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USERS MANUAL

NR2110-R/O/G

REVISION

DATE

120120

Page #:

2 of 47

www.novuspower.com

Contents

Summary ......................................................................................................................... 3
Controls and Indicators

– Front Panel ............................................................................. 5

GNSS Status ............................................................................................................... 7

GNSS Receiver - Standard ............................................................................................. 9

GNSS Receiver-High Performance ............................................................................... 14

Error! Bookmark not defined.

UTC Mode ....................................................................

Error! Bookmark not defined.

GMT Offset ...................................................................

Error! Bookmark not defined.

Power Switch ............................................................................................................ 23

Rear Panel .................................................................................................................... 23

Functional Description ................................................................................................... 27
Phase Noise .................................................................................................................. 28

Outputs ..................................................................................................................... 29
Built-in Test ............................................................................................................... 29
Power Supplies ......................................................................................................... 29

Crystal ........................................................................................................................... 29
Calibration ..................................................................................................................... 36
Programming Guide (RS232 Status Port) ...................................................................... 36

7.1 RS232 Commands (Status Port) ......................................................................... 37
Status String ($GPNVS,1) Fault Bytes ...................................................................... 40
Status String ($GPNVS,2) Channel Values ............................................................... 41
Status String ($GPNVS,3) Power Supply Values ...................................................... 42

Technical Specification .................................................................................................. 43

Performance .............................................................................................................. 43
Environmental and Mechanical .................................................................................. 44

LIMITED HARDWARE WARRANTY ............................................................................. 45
Appendix: GNSS Command Reference ......................................................................... 47

Содержание NR2110-G

Страница 1: ... G 10MHz Frequency Reference PPS GNSS Locked Dual Channel with Rubidium Holdover All information provided herein is the property of Novus Power Products LLC The information included may be reproduced without the permission of Novus Power Products LLC for the purpose of operating the equipment ...

Страница 2: ...ror Bookmark not defined GMT Offset Error Bookmark not defined Power Switch 23 Rear Panel 23 Channel Output BNC 23 Antenna Input A B SMA 23 Antenna Connection with GNSS option only 24 DC Input 24 AC Input 25 RS232 DB9 Status 25 RS232 DB9 NMEA 26 Ethernet Port 27 Functional Description 27 Phase Noise 28 Outputs 29 Built in Test 29 Power Supplies 29 Crystal 29 Calibration 36 Programming Guide RS232 ...

Страница 3: ...S GNSS locked frequency reference and PPS source While locked to the GPS the OCXO reference is continually being disciplined in frequency and its internal PPS is aligned to UTC PPS within 50 ns If GPS is lost the unit uses the disciplined Rubidium or OCXO as the master time reference The PPS remains aligned to UTC PPS with a drift rate of 40us day Rb less than 5 ms day OCXO assumes 24 hours of GPS...

Страница 4: ...curve which can be seen in the sample production test below NR2110 O G PHASE NOISE MEASUREMENT The unit features extensive reporting via the rear panel RS232 port equipment status output voltage on each channel By being able to monitor the output voltage the user can detect cabling issues that cause an impedance change and replace cabling before it completely fails Reporting is also easily accessi...

Страница 5: ...all the way to the antenna or a single antenna can be used with a splitter located inside the chassis Controls and Indicators Front Panel The three LEDS provide a comprehensive status of the unit ALERT This LED should always be GREEN There are several self tests executed within the unit and the summation of these tests is that the unit is functional A RED indication is a failure and the unit shoul...

Страница 6: ...h troubleshooting a fault problem GPNVS 1 hhmmss mmddyy A nn 0x00 0x00 0x00 XX 1 2 3 4 5 6 7 8 9 10 Description Range 1 Identifier GPNVS 2 String ID 1 3 Time UTC hhmmss 4 Date mmddyy 5 GPS Lock Valid A Valid V Not Valid 6 of Sats in View Greater of GPS or GNSS count 7 Channel Fault Byte 0x00 to 0x3F Hex OR d value 8 Power Supply Fault Byte 0x00 to 0x3F Hex OR d value 9 Error Message Byte 0x00 to 0...

Страница 7: ...l The 26 channel high sensitivity high accuracy multi GNSS receiver supports TRAIM GPS GLONASS QZSS SBAS Active Anti Jamming and Advanced Multipath Mitigation functions The more advanced receiver meets the most stringent 5G timing requirements is ideal for global deployments due to GPS BeiDou Galileo and GLONASS reception and is unaffected by ionospheric errors The module provides differential tim...

Страница 8: ...USERS MANUAL NR2110 R O G REVISION B DATE 120120 Page 8 of 47 www novuspower com High Stability Allan Deviation Standard Receiver Allan Deviation Performance ...

Страница 9: ...ndard The 26 channel GNSS receiver and companion elements generate the GNSS PPS and NMEA serial link The serial link conforms to NMEA 0183 protocol GPS GLONASS QZSS SBAS Active Anti Jamming and Advanced Multipath Mitigation functions Supports concurrent GPS GLONASS SBAS and QZSS Galileo ready Sensitivity GPS Tracking 161 dBm Hot Start 161 dBm Warm Start 147 dBm Cold Start 147 dBm Reacquisition 161...

Страница 10: ... 2 D position fix or a poor 3D fix due to insufficient satellite geometry i e poor DOP It may not be possible to update a position fix inside a building or beneath a bridge The receiver can operate in 2 D mode if it goes down to seeing only three satellites by assuming its height remains constant But this assumption can lead to very large errors especially when a change in height does occur A 2 D ...

Страница 11: ...cts the area formed by the other two This intersection occurs at just two points A fourth satellite is then used to synchronize the receiver clock to the satellite clocks In practice just four satellite measurements are sufficient for the receiver to determine a position as one of the two points will be totally unreasonable possibly many kilometers out into space This assumes the satellite and rec...

Страница 12: ...S232 port What can be controlled is a function of the configuration being used The PPS source can be from the receiver the Rubidium or a synthesized PPS Standard Receiver Source Factory default is 200ms and can be programmed in 1 ms increments to 500 ms High Performance Receiver When the Rubidium option is chosen the PPS generated by the Rubidium is used and cannot be programmed PPS Availability T...

Страница 13: ... be considered The PPS can also be enabled or disabled based upon a calculated accuracy Cable Delays The unit can be programmed to compensate for PPS errors due to cable length A compensation factor of 100000 ns can be used Pulse Width The pulse width can be programmed from 1 to 500ms Factory Default Settings PPS on when estimated accuracy is within 1 usec Pulse width is 200ms ...

Страница 14: ... meets the most stringent 5G timing requirements is ideal for global deployments due to GPS BeiDou Galileo and GLONASS reception and is unaffected by ionospheric errors The module provides differential timing mode for highly accurate local timing and built in security for highest robustness against malicious attack ...

Страница 15: ... alert threshold indicates a shorted line while a channel status above the alert threshold window indicates a potential disconnected cable The threshold value at which a channel alert is triggered can be programmed on the alert threshold screen or programmed via the RS232 port Once set the unit will continue to monitor each channel and a deviation beyond the set limits would be reported as a failu...

Страница 16: ...lt when any single channel is outside the user defined threshold Power Supply Status with optional DC supply The power supply status screen provides DC voltage values of the two available power supply sources The 90 250V AC input is internally connected to an internal 24V AC DC convertor which powers the internal supplies with 24V This is diode connected with the external 24V DC input which can be...

Страница 17: ...results in an alert condition will be reported in the power supply status byte 0x80 External AC not connected 0x40 External DC not connected If the optional external DC power supply is requested redundant power supplies will operate on either the AC input or DC input and function independently All functionality and reporting for an individual power supply and amplifier is independent of its redund...

Страница 18: ...ize 10 Cable Range 50 85mm_p_1340 html MS16M23F Socket Contact for Holes A B https www amphenol sine com MS16M23F Socket Contact Size 16 Machined Gold Flash Wire Range 75 15mm C2 B2 16 18 AWG Compatible to part RC16M23J 192991 0041_p_921 html MS20W23F Socket Contact for Holes 1 2 https www amphenol sine com _p_941 html A is V and is a Red 18 AWG wire B is V and a Black 18 AWG wire 1 is Ground is a...

Страница 19: ... has a reference voltage which can be set by latching the channel s current value in the latch channel average screen The output reference voltage can be set individually by writing the value serially with the SET command After saving the current configuration on a channel any subsequent deviation on that channel which exceeds the alert threshold percentage will trigger an alert Steps to ensure co...

Страница 20: ...USERS MANUAL NR2110 R O G REVISION B DATE 120120 Page 20 of 47 www novuspower com The alert threshold can be optimized so that a channel short or an impedance change will cause an alert ...

Страница 21: ...s The Channel 1 output is lower than 1 00Vrms To adjust the alert threshold from the front panel hold the NEXT and SELECT buttons down simultaneously for two seconds The percentage value will begin flashing To increase the value press the SELECT button To decrease the value press the NEXT button When the desired value is reached press the NEXT and SELECT button simultaneously to leave the settings...

Страница 22: ... by the user There are two ways to set the reference voltage The RS232 serial port allows for setting an individual channel s reference voltage with the SET command The user can also use the latch channel values to take a snapshot of all current outputs and use these as the reference values Save Configuration The save configuration screen allows the user to save the current settings for alert thre...

Страница 23: ...ply the unit will operate In other words the front panel switch will not remove power if the optional DC input is powered The AC and DC input option provides a redundant and automatic backup source in the case of failure of either input Rear Panel Channel Output BNC There are two10MHz output on the rear panel BNC 50Ω Nominally the outputs are 50 Ohm impedance Antenna Input A B SMA SMA female Inter...

Страница 24: ... Bandwidth 25 MHz typical 3dB points Polarization Right Hand Circular Power Requirements 5 0 25 VDC Power Consumption 26mA 5 VDC typical Novus NA103A Novus NA106 DC Input Pin A goes to the most positive DC voltage of the DC source For a 24V source input this would be the positive output from the DC source Pin B goes to the most negative voltage of the DC source For a 24V source input this would be...

Страница 25: ...ides status strings as well as command responses Configuration and status commands are detailed in the NR2110 Programmer s Manual Section 5 0 RS232 Serial Port Rear Panel Pin Connections Pin Function I O 1 NC 2 Command Port TX O 3 Command Port RX I 4 NC 5 GND GND 6 NC 7 NC 8 NC 9 NC The default settings for the rear panel RS232 port are 115200 baud 8 bits 1 stop bit no parity Optionally the PPS ca...

Страница 26: ...rt is provided for NMEA 0183 output For communication protocol see attached Appendix A RS232 Serial Port Rear Panel Pin Connections Pin Function I O 1 NC 2 NMEA Port TX O 3 NMEA Port RX I 4 NC 5 GND GND 6 NC 7 NC 8 NC 9 NC The default settings for the NMEA RS232 port are 38400 baud 8 bits 1 stop bit no parity ...

Страница 27: ...USERS MANUAL NR2110 R O G REVISION B DATE 120120 Page 27 of 47 www novuspower com Ethernet Port An Ethernet port RJ 45 connects to the network via static address of 192 168 7 200 Functional Description ...

Страница 28: ... Page 28 of 47 www novuspower com Phase Noise Low phase noise contribution is achieved through careful PCB design component selection and minimization of power supply noise Below is a typical phase noise performance for a 10 MHz reference application ...

Страница 29: ... This feature eliminates installation damage that occurs in designs that require an input power switch mode be used There is an EMI filter between the internal power supply and the available power being used This filter minimizes the electrical noise from entering the circuitry and negatively impacting noise performance Also in most applications the equipment that surrounds this unit is sensitive ...

Страница 30: ...AT performs very well and much easier to compensate electronically It is also a simpler crystal to manufacture than a SC cut device For applications where a stability of a few ppm is acceptable a TCXO can be a cost effective alternative The SC cut results in a much higher Q device and achieves much lower phase noise than the AT cut The device is also more sensitive to pressure and temperature vari...

Страница 31: ... 31 of 47 www novuspower com OCXO Frequency Error from Cold Start 2 00E 02 1 50E 02 1 00E 02 5 00E 01 0 00E 00 5 00E 01 1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241 Error in Hz Time in seconds Frequency Error 1 to 250 seconds ...

Страница 32: ...r for a typical OCXO stability of 1 ppb year is very common Atomic sources are very complex and while a very stable source phase noise performance may not be acceptable for many applications Typical Phase Noise Performance for a Rubidium Source For applications requiring the stability of an atomic source but also requiring low phase noise a low phase noise OCXO is disciplined to an atomic source T...

Страница 33: ...w ppb is readily achievable The GNSS is used to provide timing for a DDS direct digital waveform synthesizer While the DDS has outstanding long term accuracy the short term stability is very poor due to the nature of the timing source A GNSS timing source has considerable short term instability due to the numerous radio effects multi path signal weakness etc In order to develop a stable reference ...

Страница 34: ...USERS MANUAL NR2110 R O G REVISION B DATE 120120 Page 34 of 47 www novuspower com Kalman Filter Performance ...

Страница 35: ...91 19 9999999 998 0 209 10000000 002 0 218 20 9999999 998 0 207 10000000 002 0 194 21 9999999 998 0 206 10000000 002 0 211 22 9999999 998 0 205 10000000 002 0 197 23 9999999 998 0 208 10000000 002 0 197 24 9999999 998 0 208 10000000 002 0 200 25 9999999 998 0 205 10000000 002 0 203 26 9999999 998 0 198 10000000 002 0 199 27 9999999 998 0 193 10000000 002 0 202 28 9999999 998 0 199 10000000 002 0 2...

Страница 36: ...kept between power off cycles the command SAVEFLASH 51 CR LF will update flash to reflect all current settings Table 1 shows a complete list of input commands and descriptions In general a command may be input without or an additional value and the unit will respond with the current setting s value If the input is not understood the microcontroller will return the value 3F CR LF NOTE All commands ...

Страница 37: ...to 115200 CHANNEL FAULT THRESHOLD FACTOR FLTTHR FLTTHR FLTTHR current Channel Fault threshold factor from 0 05 to 0 95 Query or set the ratio at which the Channel output monitors report a fault For example if the FLTTHR is set to 0 15 the Channel Fault Word will report an error if the measured value is greater or less than 15 of its target value Number format must be in the form n nn FLTTHR 0 15 I...

Страница 38: ...t Channel Vrms measurement averages into memory as the average value to set the Channel Fault Threshold for each channel Latches in all outputs with respect to the active input Example Response of LATCHAVG A indicates input A is active and the channel fault thresholds for Input A will now measure against the current output values Use this command during setup after cabling to take a snapshot of th...

Страница 39: ...ut on demand when user does not require regular string output STAT1 Outputs current GPNVS 1 string on demand STAT2 GPNVS 2 Outputs current GPNVS 2 string on demand STAT3 GPNVS 3 Outputs current GPNVS 3 string on demand ACTIVATE FRONT PANEL STATUS STRINGS ACTFRP 1 ACTFRP n Set Front Panel RS232 to automatically output GPNVS strings 1 Enable 0 Disable Default ACTFRP 0 SAVE ALL VALUES TO FLASH MEMORY...

Страница 40: ...yy 15 GPS Lock Valid A Valid V Not Valid 16 of Sats in View Greater of GPS or GNSS count 17 Channel Fault Byte 0x00 to 0x3F Hex OR d value 18 Power Supply Fault Byte 0x00 to 0x3F Hex OR d value 19 Error Message Byte 0x00 to 0x0F Hex OR d value 20 NMEA Checksum XX xor d value of bytes between and Example GPNVS 1 233518 092516 A 10 0x00 0x00 0x00 62 Time 23 35 18 Sep 25 2016 GPS locked 10 Satellites...

Страница 41: ...g GPNVS 2 Channel Values GPNVS 1 hhmmss mmddyy n nn XX 1 2 3 4 5 6 Description Range 1 Identifier GPNVS 2 String ID 2 3 Time UTC hhmmss 4 Date mmddyy 5 Channel 1 Vpp 0 00 to 3 30 V 6 NMEA Checksum XX xor d value of bytes between and Example GPNVS 2 233518 092516 2 56 2 48 2 51 2 60 2 44 2 53 4E ...

Страница 42: ...ng ID 2 3 Time UTC hhmmss 4 Date mmddyy 5 8Vdc Power Supply 30 0 to 30 0 V 6 8Vdc Power Supply 30 0 to 30 0 V 7 12Vdc Power Supply 30 0 to 30 0 V 8 12Vdc Power Supply 30 0 to 30 0 V 9 5Vdc Power Supply opt 30 0 to 30 0 V 10 OCXO Control Voltage 0 00 to 3 30 V 11 NMEA Checksum XX xor d value of bytes between and Example GPNVS 3 233518 092516 7 84 7 93 11 8 12 1 0 00 1 92 42 Note Depending on config...

Страница 43: ... Reciever PPS is Dependent upon the receiver option selected Standard PPS 15ns 1σ 130 dBm 50ns 1σ 150 dBm High Stability 5ns 1σ 130 dBm 10ns 1σ 150 dBm With vibration and thermal isolation Amplitude for 1PPS 3 3 Vdc CMOS 5 Vdc option Pulse width for 1PPS Programmable 1 to 500ms in 1 usec steps Rise time for 1PPS 10 ns Connector SMA Load Impedance 50 Ohm Location rear Standard Phase Noise dBc Hz OC...

Страница 44: ...monitoring command Updated every second Connector RJ 45 Rubidium Atomic Accuracy at shipment 5 0E 11 Warm up time 15 minutes Time of lock 5 minutes 130 dBm Time to achieve accuracy 1E 9 20 minutes Aging monthly 5E 11 Aging yearly 1 0E 9 Stability Allan Deviation 1s 3E 10 10s 1E 10 100s 3E 11 Power 90 to 250 Vac 50 60Hz IEC 320 C14 30 Watts Weight 5 5 lbs Environmental and Mechanical Operating Temp...

Страница 45: ... will be charged to Buyer to cover inspection and testing costs for any item returned by Buyer under this paragraph which is found to be within specifications and or otherwise not the responsibility of NOVUS under the terms and conditions of this paragraph or any other part of this Agreement Your dated sales or delivery receipt is your proof of the purchase date You may be required to provide proo...

Страница 46: ...DIES REGARDLESS OF WHETHER ANY REMEDY SET FORTH HEREIN FAILS OF ITS ESSENTIAL PURPOSE IN NO EVENT WILL NOVUS BE LIABLE TO YOU FOR ANY SPECIAL CONSEQUENTIAL INDIRECT OR SIMILAR DAMAGES INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS PROFITS BUSINESS INTERRUPTION LOSS OF DATA OR BUSINESS INFORMATION OR OTHER PECUNIARY LOSS ARISING OUT OF THE USE OF OR INABILITY TO USE THE HARDWARE SUPPLIED...

Страница 47: ...USERS MANUAL NR2110 R O G REVISION B DATE 120120 Page 47 of 47 www novuspower com Appendix GNSS Command Reference See attached ...

Страница 48: ... GNSS Receiver Communications Specification NMEA 0183 All information provided herein is the proprietary property of Novus Power Products L L C The information included may be reproduced without the permission of Novus Power Products L L C without prior approval for purpose of operating the equipment ...

Страница 49: ...RMAT 17 6 PROPRIETARY NMEA INPUT SENTENCES 18 GNSS SATELLITE SYSTEM CONFIGURATION 4 8 19 FIXMASK SETTING OF POSITIONING AND SATELLITE MASK 4 20 PPS SETTING OF PPS PULSE PER SECOND 4 FORMAT 22 RESTART RESTART COMMAND 4 FORMAT 24 TIME SETTING OF TIME INFORMATION 4 25 TIMEZONE LOCAL ZONE TIME 4 26 SURVEY POSITION MODE 1 FORMAT 27 FREQ SETTING OF GCLK FREQUENCY 2 7 FORMAT 31 DEFLS SETTING OF DEFAULT L...

Страница 50: ...O PER SECOND PPS 4 FORMAT 44 CRY TPS3 OUTPUT TIME TRANSFER INFO PER SECOND SURVEY TRAIM FORMAT 46 CRZ TPS4 OUTPUT TIME TRANSFER INFO PER SECOND FREQUENCY 3 FORMAT 48 CRM MEASUREMENT DATA OF GPS 50 CRN NAVIGATION DATA 51 SYS ANSWER OF PVT SYSTEM 52 GPIO GENERAL PURPOSEINPUT OUTPUT FORMAT 52 FIXSESSION FIX SESSION 1 FORMAT 53 ANTSEL ANTENNA SELECTING 1 FORMAT 53 BBRAM BATTERY BACKUP RANDOM ACCESS ME...

Страница 51: ... data NMEA Standard sentence NMEA Proprietary sentence Output data NMEA Standard sentence NMEA Proprietary sentence Note 1 Communication speed can be changed into 4800 9600 19200 38400 57600 or 115200 bps Please refer to section UART1 Serial Communication Port for how to configure the communication speed In case of using low baud rate please adjust size of output sentence by NMEAOUT command and CR...

Страница 52: ... 58 2 Serial data output timing 4 The output timing of serial data is synchronous with PPS output timing Serial data is begun to output in the 25ms to 75ms range after PPS is output The time of serial data indicates next PPS output timing PPS t 1 PPS t PPS t 1 ...

Страница 53: ...cceeding pages is a wildcard meaning any valid talker ID data field Variable or fixed length fields preceded by delimiter comma Comma s are required even when valid field data are not available i e null fields Ex In a numeric field with fixed field length fill unused leading digits with zeroes checksum field 8 bits data between and excluding and are XORed and the resultant value is converted to 2b...

Страница 54: ...ength fields preceded by delimiter comma Layout is maker definable checksum field 8 bits data between and excluding and are XORed and the resultant value is converted to 2 bytes of hexadecimal letters Note that two hexadecimal letters must be preceded by and delimiter is not required before checksum All output sentences have checksum For input sentences the resultant value is checked and if it is ...

Страница 55: ...will be output every second The sentences can be independently enabled and disabled using the PERDCFG NMEAOUT and or PERDAPI CROUT command described later in this document as well as use differing transmission rates The NMEA sentence descriptions in this sentence are for reference only The sentence formats are defined exclusively by the copyrighted document from NMEA eRide does populate all the fi...

Страница 56: ...ng 1 Valid fix 2 DGPS positioning 00 12 1 8 Horizontal dilution of precision HDOP 0 0 50 0 Note A null field is output while positioning is interrupted 9 Altitude above below mean sea level geoid 10 Unit of Altitude meter M 11 Geoidal height 12 Unit of Geoidal height M 13 Age of differential GPS data n a 14 Differential reference station ID n a Example GPGGA 025411 516 3442 8146 N 13520 1090 E 1 1...

Страница 57: ...a North South 00 0000 59 9999 N or S 3 4 Longitude ddd degree 000 180 mm mmmm minute 00 0000 59 9999 5 a East West UTC hh hour E or W 00 23 mm minute 00 59 ss sss second 00 000 59 999 6 Status 6 A or V 7 Position System Mode Indication A Data Valid V Data Invalid A D or N A Autonomous D Differential N Data Invalid Example GPGLL 3442 8146 N 13520 1090 E 025411 516 A A 5F 34 deg 42 8146 min N 135 de...

Страница 58: ...oning 00 32 8 Horizontal dilution of precision HDOP 0 0 50 0 Note A null field is output while positioning is interrupted 9 Altitude above below mean sea level geoid 10 Geoidal height 11 Age of differential GPS data n a 12 Differential reference station ID n a 13 Navigation Status Indicator S C U or V S Safe C Caution U Unsafe V Not Valid Example GNGNS 004457 000 3442 8266 N 13520 1235 E DDN 22 0 ...

Страница 59: ... n a Example GNGSA A 3 09 15 26 05 24 21 08 02 29 28 18 10 0 8 0 5 0 5 1 33 GNGSA A 3 79 69 68 84 85 80 70 83 0 8 0 5 0 5 2 30 2D 3D Auto switching mode 3D fix Satellite used 09 15 26 05 24 21 08 02 29 28 10 79 69 68 84 85 80 70 83 PDOP 0 8 HDOP 0 5 VDOP 1 5 Notes 4 To adds extra fields to the GPGSA NMEA string to show more than 12 satellites used in the fix please input PERDAPI EXTENDGSA num hh C...

Страница 60: ...2 161 40 50 47 163 44 1 67 GPGSV 4 4 14 42 48 171 44 93 65 191 48 1 60 GLGSV 3 1 09 79 66 099 50 69 55 019 53 80 33 176 46 68 28 088 45 1 76 GLGSV 3 2 09 70 25 315 46 78 24 031 42 85 18 293 44 84 16 246 41 1 7A GLGSV 3 3 09 86 02 338 1 45 Not fixed Message number Total number of message checksum CR LF is output right after the last satellite data output Notes 4 In this sentence a maximum of four s...

Страница 61: ...Users manual Appendix A Revision A Date 07 14 15 Page 14 of 58 Satellite number from 93 to 99 indicates QZSS 193 to 199 ...

Страница 62: ...000 59 9999 a North South N or S 5 6 Longitude ddd degree 000 180 mm mmmm minute 00 0000 59 9999 a East West E or W 7 Speed kts 8 True Course degree 9 Date dd date mm month yy last two digits of the year 10 Magnetic declination Note A null field is output unless magnetic declination information is available 11 Correction direction of magnetic declination Note A null field is output unless magnetic...

Страница 63: ... Date 07 14 15 Page 16 of 58 Example GNRMC 012344 000 A 3442 8266 N 13520 1233 E 0 00 0 00 191132 D V 0B UTC 01 23 44 000 Differential 34 deg 42 8266 min N 135 deg 20 1233 min E Speed 0 0 kts True Course 0 0 degrees UTC Date Nov 19 2032 ...

Страница 64: ...ioning System Mode Indication A D or N A Autonomous D Differential N Data Invalid Example GNVTG 0 00 T M 0 00 N 0 00 K D 26 True Course 0 00 degrees Speed 0 00 kts 0 00 km h Mode Differential ZDA Time Date Format 1 2 3 4 5 6 1 Description UTC Time hh hour 00 23 mm minute 00 59 ss sss second 00 000 59 999 2 UTC Day of Month 01 31 3 UTC Month 01 12 4 UTC Year 1999 2099 3 5 Local Zone Hours 00 23 6 L...

Страница 65: ...Users manual Appendix A Revision A Date 07 14 15 Page 18 of 58 6 Proprietary NMEA Input Sentences These sentences are input commands for the protocol of this receiver ...

Страница 66: ...can be set to 0 or 2 for each satellite system User can also set SBAS mode to 1 Mode 0 means to disable the system Mode 1 means to enable tracking only do not use in position fix etc Mode 2 means to enable tracking and use the in position fix calculation In GT 87 default setting of SBAS mode is 1 because to use calculation data of SBAS tends to reduce the accuracy of 1PPS Therefore although GT 87 ...

Страница 67: ...lites indicated by this field are not used in the position fix calculation Lowest order bit means SV 01 Highest order bit means SV 32 4 8 Prohibit SVs GLONASS 28BIT HEX 0 GLONASS Satellite number mask Each bit represents one SVID The GLONASS satellites indicated by this field are not used in the position fix calculation Lowest order bit means SV 65 Highest order bit means SV 92 4 9 Prohibit SVs Ga...

Страница 68: ...PS BIT9 SVID 9 GLONASS mask GLONASS BIT1 SVID 65 SBAS mask SBAS BIT18 SVID 50 Notes It is applied not only to First Fix or the time of a positioning return but to all thepositioning It is omissible after the 7th field The response which is inserted current value to each field is obtained by receiving aneffective command for setting or inputting a command which is omitted the fields after Command N...

Страница 69: ...to 1 0 PPS output interval 0 1PPS A pulse is output per second 1 PP2S A pulse is output per two seconds 5 pulse width 1 to 500 200 PPS pulse width ms 6 cable delay 100000 to 100000 0 PPS cable delay ns Plus brings delay PPS Minus brings forward PPS 7 polarity 0 to 1 0 PPS polarity LEGACY PPS is rising edge only 0 rising edge 1 falling edge 8 PPS accuracy threshold 5 to 9999 1000 PPS estimated accu...

Страница 70: ...nment of PPS by TIMEALIGN command The default is UTC USNO As for details please refer to the page of TIMEALIGN command The condition of PPS synchronization is the follow 1 GPS alignment 2 UTC USNO alignment default PPS mode Before first fix After first fix After taking UTC USNO parameter from GPS 0 OFF OFF OFF 1 Sync with RTC Sync with GPS Sync with UTC USNO 2 4 OFF Sync with GPS Sync with UTC USN...

Страница 71: ... Notes 4 As for the differences depending on the restart mode please refer to the page of Backup of the Receiver Parameters for BBRAM The data which is stored by FLASHBACKUP command in Flash is not cleared even if FACTORY restart is occurred Power off on of GT 87 corresponds to hot restart when it is within 4 hours after last fix Power off on of GT 87 corresponds to warm restart when it is over 4 ...

Страница 72: ... conditions User needs not to set initial time because time is decided by satellite navigation data As for GPS week rollover timing and GT 87 week rollover timing please refer to the follow event date GPS week GPS week rollover timing 1st default time of date of GT 87 1999 08 22 1024 GPS week rollover timing 2nd 2019 04 07 2048 rollover timing of GT 87 2032 08 15 2745 GPS week rollover timing 3rd ...

Страница 73: ... Format PERDAPI TIMEZONE sign hour minute hh CR LF 1 2 3 4 Num Contents Range Default Remark 1 TIMEZONE Command Name 2 sign 0 to 1 0 GMT sign 0 shows positive 1 shows negative 3 hour 0 to 23 0 GMT Hour 4 minute 0 to 59 0 GMT Minute Example PERDAPI TIMEZONE 0 9 0 69 As GMT offset display time is carried out 9 00 Notes 4 In UTC SU alignment GMT offset is changed to 3 00 automatically ...

Страница 74: ...n the threshold value is 0 it is not used 5 latitude 1 90 to 90 0 Latitude for hold position in TO mode degree A positive number means the north latitude and a negative number means the south latitude This field can be set only when position mode is 3 6 longitude 1 180 to 180 0 Longitude for hold position in TO mode degree A positive number means the east longitude and a negative number means the ...

Страница 75: ...Users manual Appendix A Revision A Date 07 14 15 Page 28 of 58 Fixed position 37 78700 degrees north 122 45100 degrees west Altitude 31 5 m ...

Страница 76: ... are configured the position mode changes to Position hold mode when either is fulfilled When the threshold value is 0 it is not used The displayed position may differ a little from the configured position due to conversion error Hot start is occurred when survey mode is shift to NAV mode 1 Flow chart about position mode Transition condition Whether keep or not survey position and number of times ...

Страница 77: ...Users manual Appendix A Revision A Date 07 14 15 Page 30 of 58 J The condition of survey is satisfied Position mode is always started by time only mode if TO mode by this condition and power off Keep ...

Страница 78: ...cle from GCLK PPS edge Example PERDAPI FREQ 1 10000000 47 Mode output Frequency 10MHz Notes It is omissible after the 4th field The response which is inserted current value to each field is obtained by receiving aneffective command for setting or inputting a command which is omitted the fields after Command Name that is PERDAPI FREQ QUERY 11 Duty cycle is derived from Thigh Tcycle in the follow fi...

Страница 79: ... leap second is kept as user setting Example PERDAPI DEFLS 16 AUTO 27 Default leap second 16 second this value is updated automatically Notes It is omissible after the 3rd field This value is used before leap second is confirmed by other factors which are to take UTC USNO parameter which is broadcasted from GPS or to take time difference between GPS and GLONASS GT 87 can store current DEFLS comman...

Страница 80: ...parameter In Glonass only mode correct default leap second is needed to output correct time 2 UTC USNO alignment Leap second is applied to output time PPS is output in synchronization with GPS before taking UTC USNO parameter from GPS PPS is output in synchronization with UTC USNO after taking UTC USNO parameter from GPS In Glonass only fix because GT 87 can t take UTC USNO parameter from GLONASS ...

Страница 81: ...d is required 1 OK UTC USNO alignment OK OK OK UTC SU alignment OK OK OK PPS GPS only fix setting GLONASS only fix setting GPS GLONASS setting GPS alignment OK OK OK UTC USNO alignment OK NG OK UTC SU alignment NG OK OK 1 In GPS alignment and GLONASS only fix setting to output correct output time user needs to set accurate default leap second by DEFLS command In this graph QZSS is treated as GPS ...

Страница 82: ... two ways to backup data 1 BBRAM BBRAM is RAM which is available to store data as long as backup current is impressed GT 87 can store ephemeris data almanac data and configuration which user sets by commands etc in BBRAM and the data is not erased even if GT 87 is turned off The backup timing of BBRAM is every second The data is cleared when user inputs RESTART command and or user turns off backup...

Страница 83: ... the sentence sec 0 The sentence s is are stopped N M 1 Sentence s is are output every event occurred 0 The sentence s is are stopped Example PERDAPI CROUT W 1 4E CRW TPS1 sentence is output every second PERDAPI CROUT XZ 3 19 CRX TPS2 sentence and CRZ TPS4 sentenced are output every 3 seconds PERDAPI CROUT W 0 4F CRW TPS1 sentence is stopped PERDAPI CROUT N 1 57 CRN sentence is output every event ...

Страница 84: ...the value is 0 the sentence is output only once After that the sentence is stopped Example PERDCFG NMEAOUT GGA 2 57 Interval 2 seconds PERDCFG NMEAOUT GSV 0 56 GSV sentence is output only once After that GSV sentence is stopped UART1 Serial Communication Port Format 1 2 Num Contents Range Default Remark 1 UART1 Command Name 2 baud 4800 9600 19200 38400 57600 or 115200 38400 Baud rate bps Example P...

Страница 85: ...s manual Appendix A Revision A Date 07 14 15 Page 38 of 58 In case of using low baud rate please adjust size of output sentence by NMEAOUT command and CROUT command to output all sentence within one second ...

Страница 86: ...ERSION Software Version Format 1 Num Contents Range Default Remark 1 VERSION Command Name Example PERDSYS VERSION 2C GPIO General Purpose Input output Format 1 Num Contents Range Default Remark 1 GPIO Command Name Example PERDSYS GPIO 67 PERDSYS VERSION hh CR LF PERDSYS GPIO hh CR LF ...

Страница 87: ...efault Remark 1 command First field of received command 2 sequence 1 to 255 0 The number of times successful for the reception It is added 1 whenever it succeeds in command reception and 0 to 255 is repeated When command reception is failed 1 is returned 3 subcommand Second token of input command Example PERDACK PERDAPI 1 PPS 72 PERDAPI PPS command input is failed Notes As for the command check su...

Страница 88: ...ap second and applies it 4 update date 14 byte fixed length 00000000000000 Leap second update schedule year month day hour minute second This date indicates zero when no leap second update schedule 5 present LS 31 to 32 3byte 16 5 Present leap second received from satellites 6 future LS 31 to 32 3byte 00 Future leap second received from satellites 7 pps status 4 0 to 3 1byte 0 Present pps is synce...

Страница 89: ...Users manual Appendix A Revision A Date 07 14 15 Page 42 of 58 Pps status present pps is sync with UTC USNO ...

Страница 90: ... Before first fix After first fix After taking confirmed leap second GPS RTC GPS GPS UTC USNO RTC GPS UTC UTC SU RTC GPS UTC About leap second which is used to adjust output time alignment Before first fix After first fix After taking confirmed leap second GPS 0 0 0 UTC USNO Default leap second Default leap second confirmed leap second UTC SU Default leap second Default leap second confirmed leap ...

Страница 91: ... than estimated accuracy threshold 4 period 0 to 1 1byte 0 1PPS output interval 0 1PPS A pulse is output per second 1 PP2S A pulse is output per two seconds 5 pulse width 001 to 500 3byte 200 1PPS pulse width ms 6 cable delay 100000 to 100000 7byte 000000 1PPS cable delay ns 7 polarity 0 to 1 1byte 0 0 rising edge 1 falling edge 8 pps type 0 to 1 1byte 0 0 LEGACY PPS 1 GCLK PPS 9 estimated accurac...

Страница 92: ...utput every second PERDAPI CROUT X 0 40 stops outputting this command Output Values of period pulse width polarity are switched by pps type LEGACY or GCLK PPS estimated accuracy means estimated difference between PPS of GT 87 and GPS UTC USNO or UTC SU timing which user sets by TIMEALIGN command This is not guarantee value but user can use this value to get a rough idea Sawtooth means correction v...

Страница 93: ...255 3byte 000 3 Sigma threshold m which changes automatically to position fixed 5 time 0 to 999999 6byte 000000 Current update times of survey position sec It is not updated at the time of positioning interruption 6 time threshold 0 to 604800 6byte 028800 3 Time threshold sec which changes automatically to position fixed 7 TRAIM solution 0 to 2 1byte 2 TRAIM solution 0 OK 1 ALARM 2 UNKNOWN due to ...

Страница 94: ...tioning mode Survey mode calculation continuously 2 Survey sigma 3 m Survey sigma threshold 1 m Survey time 2205 seconds Survey time threshold 86400 seconds TRAIM solution OK 0 TRAIM status OK 0 Removed SVs 0 Receiver status 0x00000000 Notes This command is output every second PERDAPI CROUT Y 0 41 stops outputting this command ...

Страница 95: ...curate 1 GCLK PPS and GCLK frequency are accurate 5 e 999999 to 999999 7byte Phase delay between LEGACY and GCLK PPS no dimensional 6 de 999999 to 999999 7byte Amount of change of phase delay no dimensional 7 lock cnt 0 to 999999 7byte Duration time of Lock sec 8 lockoff cnt 0 to 999999 7byte Duration time of holdover free run sec 9 reserve 0x00 to 0xFF 6byte Reserve field 10 IDtag 6byte Product n...

Страница 96: ...4 15 Page 49 of 58 PERDCRZ TPS4 1 1 0 000000 000000 000000 000000 000000 000000 0x15 0000 57 Freq mode warm up Freq status output GCLK accuracy accurate Notes This command is output every second PERDAPI CROUT Z 0 42 stops outputting this command ...

Страница 97: ...es 4 system 1 GNSS system ID 1 GPS 5 svid 1 to 99 Satellite number 6 reserve 1 to 3 Reserve field 7 snr 0 to 55 Signal to Noise Ration dB Hz 8 adr 32bit Accumulated Doppler Range Cycles LSB 6 9 doppfreq 32bit Doppler Frequency meters sec LSB 12 10 pseudorange 32bit Pseudrange meters LSB 6 Example PERDCRM 467055 9 10 1 18 2 40 251470 225117 1630912949 4C Notes This sentence will be output as a set ...

Страница 98: ...ta no parirt included Example PERDCRN 1 7 8B0B349809AC00424A2471C5FF9F27BB10C82EB5884CC987FFA50C0BF2A8 0C Notes For each GPS satellite decoding data this string is output once every 6 seconds For GPS the subframe field is a hexadecimal representation of all 10 words of a subframe If a word was not decoded or contained a parity error the six characters associated with that word will be reported as ...

Страница 99: ...ield Example PERDSYS VERSION OPUS7_SFLASH_ES2_64P ENP622A1226410F QUERY N A 1A Notes Character string of the device and version is free format GPIO General Purpose Input output Format 1 2 Num Contents Range Default Remark 1 GPIO Command Name 2 state H or L GPIO state H High L Low Example PERDSYS GPIO HHHHLLLL 4B Notes This first character represents GPIO 0 and the last character represents GPIO 8 ...

Страница 100: ...SION ON 19015 19 015 7C Notes This string is sent when certain events occur This is for eRide useonly ANTSEL Antenna selecting 1 Format 1 2 3 Num Contents Range Default Remark 1 ANTSEL Command Name 2 reserve1 reserve field 3 reserve2 reserve field Example PERDSYS ANTSEL FORCE1L 1LOW 32 Notes This string is sent when certain events occur This is for eRide useonly PERDSYS FIXSESSION reserve1 reserve...

Страница 101: ... sent when certain events occur This is for eRide useonly MSG Event Driven Message 1 Format 1 2 Num Contents Range Default Remark 1 key Alphanumeric event indicator 2 string Description of event Example PERDMSG 1A 06 Notes This string is sent when certain events occur Some strings are for eRide use only and contain only an alphanumeric key Others provide user feedback and contain description of th...

Страница 102: ... YES YES NO YES 3 Altitude YES YES YES NO YES 3 Ephemeris Ephemeris data YES NO NO NO YES 2 Almanac Almanac data YES YES NO NO YES Chart Backup of the receiver parameter of command COMMAND NAME PARAMETER HOT WARM COLD FACTORY POWER OFF ON GNSS GNSS setting YES YES YES NO YES FIXMASK FIXMASK setting YES YES YES NO YES PPS PPS setting YES YES YES NO YES TIMEZONE GMT setting YES YES YES NO YES SURVEY...

Страница 103: ...S Chart Backup of the configure parameter of command COMMAND NAME PARAMETER HOT WARM COLD FACTORY POWER OFF ON UART1 Baud rate of UART1 YES YES YES YES NO NMEAOUT NMEA output interval YES YES YES YES NO 1 The position calculated by position survey mode or input by PERDAPI SURVEY 3 2 There is a time limitation 4 hours 3 CSS continues survey mode or TO time only mode only ...

Страница 104: ...ording to the terms and conditions of this document if a repair to your NOVUS product is required during the limited warranty period Our obligation at NOVUS is limited to repair or replace products which prove to be defective Should Novus be unable to repair or replace the product within a reasonable amount of time the customer s alternate remedy shall be a refund of the purchase price upon return...

Страница 105: ...BY ANY OTHER PARTY EXCLUDED DAMAGES SHALL INCLUDE BUT ARE NOT LIMITED TO COSTS OF REMOVAL AND INSTALLATION LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON OR DAMAGE TO PROPERTY EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE THE CUSTOMERS SOLE AND EXCLUSIVE REMEDIES IN NO EVENT SHALL NOVUS BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CON...

Страница 106: ...S Appendix C GPNVS Status String Definitions All information provide herein is the proprietary property of Novus Power Products L L C The information included may be reproduced without the permission of Novus Power Products L L C with out prior approval for purpose of operating the equipment ...

Страница 107: ...Status String GPNVS 6 Status Bytes Rubidium 10 1 7 Status String GPNVS 7 Status Bytes 11 1 8 Event String GPNVS 8 Event Status 12 1 9 Status String GPNVS 9 Frequency Measurement 13 1 9 1 Standard Frequency Measurement String 13 1 9 2 NR6720 HS Frequency Measurement String 14 1 10 PPS Alignment String GPNVS 10 PPS Status 15 1 12 PPS Alignment String GPNVS 9 PPS Status 16 1 11 Response String GPNVS ...

Страница 108: ...nitoring will be set up to meet the following protocols These are designed to be standardized across different products and easy to port and use via serial to ethernet connections Many products will have some but not all of the following strings if configured for the optional status RS232 The following products comply with this document 1 ND0115 2 NR2310 OG 3 NR2315 4 NR2110 O 5 NR2110 OG Separate...

Страница 109: ... V Not Valid N N A 6 GPS 2 Lock Valid A Valid V Not Valid N N A 7 of Sats in View 1 Greater of GPS or GNSS count N N A 8 of Sats in View 2 Greater of GPS or GNSS count N N A 9 Channel Fault Byte 0x0000 to 0xFFFF Hex OR d value 10 Power Supply Fault Byte 0x00 to 0xFF Hex OR d value 11 Error Message Byte 0x00 to 0xFF Hex OR d value 12 Antenna 1 0 Ok 1 Error N N A 13 Antenna 2 0 Ok 1 Error N N A 14 N...

Страница 110: ... Date mmddyy 5 Channel 1 Vrms 0 00 to 3 30 V 6 Channel 2 Vrms 0 00 to 3 30 V 7 Channel 3 Vrms 0 00 to 3 30 V 8 Channel 4 Vrms 0 00 to 3 30 V 9 Channel 5 Vrms 0 00 to 3 30 V 10 Channel 6 Vrms 0 00 to 3 30 V 11 Channel 7 Vrms 0 00 to 3 30 V 12 Channel 8 Vrms 0 00 to 3 30 V 13 NMEA Checksum XX xor d value of bytes between and Example GPNVS 2 233518 092516 2 56 2 48 2 51 2 60 2 44 2 53 2 51 2 60 6C No...

Страница 111: ...pply 5 30 0 to 30 0 V 10 Power Supply 6 30 0 to 30 0 V 11 Power Supply 7 30 0 to 30 0 V 12 Power Supply 8 30 0 to 30 0 V 13 Built in Test BIT 0 Ok 1 Fail 14 Temperature C 40 to 99 15 NMEA Checksum XX xor d value of bytes between and Example GPNVS 3 233518 092516 7 84 7 93 11 8 12 1 0 00 0 00 0 00 1 92 0 26 62 Note Depending on configuration Power Supply values will be defined differently and some ...

Страница 112: ...te mmddyy 5 Channel 9 Vrms 0 00 to 3 30 V 6 Channel 10 Vrms 0 00 to 3 30 V 7 Channel 11 Vrms 0 00 to 3 30 V 8 Channel 12 Vrms 0 00 to 3 30 V 9 Channel 13 Vrms 0 00 to 3 30 V 10 Channel 14 Vrms 0 00 to 3 30 V 11 Channel 15 Vrms 0 00 to 3 30 V 12 Channel 16 Vrms 0 00 to 3 30 V 13 NMEA Checksum XX xor d value of bytes between and Example GPNVS 4 233518 092516 2 56 2 48 2 51 2 60 2 44 2 53 2 51 2 60 6...

Страница 113: ...s GPNVS 5 hhmmss ddmmyy nnn nn nn XX 1 2 3 4 5 6 7 8 Description Range 1 Identifier GPNVS 2 String ID 5 3 Time UTC hhmmss 4 Date mmddyy 5 Potentiometer Hex Value 000 to FFF 6 Fan PWM 0 to 90 7 Temperature 40 to 99 C 8 NMEA Checksum XX xor d value of bytes between and Example GPNVS 5 233518 092516 45 00 25 70 ...

Страница 114: ...Identifier GPNVS 2 String ID 6 3 Active PCB Assembly 0 or 1 4 GNSS Lock A Locked V Unlocked 5 Input Error 0 Ok 1 A Error 2 B error 6 Channel Status Word 0x0000 to 0xFFFF 7 Primary PS Status 0x00 to 0xFF 8 Secondary PS Status 0x00 to 0xFF 9 Active PCB Status 0x00 to 0xFF 10 Checksum Status 00 to 999 11 Channel Fault Bin 0x0000 to 0xFFFF 12 Primary PCB Amp Status 0x0000 to 0xFFFF 13 Backup PCB Amp S...

Страница 115: ...dium GPNVS 6 nnn 0x0000 nnn 0 1 XX 1 2 3 4 5 6 7 Description Range 1 Identifier GPNVS 2 String ID 6 3 Heat Sink Temperature 0 255 4 Heater Current Voltage 0x0000 0x0136 5 Measured Voltage in Heater 0 255 6 Rb Locked 0 Unlocked 1 Locked 7 NMEA Checksum XX xor d value of bytes between and Example GPNVS 9 136 0x002A 90 1 7E ...

Страница 116: ...hhmmss 4 Date mmddyy 5 GPS Lock A Valid V Not Valid 6 of Sats in View 1 Greater of GPS or GNSS count N N A 7 Error Byte 0x00 to 0xFF 8 Freq Diff 999 last count clock cycles 9 PPS Diff 999 last count clock cycles 10 Freq Correction Slice 999 DAC bits per second 11 DAC Value Integer Representation n x 1 2 20 12 Power Supply Vdc 13 Power Supply Vdc 14 NMEA Checksum XX xor d value of bytes between and...

Страница 117: ...f 1 On 5 Event Enabled System 0 Events Disabled 1 Events Enabled 6 GPS Lock Achieved 0 No Lock 2 Locked or previously locked 7 Event Index 0 512 Current count of events in RAM 8 Event Errors RAM 0 9 Event Index 0 512 Current count of events in Flash 10 Event Errors Flash 0 11 Event Time Alignmet 2 LS applied 1 GPS 0 RTC 12 Estimated Accuracy 0 999999 ns 13 Edge Detect Direction 0 Falling Edge 1 Ri...

Страница 118: ...0 1 9 1 Standard Frequency Measurement String GPNVS 9 hhmmss ddmmyy n nnnnnnn nnn nnn nn XX 1 2 3 4 5 6 7 8 Description Range 1 Identifier GPNVS 2 String ID 9 3 Time UTC hhmmss 4 Date mmddyy 5 Measured Frequency 9999900 000 to 10000100 000 6 Frequency Alert Range 0 240 units of 0 0083 Hz 7 Temperature 40 to 99 C 8 NMEA Checksum XX xor d value of bytes between and Example GPNVS 9 233518 092516 1000...

Страница 119: ...XX 1 2 3 4 5 6 7 8 9 Description Range 1 Identifier GPNVS 2 String ID 9 3 Frequency Loop Period 10000000 000 4 DAC Voltage Double 2 00000 5 Frequency per second 10000000 0 6 Loop Period 0 99 7 Antenna Current Mon 0 00 to 3 30V 8 Sine Output RMS 0 00 to 3 30V 9 NMEA Checksum XX xor d value of bytes between and Example GPNVS 9 10000000 003 1 97493 10000000 0 15 1 03 1 30 4A ...

Страница 120: ...c PPS 1 GPS PPS 6 PPS Difference 250 ns 7 PPS Avg Difference 250 ns 8 PPS Avg Count 1 20 9 PPS Synch Threshold 1 250 10 PPS pull Cal Factor 0 1 to 10 0 11 PPS active Time Cal Factor 0 to 9 12 Frequency Variance 0 9999 clock cycles per Loop period 13 Frequency Var Threshold 0 100 clock cycles per Loop period 14 PPS Stabile Mode Post Warm up 0 Off 1 On 15 PPS Slope Indicator 250 clock cycles per sec...

Страница 121: ...GPNVS 9 nnn 0x0000 nnn 0 1 XX 1 2 3 4 5 6 7 Description Range 8 Identifier GPNVS 9 String ID 9 10 Heat Sink Temperature 0 255 11 Heater Current Voltage 0x0000 0x0136 12 Measured Voltage in Heater 0 255 13 Rb Locked 0 Unlocked 1 Locked 14 NMEA Checksum XX xor d value of bytes between and Example GPNVS 9 136 0x002A 90 1 7E ...

Страница 122: ...er com 1 11 Response String GPNVS R GPNVS R n response XX 1 2 3 4 5 Description Range 1 Identifier GPNVS 2 Response ID R 3 Command Success 1 Success 0 Fail 4 Response see example responses 5 NMEA Checksum XX xor d value of bytes between and Example GPNVS R SET01 1 00 6F ...

Страница 123: ...3 Priority Discipline Source 0 GNSS 1 10MHz input 2 Optical input 4 Current Discipline Source 0 GNSS 1 10MHz 2 Optical 3 Holdover 5 GNSS Lock 0 to 3 0 Unlocked 3 Fully Locked 6 RF Present 0 No RF source 1 RF Source found 7 Opto Present 0 No Optical source 1 Optical Source Found 8 Loop Lock 1 Lock 0 Loop acquiring lock 9 Reserved 10 NMEA Checksum XX xor d value of bytes between and Example GPNVS 13...

Страница 124: ...1 17 Time UTC hhmmss 18 Date mmddyy 19 GPS Lock Valid A Valid V Not Valid 20 of Sats in View Greater of GPS or GNSS count 21 Channel Fault Byte 0x00 to 0x3F Hex OR d value 22 Power Supply Fault Byte 0x00 to 0x1F Hex OR d value 23 Error Message Byte 0x00 to 0x0F Hex OR d value 24 NMEA Checksum XX xor d value of bytes between and Example GPNVS 1 233518 092516 A 10 0x00 0x00 0x00 62 Time 23 35 18 Sep...

Страница 125: ...escription Range 14 Identifier GPNVS 15 String ID 2 16 Time UTC hhmmss 17 Date mmddyy 18 Channel 1 Vrms 0 00 to 6 60 V 19 Channel 2 Vrms 0 00 to 6 60 V 20 Channel 3 Vrms 0 00 to 6 60 V 21 Channel 4 Vrms 0 00 to 6 60 V 22 Channel 5 Vrms 0 00 to 6 60 V 23 Channel 6 Vrms 0 00 to 6 60 V 24 NMEA Checksum XX xor d value of bytes between and Example GPNVS 2 233518 092516 0 99 1 01 1 06 0 97 1 52 1 54 4E ...

Страница 126: ...0 Description Range 15 Identifier GPNVS 16 String ID 2 17 Time UTC hhmmss 18 Date mmddyy 19 5Vdc Power Supply opt 30 0 to 30 0 V 20 5Vdc Power Supply 30 0 to 30 0 V 21 10kΩ Thermistor opt 0 00 to 3 30 V 22 5Vdc Power Supply opt 30 0 to 30 0 V 23 OCXO Control Voltage 0 00 to 3 30 V 24 NMEA Checksum XX xor d value of bytes between and Example GPNVS 3 233518 092516 4 84 4 93 1 45 4 90 2 12 42 ...

Страница 127: ...hannel 14 Fault 0x1 14 Channel 15 Fault Channel Fault Bin Hex Value OR d Channel ID Channel Fault Bin 0x1 0 Channel 1 Fault External Fault The ND0100 has completed an internal amplifier gain test and both primary and backup assemblies are functional The fault is external to the ND0100 cabling short etc Amp Gain Test for Alert is enabled with AMP 1 command via RS232 0x1 1 Channel 2 Fault 0x1 2 Chan...

Страница 128: ... 9 Channel 10 Fault 0x1 10 Channel 11 Fault 0x1 11 Channel 12 Fault 0x1 12 Channel 13 Fault 0x1 13 Channel 14 Fault 0x1 14 Channel 15 Fault Backup PCB Amp Status Hex Value OR d Channel ID Backup PCB Amp Status 0x1 0 Channel 1 Fault Internal Fault Backup Assembly The channel has failed an internal gain test on the backup PCB assembly and the channel is not functional on the secondary board Amp Gain...

Страница 129: ...l 0x1 5 Reserved 0x1 6 Reserved 0x1 7 Reserved Primary and Secondary Power Supply Status Hex Value OR d Status Message 0x1 0 PS 1 Fault 0x1 1 PS 2 Fault 0x1 2 PS 3 Fault 0x1 3 PS 4 Fault 0x1 4 PS 5 Fault 0x1 5 PS 6 Fault 0x1 6 PS 7 Fault 0x1 7 PS 8 Fault Error Status Hex Value OR d Status Message 0x1 0 FLASH_NOT_FOUND 0x1 1 FLASH_NOT_SAVED 0x1 2 LOOP_VOLT_ERROR 0x1 3 ANTENNA_VOLT_ERROR 0x1 4 GPS_F...

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