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MX421 Installation Manual

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Installation Manual

P/N 723594

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Summary of Contents for MX421 Series

Page 1: ...l MX421 High Precision GPS Sensor Installation Manual ...

Page 2: ...sion GPS Sensor INSTALLATION MANUAL Models Covered MX421 MX421B MX421 10 MX421B 10 MX421SB 10 Leica Geosystems Inc 23868 Hawthorne Blvd Torrance CA 90505 5908 U S A www leica geosystems com P N 723594 Rev C August 2001 ...

Page 3: ...Leica Geosystems Inc 2001 Leica Geosystems reserves the right to make changes to its products and specifications without notice ...

Page 4: ... strongly encourages you to utilize the knowledge and experience of your sales and service dealer Should you need to contact us directly for new sales upgrades repair service or technical support we can be reached at the following International Leica Geosystems Inc 23868 Hawthorne Blvd Torrance California 90505 USA 1 310 791 5300 Telephone International 1 800 97 LEICA 1 800 975 3422 Telephone USA ...

Page 5: ...ce to MK40 Chartplotter 13 Figure 6 MX421 Interface to the MK40 Chartplotter 13 Data Interface to PC or Non Leica Navigation Systems 14 Figure 7 MX421 Interface to PC or other Non Leica Navigation Systems 14 PC Interface Cable 15 Figure 8 MX421 to PC Interface Cable P N 722206 15 MX421 10 Installation Section 17 Power Requirement 18 MX421 10 Connector Configuration 19 Figure 9 Interface Cable Pin ...

Page 6: ...or MX420 AIS CDU 23 Figure 13 MX421 10 Interface to MX420 8 or MX420 AIS CDUs 23 Data Interface to PC or Non Leica Navigation Systems 24 Figure 14 MX421 10 Interface to a PC chartplotter or Other Non Leica Navigation Systems 24 Specifications 25 Data Output 27 PRODUCT WARRANTY AND LIMITATION OF LIABILITY 30 How Are We Doing 32 ...

Page 7: ... with a 10 pin power data connector This antenna can accept differential corrections from an external beacon re ceiver A 1 PPS timing output is optionally available MX421B 10 a combined GPS and Differential beacon smart antenna with a 10 pin power data connector The built in beacon receiver operates in auto mode MX421SB 10 an enhanced MX421B 10 with a controllable built in differential beacon rece...

Page 8: ... second channel searches for other available beacons Should it find a superior signal it will automatically switch the primary channel to the new station The combined performance of the high precision 12 channel GPS and 2 channel beacon receivers provide a more accurate and reliable posi tion fix usually within 1 meter or less The MX421SB 10 is an enhanced MX421B 10 DGPS smart antenna unit that ca...

Page 9: ...re are slight differences in Pins 7 10 for each model which are indicated in Table 1 The two additional pins 9 10 on the newer production MX421 are used to output the 1 PPS signal Table 1 MX421 Smart Antenna Configuration 8 Pin Conn old 10 Pin Conn new Pin Wire Color MX421 GPS MX421B DGPS MX421 10 GPS MX421B 10 DGPS 1 BLK SHIELD Negative Ground 2 RED 10 5 32 VDC 3 BLU Leica Proprietary Message LPM...

Page 10: ...the MX421 Sensor Description Part Number 8 Pin Type MX421 723240 or MX421B 723241 Antenna Cable Assy 10 m 8 wire cable 722569 MX421 Installation Manual 723594 10 Pin Type MX421 10 726233 or MX421B 10 726232 or Antenna Cable Assy 15 m 725637 10 wire cable MX421 Installation Manual 723594 ...

Page 11: ...5 MX421 Installation Manual MX421 High Precision GPS Sensor Installation Manual Figure 1 MX421 Sensor Standard Package ...

Page 12: ... mount it permanently Installation Procedure Antenna Mounting Bracket Mount The MX421 mounting thread is an industry standard fitting for VHF antenna mount ing 1 0 inch 14 TPI This enables the antenna to be mounted on a wide range of mounting brackets including the swivel joints commonly used for angled surface Refer to Fig 2 for bracket mounting illustration Note Hand tighten the antenna onto the...

Page 13: ...obstructions or metal fixtures in the immediate proximity to the an tenna The GPS antenna relies on direct line of sight signal reception If you are unsure that the chosen location is suitable it is advisable to mount the antenna in a temporary manner to verify correct operation Mounting Surface 1 Diameter 14 TPI Metal Mounting Bracket not supplied Drill 1 4 diameter hole for cable access Secure c...

Page 14: ...8 MX421 Installation Manual ...

Page 15: ...9 MX421 Installation Manual MX421 Installation Section Use this section when installing the MX421 or the MX421B with 8 pin connector ...

Page 16: ...DC An in line fuse or circuit breaker rated at 2 amp is recommended for overload protection When the MX421 is connected to a Leica control display unit CDU the antenna power can be supplied by the CDU unit The red wire connects to the 12 VDC power while the black wire is the negative return Although the MX421 has a reverse polarity protection it is prudent to make sure that proper polarity is obse...

Page 17: ...in assignments 8 2 3 4 5 6 7 1 Pin Wire Signal 8 White N C 7 Yellow N C 6 Green GPS Out 5 Orange GPS Out 4 Brown LPM IN 3 Blue LPM IN 2 Red 12 VDC 1 Black GND Figure 4 Interface Cable Pin Configuration for MX421 Where Pins 1 2 are used for GND and 12 VDC input Pins 3 4 Leica proprietary message LPM input port Pins 5 6 GPS output to the MK40 MX420 CDU or other NMEA 183 compatible devices Pins 7 8 N...

Page 18: ...ring and pin assignments for the MX421B antenna The output on pins 5 and 6 can be optionally set to output GGA at 5 Hz The standard NMEA 0183 protocol is the factory default setting Data output change may be done only in the factory 8 2 3 4 5 6 7 1 Pin Wire Signal 8 White Beacon OUT 7 Yellow Beacon OUT 6 Green GPS Out 5 Orange GPS Out 4 Brown LPM IN 3 Blue LPM IN 2 Red 12 VDC 1 Black GND Figure 5 ...

Page 19: ...own below Only three wires from the MX421 or MX421B cable are used namely RED 12 VDC Black Shield Negative Return and Signal GND GREEN GPS Data TxD BRW N C WHT RxD GRN 12 V RED GND SHD CN1 RX DG TXD GND 12V Pin 6 Green GPS OUT Pin 1 Black Shield GND Pin 2 Red 12 VDC MX421 MX421B To MK40 Figure 6 MX421 Interface to the MK40 Chartplotter ...

Page 20: ...ion systems using a terminal strip and DB9 connector user supplied items to terminate the wires Pin 6 Green GPS OUT Pin 1 Black Shield Gnd Pin 2 Red 12 VDC 2 Amp Fuse 1 2 6 GPS Data Out Common GND To Navigation PC Terminal Strip Red Green Black Shield 1 2 3 4 5 6 7 8 9 DB9 Connector Female Figure 7 MX421 Interface to PC or other Non Leica Navigation Systems ...

Page 21: ...re 8 The cable and connectors are pre assembled to simplify equipment hookup between the PC and MX421 Antenna power can be connected to a 12 volt battery through the cigarette lighter adapter This cable assembly can be purchased from any Leica authorized representatives Figure 8 MX421 to PC Interface Cable P N 722206 ...

Page 22: ...16 MX421 Installation Manual ...

Page 23: ...17 MX421 Installation Manual MX421 10 Installation Section Use this section when installing the MX421 antenna with the 10 Pin connector only ...

Page 24: ...VDC An in line fuse or circuit breaker rated at 2 amp is recommended for overload protection When the MX421 is connected to a Leica control display unit CDU the antenna power can be supplied by the CDU unit The red wire connects to the 12 VDC power while the Black wire is the negative return Although the MX421 has a reverse polarity protection it is prudent to make sure that proper polarity is obs...

Page 25: ...Figure 9 Interface Cable Pin Configuration for MX421 10 Where Pins 1 2 are used for GND and 12 VDC input Pins 3 4 Leica proprietary message LPM input port Pins 5 6 GPS output to the MK12 MX420 CDU or other NMEA 183 compatible devices Pins 7 8 connect to an external beacon receiver like the Leica MX41R Pins 9 10 1 Pulse Per Second PPS output External Differential Beacon Receiver Connection Differen...

Page 26: ...ith this configuration 1 Pin Wire Signal 10 Prpl Gry 1 PPS 9 Purple 1 PPS 8 White Beacon Status Out 7 Yellow Beacon Status Out 6 Green GPS Out 5 Orange GPS Out 4 Brown LPM IN 3 Blue LPM IN 2 Red 12 32 VDC 1 Black Negative GND 2 3 4 5 6 7 8 9 10 Figure 10 Interface Cable Configuration for MX421B 10 and MX421SB 10 Where Pins 1 2 are the GND and 12 VDC power input Pins 3 4 Leica proprietary message L...

Page 27: ...0 connection to the MK40 terminal box is shown below Only three wires from the MX421 or MX421B cable are used namely RED 12 32 VDC Black Negative Return and Signal GND GREEN GPS Data TxD BRW N C WHT RxD GRN 12 V RED GND SHD CN1 RX DG TXD GND 12V Pin 6 Green GPS OUT Pin 2 Red 12 VDC MX421 10 MX421B 10 To MK40 Pin 1 Black Gnd Figure 11 MX421 10 Interface to the MK40 Chartplotter ...

Page 28: ...Wht 1 Shield Blk Shield GND Grn GPS Out Org GPS Out Brn LPM In Blu LPM In 8 Org 9 Org Wht 10 Yel 11 Yel Blk In A In A In B In B Out A Out A Out B Out B 4 Brn 5 Brn Wht NMEA2 Tx RS 232 Ext Alarm 6 Prpl 7 Prpl Wht 12 Grn 13 Grn Wht 14 Blu 15 Blu wht 17 Gry 18 Blk Wht 3 Blk 12 32 VDC Supply NMEA1 I O NMEA2 I O MX420 2 or Mk12 CDU MX421 10 MX421B 10 Cable A Figure 12 MX421 10 Interface to a MX420 2 an...

Page 29: ...y 18 Gray Blk Terminal Strip User Supplied Red 12 VDC 16 Red Wht 1 Shield Blk Shield GND Grn GPS Out Org GPS Out Brn LPM In Blu LPM In 8 Org 9 Org Wht 10 Yel 11 Yel Blk In A In A In B In B Out A Out A Out B Out B 4 Brn 5 Brn Wht NMEA2 Tx RS 232 Ext Alarm 6 Prpl 7 Prpl Wht 12 Grn 13 Grn Wht 14 Blu 15 Blu wht 17 Gry 18 Blk Wht 3 Blk 12 32 VDC Supply NMEA1 I O NMEA2 I O MX420 8 or MX420 AIS MX421B 10...

Page 30: ...systems using a terminal strip and DB9 connector user supplied items to terminate the wires Pin 6 Green GPS OUT Pin 1 Shield GND Pin 2 Red 12 VDC 2 Amp Fuse 1 2 6 GPS Data Out Common GND To Navigation PC Terminal Strip Red Green Black 1 2 3 4 5 6 7 8 9 DB9 Connector Female Figure 14 MX421 10 Interface to a PC chartplotter or Other Non Leica Navigation Systems ...

Page 31: ... p h 950 m s 4G 39 2 m s s Time to first fix Cold start no almanac or other data 120 sec Typical 150 sec 90 prob able Warm start almanac last fix position and time known 48 sec typical 60 sec 90 probable Reacquisition time 40 sec Blockage 2 sec Typical Position accuracy With differential corrections 1 meters depending on distance from differential base station Without differential corrections 3 me...

Page 32: ...nal to noise ratio at 200 bps data rate In very quite locations and with a data rate of 50 bps a level of 20 dbuV m will provide a usable signal Input Output interface NMEA 0183 signal levels optically isolated input at 4800 baud MSK rates 100 and 200 automatic or manual selection Physical Characteristics Size Height 3 1 2 in 89 mm Diameter 7 1 8 in 182 mm Weigh MX421 1 1 lbs 500 gm without cable ...

Page 33: ...ng data formats NMEA GGA GLL GRS GSA GSV GST VTG RMC ZDA MSS Leica proprietary messages TBD NMEA 0183 Data Output Sentences 1 GGA Global Positioning System Fix Data Time position and fix related data for a GPS receiver GPGGA hhmmss llll llll a yyyyy yyyy a x xx x x x x M x x M x x xxxx hh CR LF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Notes 1 UTC of position 2 3 Latitude N S ...

Page 34: ...x xx xx xx xx xx xx xx xx xx xx xx xx x x x x x x hh CR LF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Notes 1 Mode M Manual forced to operate in 2D or 3D Mode A Automatic allowed to automatically switch 2D 3D 2 Mode 1 Fix not available 2 2D 3 3D 3 14 PRN numbers of satellites used in solution null for unused fields 15 PDOP 16 HDOP 17 VDOP 3 GSV GPS Satellite in View Number of satellites SV in view ...

Page 35: ...by RMB when a destination waypoint is active RMC and RMB are the recommended minimum data to be provided by a GPS receiver All data fields must be provided null fields used only when data is temporarily unavailable GPRMC hhmmss ss A llll llll a yyyyy yyyy a x x x x xxxxxx x x a hh CR LF 1 2 3 4 5 6 7 8 9 10 11 Notes 1 UTC of Position fix 2 Status A data valid V Navigation receiver warning 3 4 Lati...

Page 36: ...pment to Buyer whichever is longer SELLER S MAXIMUM LIABILITY ARISING FROM USE OF SELLER S PRODUCT SHALL NOT EXCEED AND BUYER S REMEDY IS LIMITED IN ANY EVENT TO REPAIR OR REPLACEMENTAND REIMBURSEMENT FOR COSTSASSOCIATED WITH THE RETURN OF THE DEFECTIVE PRODUCT AS PROVIDED HEREIN AND SUCH REMEDY SHALL BE THE BUYER S ENTIREAND EXCLUSIVE REM EDY This warranty does not apply to failure of any equipme...

Page 37: ...ENT SHALL SELLER BE LIABLE FOR INCIDENTAL OR CONSEQUEN TIAL DAMAGES OFANY KIND OR NATURE INCLUDING BUT NOT LIMITED TO LOSS OF PROFIT OR REVENUE COMMERCIAL LOSS DAMAGE TO OR LOSS OF PROPERTY ARISING FROM OR RELATED TO THE USE OF THE PRODUCT ...

Page 38: ...earer are there any errors and if so where and what are they Be sure to reference the title and identification number of this manual Installation Manual P N 723594 and include your name address and telephone number We look forward to finding out how we can improve our information services All of your comments and suggestions become the property of Leica Please send them to Leica Geosystems Inc 238...

Page 39: ..._______________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ ________________________________________________________________...

Page 40: ...34 MX421 Installation Manual Place Stamp Here Leica Geosystems Inc 23868 Hawthorne Blvd Torrance CA 90505 5908 USA ...

Page 41: ...Leica Geosystems Inc 23868 Hawthorne Blvd Torrance CA 90505 USA Phone 1 310 791 5300 Fax 1 310 791 6108 www leica geosystems com ...

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