TECHNICAL MANUAL Tron AIS TR-8000 AIS Class A transponder www.jotron.
EC Declaration of Conformity, available at www.jotron.com Table of Contents 1 Revision History.................................................................................................................... 1-4 2 SPECIFICATIONS ................................................................................................................... 2-5 2.1 Transponder unit.........................................................................................................................................
4.2 Output..............................................................................................................................................................4-25 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 4.2.7 4.2.8 4.2.9 4.2.10 4.2.11 4.2.12 4.2.13 4.2.14 4.2.15 ABK - Addressed and binary broadcast acknowledgement ..............................................................4-25 ACA See “Input “ .....................................................................................................
1 Revision History AMENDMENT NO. INCORP. BY DATE PAGE(S) FIT 12.4.2012 2-8 VERSION 1 B REASON FOR CHANGE Added “IEC60945 Protected” to chapter 2.
2 2.1 SPECIFICATIONS Transponder unit Size: Size with bracket: Weight: Color: Enclosure: Supply voltage: Power consumption: Operating temperature: Storage temperature: Environmental: Compass safe distance: 274 x 204 x 67 mm (319 x 204 x 76 mm) 3.7 Kg Black Aluminium 12-24 VDC +30% / -10% <15W average <50W burst -25°C to +55°C -40°C to +70°C IP56 / IEC60945 exposed Standard Compass: 95cm Steering Compass: 65cm 2.1.
2.1.2 TDMA Transmitter Frequency Error : Frequency Range Channel Switching Time Carrier Power, High power setting : : : Carrier Power, Low power setting : Data transmission bit rate Modulation Spectrum : : Modulation Accuracy test signal 2 : Modulation Accuracy test signal 3 : Maximum Transmission Time Excessive Transmission Failure mode : : Spurious emissions : Transmission output power versus time : < +/- 0.5 kHz under normal conditions (n.c.). < +/- 1.0 kHz under extreme conditions (e.
2.1.4 DSC Receiver Frequency Range Sensitivity : : Ch 70, 156.525 MHz Modulation Error beaviour at high input levels Co-Channel Rejection Adjacent Channel Selectivity : : : : PSK, 1200 Baud. Spurious Response Rejection Intermodulation response, rejection Blocking or desensitisation TR-8000 Technical manual < 20% PER @ –107 dBm (n.c.) < 20% PER @ –101 dBm (e.c.) < 1% PER @ –7 dBm Between –10.0 db and 0 dB.See 61993-2, 5.4.3 < 20% PER @ 70 dB (n.c.) < 20% PER @ 60 dB (e.c.
2.2 Display unit: Size: Size with bracket: Weight: Color: Enclosure: Supply voltage: Power consumption: Operating temperature: Storage temperature: Environmental: Compass safe distance: 2.2.1 192 x 144 x 52 mm (210 x 150 x 84 mm) 1.
2.3 Transmission intervals The transmission intervals are normally as described in Table 1: Transmission intervals. Given certain conditions, as in assigned mode, or when other AIS stations are synchronizing to the unit, the transmission rate might be higher, but the absolute highest rate is once every 2 seconds.
2.4 Interfaces Input sentences Sensor 1, 2 and 3: (External GPS, Gyro and ROT/LOG) External Display, Aux Display/ Pilot Port Output sentences DTM, GBS, GGA, GLL, GNS, HDT*, OSD, RMC, ROT, VBW, VTG, ZDA ABM, ACA, ACK, AIR, AIQ, BBM, EPV, HBT, SPW, SSD, VSD, ABK, ACA, ALR, EPV, HBT, NAK, TRL, TXT, VER, VDM, VDO, LRF, LRI LR1, LR2, LR3, LRF, DTM, GBS, GGA, GLL, GNS, HDT*, OSD, RMC, ROT, VBW, VTG, ZDA, Long Range Port LRF, LRI LR1, LR2, LR3, LRF *) $HCHDT will be rejected. $HEHDT will be accepted.
3 DATA TRANSMISSION 3.1 Data transmission Data is transmitted in serial asynchronous form in accordance with the standards referenced in 2.1 of IEC 61162-1/2. The first bit is a start bit and is followed by data bits, least-significantbit first, as illustrated by figure below. The following parameters are used: - baud rate: 4 800 to 38 400 - data bits: 8 (D7 = 0), - parity: none; - stop bits: 1. D0 D1 Start bit D2 D3 D4 D5 D6 D7 Data bits Stop bit 3.1.
3.1.1.1 Electrical characteristics RS422 interface. Parameter VO Voltage at either bus I/O terminal VID Differential input voltage RL Differential input resistance VIT(+) Positive going input threshold voltage VIT(-) Negative going input threshold voltage Isolation IO Output current Receiver Differential output voltage magnitude IO Output current Driver Test Condition A,B A with respect to B w/jumper Wo/jumper IO = -8mA IO = 8mA 60s IO = 0mA, no load RL = 54Ω RL = 100Ω MIN -15 -15 -200 -8 3 1.
3.1.2.1 Electrical characteristics RS232 Input Resistance Input Voltage Range Input Threshold LOW Input Threshold HIGH Output Resistance Output Voltage Swing Output Short-Circuit Current Min 3 -15 0.8 300 ±5.0 Typ 5 Max 7 15 1.5 1.8 2.4 ±5.4 ±32 ±60 Unit kΩ V V V Ω V mA 3.1.2.2 Display connection The display is interfaced over Ethernet by LAN8187, enabling data from 10 to 100Mbit/s. The circuit is galvanically isolated by a transformer and isolated to ground by 2kV capacitors.
4 DESCRIPTION OF SENTENCE FORMAT The following provides a summary explanation of the approved sentence structure according to IEC 61162: $aaccc, c---c*hh ASCII HEX Description "$" 24 Start of sentence: starting delimiter aaccc "," Address field: alphanumeric characters identifying type of talker, and sentence formatter. The first two characters identify the talker.
4.1 Input 4.1.1 ABM - Addressed Binary and safety related Message Support for ITU-R M.1371 messages 6, 12, 25, 26, 70 and 71 Provides an external application with a means to exchange data using the AIS. !--ABM,x,x,x,xxxxxxxxx,x,x.x,s--s,x*hh Number of fill-bits, 0-5 Encapsulated data ITU-R M.1371 message ID 6, 12, 25, 26, 70, 71 AIS channel for broadcast of the radio message The MMSI of destination AIS unit for the ITU-R M.
4.1.4 AIR - AIS Interrogation Request This sentence supports ITU-R M.1371 message 15. It provides an external application with the means to initiate a request for specific ITU-R M.1371 messages from distant mobile or base AIS stations. $--AIR,xxxxxxxxx,x.x,x,x.x,x,xxxxxxxxx,x.
4.1.7 DTM Datum reference Local geodetic datum and datum offsets from a reference datum $--DTM,W84,a,x.x,a,x.x,a, x.
Property Identifier 0-100 101 Property Meaning Reserved Sensor 1 baud 102 Sensor 2 baud 103 Sensor 3 baud 104 Long Range baud 105 DGNSS baud 106 MMSI 107 108 112 113 IMO Number Long Range configuration Long Range AIS channel 1 Long Range AIS channel 2 Change administrator password Change user password AIS-SART test mode All other values Reserved 109 110 111 Value range 4800, 9600, 14400, 19200, 38400 4800, 9600, 14400, 19200, 38400 4800, 9600, 14400, 19200, 38400 4800, 9600, 14400, 19200,
4.1.9 GBS - GNSS satellite fault detection This message is used to support receiver autonomous integrity monitoring (RAIM). Given that a GNSS receiver is tracking enough satellites to perform integrity checks of the positioning quality of the position solution; a message is needed to report the output of this process to other systems to advise the system user.
4.1.11 GLL - Geographic position - latitude/longitude Latitude and longitude of vessel position, time of position fix and status. $--GLL, llll.ll, a, yyyyy.yy, a, hhmmss.ss, A, a *hh Mode indicator (see Note 1) Status: A = data valid V = data invalid Time of position (UTC) Longitude , E/W Latitude, N/S Note 1: Positioning system Mode indicator: A = Autonomous D = Differential E = Estimated (dead reckoning) M = Manual input S = Simulator N = Data not valid 4.1.
4.1.14 HDT - Heading true IMO Resolutions A.424 and A.821. Actual vessel heading in degrees true produced by any device or system producing true heading $--HDT, x.x, T*hh Heading, degrees true 4.1.15 LRF - Long Range Function This sentence is used in both long-range interrogation requests and long-range interrogation replies.
4.1.17 OSD Own ship data IMO Resolution A.477 and MSC 64(67), Annex 1 and Annex 3. Heading, course, speed, set and drift summary. Useful for, but not limited to radar/ARPA applications. OSD gives the movement vector of the ship based on the sensors and parameters in use. $--OSD, x.x,A,x.x, a,x.x,a,x.x,x.
4.1.19 ROT - Rate of turn IMO Resolution A.526. Rate of turn and direction of turn. $--ROT, x.x, A*hh Status: A = data valid, V = data invalid Rate of turn, °/min, "-" = bow turns to port 4.1.20 SPW - Security password sentence This sentence can be used for authentication. For this purpose the sentence has to be applied before the protected sentence (for example EPV, SSD).
4.1.22 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.
4.1.25 ZDA – Time and date UTC, day, month, year and local time zone. $--ZDA, hhmmss.ss, xx, xx, xxxx, xx, xx*hh Local zone minutes (see Note 1), 00 to +59 Local zone hours (see Note 1), 00 h to ±13 h Year (UTC) Month, 01 to 12 (UTC) Day, 01 to 31 (UTC) UTC Note 1: Local time zone is the magnitude of hours plus the magnitude of minutes added, with the sign of local zone hours, to local time to obtain UTC.
4.2.4 EPV See “Input “ 4.2.5 HBT See “Input “ 4.2.6 LRF See “Input “ 4.2.7 LR1 - Long-range Reply with destination for function request "A" The LR1-sentence identifies the destination for the reply and contains the information requested by the "A" function identification character.
4.2.10 NAK – Negative acknowledgement In general, the NAK sentence is used when a reply to a query sentence cannot be provided, or when a command sentence is not accepted. The NAK sentence reply should be generated within 1 s. $--NAK,cc,ccc,c--c,x.
4.2.12 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 Text message, ASCII, up to 61 characters Text identifier, 01-99 Message number, 01 to 99 Total number of messages, 01 to 99 4.2.13 VDM - 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.
4.2.15 VER – Version This sentence is used to provide identification and version information about a device. This sentence is produced as reply to a query sentence.
5 Abbreviations and Definitions ACK Acknowledge AIS Automatic Identification System - A shipborne broadcast transponder system in which ships continually transmit their position, course, speed and other data to other nearby ships and shoreline authorities on a common VHF radio channel. AIS-SART Automatic Identification System-Search And Rescue Transponder AtoN Aid to Navigation BAUD Transmission rate unit of measurement for binary coded data (bit per second).
HDG Heading - The direction, in which the vessel is pointed, expressed as angular distance from north clockwise through 360 degrees. HEADING should not be confused with COURSE. The HEADING is constantly changing as the vessel yaws back and forth across the course due to the effects of sea, wind, and steering error.
RNG Range RX RX is the telegraph and radio abbreviation for “receive” SAR Search And Rescue S/N Signal-to-Noise ratio (SIN). Quantitative relationship between the useful and non-useful part of the received satellite signal. A high SIN indicates a good receiving condition. SOG Speed Over Ground – Speed in relation to the seabed.
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