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21NMEA-NX2.doc

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Latest update: 27 Jan -03

21.

NEXUS NMEA 0183

NMEA Interface Standards are intended to serve the public interest by facilitating
interconnection and interchangeability of equipment, minimising
misunderstanding and confusion between manufacturers, and assisting
purchasers in selecting compatible equipment.

This Standard defines electrical signal requirements, data transmission protocol
and timing, and specific sentence formats for a 4800-baud serial data bus. Each
bus shall have only a single TALKER but may have multiple LISTENERs.

Silva is a member of NMEA (National Marine Electronic Association), which with
over 350 members represents the most considerable part of the whole marine
electronics industry.

Full information on NEXUS NMEA is available in Appendix C: NEXUS NMEA
0183 Input/Output.
Full information on NMEA 0183 Standard is available in Appendix E: NMEA 0183
Standard for Interfacing Marine Electronic Devices. Not available from Silva.

The units within the NEXUS Network that can send and receive NMEA
Sentences are Server Unit, GPS Antenna (send only). GPS Navigator and Multi
Center.

21.1 NMEA

Input

The NMEA input to the NEXUS system can be i.e. an external GPS receiver used
to get position, course and speed over ground etc.
Always connect both NMEA input and NMEA input return. If your NMEA GPS only
has got one NMEA output, connect the NMEA input return to ground at your NMEA
GPS.

Note!

Only one NMEA Instrument can be connected to the NMEA Input.

Note!

Using NMEA transducers for wind and compass are not recommended as

the update rate is slow compared to the very fast Nexus data bus.

NEXUS general circuit for
NMEA input.

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Summary of Contents for NX2

Page 1: ...Latest update 17 Feb 03 SERVICE MANUAL Art No 20972 03 Edition No 1 ...

Page 2: ...l to start checking wiring and connections on board the boat Also the settings in Set up and calibration have to be checked before judging the instrument as faulty Faultfinding on instruments and transducers connected in a complete NX2 system on board a vessel is well supported by signal sensors on all transducer inputs of the Server With our NX2 exchange system it is possible to obtain effective ...

Page 3: ...ng guide 5 7 Server NMEA communication test 5 8 Using Multi Center to find reasons of Network faults 5 9 Return of faulty NX2 units to Agent or Silva 6 NX2 Server 6 1 Block circuit diagram 6 2 Trouble Shooting Test wave forms Server 6 3 PCB Layout with test points 6 4 Circuit Diagram 7 Log Transducer 8 Depth Transducer and System 9 Wind Transducer 9 1 Service Measures 9 2 Replacing plug connector ...

Page 4: ...vice procedure check that the customer has all basic settings correct Remedy in a NX2 system with customer claim should always start with a thorough check according to the checkpoint list see 5 5 NX2 Faultfinding Guide In most instances repair is effected by replacing the defective unit with SILVA NX2 exchange system The Server and Wind Compass and GPS transducers can be repaired The water moistur...

Page 5: ...FINDING AND TESTS ON BOARD The national SILVA distributor keeps stock of NX2 Instruments to give the customer a fast safe and quick service Equipment for trouble shooting on board 5 NX2 FAULTFINDING AND TESTS ON BOARD and Digital multi meter Repair of faulty Instruments A faulty NX2 Instrument can only be repaired by Silva due to the high precision re assembling procedure and the special routines ...

Page 6: ...1 Autopilot Inst Servo RAT 22117 7 GB 22137 2 Autopilot Inst Servo RAT 22117 7 S 22137 3 Autopilot Inst Servo RAT 22117 7 D 22137 4 Autopilot Inst Servo RAT 22117 7 F 22134 1 Wind Data 22117 4 GB 22134 2 Wind Data 22117 4 S 22134 3 Wind Data 22117 4 D 22134 4 Wind Data 22117 4 F 22135 1 Compass Data 22117 5 GB 22135 2 Compass Data 22117 5 S 22135 3 Compass Data 22117 5 D 22135 4 Compass Data 22117...

Page 7: ... 67704 1 Integrated Drive HP 40 69991 12 GB Integrated Drive HP 40 69991 12 S Integrated Drive HP 40 69991 12 D Integrated Drive HP 40 69991 12 F Connection Box NX2 Nexus Bus 21456 GB 67705 Connection Box Wind Compass Data 21453 GB 67706 MTC box 21721 GB 21730 Server Simulator 20592 2 GB Mounting instructions 20706 1 Log Temp transducer 20707 GB 20706 2 Log Temp transducer 20707 S 20706 3 Log Temp...

Page 8: ...hanged in PACKETS There are two main types of PACKETS Data Packets and New Sender Packets The Data Packet consists of a header byte followed by 1 up to max 24 bytes of data ended with a checksum byte The Data packets header byte is identified by having the parity bit 1 and bit d7 0 The remaining 7 bits are identifying the type of data that will follow 0 127 The bytes that follows the header byte i...

Page 9: ...S and WINDOWS when using the PC Interface FD art no 21248 The PC interface will convert the NX2 NEXUS half duplex data to Full Duplex data suitable for WINDOWS applications The PC interface comes with software and is supplied with a 9 pole D sub connector cable for the RS232 PC port The PC interface will be a very useful tool to control and monitor real time data or when editing Waypoints to from ...

Page 10: ... A Possible Category Each category represents one or more core functions given from a transducer i e wind speed wind angle or calculated by an instrument GPS navigational data Only one category may be activated as a category master even if multiple category instruments are available in the NEXUS Network Example 1 The Server may give away the Wind category to the Wind Data instrument on request fro...

Page 11: ...lti Control Speed Log and Autopilot instruments NEXUS Network Repeater talk listen None NX2 Multi XL instrument NEXUS Network Repeater talk listen None NX2 Multi Center NEXUS Network Repeater talk listen or NMEA 0183 input output Nav Master incl WP bank or Nav Repeater NX2 Remote Control instrument NEXUS Network Repeater talk listen None NX2 GPS Navigator instrument NEXUS Network Repeater talk lis...

Page 12: ...uments will be given a logical ID number on the Nexus Network The example shows that the instrument version number is 2 0 and the given logical ID number is 16 The bottom line will write SILVA when the NX2 Multi Control is of version 3 7 or lower the same as for Nexus Classic On NX2 Multi Control 4 1 Multi XL 1 4 and Autopilot 2 11 Instruments the bottom line will show the Server ver no e g 4 7 an...

Page 13: ... lock long 2 sec on Set to enter Set up mode Press Set and Page simultaneously Enter the code 324135 by and button and press Set to lock To unlock press Set and Page simultaneously while LOCKEd is displayed when entering the Set up Then enter the code 324135 by and button and press Set to unlock Note To lock or unlock from the Wind Data or Compass Data Set has to be pressed after entering three di...

Page 14: ...M auto initalisation or NMEA transmit fail NX2 NEXUS Server only Reset power 10 Range error depending on wrong input e g 17 70 too many minutes Correct input format 11 Remote control calibration error Command can not be executed Check connections and settings 12 No response from navigator Check navigator connection and settings 13 Waypoint not defined Define a waypoint 14 Impossible command when u...

Page 15: ...lot Servo Unit 30 General autopilot failure Reset power 31 Autopilot compass input failure in autopilot standalone connection Check compass connection at autopilot Servo Unit 32 Autopilot compass input failure in autopilot NEXUS Network connection Check compass at NEXUS Server or at the Compass Data instrument 33 Received wind data input failure Check wind wire connection 34 Autopilot calibration ...

Page 16: ... replacement system if the unit is under warranty Wind Compass and GPS transducers can be repaired If the unit is outside the warranty period the customer should be offered a restored instrument 4 2 RETURN OF FAULTY NX2 UNITS TO AGENT SILVA The SILVA NX2 exchange system is a replacement system handled by Authorised Service Agents mean that the Service Agent stocks NX2 Transducer and Instruments fo...

Page 17: ...ting up procedure in spit of 12V OK power it has to be replaced and sent to Silva for further tests 5 2 NO OR WRONG VALUE ON NX2 INSTRUMENTS Al transducer inputs on the NX2 Server are equipped with signal sensors indicating incoming signals by blinking LED s Log transducer will shift the LED on log input from on to off and vice versa for every half turn on the impeller Depth LED will blink on ever...

Page 18: ... GUIDE Multi Center can be used to find reason to system faults see 5 8 Function Display Cause Action Set up Remedy Start Blank Display No Power Check back of Instrument Green 12V Screen 0 V See 5 1 Wires Fuse Battery Err 03 No Bus signal Check back of Instrument Yellow White 4 3 V AC See 5 3 If no signal to Instrument check wires connections Bus signal out fr Server Err 03 No Bus signal Check bac...

Page 19: ... propeller stream where air bubbles are created Depth no values Poor connection or reversed connectors at the amplifier box Check connections Depth no values Internal mount poor signal penetration due to thick hull Use through hull fitting Depth no values Internal mount air between transducer and hull re install the transducer Depth wrong values Going over shallow water with uneven and high bottom...

Page 20: ... Wrong units Correct setting of units C11 Speed wrong values Incorrect calibration value Correct calibration C12 Speed wrong values Incorrect setting of damping Correct setting of damping C13 Speed wrong SOG values Incorrect setting of damping Correct setting of damping C72 Temperature No Temp Connections wires lose end Correct connect Check White to ground 1 8 V White to ground Temperature Wrong ...

Page 21: ... GSA DOP and active satellites 9 C79 GSV Satellites in view 10 C80 HDM Magnetic heading 11 C81 89 HDT True heading 12 MTW Water temperature 13 C82 MWD Wind direction and speed 14 MWV Apparent wind speed and angle 15 RMB Minimum navigation data 16 RMC Minimum specific GPS and TRANSIT data 17 18 C83 VDR Set and drift 19 C84 VHW Speed and course through the water 20 VLW Distance travelled through the...

Page 22: ...ct Network information and press ENTER and a list of the network is displayed This information may be acquired from a Nexus engineer when experience any NX2 Network problems 5 9 RETURN OF FAULTY NX2 UNITS TO AGENT SILVA In most instances repair is achieved by replacing the defective unit according to the SILVA NX2 exchange system Wind Compass and GPS transducers can be repaired The SILVA NX2 excha...

Page 23: ... develop your system The Nexus Network is capable of carrying data 10 times faster than NMEA 0183 Network Manager Principal of operation Every NX2 Navigation Network need to have a Network Manager A very typical Network Manager or bus master is the Server but even the Autopilot Servo Wind Data Compass Data instruments and GPS Navigator instrument can be a bus master A bus master is responsible for...

Page 24: ...white and yellow wire are mixed up Error 02 is more a hardware problem It e g yellow and white wire are are together and short circuit or if electronics of Autopilot is bad installed with e g long thin wires An other typical Err02 error is a bad earthing or incorrect signals e g NMEA signals on the bus NEXUS network brief introduction see 2 For full information see appendix A How to connect Light ...

Page 25: ...TA A DATA B U6 VCC U7 Reset 12V TRIM M O B CB CA WB WA ECHO LIGHT LOG U4 U8 U5 D Sub U12 Filter 8 MHz Depth Echo EEPROM U1 Bat Flash Update 12V NMEA IN OUT RS 232 U9 CPU AutoFuse 5V VCC 0V U10 AL 12V VCC U14 12V Power down detection 12V Pow in 0V NMEA GPS IN NMEA GPS IN RETURN TEMP Depth send puls U11 NMEA OUT A NMEA OUT B ALARM Q1 BUS DATA A DATA B U6 VCC U7 Reset 12V TRIM M O B CB CA WB WA ECHO ...

Page 26: ... U 62 U 62 Q 62 12 V To CPU From CPU 0 V POWER POWER OSCILLATOR FREQUENCY MODULATOR FREQUENCY MODULATOR High Voltage TRANSMITTER High Voltage TRANSMITTER FILTER FILTER AMPLIFIER AND DIGITALISER AMPLIFIER AND DIGITALISER RESONANCE FILTER HIGH Q VALUE RESONANCE FILTER HIGH Q VALUE TRANSDUCER TRANSDUCER Q 64 T 60 550Vpp 3 68 MHz U 60 4 00 MHz 3 68 MHz U 60 4 00 MHz ECHO 8V and 4V 8V and 4V U 63 U 60 ...

Page 27: ...nal at Possible reason if not Correct waveform DMM test Oscilloscope Correct wave form Err 02 or Err 03 TP 1 D1 Defect D1 12 V Err 02 or Err 03 TP 2 U1 pin 1 Defect U1 5 V Err 02 or Err 03 TP 3 CPU not running Defect processor U9 AC 2 2V Err 02 or Err 03 TP 4 5 U6 pin 6 U6 pin 7 No Bus signal out Defect U6 DC 0 6 0 8V ...

Page 28: ...n if not Correct waveform DMM test Oscilloscope Correct wave form Err 02 or Err 03 TP 6 U 6 Pin 1 No Bus to U6 Defect processor U9 Err 02 or Err 03 TP 7 U 6 Pin2 3 No Bus to U6 Defect processor U9 Err 02 or Err 03 TP 8 U 6 Pin 4 No Bus to U6 Defect processor U9 No Speed TP 9 U8 pin 6 Deffect U8 ...

Page 29: ...eason if not Correct waveform DMM test Oscilloscope Correct wave form No Depth TP 10 Long SPL can indicate no echo Deffect Depth Amp No Depth TP10 Deffect Depth Amp Short SPL can indicate OK echo No Depth TP11 If no echo check Depth Amp No Wind value TP WA TP WB U4 Pin 4 chan A Pin 10 chan B ...

Page 30: ...n B No NMEA out signal on Term 3 TP 12 NMEA out terminal 3 on J1A If no NMEA signal on TP12 check TP13 if OK signal defect U11 No NMEA out signal on D sub pin 2 TP 14 NMEA out signal on D sub pin 2 If no NMEA signal on TP14 check TP13 if OK signal defect U 5 NMEA in test Connect term 3 NMEA out to NMEA in term 10 11 to ground and check at TP 15 Optocoupl U12 pin 6 If no NMEA signal on TP15 defect ...

Page 31: ...on 8 GSA DOP and active satellites 9 C79 GSV Satellites in view 10 C80 HDM Magnetic heading 11 C81 89 HDT True heading 12 MTW Water temperature 13 C82 MWD Wind direction and speed 14 MWV Apparent wind speed and angle 15 RMB Minimum navigation data 16 RMC Minimum specific GPS and TRANSIT data 17 18 C83 VDR Set and drift 19 C84 VHW Speed and course through the water 20 VLW Distance travelled through...

Page 32: ...63ServLayoNX2 doc Page 1 Latest update 17 Feb 03 6 3 PCB Layout with Test points NX2 Server TP 1 TP 2 TP 3 TP 4 5 TP 7 TP 6 TP WA TP WB TP 9 TP CB TP CA TP 12 TP 15 TP 16 TP 10 TP 11 TP 8 TP 13 TP 14 ...

Page 33: ... 17 Feb 03 6 4 Circuit Diagram NX2 Server TP 1 TP 2 TP 15 TP 14 TP 16 TP 13 TP 5 TP 4 TP 8 TP 6 TP 7 TP WA TP WB TP CB TP CA TP 9 TP 3 TP 12 TP 1 TP 2 TP 15 TP 14 TP 16 TP 13 TP 5 TP 4 TP 8 TP 6 TP 7 TP WA TP WB TP CB TP CA TP 9 TP 3 TP 12 ...

Page 34: ...641DeptDiagNX2 doc Page 1 Latest update 7 Jan 03 6 41 Circuit Diagram Depth Amp NX2 Server TP 10 TP 11 TP 10 TP 11 ...

Page 35: ...rted to pulses of 5 V The water stream will give 7 pulses m equal to 12964 pulses per Nautic mile Technical specifications Dimensions Through hull fitting 42 x 86 mm 1 5 8 x 3 3 8 Transducer cable 8 m 26 2 ft Power supply 12 V DC 10 18 V Power Consumption 12 mW Accuracy 1 Speed range 0 2 30 knots Temperature range Storage 30 to 80 C 22 to 176 F Operation 10 to 70 C 14 to 158 F Connections Green 12...

Page 36: ...el is not rotating freely due to sea grass particles or bottom paint Check the opening edge of the through hull fitting If the boat is launched a piece of sandpaper can be wrapt around the lower part of the dummy plug and used for grinding the whole b One ore both paddle wheel magnets are lost or have no magnitic strength Replace the paddle wheel if defect P N 18490 TEMPERATURE SENSOR The Temperat...

Page 37: ...mounting of the transducer affects the dynamic performance of the depth system Therefore the customer has to make sure of that the choice of internal mounting works in his boat to full satisfaction If not he has to make a through hull mounting Trouble tracing The Depth reading have to be considered as the most delicate measurement when it comes to Marine Instruments Not only that the ratio between...

Page 38: ...ide hull mounting hull to thick or trapped with air Or to little liquid in pipe 3 Jumpy or erratic readings In a propeller stream where air bubbles are created E g when powering astern or when following close behind a power boat When going over shoal water with uneven and high bottom vegetation In heavy layers of salt or noticeable ranges of water temperatures In heavily agitated water containing ...

Page 39: ...m white area but not from the black on the ball to the sensors This gives the origin for the pulses with different quota high low signals out from the transducer The shape of the black and white area is designed so that pulse quotas from respective channel describes a sinus curve The turning angle wind angle is transmitted via two signals A and B sinus and cosinus One period corresponds to one tur...

Page 40: ... CHANNELS 9 0 1 Calibration of Wind Transducer To get accurate wind angle read out in the NX2 system the Wind transducer has to be calibrated for the C 55 to C62 settings Repair at SILVA Sweden will always be followed by a Calibration Certificate from the Calibration jigg ...

Page 41: ...scoloured Replace Nosecone P N 20727 9 1 4 Missing or faulty wind data Damaged Displa ced Opto reader Adjust Opto or rep lace PCB P N20077 9 1 7 Electrical Fault Source of error Remedy Chapter Missing wind data Bad or damaged connector Replace or repair the plug connector 9 2 No pulses or only in one channel from the Amplifier Defect PCB Replace PCB P N 20077 9 1 7 if ball or opto element is displ...

Page 42: ...ess Be sure of that no glue can emerge inside the transducer The mast top unit must irrespective of which part has been taken apart or replaced be properly sealed when re assembled Do the following Propeller cone Housing Gasket 19478 Without gasket new calibration is needed see 9 0 1 Wind vane Housing Gasket 19478 or silicone glue Housing Bottom washer Gasket 19031 Use also silicone glue on both c...

Page 43: ... new gasket art no 19478 The gasket must be placed against the back side of the cone b Mount the screws and put the nose cone in place Ensure that gasket is not twisted round any screw Important Remove the wind vane Check that the opto element is not in contact with the ball or head when turning the head 360E See illustr below 9 1 4 REPLACING NOSECONE Part No 20727 Dismantling a Unscrew the four s...

Page 44: ...th nut and lift up the inner tube and replace defect bearings Re assembly In opposite order but note the following Re solder wires according to 9 1 7g Be careful with the wires when they are put through the hole in the bottom of inner tube Bend them as illustrated before the amplifier PCB is pressed down in place 9 1 7 Replacing amplifier PCB As the opto elements characteristics are adjusted and t...

Page 45: ...nd them as fig shows before the amplifier PCB is pressed down in place Be aware of that the component side of the PCB is facing forward If the PCB gets stuck in the slots remove the lacquer on the edges of the PCB Important Remove the wind vane Check that the opto element has a space of 1 0 to 1 5 mm to the ball all around when turning the head 360 Also check that the opto element do not touch any...

Page 46: ...94MtuDiagNX2 doc Page 1 Latest update 7 Jan 03 9 4 Circuit Diagram NX2 WIND TRANSDUCER ...

Page 47: ... pin device art no 18848 Pin and socket configuration The numbers are marked at each pin and socket Mast Cable Transducer Note Old NX2 NEXUS Function Transducer 1 Green 12 Volt Red 2 Brown Screen 0 Volt Ground Black 3 Yellow Channel A White 4 White Channel B Blue Press each pin and socket device Place the cap over the plug connector at place with a screw driver on the rim Put silicone 18892 on pin...

Page 48: ...gnal are related to the magnetic field strength The advantage is that the high resolution signal can easily be transmitted up to 100 m with a shielded cable without degradation The fluxgate compass will give one sine and one cosine PWM heading signal output The two PWM signals Sine Cosine are only represented as a ratio between each other The pulse frequency is nominal 15 Hz 2Hz and a duty cycle o...

Page 49: ...e NX2 Multi Control Multi Center or NX2 Remote Control instrument and will perform an Automatic deviation and an Automatic check Adjustment of the A fault and local magnetic variation can also be done The values are stored in 10 year minimum EEprom memory without any need of battery backup Technical specification FEATURES Liquid dampened and fully gimballed sensor un sensitive to resonance frequen...

Page 50: ...45 Fault indication Check signal at Possible reason if not Correct waveform DMM test Oscilloscope Correct wave form No output signal TP 1 Defect V1 or LC 1 12 V No output signal TP 2 Defect U2 8 V No output signal TP 3 4 U 3 Pin 1 resp 2 Defect U3 DC 4 V No output signal TP 5 U 7 Pin 5 No Not possible pulse ...

Page 51: ...NX2 doc Page 2 Latest update 14 Feb 03 Fault indication Check signal at Possible reason if not Correct waveform DMM test Oscilloscope Correct wave form No output signal TP 6 7 U 7 Pin 10 resp 12 Not possible pulse ...

Page 52: ...ndication Check signal at Possible reason if not Correct waveform DMM test Oscilloscope Correct wave form No output signal TP 1 Defect V1 D3 or LC 1 12 V No output signal TP 2 Defect U1 8 V No output signal TP 3 U 2 Pin 1 and U4 pin 6 Defect U2 AC 1 4 V No output signal TP 4 5 U 4 Pin 3 resp pin 5 No Not possible pulse ...

Page 53: ...ge 2 Latest update 14 Feb 03 Fault indication Check signal at Possible reason if not Correct waveform DMM test Oscilloscope Correct wave form No output signal TP 6 U 3 Pin 4 DC 4 V No output signal TP 7 Q8 and Q4 pin 3 DC4 V ...

Page 54: ...104DIAGRNX2 DOCn 03 Latest update 11 Feb 03 TP 2 TP 5 TP 6 TP 7 TP 4 TP 3 TP 1 ...

Page 55: ...1041diagr35nx2 doc Latest update 11 Feb 03 TP 1 TP 2 TP 6 TP 9 TP 4 TP 3 TP 7 TP 5 ...

Page 56: ... bus or used stand alone connected to a log transducer The Auto Pilot Instrument is the control unit in a NEXUS Auto Pilot system It can be used as a standalone unit or as a part in a NX2 network system with the Server The reference to which the Autopilot shall steer on can be selected Heading Wind or towards a Waypoint Also direct power steer of the rudder The Autopilot can be controlled also by ...

Page 57: ...tected Power consumption at 12 V MULTI Control instrument 9 mA at 12 V 0 11W with maximum lighting 40 mA at 12 V 0 48W Server 27 mA at 12 V 0 3W Temperature range Storage 30 to 80 C 22 to 176 F Operation 10 to 70 C 14 to 158 F Weight MULTI Control instrument 260 gram 9 17 oz Server 240 gram 8 5 oz Enclosure MULTI Control instrument Water proof acc to IP 68 IP66 Server Splash proof CE Approval The ...

Page 58: ...nd boat speed Possible transducers for the Compass Data are Compass Log and Temperature transducer With all transducers connected you have all Compass functions including Steer functions dead reconing and boat speed There are also multiple trim possibilities with the external trim button for the racers as well as the cruisers Both the NX2 Wind and Compass Data the instrument can be used as a Netwo...

Page 59: ...trument 9 mA at 12 V 0 11W with maximum lighting 40 mA at 12 V 0 48W Log and temp transducer 12 mW Wind transducer 50 mW Temperature range Storage 30 to 80 C 22 to 176 F Operation 10 to 70 C 14 to 158 F Weight Compass Data instrument 260 gram 9 17 oz transducer 650 g 23 oz Wind Data instrument 260 gram 9 17 oz transducer 293 g 10 33 oz Enclosure Water proof acc to IP 68 IP66 CE Approval The produc...

Page 60: ... The NEXUS Network offers a wide range of analog repeaters with superior readability particularly at night Furthermore this gives you a more active instrument which can show trends and tendencies over the course and the boat performance The analog Steer Pilot instrument in particular offers unique functions You need a digital Network instrument to be able to use an analog repeater Service measures...

Page 61: ... instruments are polarity protected Power consumption at 12 V 70 90 mA at 12 V 0 8 1 1W with maximum lighting 140 160 mA at 12 V 1 7 1 9W Temperature range Storage 30 to 80 C 22 to 176 F Operation 10 to 70 C 14 to 158 F Weight 260 gram 9 17 oz Enclosure All Analog instrument Water proof acc to IP 68 IP66 CE Approval The products conform to the EMC requirements for immunity and emission according t...

Page 62: ...a NX2 instrument series is build according to IP68 IP66 standard which means that the instruments are sealed and can not be opened The basic service measures on Multi XL instruments are based on Faultfinding see 5 replacing defect units according to the NX2 Replacement system Technical specifications Dimensions Multi XL Instrument 110 x 154 x 23 mm 4 3 x 6 1x 0 9 inch Instrument cable 8 m 26 ft Po...

Page 63: ...eaters up to nine units It offers a control of the MULTI XL repeaters It offers the possibility to customise the display with your two favourite functions It can be configured to hide pages you do not want to use or conceal from curious hands Service measures The basic service measures on all NX2 Remote Control instrument are based on Faultfinding see 5 replacing defect units according to the NX2 ...

Page 64: ...ce measures on NX2 GPS Navigator instrument are based on Faultfinding see 5 replacing defect units according to the NX2 Replacement system Technical specifications Dimensions NX2 GPS Navigator instrument 113 x 113 x 23 28 mm 4 4 x 4 4 x 0 9 1 1 inch Instrument cable 0 4 m 16 inch Power supply 12V DC 10 16V The instruments are polarity protected Power consumption at 12 V Instrument 9 mA at12 V 0 11...

Page 65: ... replaced in its hole For Faultfinding see 5 replace defect electronics according to the NX2 Replacement system Technical specifications Dimensions Diameter 108 x 49 mm 4 2 x 1 9 inch Instrument cable 10 m 32 8 ft Power supply 12V DC 6 16V The instruments are polarity protected Power Consumption at 12 V 100 mA at 12 V 1 2W Temperature range Storage 30 to 80 C 22 to 176 F Operation 10 to 70 C 14 to...

Page 66: ...will get maximum integration with all information available on the screen of the Multi Center The Multi Center has a high contrast super twist LCD with a resolution of 320x240 pixels The display may be customised for special needs choice of size on the plotter screen with extremely fast zooming that allows rapid change between overview and detailed zoom level The screen amplifier function will aut...

Page 67: ...to 80 C 22 to 176 F Operation 10 to 70 C 14 to 158 F Weight 700 gram 24 7 oz Enclosure Splash proof CE Approval The products conform to the EMC requirements for immunity and emission according to EN 50 081 1 and EN55022 20 1 Dismantling and re assembly Unscrew the five screws in the back cover Remove the white 8 pin connector from the PCB Remove the 12 wire flat cable connector from the Display bo...

Page 68: ...nt 67608 SPACER Screw 21652 6 Cable 6 m with connector 21653 Connector CXA female 21587 Back Cover 20 3 MultiCenter software update instructions To do the update a NavChart with a later software program is needed 1 Turn MultiCenter off 2 Insert the NavChart into MultiCenter s chart slot 3 Turn MultiCenter on 4 Wait for the message UPGRADE CARTRIDGE FOUND On the screen you can now verify that you h...

Page 69: ...cket 4x10 INOX 21828 Front Protection Cover 67607 Cover Cartridge 67609 Casing 67608 Spacer PCB Components 21768 U2 Smittrigger inverter SO 14 22063 U6 U15 Buffer 74HCT245D TSSOP 21034 U8 U14 IC Op Amp Comp LM 393P SO 8 21034 U8 IC Op Amp Comp LM 393P SO 8 20461 U21 Tranciever LTC1483 Bus Circuit SO 8 U22 IC 74VHCT244 Buffert Inverter TSSOP Okänd 19758 Q7 Transistor BC807 40 or 25 SOT23 19759 Q10 ...

Page 70: ...y Full information on NEXUS NMEA is available in Appendix C NEXUS NMEA 0183 Input Output Full information on NMEA 0183 Standard is available in Appendix E NMEA 0183 Standard for Interfacing Marine Electronic Devices Not available from Silva The units within the NEXUS Network that can send and receive NMEA Sentences are Server Unit GPS Antenna send only GPS Navigator and Multi Center 21 1 NMEA Inpu...

Page 71: ...ually for each slot The complete period for all slots are 2 seconds so the time between each slot is 0 125 sec All data that is not available will be sent with null fields Checksum is added only where it is mandatory Talker ID address character 1 and 2 is always II Integrated Instrumentation The following sentences can be selected from MULTI Instrument Remote Control or Multi Center The NX2 Server...

Page 72: ...007 L N V V 145 03 M 004 IIAPB A A 00 007 L N V V 147 53 T 004 147 52 T T 29 IIBOD 147 53 T 145 03 M 004 000 IIBWC 101515 5912 890 N 01812 580 E 147 52 T 145 02 M 15 649 N 004 IIBWC 147 52 T 145 02 M 15 647 N 004 IIBWR 101516 5912 890 N 01812 580 E 147 52 T 145 02 M 15 647 N 004 IIDBT 293 52 f 089 47 M 048 36 F IIDPT 089 47 0 40 IIGLL 5926 110 N 01756 171 E 101517 A IIHDM 026 M IIHDT 029 T IIMTW 1...

Page 73: ...Point is reached it will restart with the first again All WayPoint IDs are sent as a three digits minimum number It is possible to send and receive WayPoints from any block of 100 WayPoints by setting C78 WBN WayPoint Base Number equal to the wanted block number Example If C78 is set to 03 WP 23 will be transmitted as number 323 Note All WP IDs will be equally affected ZDA contains only UTC time n...

Page 74: ...ket back All NX2 Instrument 22047 Grip knob for instrument mounting All NX2 Instrument 22048 Stud bolt for instrument mounting All NX2 Instrument 20608 4 pole jack plug grey yellow white ground NX2 Nexus Classic 22121 4 pole pin plug fo Server Transducer NX2 Server 20539 1 Power supply cable 3 m black NX2 Nexus Classic 20539 3 Power supply cable 3 m red NX2 Nexus Classic 20535 Connector Set 5 pcs ...

Page 75: ...cpl with cable etc Nexus Wind Transducer 19218 Tension screw plastic Nexus Wind Transducer 19224 Nut M16 plastic Nexus Wind Transducer 19221 Clamp ring Nexus Wind Transducer 19242 Tube pin FRP 5x20 Nexus Wind Transducer 19210 Attachment Nexus Wind Transducer 18252 Plug connector Nexus Wind Transducer 18839 Capacitor 10uF 25V Lyt Nexus Wind Transducer 67400 15 Mast top adapter 15 degree aluminum fo...

Page 76: ...thout predrilled holes 21754 4721 Instrument panel 472mm predrilled for 4 x 110x110mm instr 21754 4722 Instrument panel 472mm predrilled for 1 x 110x110mm instr 2 x Multi XL 21754 5900 Instrument panel 590mm without predrilled holes 21754 5901 Instrument panel 590mm predrilled for 5 x 110x110mm instr 21754 5902 Instrument panel 590mm predrilled for 2 x 110x110mm instr 2 x Multi XL 19763 Remote pus...

Page 77: ...inor Major Electrical Customers detailed fault description How does the fault show itself Tests Digital Instrument Starts with 12V OK Fail LCD OK Fail Light OK Fail Buttons OK Fail Buzzer OK Fail Error Err02 Err03 Other Err OtherFault Test Analoge Instrument Starts with 12V OK Fail Light OK fail Pionter lose Not correct value Not same value as on Multi Control OtherFault Tests Server Power 12V OK ...

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