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Inmarsat B

9905

ABBREVIATIONS

ADE

Above deck equipment

AGC

Automatic gain control

Amplitude modulation

APC

Adaptive predictive coding

BDE

Below deck equipment

BJT

Bipolar junction transistor

CAN

Controller area network

CASC

Control and signalling component

CSP

Control and signalling processor

Control unit

DMB

Dead man's button

FSK

Frequency shift keying

HPA

High power amplifier

Intermediate frequency

LES

Land earth station

LNA

Low noise amplifier

Local oscillator

MMIC

Monolithic microwave integrated circuit

NCSC

Network co-ordinating station common (channel)

OCXO

Oven controlled crystal oscillator

PAX

Phone and fax

PLL

Phase locked loop

SES

Ship earth station

SMI

Switch mode power supply and interconnection

SMPS

Switch mode power supply

SPS

Signal path and synthesiser

Signal unit

TSP

Tracking and stabilisation processor

VCO

Voltage controlled oscillator

VDP

Voice and data processor

Содержание Inmarsat B

Страница 1: ...SAILOR Inmarsat B Workshop Manual W4400GB0 ...

Страница 2: ...Inmarsat B Workshop Manual 9905 ...

Страница 3: ...t and the accompanying documentation is disclaimed The information in this manual is furnished for informational use only is subject to change without notice may contain errors or inaccuracies and represents no commitment whatsoever This agreement is governed by the laws of Denmark Doc no W4400GB0 Issue D 9936 ...

Страница 4: ... BOX 4 2 4 4 H4396 T CONNECTION BOX 4 2 5 DISASSEMBLING CONNECTORS MODULE AND SOFTWARE LOCATION 5 1 5 1 ANTENNA UNIT 5 1 5 2 TRANSCEIVER UNIT 5 17 5 3 HANDSET 5 25 5 4 CONTROL UNIT 5 25 6 SERVICE INTERFACE 6 1 6 1 ADE 6 2 6 2 ALARM 6 4 6 3 BOOK 6 4 6 4 BUTTONS 6 5 6 5 CAN 6 5 6 6 CASC 6 5 6 7 COURSE 6 7 6 8 CU 6 7 6 9 DATE 6 9 6 10 EXIT 6 10 6 11 GYRO 6 10 6 12 HELP 6 10 6 13 LES 6 11 6 14 LOG 6 1...

Страница 5: ...NMEA GYRO INPUT 7 5 7 16 PRINTER ON LINE 7 6 7 17 HEADING KNOWN 7 6 7 18 POSITION KNOWN 7 6 7 19 OCEAN REGION VALID 7 7 7 20 CONTROL UNIT FOUND 7 7 7 21 SCANBUS DATA TRANSMISSION 7 7 7 22 SCANBUS DATA RECEPTION 7 7 7 23 TU BUS 7 8 7 24 MODEM FOUND 7 8 7 25 MODEM ACTIVE 7 8 7 26 MODEM RX SU RATIO 7 9 7 27 SPS FOUND 7 9 7 28 SPS RX IF 7 9 7 29 SPS RX FILTER 7 9 7 30 SPS TX IF 7 10 7 31 SPS TX FILTER...

Страница 6: ...DP CLOCK DETECTED 7 17 7 53 PAX FOUND 7 18 7 54 PAX RUNNING 7 18 7 55 PAX PHONE 1 ACTIVITY 7 18 7 56 PAX PHONE 2 ACTIVITY 7 19 7 57 PAX PHONE 1 PABX SETTING 7 19 7 58 PAX PHONE 2 PABX SETTING 7 19 7 59 PAX PHONE 1 LINE NOISE 7 20 7 60 PAX PHONE 2 LINE NOISE 7 20 7 61 SPS OCXO WARM 7 20 7 62 ADE FAILED 7 21 7 63 ADE CONTROL INPUT 7 21 7 64 ADE CONTROL OUTPUT 7 21 8 PERFORMANCE CHECK AFTER REPAIR 8 ...

Страница 7: ...CONTENTS 1 INTRODUCTION 1 1 1 1 SYSTEM COMPONENTS 1 2 1 2 TECHNICAL DATA 1 2 9849 Inmarsat B ...

Страница 8: ...ransceiver unit Chapter 3 is a technical description of the modules of which the antenna and transceiver unit consist Chapter 4 is a technical description of the accessories Chapter 5 concerns disassembling connectors module and software location Chapter 6 is a description of the commands in the service interface program a software program which is helpful during installation and trouble shooting ...

Страница 9: ...tion of the handset is to use it as a control and set up unit where functions liketheselection of coast station and satellite can be carried out Control unit The control unit SC4350 is a desk bulkhead mounted keyboard and display with an additional handset without keyboard and display Distress button The distress button can be used to activate a voice or a telex distress alert The kind of distress...

Страница 10: ... Information or Gyro Distress Key SD4360 Transceiver ST4425 Power Cable DC 24V Compass Keyboard Telex H1640 Maritime Computer Connection H4396 Box Local Net Matrix Printer H1252 Control Unit SC4350 ABOVE DECK BELOW DECK SC4345 Control Handset SAT B Antenna SA4415 Fascimile G3 Veritas H4394 95 Connection Box SAT B Transceiver ST4425C can be replaced by Control Unit All Control Handsets SC4345 SC435...

Страница 11: ...s according to CCITT Rec V 11 and X 27 PC Printer DB 15 connector Connection of personal computer and printer 1 asynchronous serial DTE DCE port 50 baud telex and 9 6 kbit s data according to CCITT Rec V 24 1 asynchronous serial DTE DCE port printer according to CCITT Rec V24 Alarm DB 15 connector Connection of alarm unit and alarm indicating unit Phone1 RJ 11 connector 2W phone PABX FAX interface...

Страница 12: ... OF THE STABILISATION SYSTEM 2 3 2 1 3 ANTENNA BEHAVIOUR DURING START UP SEQUENCE 2 4 2 1 4 ANTENNA BEHAVIOUR DURING GLOBAL SEARCH 2 4 2 1 5 ANTENNA BEHAVIOUR DURING REGION SHIFT SEARCH 2 4 2 1 6 TRACKING ALGORITHM 2 5 2 1 7 COMMUNICATION SETUP AND STATUS SURVEILLANCE 2 5 2 2 BELOW DECK EQUIPMENT 2 6 9936 Inmarsat B ...

Страница 13: ...units a DOWNconverterwhich isthecounterpartoftheUPconverter andatrackingreceiverwhichisapartofthetrackingandstabilisation system The output signal from LNA is split out to both units The DOWN converter and DOWN converter synthesizer mix the receiver band 1 525 1 545 GHz to a fixed intermediate frequency of 21 4 MHz Due to different service types voice high speed data etc different receiver bandwid...

Страница 14: ... supply SMPS The SMPS delivers different kinds of supply voltages to the modules Besides those fixed voltages a microprocessor controlled voltage used to regulate the output power from the HPA is also delivered Ifforsomereasonsignalsbetweentransceiverunitandantennaunitaremissing asignalcalleddeadman s button is activated shutting the regulated voltage to the HPA thus preventing the HPA from transm...

Страница 15: ...THE STABILISATION SYSTEM Fig 2 1 2 shows a block diagram of the stabilisation system Az rate sensor El rate sensor Inclinometer Tracking receiver Ce rate censor Motor Driver Motor Driver Motor Driver Motor Driver Zero mark det Horizontal step motor El axis step motor Az axis step motor Horizontal axis DC motor Brushless TSP Controller 35973B Fig 2 1 2 The stabilisation system can be divided into f...

Страница 16: ...left of the expected position to 15 to the right of it Finally it will move back to the azimuth and elevation angles where the highest signal levels were measured The fine search will last 1 2 minutes The total start up sequence will last 5 6 minutes 2 1 4 ANTENNA BEHAVIOUR DURING GLOBAL SEARCH If the modem cannot achieve synchronisation on the received NCSC signal within 5 seconds after the fast ...

Страница 17: ...ken in which direction to move the centre This procedure is repeated on the elevation and azimuth axes one at a time until a new search is started The size of the measurement steps on the azimuth axis increases when the elevation reference angle increases 2 1 7 COMMUNICATION SETUP AND STATUS SURVEILLANCE In addition to antenna tracking and stabilisation the TSP controller works as the central cont...

Страница 18: ...efore a combiner splitter circuit is used to combine the RF signals to be sent to the antenna unit and the split out received RF signal to the respective blocks which are to use them Modem board Thepurposeofthemodemboardistocodedataflowsentfromtheterminaltothesatelliteanddecodedata flow received from the satellite Coding is used to make it possible to detect and correct bit errors thus increasing ...

Страница 19: ...mplemented SMI board The SMI switch mode power supply and interconnection board contains the system power supply From the ship the main supply voltage of 24V DC is connected at the rear panel of the transceiver unit And from that the switch mode power supply generates a number of different voltages not only for the modules in the transceiver unit but also 40V DC for the antenna unit At the rear pa...

Страница 20: ...TRACKING RECEIVER 3 5 3 1 8 TRIPLEXER 3 6 3 1 9 SYNTHESIZER FOR TRACKING RECEIVER 3 8 3 1 10 SYNTHESIZER FOR UP DOWN CONVERTER 3 10 3 1 11 SWITCH MODE POWER SUPPLY 3 13 3 1 12 TSP 3 14 3 1 13 TILT SENSOR 3 15 3 2 BELOW DECK EQUIPMENT 3 16 3 2 1 SPS BOARD 3 16 3 2 2 MODEM BOARD 3 18 3 2 3 CSP VDP BOARD 3 19 3 2 4 PAX BOARD 3 20 3 2 5 SMI BOARD 3 21 3 2 6 HANDSET 3 22 9936 Inmarsat B ...

Страница 21: ... 12 cm is placed at the end of the plastic tube The feeder element is a helical antenna operating in axial mode thus creating a wave of circular polarisation as required from Inmarsat The wave is right handed The helix is wrapped around a form of polystyrene Inside the tube a semi rigid coax cable connects the feeder element with the SMA connector at the bottom of the parabolic reflector This conn...

Страница 22: ... the diplexer Interconnection between diplexer receiver port and LNA input is made by means of a short piece of semi rigid cable At antenna and TX port SMA connectors are used 3 1 3 LNA The main signal path in the LNA is constructed with four transistors and two helical filters as shown in fig 3 3 Network Matching Down Converter Tracking Receiver 1535 MHz 1535 MHz Power Divider Bias Bias Bias Bias...

Страница 23: ... amplifier The total power gain including filter losses is approximately 8 dB The power gain is temperature compensated by means of an NTC resistor in the bias network of the MOS FET transistor The final down conversion to second IF at 21 4 MHz takes place in the second This mixer has the same properties as the first one The second local oscillator amplifier amplifies the synthesizer signal from 2...

Страница 24: ...f band spurious The final amplification takes place in an MMIC The two local oscillator signals are delivered by the UP converter synthesizer The frequency of the first LO is 213 0025 to 213 315 MHz To obtain the required drive level of 7 dBm to the mixer LO port is used a buffer built up with two transistors The last stage is driven into compression to maintain a constant power level to the mixer...

Страница 25: ...wer If for some reason a burst in burst mode transmission becomes too long the output power or the temperature becomes too high the microcontroller forces the switch mode power supply to shut down the 28VR DC supply voltage and thus the transmitter power The interconnection between the microcontroller and the switch mode power supply is a serial connection If a fail condition arises an error code ...

Страница 26: ...in fig 3 8 4 40 32 MHz 21 4 MHz 87 MHz Circuit FM IF Slicer Data OSC 99 MHz Vector Modulator 150 kHz 150 kHz Phase Control OSC 150 kHz Combiner Splitter Converter Synthesizer 10 08 MHz to UP Down 10 08 MHz to Tracking Receiver Synthesizer 62 9 MHz output to UP Converter 21 4 MHz input from Down Converter Data to TSP Data from TSP To Connection Board 35529 Fig 3 8 The input block consists of a numb...

Страница 27: ...ta bit one or zero The receiver is based on the same principle except that the centre frequency is 87 MHz The data receiver is built up around an integrated circuit which is a complete FM IF subsystem The integrated circuit contains a mixer which converts the 87 MHz receiver signal to an intermediate frequency of 12 MHz The needed local oscillator signal is taken from the 99 MHz crystal oscillator...

Страница 28: ...hesizer 1391 040 1410 885 MHz in steps of 315 kHz VHF synthesizer 144 66000 144 97375 MHz in steps of 1 25 kHz A block diagram of the synthesizer module is shown in fig 3 9 LOOP 1 PD 32 VCO N 64 65 A PD 126 VCO N A 20 21 A N 20 21 128 PD VCO VHF L Band Lock det LOOP 2 10 08 MHz from Triplexer To TSP from PLL Lock Signals 35530 Fig 3 9 L band synthesizer The L band oscillator is based on a voltage ...

Страница 29: ...quency at the output of the VHF synthesizer is therefore only 1 25 kHz The integrated PLL circuits used in loop 1 and 2 do not include the prescaler Therefore external prescalers with a division ratio of 21 22 are used The loop filters are of same type as the one used in the L band synthesizer The VCO s are a Colpitts Clapp type built up with BJT s Before the amplified VCO signals enter the loop m...

Страница 30: ...tor which is used to mix the transmitter frequency to first IF is named VHF synthesizer and the other is named L band synthesizer The frequency coverage of the two synthesizers are listed below L band synthesizer 1776 915 1810 620 MHz in steps of 315 kHz VHF synthesizer 213 0025 213 3150 MHz in steps of 2 5 kHz A block diagram of the UP converter synthesizer is shown in fig 3 10 LOOP 1 PD 32 VCO N...

Страница 31: ...op 1 and 2 do not include the prescaler Therefore external prescalers with a division ratio of 21 22 are used The loop filters are of same type as the one used in the L band synthesizer The VCO s are a Colpitts Clapp type built up with BJT s Before the amplified VCO signals enter the loop mixer they are low pass filtered to attenuate the harmonic contents Loop mixing takes place in a passive doubl...

Страница 32: ...he output signal from the VCO is amplified in two integrated L band amplifiers MMIC The purpose of the amplifiers is not only to obtain the required signal level but also to isolate the frequency determining components in the VCO from the rest of the circuits VHF synthesizer The VHF synthesizer is also based on PLL technology but because of the high frequency resolution of 2 5 kHz and demands for ...

Страница 33: ...are converted to 15V 5V and 1 25V are generated by standard voltage regulators but the more critical supply voltages to VCO s and phase detectors are made by discrete components to lower the noise level 3 1 11 SWITCH MODE POWER SUPPLY The 40V DC supplied from the transceiver unit is converted to different voltage levels needed to supply the modules and motors This is done in the switch mode power ...

Страница 34: ... electronics 3 1 12 TSP The TSP board is the central control unit in the ADE Its main task is to control the antenna pointing stabilisation satellite search and satellite tracking In addition it takes care of control data communication with the BDE synthesizer setup and locking surveillance and exchange of control and status information with the HPA controller A block diagram is shown in fig 3 13 ...

Страница 35: ...r This LED always flashes with a total period of 1 second The flashing will pause a few seconds after reset and then start flashing 3 1 13 TILT SENSOR The main component of this module is a dual axis tilt sensor which is a vertical sensing electrolytic potentiometer providing a linear voltage output as the unit is tilted around the horizontal axis The unit is a hermetically sealed glass enclosure ...

Страница 36: ...ut off frequency of those filters can be changed by changing the filter clock frequency The clock frequency is generated by the TX SC synthesizer and depends on the selected service type The filtered signals are mixed with a 62 9 MHz local oscillator signal TX LO in a quadrature mixer to form the final TX IF signal The 62 9 MHz transmitter local oscillator is built up around a traditional PLL inte...

Страница 37: ...ta receiver is built up around the same FM integrated subsystem where an 87 MHz crystal oscillator is used to down convert the 99 MHz data signal to a 12 MHz IF before the data bit is recovered in the FM detector The 4800 baud data stream is transferred to the CSP VDP board Data transmitter The data transmitter is built up as an FSK modulator equal to the one placed on the triplexer board The data...

Страница 38: ...n decoder descrambler Viterbi sequential Ser interface with VDP Control interface with VDP with VDP Ser interface filters shaping Output convolutional coder Scrambler DAC DAC Rx Status control Data buffer Bidir Isymb Qsymb 3 3V 5V Power supply Tx Tx Tx 35968 Fig 3 2 2 A digital core performs all control processing and communication as well as the outputting of data to the A D converters for the an...

Страница 39: ... powering on The CSP controls the signal routing around the VDP and has the following interface paths X1 Contains an 8 bit parallel data interface is used to control all other boards in the transceiver X2 Contains 5 asynchronous serial data interfaces for the telex terminal telex printer service terminal NMEA position and NMEA gyro Inputs from the external distress buttons are also connected throu...

Страница 40: ... the T 30 protocol used in all fax communi cation and the DTMF tone detection are done by an integrated circuit Either of the two phone connectors can also be used for ordinary analogue telephones or PABX connections The system detects during startup if a PABX is connected and automatically configures the system for this The phone system is fitted with an advanced voice guide which can guide the u...

Страница 41: ...oupled in parallel i e only one 40V DC is available The fourth converter is a multi converter generating all internally used voltages in the transceiver unit The 40V DC is used as main voltage for the antenna unit as input for the multiconverter and finally as input for a special DC DC converter placed on the main board generating 12V DC for RS 232 terminals connected to the transceiver unit All t...

Страница 42: ...DSET ThehandsetisconnectedtothetransceiverunitthroughtheScanbuswhichcontainsbothanalogueand digital signals The analogue signals are microphone signal from handset and loudspeaker signal to the handset Both signals are balanced PAGE 3 22 9936 ...

Страница 43: ...CONTENTS 4 ACCESSORIES 4 1 4 1 SC4350 CONTROL UNIT 4 1 4 2 SD4360 DISTRESS BUTTON 4 1 4 3 H4394 95 VERITAS CONNECTION BOX 4 1 4 4 H4396 T CONNECTION BOX 4 2 9849 Inmarsat B ...

Страница 44: ...s balanced lines one for each direction microphone to BDE transceiver and BDE transceiver to earpiece loudspeaker and power supply wires Connection may be directly to the BDE transceiver s Scanbus connector or via a Veritas connection box If more than one Control Unit are to be connected to the system H4396 connection boxes are used All connected Control Units are 100 electrically parallelled The ...

Страница 45: ... the SUB D connectors at the transceiver unit rear panel and the ship installations A diagram and component placements are shown below All SUB D connectors at the transceiver unit are connected to their respective SUB D connectors inside the Veritas connection box In the box connections between SUB D and the wire terminal blocks to the ships installation cables are made Two relays inside the Verit...

Страница 46: ...4 ACCESSORIES Inmarsat B PAGE 4 3 Inmarsat B 9849 Diagram Veritas connection box ...

Страница 47: ...4 ACCESSORIES Inmarsat B PAGE 4 4 9901 4 4 H4396 T CONNECTION BOX Component location T Connection box Diagram T Connection box ...

Страница 48: ...HANGING HORIZONTAL AXIS TIMING BELT 5 3 5 1 3 CONNECTORS AND SOFTWARE LOCATION 5 4 5 1 3 1 UP DOWN CONVERTER UNIT 5 4 5 1 3 2 TRACKING RECEIVER UNIT 5 5 5 1 3 3 HPA 5 6 5 1 3 4 DIPLEXER LNA 5 7 5 1 3 5 TSP 5 7 5 1 3 6 TRIPLEXER 5 10 5 1 3 7 SMPS 5 11 5 1 3 8 STEP MOTOR DRIVER 5 13 5 1 3 10 DC MOTOR DRIVER 5 14 5 1 3 11 TILT SENSOR 5 15 5 1 3 12 FLUXGATE COMPASS 5 15 5 1 3 13 ZERO MARK DETECTOR 5 1...

Страница 49: ...FTWARE LOCATION 5 18 5 2 2 1 SPS BOARD 5 22 5 2 2 2 CSP VDP BOARD 5 22 5 2 2 3 PAX BOARD 5 23 5 2 2 4 SMI 5 23 5 2 2 5 LSD HSD FPGA AND COMBI MODEM 5 24 5 3 HANDSET 5 25 5 3 1 SOFTWARE LOCATION 5 25 5 4 CONTROL UNIT 5 25 5 4 1 SOFTWARE LOCATION 5 25 ...

Страница 50: ...art no 629362 6 Step motor driver for elevation axis motor part no 629362 7 SMPS part no 629364 8 Rate sensor for cross elevation axis part no 41 603 9 ADE fuse part no 45 510 Fig 5 2 1 Up down converter unit part no 730650 2 Connection board part no 629349 3 Triplexer part no 629358 4 TSP part no 630814 5 Step motor driver for azimuth axis part no 629362 Fig 5 3 1 ADE on off switch 2 Tilt sensor ...

Страница 51: ... pcb 2 Loosen the four screws holding the motor part no 87 443 3 Remove one 4 mm screw part no 87 285 4 Remove twelve 3 mm screws part no 86 963 5 Remove six 4 mm screws part no 87 285 6 Remove three 8 mm bolts part no 87 902 7 Remove the side panel part no 230623 Change the timing belt 1 4 3 5 6 7 2 5 1 2 3 CHANGING CROSS ELEVATION TIMING BELT Fig 5 6 1 Loosen the four screws holding the motor Lo...

Страница 52: ...at B PAGE 5 3 9936 5 1 2 4 CHANGING HORIZONTAL AXIS TIMING BELT Fig 5 7 1 Loosen the four screws holding the motor part no 86 962 2 Loosen one 5 mm bolt part no 87 421 and remove the horizontal axis Change the timing belt 2 1 part no 48 855 part no 736891 ...

Страница 53: ...1 4 MHz IF from down converter Triplexer X5 L band input to down converter Diplexer LNA unit Connector no X6 Connector type Molex 2 x 10 pins Pin no Connection name Colour To from 1 No connection 2 No connection 3 15 5V DC Brown SMPS 4 Ground Black 5 18V DC Orange SMPS 6 8V DC Red SMPS 7 STB2 LO2 D White TSP 8 STB LO1 D Violet TSP 9 LOCK DET 1 Violet TSP 10 STB1 LO2 D Grey TSP 11 STB LO2 U Green T...

Страница 54: ...ing receiver Diplexer LNA unit X3 10 08 MHz reference to synthesiser Triplexer Connector no X2 Connector type Molex 14 pins Pin no Connection name Colour To from 1 No connection 2 No connection 3 15 5V DC Brown SMPS 4 Ground Black 5 18V DC Orange SMPS 6 8V DC Red SMPS 7 Ground Black 8 STS Green TSP 9 STB2 LO2 T White TSP 10 STB LO1 T Blue TSP 11 CLOCK Violet TSP 12 STB1 LO2 T Grey TSP 13 LOCK DET ...

Страница 55: ... type Molex 2 X 10 pins Pin no Connection name Colour To from 1 28RV DC Yellow SMPS 2 28RV DC Yellow SMPS 3 28RVDC Yellow SMPS 4 Ground Black SMPS 5 28V Orange SMPS 6 Ground Black SMPS 7 12V Orange SMPS 8 Ground Black SMPS 9 7 5V Red SMPS 10 Test TSP 11 DMB 2 Blue SMPS 12 STB PC Green TSP 13 CLK White TSP 14 DATA Grey TSP 15 Ground Black SMPS 16 DATA OUT White TSP 17 DATA IN Grey TSP 18 CLK Violet...

Страница 56: ...RT no 730630 Connections Connector no X1 X2 X3 X4 Connector type SMA Coax Connector no Connection name To from X1 LNA output Down converter X2 LNA output Tracking receiver X3 Diplexer input output Antenna X4 Diplexer input Tx HPA 5 1 3 5 TSP PART no 630814 PAGE 5 7 9849 X3 X4 X1 X2 ...

Страница 57: ...ng receiver unit 2 SYNTH_DATA Blue Tracking receiver unit 3 SYNTH_SCLK Violet Tracking receiver unit 4 STB1LO2T Grey Tracking receiver unit 5 STB2LO2T White Tracking receiver unit 6 STBLO1T Blue Tracking receiver unit 7 Ground Black Tracking receiver unit 8 Tracklevel Green Tracking receiver unit 9 SYNTH_DATA Green Up Down converter unit 10 SYNTH_SCLK Blue Up Down converter unit 11 Ground Black Up...

Страница 58: ...r driver CE 10 CE_PHASE_C Violet Motor driver CE 11 No connection 12 CE_PHASE_D Grey Motor driver CE 13 No connection 14 No connection 15 CE_RATE White Rate sensor CE 16 No connection 17 X4_PHASE_A Green Step motor driver HZ 18 Ground Black Step motor driver HZ 19 X4_PHASE_B Blue Step motor driver HZ 20 X4_PHASE_C Violet Step motor driver HZ 21 No connection 22 X4_PHASE_D Grey Step motor driver HZ...

Страница 59: ...onnection 6 AZ_PHASE_D Grey Step motor driver Az 7 AZENC_PHA Green Not used 8 AZENC_PHB Blue Not used 9 Ground Black Not used 10 No connection 5 1 3 6 TRIPLEXER PART no 629358 Connections Connector no X2 X3 X4 X5 X6 Connector type SMB coax Connector no Connection name To from X2 Composite input output signal Connection board X3 21 4 MHz IF signal Down converter X4 62 9 MHz IF signal Up converter X...

Страница 60: ...ibbon cable SMPS Tsp 7 Rx data Grey ribbon cable SMPS Tsp 8 Tx data Grey ribbon cable SMPS Tsp 9 No connection Grey ribbon cable SMPS Tsp 10 No connection Grey ribbon cable SMPS Tsp 5 1 3 7 SMPS PART no 629364 P5 P3 P6 P4 P2 P1 29364A50 F1 Fuse Component no Description Spare part no F1 Fuse for 40V conv 45 510 Connector no P1 Connector type 2 x 2 pins Pin no Connection name Colour To from 1 40V Re...

Страница 61: ...ype 2 x 8 pins Pin no Connection name Colour To from 1 24V Yellow Step motor driver El 2 Ground Black Step motor driver El 3 24V Yellow BLDC motor driver Ce 4 Ground Black BLDC motor driver Ce 5 24V Yellow Step motor driver Horison 6 Ground Black Step motor driver Horison 7 18V Not used 8 15 5V Not used 9 Ground Black Rate sensor CE 10 8V Red Zero mark det 11 Ground Black Zero mark det 12 18V Oran...

Страница 62: ...Pin no Connection name Colour To from 1 18V DC Grey ribbon cable Triplexer Tsp 2 8V DC Grey ribbon cable Triplexer Tsp 3 8V DC Grey ribbon cable Triplexer Tsp 4 No connection Grey ribbon cable Triplexer Tsp 5 Ground Grey ribbon cable Triplexer Tsp 6 No connection Grey ribbon cable Triplexer Tsp 7 Rx data Grey ribbon cable Triplexer Tsp 8 Tx data Grey ribbon cable Triplexer Tsp 9 No connection Grey...

Страница 63: ... no 634686 Connector no X1 Connector type 2 x 5 pins Pin no Connection name Colour To from 1 WC Orange Motor 2 Ground Black Motor 3 WB Red Motor 4 H3 White Motor 5 WA Brown Motor 6 H2 Blue Motor 7 No connection 8 H1 Grey Motor 9 5V Violet Motor 10 Ground Black Motor Connector no X2 Connector type 2 x 4 pins Pin no Connection name Colour To from 1 No connection 2 Ground Green TSP 3 No connection 4 ...

Страница 64: ...v DC Red Fluxgate compass 7 15 5V DC Brown Fluxgate compass 8 Ground Black Fluxgate compass 5 1 3 12 FLUXGATE COMPASS PART no 629369 P2 P3 29369 50 Connector no P2 Connector type 2 x 6 pins Pin no Connection name Colour To from 1 18V DC Orange Tilt sensor 2 8V DC Red Tilt sensor 3 15 5V DC Brown Tilt sensor 4 Ground Black Tilt sensor 5 Not used 6 12V DC Yellow Rate sensor EL 7 Not used 8 Ground Bl...

Страница 65: ...P 9 12V DC Test point 10 Ground Black TSP 5 1 3 13 ZERO MARK DETECTOR PART no 629365 P1 29365 50 Connector no P1 Connector type Molex 2 x 3 pins Pin no Connection name Colour To from 1 Zero mark White TSP 2 Ground Black TSP 3 8V DC Red SMPS 4 Ground Black SMPS 5 No connection 6 No connection 5 1 3 14 INTERCONNECTION BOARD PART no 629349 Connector no X3 Connector type Molex 2 x 2 pins Pin no Connec...

Страница 66: ... DISASSEMBLING AND MODULE LOCATION Inmarsat B 5 2 TRANSCEIVER UNIT 5 2 1 MODULE LOCATION CSP VDP MODULE LSD HSD COMBI MODEM 629347 630953 PAX MODULE 631593 SPS MODULE 631531 SMI MODULE 631800 32332C PAGE 5 17 9936 ...

Страница 67: ...L boards 17 STROBE3 ALL boards 18 No connection ALL boards 19 Reset ALL boards 20 Ground ALL boards Connector no X2 Connector type Micro match 20 pins Pin no Connection name To from 1 RS232 TLX RX SMI PAX CSP 2 RS232 TLX TX SMI PAX CSP 3 RS232 PRN TX SMI PAX CSP 4 RS232 GROUND SMI PAX CSP 5 RS232 PRN RX SMI PAX CSP 6 RS232 12V SMI PAX CSP 7 RS232 12V SMI PAX CSP 8 RS232 PRN CTS SMI PAX CSP 9 RS232...

Страница 68: ...LSD VDP CSP 14 NO CONNECTION SPS HSD LSD VDP CSP 15 NO CONNECTION SPS HSD LSD VDP CSP 16 ANT RX DATA SPS HSD LSD VDP CSP 17 ANT TX DATA SPS HSD LSD VDP CSP 18 NO CONNECTION SPS HSD LSD VDP CSP 19 NO CONNECTION SPS HSD LSD VDP CSP 20 Ground SPS HSD LSD VDP CSP Connector no X3A Connector type Micro match 20 pins Pin no Connection name To from 1 Ground SPS SMI 2 DATA RX SPS SMI 3 DATA TX SPS SMI 4 DA...

Страница 69: ...D LSD CSP 9 15V SPS PAX HSD LSD CSP 10 7 5V SPS PAX HSD LSD CSP 11 7 5V SPS PAX HSD LSD CSP 12 Q SIGNAL BIT0 SPS PAX HSD LSD CSP 13 Q SIGNAL BIT1 SPS PAX HSD LSD CSP 14 Q SIGNAL BIT2 SPS PAX HSD LSD CSP 15 Q SIGNAL BIT3 SPS PAX HSD LSD CSP 16 SYMBOL SYNC SPS PAX HSD LSD CSP 17 TX I SIGNAL SPS PAX HSD LSD CSP 18 TX Q SIGNAL SPS PAX HSD LSD CSP 19 PABX IRQ SPS PAX HSD LSD CSP 20 Ground SPS PAX HSD L...

Страница 70: ... Connector no X36 Connector type Micro match 16 pins Pin no Connection name To from 1 Ground CSP FRONT CONNECTOR 2 40V CSP FRONT CONNECTOR 3 RS232 Ground CSP FRONT CONNECTOR 4 RS232 TLX RX CSP FRONT CONNECTOR 5 RS232 TLX TX CSP FRONT CONNECTOR 6 RS232 PRN RX CSP FRONT CONNECTOR 7 RS232 PRN TX CSP FRONT CONNECTOR 8 RS232 PRN CTS CSP FRONT CONNECTOR 9 RS232 MON RX CSP FRONT CONNECTOR 10 RS232 MON TX...

Страница 71: ...omponent no Description Spare part no D4 Receive Synchronization 731520 Connectors X1 X3 X3A X5 X6 5 2 2 2 CSP VDP BOARD PART no 630953 X2 X1 X3 X4 X5 X6 X7 30953 56 D16 D15 X8 Software Component no Description Spare part no D15 CSP VDP Software 732512 D16 CSP VDP Software 732513 Connectors X1 X2 X3 X4 X5 X6 X7 X8 PAGE 5 22 9936 ...

Страница 72: ...ription Spare part no D19 Phone Fax Software 731523 D20 Phone Fax Software 731522 Connectors X1 X2 X5 X6 X7 5 2 2 4 SMI PART no 731649 36832 F3 F2 F1 F4 F5 Fuses Component no Description Spare part no F1 Main fuse 20A 45 665 F2 Fuse for 40V conv 45 510 F3 Fuse for 40V conv 45 510 F4 Fuse for 40V conv 45 510 F5 Fuse for NMEA 40V 45 722 PAGE 5 23 9936 ...

Страница 73: ...ND MODULE LOCATION Inmarsat B 31800D F2 F3 F4 F1 F5 X3 X2 X1 X4 Connectors X1 X2 X3 X4 5 2 2 5 LSD HSD FPGA AND COMBI MODEM PART no 629347 29346 56 X1 X3 X5 Connectors X1 X3 X5 HS FPGA MODEM PART no 633846 33847 56 PAGE 5 24 9936 ...

Страница 74: ...ODEM PART no 629347 29347 56 5 3 HANDSET 5 3 1 SOFTWARE LOCATION PART no 630499 30499 56 D4 Component no Description Spare part no D4 CU Software 735158 5 4 CONTROL UNIT 5 4 1 SOFTWARE LOCATION PART no 633769 33769 56 D5 Component no Description Spare part no D5 CU Software 735585 ...

Страница 75: ... 6 CASC 6 5 6 7 COURSE 6 7 6 8 CU 6 7 6 9 DATE 6 9 6 10 EXIT 6 10 6 11 GYRO 6 10 6 12 HELP 6 10 6 13 LES 6 11 6 14 LOG 6 11 6 15 MODEM 6 12 6 16 NUMERIC 6 13 6 17 PAX 6 13 6 18 POSITION 6 14 6 19 PRINTER 6 14 6 20 REGION 6 15 6 21 REMARK 6 16 6 22 SES 6 16 6 23 SNU 6 17 6 24 SPEED 6 18 Inmarsat B 9936 ...

Страница 76: ...CONTENTS Inmarsat B 6 25 SPS 6 18 6 26 STATUS 6 19 6 27 SU 6 20 6 28 TEST 6 20 6 29 TIME 6 22 6 30 VDP 6 23 6 31 VERSION 6 23 9936 ...

Страница 77: ... panel of the transceiver unit The following table shows the connections to be made to a PC COM port with either a 9 or 25 pin D SUB connector Signal X34 PC 9 pin SUB D PC 25 pin SUB D Service RX 13 3 2 Service TX 14 2 3 Serial GND 15 5 7 Settings Although the terms may differ for different terminals the PC or terminal emulation program must be set up using the following parameters Baud rate 9600 ...

Страница 78: ...is not searching for another this entry will be yes Otherwise it will be no Azimuth The azimuth part of the current antenna pointing direction in degrees minutes This value is not valid before the first satellite search has been performed and is not updated while searching If the position is available the calculated azimuth follows Elevation The elevation part of the current antenna pointing direc...

Страница 79: ... contains approx 2600 lines and the current line number is displayed during the transfer If any error is detected you will be notified and returned to the command prompt after normal operation has been re enabled When the transfer to the BDE is complete and found to be valid this will be displayed and the program transferred to the ADE During this process the percentage done will be displayed Agai...

Страница 80: ...BOOK entry CLEAR 6 3 1 BOOK Shows all phone book entries not empty This command may be used to make a backup of the phone book i e on a disk file To restore the phone book simply clear the phone book refer to 0 and play back the file 6 3 2 BOOK ENTRY Shows the specified phone book entry 6 3 3 BOOK ENTRY NUMBER Changes the phone number of the specified phone book entry The name if any will not be c...

Страница 81: ... on TX FIFO overrun This entry must be no in order for the SES to communicate on the network If a TX FIFO memory overrun occurs this entry will be yes and the network will be disabled The equipment will have to be switched off and back on RX main channel The 8 bit main network channel address of the SES At the moment this value is fixed to decimal 18 RX subchannel For each of the 8 network channel...

Страница 82: ...ation init level 3 Transient state used for initialisation awaiting sky search Used while the ADE is searching for the satellite awaiting bulletin board Used after the ADE has found the satellite until the complete bulletin board is received Usually one or two minutes init level 4 After the bulletin board has been received this state is used to validate the selected distress and stand alone earth ...

Страница 83: ...ollowing format Extension address type state priority hook Extension The local extension in the Inmarsat system Address The logical address in the Scanbus data network CAN This address is automatically assigned to each individual unit every time the MES SES is switched on Type The hardware type SC4345 or SC4346 State The operational state of the unit translates directly to a specific CAN subchanne...

Страница 84: ...hed on Type The hardware type SC4345 or SC4346 State The operational state of the unit translates directly to a specific CAN sub channel refer to 0 active The current or latest unit being used CAN subchannel 1 passive Units enabled but not currently used CAN subchannel 2 disabled Units disabled for call announcements CAN subchannel 3 Priority The numeric operational priority assigned to the unit H...

Страница 85: ...one if on The internal sound generator is routed only to the earpiece intercom Scanbus audio is enabled for intercom and routed to the earpiece and from the microphone if on The internal sound generator is routed only to the earpiece loop back Scanbus audio is enabled for loop back test and routed from the input to the output The internal sound generator is routed only to the earpiece 6 9 DATE Sho...

Страница 86: ... 6 11 1 GYRO Shows the heading in degrees minutes 6 11 2 GYRO RAW Shows the raw NMEA input until the Escape key is pressed 6 12 HELP On line help Syntax HELP HELP LIST HELP command HELP ALL 6 12 1 HELP Shows command words The short form versions are not included 6 12 2 HELP LIST Lists all commands with a single line syntax description 6 12 3 HELP COMMAND Shows detailed help about a specific comman...

Страница 87: ...ection was established Duration The time from connection to disconnection in hours minutes seconds preceeded by the number of days in the odd instance that a connection lasts for 24 hours or more Service type The type of service used which is one of the following possibilities voice Inmarsat B standard voice voice 9k6 Inmarsat B voice at 9600 bps Reserved by Inmarsat and not currently used fax Inm...

Страница 88: ...ows the specified number of latest call log entries Each entry is shown as described above 6 14 3 LOG ID NUMBER Shows the call log entry with the specified ID The entry is shown as described above 6 15 MODEM Shows the state of the MODEM Syntax MODEM 6 15 1 MODEM If the modem is not found this is shown Otherwise the following is listed If the MODEM has never been active i e frame sync has not been ...

Страница 89: ...n normal installations 6 16 NUMERIC Shows or changes the default interpretation of numeric parameters Syntax NUM ERIC NUM ERIC DEC IMAL NUM ERIC HEX ADECIMAL 6 16 1 NUMERIC Shows the current numeric default 6 16 2 NUMERIC DECIMAL Sets the numeric default interpretation to decimal 6 16 3 NUMERIC HEXADECIMAL Sets the numeric default interpretation to hexadecimal 6 17 PAX Shows the state of the phone...

Страница 90: ... south The direction of the latitude longitude The longitude in degrees 0 180 inclusive east west The direction of the longitude 6 18 3 POSITION AUTO Shows whether or not the position may be calculated based on the antenna pointing direction This will only occur if the NMEA position information is missing and the antenna is locked to a satellite 6 18 4 POSITION AUTO ON OFF Specifies whether or not...

Страница 91: ...ware pace control has been used since power on 6 20 REGION Shows or sets the current ocean region Syntax REGION REGION region REGION AUTO REGION AUTO ON OFF 6 20 1 REGION Shows the current ocean region 6 20 2 REGION REGION Sets the current ocean region The following numeric and abbreviated regions may be used 0 AORW Atlantic Ocean Region West 1 AORE Atlantic Ocean Region East 2 POR Pacific Ocean R...

Страница 92: ...22 1 SES ALL Shows all earth stations in the current ocean region Each SES is shown in a single line having the following format Access code A number used globally to identify the SES Name The title if any assigned by the user in quotes Capabilities The main operational capabilities of the SES One or more of the following backup The SES is distress backup for the NCS distress The SES can handle re...

Страница 93: ...L Shows the specified earth station in all regions 6 22 7 SES ACCESS NAME Changes the name of the earth station in the current region The name must be in quotes 6 22 8 SES ACCESS REGION NAME Changes the name of the earth station in the specified region with the specified access code The name must be in quotes Refer to the REGION command 0 to get a list of the available regions 6 22 9 SES ACCESS AL...

Страница 94: ...pe Filter clock The input clock frequency of the switched capacitor filter Cut off frequency The cut off frequency of the switch capacitor filter Cut off uses VCO Whether or not the clock frequency of the switched capacitor filter is generated by the VCO of the synthesizer or just the reference divider Cut off locked Whether or not the clock frequency synthesizer for the switched capacitor filter ...

Страница 95: ... is locked Intermediate locked Whether or not the intermediate frequency synthesizer is locked 6 26 STATUS Shows the main status of the system Syntax STATUS 6 26 1 STATUS Shows the most important status of the system One of the following lines are shown System is idle The system is ready to be used for communication Inmarsat IDs are invalid This unit has not been initialised with a proper pair of ...

Страница 96: ...ndancy check CRC The value is the result of the latest 100 signal units received 6 28 TEST Executes the self test Syntax TEST WARN TEST sequence WARN TEST LIST TEST number TEST CLEAR The self test is built around a series of primitive tests each associated with a limited part of the equipment Each of these tests is described below Sequences of tests are used to test major equipment blocks such as ...

Страница 97: ...he WARN parameter is specified warnings are listed Otherwise only failed tests are shown 6 28 2 TEST SEQUENCE WARN Runs the specified self test sequence If the WARN parameter is specified warnings are shown otherwise only failed tests The following sequences are available ALL The entire system ADE The entire ADE ADERX The receiver path of the ADE ADETX The transmitter path of the ADE ADECONTROL Th...

Страница 98: ...inute second TIME ON TIME OFF 6 29 1 TIME Shows the current date and time 6 29 TIME HOUR MINUTE SECOND Changes the time of day The parameters are hour The hour in the range 0 23 inclusive minute The minute in the range 0 59 inclusive second Optional second in the range 0 59 inclusive If the parameter is missing zero is assumed 6 29 3 TIME HOUR MINUTE SECOND As above except the parameters are separ...

Страница 99: ...on voice 9k6 Inmarsat B optional voice voice 16k Inmarsat B standard voice fax 9k6 Inmarsat B fax data 9k6 Inmarsat B standard data data 16k Inmarsat B optional data data 56k Inmarsat B derated high speed data data 64k Inmarsat B high speed data Transmission The current transmission mode of operation The possible modes are identical to those listed for reception 6 31 VERSION Shows the software ver...

Страница 100: ...TRESS BUTTON 2 7 3 7 10 TELEX INPUT 7 3 7 11 PRINTER INPUT 7 4 7 12 ADE INPUT 7 4 7 13 NMEA POSITION INPUT 7 5 7 14 SERVICE INPUT 7 5 7 15 NMEA GYRO INPUT 7 5 7 16 PRINTER ON LINE 7 6 7 17 HEADING KNOWN 7 6 7 18 POSITION KNOWN 7 6 7 19 OCEAN REGION VALID 7 7 7 20 CONTROL UNIT FOUND 7 7 7 21 SCANBUS DATA TRANSMISSION 7 7 7 22 SCANBUS DATA RECEPTION 7 7 7 23 TU BUS 7 8 7 24 MODEM FOUND 7 8 9936 Inma...

Страница 101: ...DE FOUND 7 11 7 36 DOWN CONVERTER LOCKED 7 12 7 37 TRACKING RECEIVER LOCKED 7 12 7 38 UP CONVERTER LOCKED 7 12 7 39 HPA FAILED 7 13 7 40 HPA TIMED OUT 7 13 7 41 HPA STOPPED 7 13 7 42 ADE READY 7 14 7 43 ADE IDLE 7 14 7 44 ANTENNA DIRECTION 7 14 7 45 ADE AZIMUTH RATE SENSOR 7 15 7 46 ADE ELEVATION RATE SENSOR 7 15 7 47 ADE CROSS ELEVATION RATE SENSOR 7 15 7 48 ADE INCLINOMETER 7 16 7 49 ADE CONNECT...

Страница 102: ... RUNNING 7 18 7 55 PAX PHONE 1 ACTIVITY 7 18 7 56 PAX PHONE 2 ACTIVITY 7 19 7 57 PAX PHONE 1 PABX SETTING 7 19 7 58 PAX PHONE 2 PABX SETTING 7 19 7 59 PAX PHONE 1 LINE NOISE 7 20 7 60 PAX PHONE 2 LINE NOISE 7 20 7 61 SPS OCXO WARM 7 20 7 62 ADE FAILED 7 21 7 63 ADE CONTROL INPUT 7 21 7 64 ADE CONTROL OUTPUT 7 21 ...

Страница 103: ...ack in the Transceiver Unit TU connected to X8 on the CSP VDP module 7 2 REAL TIME CLOCK Reports the state of the real time clock in the CSP processor found during power up Result 1 OK The real time clock was valid just after power on or the error state has been reset by the TEST CLEAR command Result 2 FAILED The real time clock was invalid and has been set to the CSP program release date and time...

Страница 104: ...assumed when either of the above inputs are passive Result 2 FAILED The voltage is not present This is assumed when all of the above inputs are active Actions Check the cables W3A and W5 inside TU 7 6 FACTORY RESET Reports the state of the Factory reset input pin 5 in X32 Result 1 OK The input is passive Result 2 FAILED The input is active This does not affect the system but indicates a possible e...

Страница 105: ...t starting the distress sequence Check the cable W2 inside the TU 7 9 DISTRESS BUTTON 2 Reports the state of the Distress button 2 input pin 5 in X35 Result 1 OK The input is passive Result 2 FAILED The input is active This may be a deliberate action but is most likely an error Actions Check X35 or refer to 0 Result 5 input static The button has not been activated since power on Actions Activate t...

Страница 106: ...nput at pin 4 in X34 not not this one ignore the warning Otherwise try setting the printer off line and back on line Check the external connection Check the cable W2 inside the TU 7 12 ADE INPUT Reports the state of the serial ADE communications input which is an integral part of the single cable connection at X21 Result 1 OK The input has received one or more characters and the latest was without...

Страница 107: ...in 9 in X36 or optionally pin 2 in X53 Result 1 OK The input has received one or more characters and the latest was without error Result 2 FAILED The latest character received was faulty Actions Check the interface settings of the service terminal Result 5 input static The input has not received anything since power on Actions Hit a key on the service terminal Check the external connection Check t...

Страница 108: ...ation has been updated recently Result 2 FAILED The heading information is not available or has been timed out Actions Check the connection at X32 or X36 Check the gyro repeater Check the cables W2 and W36 inside the TU 7 18 POSITION KNOWN Reports the state of automatic NMEA position information Result 1 OK The position information has been updated recently Result 2 FAILED The position information...

Страница 109: ...ly i e by lifting it off the hook or pressing a button Actions Hook off and put back on each connected handset Check the Scanbus cable at X31 Check the cable W4 inside the TU 7 21 SCANBUS DATA TRANSMISSION Checks if the latest information to be transmitted on the CAN network has succeeded Result 1 OK The destination unit has received the information Result 2 FAILED The transmission has not succeed...

Страница 110: ...r power on Thus if the MODEM fails during the same power on period as the test is run OK will still be the result Result 2 FAILED The MODEM has not been found Actions Check the cable W1 inside the TU Check the cable W3B inside the TU 7 25 MODEM ACTIVE Checks that the MODEM has transferred information to the CSP processor using the TU bus This test requires that a proper NCSC signal has been receiv...

Страница 111: ...ing a known status by the TU bus Result 1 OK The SPS has been found Result 2 FAILED The SPS has not been found Actions Check the cable W1 inside the TU 7 28 SPS RX IF Checks the receiver intermediate frequency synthesizer of the SPS Result 1 OK The synthesizer is locked Result 2 FAILED The synthesizer is not locked Actions Check the cable W1 inside the TU Check the 10 08MHz master clock in X3 pin ...

Страница 112: ...lt 3 target not found The SPS has not been found refer to 0 7 31 SPS TX FILTER Checks the transmitter switched capacitor filter frequency synthesizer of the SPS Result 1 OK The synthesizer is locked or not used Result 2 FAILED The synthesizer is not locked Actions Check the cable W1 inside the TU Check the 10 08MHz master clock in X3 pin 12 Result 3 target not found The SPS has not been found refe...

Страница 113: ...e current received signal to noise ratio This measurement is based on calculations made by the SPS DSP Result 1 OK The ratio is within range Result 2 FAILED The ratio is not within range Actions Refer to the other tests for the SPS module and the ADE Result 3 target not found The SPS has not been found refer to 0 or the SPS DSP is not running refer to 0 Result 6 wrong state A satellite search has ...

Страница 114: ...The synthesizer is locked and has been so since power on Result 2 FAILED The synthesizer has at one point been unlocked This situation is memorised until the command TEST CLEAR is used The synthesizer may or may not be locked at the moment Actions Result 3 target not found The ADE has not been found refer to 0 7 38 UP CONVERTER LOCKED Checks the UP converter synthesizer of the ADE Result 1 OK The ...

Страница 115: ...ot timed out during transmission bursts since power on Result 2 FAILED The HPA has at one point timed out during a transmission burst This situation is memorised until the command TEST CLEAR is used Actions Check the cable W3B inside the TU Result 3 target not found The ADE has not been found refer to 0 7 41 HPA STOPPED Checks the high power amplifier of the ADE Result 1 OK The HPA has not stopped...

Страница 116: ...ng for a satellite Actions Wait until the search has finished approx 5 minutes Result 3 target not found The ADE has not been found refer to 0 7 44 ANTENNA DIRECTION Checks the antenna pointing direction Result 1 OK The antenna is pointing in the correct direction for the current ocean region Result 2 FAILED The antenna is not pointing in the correct direction for the current ocean region Actions ...

Страница 117: ...ION RATE SENSOR Checks that the ADE elevation rate sensor is working Result 1 OK The sensor is working Result 2 FAILED The sensor is not working Actions Result 3 target not found The ADE has not been found refer to 0 Result 6 wrong state The ADE has not yet aligned the sensors refer to 0 Actions Wait until the alignment has finished approx 5 minutes 7 47 ADE CROSS ELEVATION RATE SENSOR Checks that...

Страница 118: ...l the alignment has finished approx 5 minutes 7 49 ADE CONNECTION STABILITY Checks that the data connection to the ADE is stable Result 1 OK The connection is stable i e the ADE is currently connected and has not been lost since power on Result 2 FAILED The connection is unstable i e it has been lost at least once since power on This might be because the software has been uploaded to the ADE or be...

Страница 119: ...le W3B inside the TU Result 3 target not found The VDP is not working refer to 0 Result 6 wrong state No connection has been established involving the VDP At least one voice data or fax connection must have been made after the last power on for the MODEM to be detected by the VDP 7 52 VDP CLOCK DETECTED Checks that the Voice and Data Processor on the CSP VDP module PCB1011 has detected the communi...

Страница 120: ...ot running Actions Check the cable W1 inside the TU Check that all cables to external accessories are properly terminated The FAX Phone LSD and HSD wires must be terminated if the accessories shall be connected to the cables Result 3 target not found The PAX has not been found refer to 5 53 7 55 PAX PHONE 1 ACTIVITY Checks that hook on off or ringing has been detected for the Phone 1 connector X41...

Страница 121: ...ernal accessories are properly terminated The FAX Phone LSD and HSD wires must be terminated if the accessories shall be connected to the cables Result 3 target not found The PAX has not been found refer to 5 53 Result 6 wrong state The line is active hook off 7 58 PAX PHONE 2 PABX SETTING Checks that the automatic detection of whether or not a PABX is connected to the Phone 2 connector X42 is sti...

Страница 122: ...l below an acceptable maximum limit This test requires the line to be active hook off but without signalling Result 1 OK The level is well below the acceptable maximum limit Result 2 FAILED The level is above the acceptable maximum limit Actions Check the connection to X42 Result 3 target not found The PAX has not been found refer to 5 53 Result 6 wrong state The line is passive hook on 7 61 SPS O...

Страница 123: ...K All control data send by the ADE is currently being received by the BDE without any errors Result 2 FAILED Some or all of the control data send by the ADE is currently being received erroneous by the BDE Actions Result 3 target not found The ADE has not been found refer to 5 35 7 64 ADE CONTROL OUTPUT Checks the quality of the control data running from the BDE to the ADE Result 1 OK All control ...

Страница 124: ...CONTENTS 8 PERFORMANCE CHECK AFTER REPAIR 8 1 8 1 START UP SEQUENCE 8 1 9936 Inmarsat B ...

Страница 125: ...seconds If the position is keyedin us ing the handset the sequence will stop at this point until the position has been stored after which the display will show Not Ready System Initializing for a few seconds and then for a few seconds Setting handset inactive Depending on the time it takes to key in the position manually step 4 and or step 5 may be completed before the handset is reactivated Step ...

Страница 126: ...etup Menu Areas Auto areas menu If so an automatic area change is initialized if communication with the satellite has been impossible during a period of 15 20 minutes A region shift search will last 1 2 minutes Step 7 Awaiting bulletin brd When a search has been completed the transceiver unit will wait until the bulletin board has been received Normally the bulletin board will be received a couple...

Страница 127: ...CONTENTS 9 SERVICE 9 1 9 1 CHECK OF OCXO 9 1 9936 Inmarsat B ...

Страница 128: ...quency Ageing is not a linear function of time and will be greatest at the beginning of the lifetime of the crystal The oscillator is adjusted when it leaves the factory and need not be adjusted Checks can be performed from the service interface once a year Requirement When adjusted the frequency of the OCXO is to fulfil the requirement listed below f 40 3200000 MHz 0 5 Hz Use the service interfac...

Страница 129: ...CONTENTS 10 PARTS LISTS 10 1 9901 Inmarsat B ...

Страница 130: ... MISC INTERCONNECTION CABLE 4 POLES L 180MM ECI A S 3 0 31973A 531973 MISC INTERCONNECTION CABLE 8 POLES L 180MM ECI A S 3 0 31974A 531974 MISC UPC Up Converter for Inmarsat B ECI A S 5 6 29356C 4 0 29356C 629356 BASE UNIT ST4425B TRANSC w DC VOICE TELEX FAX DATA ECI A S 724425 POSITION DESCRIPTION MANUFACTOR TYPE PART NO MISC BATTERY HOLDER WITH PLUG S PRO 983 785 81C 10780170 MISC INTERCONNECTIO...

Страница 131: ... 455mm BANDO 10 T5 455 48 852 MISC TIMING BELT L 620mm BANDO 10 T5 620 48 853 MISC TIMING BELT L 365mm GATES 10 T5 365 T 434 N60 48 855 MISC EDGING 14x18mm BLACK SCANDI LOC A S BEST NR 209 0203 49 026 MISC FOAM BLOCK WITH LINER PUR 8 x 4mm BLACK DAFA A S CO V 790 B 8 T 4 51 123 MISC TIMING BELT CROSS ELEV ECI A S 0 0 30663B 530663 MISC MAIN HAIRNESS 3 ECI A S 3 0 31948C 531948 MISC MAIN HAIRNESS 2...

Страница 132: ...ECI A S 0 0 29430 729430 MISC TRACKING RECEIVER UNIT ECI A S 0 0 29840 729840 MISC DIPLEXER UNIT ECI A S 730630 MISC UP DOWN CONVERTER UNIT ECI A S 730650 Q5 MOSFET POWER 150V 18A IRF640 IRF641 BUK456 200A MOTOROLA IRF 641 640 29 404 Q10 MOSFET POWER 150V 18A IRF640 IRF641 BUK456 200A MOTOROLA IRF 641 640 29 404 U7 POS VOLTAGE REG ADJUST Io 1 5A LM317T MOTOROLA LM317T 31 055 U8 POS VOLTAGE REG ADJ...

Страница 133: ...CONTENTS 11 ABBREVIATIONS 11 1 Inmarsat B 9849 ...

Страница 134: ...cy shift keying HPA High power amplifier IF Intermediate frequency LES Land earth station LNA Low noise amplifier LO Local oscillator MMIC Monolithic microwave integrated circuit NCSC Network co ordinating station common channel OCXO Oven controlled crystal oscillator PAX Phone and fax PLL Phase locked loop SES Ship earth station SMI Switch mode power supply and interconnection SMPS Switch mode po...

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