-activated by user intervention on the Keyboard Display Unit or Primary Display Unit. The alarm will sound if there is:
no GPS lock, a faulty module, a faulty antenna, a power failure, no communication with KDU. loss of sensor data, See Table 5 in Section 3.4 on page 41 for more detail of the various alarm messages. 4.4. Troubleshooting IMPORTANT NOTE:
The unit should only be opened by qualified personnel. When a fault occurs, switch off the unit and have the faulty module replaced by a suitably qualified technician. 4.5. Security log retreival The AIMS MIV unit keeps track of how often the unit has been switched off for more than10 minutes. This log can be retrieved from the AIS unit using a text terminal or the AIMS utility software. To retrieve the message using a text terminal, a serial cable must be connected to the Presentation , KDU or Pilot Port. The following message is sent into the port to activate the retrieval:
$PMDSRQS,5000,MDSSLI 50 AIS AIMS MIV Manual Service There must be a <cr><lf> at the end of the line above. (Entered by pressing ENTER on a PC) The output data from the port will look like this:
$PMDSSLI,5000,02,11,05,111821,02,11,05,133644,2559.8425,S,02803.6809,E*50
$PMDSSLI,5000,02,11,08,094409,02,11,08,100058,2559.8446,S,02803.6901,E*5D
$PMDSSLI,5000,02,11,08,133327,02,11,11,121708,5330.7792,N,01000.9818,E*4B
$PMDSSLI,5000,02,11,14,112833,02,11,14,115441,2559.8464,S,02803.6901,E*5F
$PMDSSLI,5000,02,11,18,100628,02,11,18,120032,9100.0000,N,18100.0000,E*41
$PMDSSLI,5000,02,11,22,093855,02,11,22,095852,2550.7792,S,02814.9818,E*5C
$PMDSSLI,5000,02,11,22,150124,02,11,26,123426,2550.7792,S,02814.9818,E*5A There is one line for every entry in the security log. As an example, the first line is explained below:
5000 02 11 05 111821 02 11 05 133644 2559.8425,S - Switch off Latitude if available for this entry 02803.6809.E - Switch off Longitude if available for this entry
- Message sequence number
- Number of years since the year 2000 at power off for this data entry
- Month at power off for this entry
- Day at power off for this entry
- UTC time at power off for this data entry
- Years since year 2000 at power on for this entry
- Month at power on for this entry
- Day at power on for this entry
- UTC time at power on for this entry AIS 51 Service AIMS MIV Manual 4.6. Replacing the Modules Modules may be replaced by removing the top or bottom cover and unplugging the module from its position after removal of the fixing screws and washers. Figure 15: AIS unit Module Layout (bottom view) Figure 16: AIS unit Module Layout (top view) 52 AIS AIMS MIV Manual Service IMPORTANT NOTICE:
If modules have been changed, please observe the following:
If the MCM has to be replaced, the module will need to be reprogrammed with the ships static, voyage and other configuration data. If the NAV module has to be replaced, there will be a waiting period of up to 30 minutes for the GPS to lock onto the satellites. The SCM and MCM modules can only be replaced if the replacement modules have software preloaded, otherwise new software must be uploaded via the Service Port using the AMDT AIS unit Flash Utility. AIS 53 Appendices AIMS MIV Manual 5. APPENDICES 5.1. Abbreviations The following is a list of abbreviations use in this technical manual:
1pps ACK 1 pulse per second Acknowledge AIMS Automatic Identification and Data Management System AIS AIS1 AIS2 ANT BER BIT BS Automatic Identification System Automatic Identification System channel 1 (161.975 MHz) Automatic Identification System channel 2 (162.025 MHz) Antenna Bit Error Rate Built In Self Test Base Station BSM Base Station Mode BT Bandwidth Time product COG Course over Ground DBR DSC DTE Differential Beacon Receiver Digital Selective-Calling Data Terminal Equipment ECDIS Electronic Chart Display and Information System ECS Electronic Chart System EPFS Electronic Position Fixing System ETA GPS Estimated Time of Arrival Global Positioning System HDLC High-level Data Link Control HSC High Speed Craft IEC IO ISO International Electro-technical Commission Input-Output International Organisation for Standardisation 54 AIS AIMS MIV Manual Appendices ITU International Telecommunication Union KDU Keyboard Display Unit LR Long Range MCM Main Controller Module MDS Marine Data Systems MMSI Maritime Mobile Service Identities NU PA PC Not Used Power Amplifier Personal Computer PER Packet Error Rate PI Presentation Interface PSM RCM Power Supply Module Receive Channel Module RF Radio Frequency RFM ROT Radio Frequency Module Rate of Turn RX Receive SCM SOG TCM Serial Communications Module Speed over Ground Transmit Channel Module TDMA Time Division Multiple Access TX UTC VDL VHF Transmit Coordinated Universal Time VHF Data Link Very High Frequency VSWR Voltage Standing Wave Ratio AIS 55 Appendices AIMS MIV Manual 5.2. Reference Documents 5.2.1. List of standards and specifications:
Document Number Title IEC 61162-1 IEC 61162-2 Maritime Navigation and Radio Communication Equipment and Systems - Digital Interfaces: Part 1 - Single Talker and Multiple Listeners. Maritime Navigation and Radio Communication Equipment and Systems - Digital Interfaces: Part 2 - Single Talker and Multiple Listeners High Speed Transmission. IEC 61993-2 IS Universal Shipborne Automatic Identification System (AIS). ISO/IEC 3309, 1993 Information Technology telecommunication and informational exchange between systems - HDLC procedures - Frame Structure. ITU-R M.1084-2 ITU-R M.1371-1 ITU-R M.493 ITU-R M.823-2 ITU-R M.825-3 ITU Manual IEC 61108-1 ISO 9000-3 IEC/EN 60945 Interim solutions for improved efficiency in the use of Band 156-174 MH by stations in the Maritime Mobile Service. Technical characteristics for a universal ship-borne automatic identification system using time division multiple access in the maritime mobile band. Digital Selective Calling (DSC) system for use in the Maritime Mobile Service. Technical characteristics of differential transmissions for global navigation satellite systems from maritime radio beacons in the frequency band 283.5 - 315 kHz in region 1 and 285-325 kHz in regions 2 and 3. Characteristics of a transponder system using DSC techniques for use with vessel traffic services and ship-to-ship identification. ITU Manual for use by the Maritime mobile and Maritime Mobile-Satellite Services. Global navigation satellite systems (GNSS) - Part 1: Global positioning system
(GPS) - Receiver equipment - Performance standards, methods of testing and required test results. Guidelines for the development, supply, installation and maintenance of computer software. Maritime Navigation and Radiocommunication equipment and systems General requirements-methods of testing and required results 56 AIS AIMS MIV Manual Appendices 5.2.2. List of Related Software and Manuals:
Module Description Part number AIMS Utility Software for Windows A Windows based utility for configuring and testing the AIMS range of products. Various levels of user access available. AIMS Utility Software User Manual User Manual AIMS Utility for PalmOS A PalmOS based utility for configuring the AIMS range of products AIMS Utility for PocketPC 2002 A PocketPC based utility for configuring the AIMS range of products AIMS Utility for PDA User Manual User Manual AIMS K1 User Manual A Keyboard Display Unit requirements as laid out by the IMO that conforms to the AMDT AIS Unit Flash Utility A utility for upgrading the AIMS MIV unit software AIS 57 Appendices AIMS MIV Manual 5.3. AIMS Serial interface Listener and Talker circuit diagrams This section will give a basic circuit diagram of the RS422 input and output circuits of the AIS Unit. Isolating power supply To internal electronics Opto isolator Common
(isolated) A B C Protec-
tion Listener Figure 17. RS422 General Listener circuit diagram VCC SHIELD A B C Common Talker Figure 18. RS422 General Talker circuit diagram 58 AIS NOTES:
AIS 59 580 Kyalami Boulevard Kyalami Business Park Kyalami Midrand South Africa Tel: +27 11 549 1800 www.marinedata.co.za email: support@marinedata.co.za
| frequency | equipment class | purpose | ||
|---|---|---|---|---|
| 1 | 2003-03-25 | 156.525 ~ 156.525 | AIS - Automatic Identification Systems | Original Equipment |
| app s | Applicant Information | |||||
|---|---|---|---|---|---|---|
| 1 | Effective |
2003-03-25
|
||||
| 1 | Applicant's complete, legal business name |
Marine Data Systems
|
||||
| 1 | FCC Registration Number (FRN) |
0008494486
|
||||
| 1 | Physical Address |
5800 Kyalami Blvd.
|
||||
| 1 |
Kyalami, Midrand, N/A 1685
|
|||||
| 1 |
South Africa
|
|||||
| app s | TCB Information | |||||
| n/a | ||||||
| app s | FCC ID | |||||
| 1 | Grantee Code |
QXD
|
||||
| 1 | Equipment Product Code |
MIV30
|
||||
| app s | Person at the applicant's address to receive grant or for contact | |||||
| 1 | Name |
A****** V****
|
||||
| 1 | Title |
Technical Executive
|
||||
| 1 | Telephone Number |
27011********
|
||||
| 1 | Fax Number |
27011********
|
||||
| 1 |
b******@marinedata.co.za
|
|||||
| app s | Technical Contact | |||||
| 1 | Firm Name |
Wayne Langston, Inc.
|
||||
| 1 | Name |
W**** L********
|
||||
| 1 | Physical Address |
P.O. Box 1377
|
||||
| 1 |
League City, Texas 77574-1377
|
|||||
| 1 |
United States
|
|||||
| 1 | Telephone Number |
281-3********
|
||||
| 1 | Fax Number |
281-3********
|
||||
| 1 |
l******@msn.com
|
|||||
| app s | Non Technical Contact | |||||
| n/a | ||||||
| app s | Confidentiality (long or short term) | |||||
| 1 | Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | Yes | ||||
| 1 | Long-Term Confidentiality Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | No | ||||
| if no date is supplied, the release date will be set to 45 calendar days past the date of grant. | ||||||
| app s | Cognitive Radio & Software Defined Radio, Class, etc | |||||
| 1 | Is this application for software defined/cognitive radio authorization? | No | ||||
| 1 | Equipment Class | AIS - Automatic Identification Systems | ||||
| 1 | Description of product as it is marketed: (NOTE: This text will appear below the equipment class on the grant) | Shipboum Automatic Identification System (AIS) | ||||
| 1 | Related OET KnowledgeDataBase Inquiry: Is there a KDB inquiry associated with this application? | No | ||||
| 1 | Modular Equipment Type | Does not apply | ||||
| 1 | Purpose / Application is for | Original Equipment | ||||
| 1 | Composite Equipment: Is the equipment in this application a composite device subject to an additional equipment authorization? | No | ||||
| 1 | Related Equipment: Is the equipment in this application part of a system that operates with, or is marketed with, another device that requires an equipment authorization? | No | ||||
| 1 | Grant Comments | The device operates on AIS 1 - Channel 87 (161.975 MHz) and AIS 2 - Channel 88B (162.025 MHz) with remote frequency assignment capability. This device also has DSC capability. | ||||
| 1 | Is there an equipment authorization waiver associated with this application? | No | ||||
| 1 | If there is an equipment authorization waiver associated with this application, has the associated waiver been approved and all information uploaded? | No | ||||
| app s | Test Firm Name and Contact Information | |||||
| 1 | Firm Name |
Wayne Langston, Inc.
|
||||
| 1 | Name |
W******** L****
|
||||
| 1 | Telephone Number |
281-3********
|
||||
| 1 | Fax Number |
281-3********
|
||||
| 1 |
l******@msn.com
|
|||||
| Equipment Specifications | |||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Line | Rule Parts | Grant Notes | Lower Frequency | Upper Frequency | Power Output | Tolerance | Emission Designator | Microprocessor Number | |||||||||||||||||||||||||||||||||
| 1 | 1 | 8 | 156 | 163 | 12.5 | 150 Hz | 15K0GXW | 25 kHz Channels | |||||||||||||||||||||||||||||||||
| 1 | 2 | 8 | 156 | 163 | 12.5 | 150 Hz | 11K5GXW | 12.5 kHz Channels | |||||||||||||||||||||||||||||||||
| 1 | 3 | 8 | 156.525 | 156.525 | 12.5 | 150 Hz | 14K2G2B | DSC | |||||||||||||||||||||||||||||||||
some individual PII (Personally Identifiable Information) available on the public forms may be redacted, original source may include additional details
This product uses the FCC Data API but is not endorsed or certified by the FCC