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Users manual

NR2316-OG

Revision #:

Date:

5/4/18

Page #:

45 of 50

www.novuspower.com

Primary and

Secondary

Power Supply

Status

Hex Value (OR'd)

Status Message

0x1<<0

Source Input A out of range

0x1<<1

Source input B out of range

0x1<<2

Digital PS out of range

0x1<<3

Analog (+) PS out of range

0x1<<4

Analog (-) PS out of range

0x1<<5

Communication Failure

0x1<<6

DC Power not present (option)

0x1<<7

AC Power not present

Active Board

Hex Value (OR'd)

Status Message

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 Test for Alert is

enabled with $AMP=1

command via RS232

0x1<<1

Channel 2 Fault

0x1<<2

Channel 3 Fault

0x1<<3

Channel 4 Fault

0x1<<4

Channel 5 Fault

0x1<<5

Channel 6 Fault

0x1<<6

Channel 7 Fault

0x1<<7

Channel 8 Fault

0x1<<8

Channel 9 Fault

0x1<<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

Содержание NR2316-OG

Страница 1: ...316 OG 16 Channel GPS Locked OCXO Frequency Reference 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 2: ...21 2 14 Power Switch 22 3 0 Rear Panel 23 3 1 Channel Ouputs BNC 23 3 2 Antenna Input A B SMA 24 3 3 DC Input 24 3 4 AC Input 25 3 5 RS232 DB9 Front NMEA Status 26 3 6 RS232 DB9 Rear Linux Console Debug 27 4 0 Functional Description 28 4 1 Phase Noise 29 4 2 Outputs 30 4 3 Built in Test 30 4 4 Power Supplies 30 5 0 Crystal 31 6 0 Calibration 36 7 0 Programming Guide RS232 Port Front and Rear 37 7 ...

Страница 3: ...d to the OCXO during loss of GPS lock conditions These coefficients are updated after eight hours of continuous GPS locked state This effectively eliminates long term OCXO changes Excellent aging characteristics are achieved through the use of intrinsically low jitter overtone SC cut crystals in a temperature controlled oven There are ten outputs on the rear panel BNC connectors Low phase noise is...

Страница 4: ... manual NR2316 OG Revision E Date 5 4 18 Page 4 of 50 www novuspower com The NR2316 OG delivers a low phase noise curve which can be seen in the sample production test below NR2316 OG Phase Noise Measurement ...

Страница 5: ... impedance change and replace cabling before it completely fails Reporting is also easily accessible via the front panel display Nominal power is global AC power but a DC power option can be ordered that acts as the back up power supply Nominally 24 vdc this port is used for power when AC power fails Switching between power sources is automatic and there is no transient power outage at the equipme...

Страница 6: ...Users manual NR2316 OG Revision E Date 5 4 18 Page 6 of 50 www novuspower com ...

Страница 7: ...h the menus In general the NEXT button advances through the menus to the next screen while the SELECT button chooses between the available values on a menu Menus that allow selectable adjustments are the Input Threshold Alert Threshold and the Attenuation setting To adjust these values from the front panel hold down both buttons for two seconds until the value begins to flash To leave the menu wit...

Страница 8: ... Lock Time and Date The time zone will be UTC by default but the hour can be offset to the local time in the UTC Offset menu Changes to UTC offset and Hour mode will be reflected on this screen but will not change the NMEA output data 2 2 GNSS Detailed Status The GNSS Status Menu gives the user a quick reference for the quality of the GNSS satellite signal and length of time that each receiver has...

Страница 9: ... via the RS232 port Once set the unit would continue to monitor each channel and a deviation beyond the set limits would be reported as a failure on the front panel and via RS232 The Channel Status feature can quickly detect a cabling failure Any change in the load impedance will change the output voltage with respect to the divider formed by the output impedance of the amplifier and the load impe...

Страница 10: ...pply failure The Alert LED will not flash RED if any valid input signal is present Oven LED OCXO option only The Oven LED will illuminate red to indicate an Oven Failure Oven LED Onboard GPS The Oven LED will illuminate steady green if all onboard GPS GNSS units are locked The LED will flash green if at least one unit is unlocked Fault LED The Fault LED will illuminate flashing red to indicate a C...

Страница 11: ...y of DC input levels Contact Novus for options The values of both DC supplies are measured internally to validate connections The measured values of the AC DC convertor and the DC input are reported in the third and fourth fields of the second GPNVS status string For details on the status strings see Programmer s Guide In addition to direct value measurements each redundant system has a Power Supp...

Страница 12: ... 4 18 Page 12 of 50 www novuspower com Redundant power supplies operate on either the AC input or DC input and function independently If a communications failure is reported the backup system will automatically switch to the redundant system ...

Страница 13: ...nce Voltage which can be set all at once by latching the channels current value in the Latch Channel Average Screen Each channel s 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 ...

Страница 14: ...Users manual NR2316 OG Revision E Date 5 4 18 Page 14 of 50 www novuspower com The Alert Threshold can be optimized so that a channel short or an impedance change will cause an Alert ...

Страница 15: ...1 output is lower than 1 00Vrms The Channel 2 Alert will report when The Channel 2 output is higher than 1 08Vrms The Channel 2 output is lower than 0 72Vrms 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 NEX...

Страница 16: ...Vrms as a default but can be set 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 2 8 PPS Status The PPS from the active GPS is monitored to verify output is ...

Страница 17: ...e Disable screen The GPS settings will be displayed for each GPS receiver whether AUTO PPS ENABLD PPS or DISABLD PPS If the option of a second GPS was not ordered N A will be indicated The PPS measurement will indicate ACTIVE PPS if the output measures a PPS present If the PPS is not present due to the Warmup Period not having been completed while in AUTO PPS mode the screen will indicate WARMUP W...

Страница 18: ...and 10MHz outputs There are four settings and these are the same as the serial command GPS Setting Description Serial Command GPS 1 GPS 1 is used as output regardless of lock status or error GPS 0 GPS 2 GPS 2 is used as output regardless of lock status or error GPS 1 AUTO 1 GPS 1 is default if locked and no errors else GPS 2 is used GPS 2 AUTO 2 GPS 2 is default if locked and no errors else GPS 1 ...

Страница 19: ... allows the user to save the current settings for Alert Threshold Input Threshold Attenuation Input Select Reference Voltage and any other settings that have been modified via the RS232 port To save the current settings press the SELECT button twice The Save Configuration action is equivalent to the SAVEFL command on the serial port ...

Страница 20: ...em All internal power supplies are monitored 24V 8V 8V 5V on both the primary and backup systems A failure on one of these supplies will be indicated with a PS FAIL fail warning for either system A communication failure would be indicated by a Com FAIL indicator Either of these fault statuses will result in the change of the primary to the backup system The individual statuses of the internal powe...

Страница 21: ...e displayed time If GMT mode is selected no offset will be applied to the displayed time 2 13 GMT Offset With 24 hour mode or 12 hour mode the user can choose to align the displayed hour with their current time zone Using the SELECT button toggle to the desired offset The offset will decrement through the 24 hour period from UTC 11 to UTC 12 etc Adjusting the GMT offset will affect the displayed d...

Страница 22: ...controls AC Power input to the unit If the optional DC input is provided with 24V or a valid DC supply 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 ...

Страница 23: ...sion E Date 5 4 18 Page 23 of 50 www novuspower com 3 0 Rear Panel 3 1 Channel Outputs BNC There are 16 outputs across the left hand side of the rear panel They are labeled 1 through 16 Nominally the outputs are 50 Ohm impedance ...

Страница 24: ...3 DC Input The DC input connector is a 3 pin Amphenol circular connector P N DL3102A10SL 3P The mating connector is available as P N DL3106A10SL 3S The default DC input voltage is 24Vdc Custom voltage ranges can be provided from 60Vdc to 60Vdc Pin A goes to the most negative voltage of the DC source For a 24V source input this would be the ground or return output from the DC source Pin B goes to t...

Страница 25: ...Users manual NR2316 OG Revision E Date 5 4 18 Page 25 of 50 www novuspower com 3 4 AC Input The AC input accepts 90 250Vac 50 60Hz IEC 320 C14 Compliant ...

Страница 26: ...rocessor provides status strings as well as command responses Configuration and status commands are detailed in the NR2316 Programmer s Manual Section 5 0 RS232 Serial Port Front 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 38400 baud 8 bits 1 stop bit no parity ...

Страница 27: ...ver This RS232 level port defaults as the console stdin stdout and can be accessed by your favorite terminal program such as PuTTY using a Serial Com port The default baud rate is 115200 8 bit no parity 1 stop bit Note Remember to check the pinout RS232 Serial Port Rear Panel Pin Connections Pin Function I O 1 NC 2 Command Port RX I 3 Command Port TX O 4 NC 5 GND GND 6 NC 7 NC 8 NC 9 NC ...

Страница 28: ...Users manual NR2316 OG Revision E Date 5 4 18 Page 28 of 50 www novuspower com 4 0 Functional Description ...

Страница 29: ...e 29 of 50 www novuspower com 4 1 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 30: ...tatuses or Vrms values can be monitored as well as power supply health 4 4 Power Supplies The unit is designed to accept power in the range of 90 to 264VAC 50 to 60 Hz This allows global application The design is such that no action need be taken to operate from global power types This feature avoids installation damage that occurs in designs that require an input power switch mode be used There i...

Страница 31: ...se a AT cut crystal and electronically compensate the device with temperature An OCXO device uses a SC stress compensated crystal and the part is held at a fix temperature to minimize temperature drift The TCXO implementation results in a temperature stable reference in the single digit parts per million An OCXO device affords a reference that is almost 2 orders of magnitude more stable than the T...

Страница 32: ...cations 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 variation is mounted in temperature controlled hermetic chamber OCXO oven temperature is in the range of 90 C The devices heat up and become stab...

Страница 33: ... 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 Th...

Страница 34: ...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 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 the...

Страница 35: ...Users manual NR2316 OG Revision E Date 5 4 18 Page 35 of 50 www novuspower com Kalman Filter Performance ...

Страница 36: ...e 36 of 50 www novuspower com 6 0 Calibration NR2316 OG The frequency is phase frequency locked to the GPS signal and no adjustment is required The Auto Calibration feature tunes the OCXO and stores the calibration coefficients in non volatile memory ...

Страница 37: ...mmands 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 should be prefixed with and followed by cr lf Checksum can be enabled which requires the command to be followed by an asterisk and a two digit hex value...

Страница 38: ...te will report an error if the measured Vpp is lower than 0 3V INPTHR 0 20 Setting Command Response Description AMPLIFIER TEST ENABLE REDUNDANT AMPLIFIER OPTION AMP AMP current AMP setting Enables an amplifier gain test when fault is triggered If AMP 1 when a fault occurs on a specific channel the controller will switch to the backup amplifier assembly and check the open circuit gain of the affect...

Страница 39: ...channel Reference values to their current average amplitude use the Latch Average Channel Values command SET01 1 00 SET02 1 00 SET03 1 00 SET15 1 00 LATCH AVERAGE CHANNEL VALUES LATCHAVG LATCHAVG currently Selected input Latches the current 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 t...

Страница 40: ...ranslate all current variables to flash string and write Data is then read back for verification and result reported RESET ALL TO DEFAULT RESETALL RESET FLASH VARIABLES Resets all user settings to default values and overwrites flash memory with defaults INVALID INPUT Command not recognized STATUS STRING QUERY GPNVS n STAT1 TO STAT13 GPNVS 1 GPNVS 13 Output a single specific status string 1 13 Use ...

Страница 41: ...nipulated by frequency assist to remain in GPS alignment but with low jitter Returns a 0 value if not ready Also enables disables STBWU 1 Enable PPS stabilization if ready 0 Disable ENABLE PPS STABILIZATION ON WARMUP STBWU STBWU 1 Enable PPS Stabilization mode when warmup and GNSS lock is complete This value is saved to flash and allows the unit to recover PPS Stabilization mode after power cycle ...

Страница 42: ...onization This value is measured from a 4 cycle 20ns delay from the GPS PPS to the Synth PPS ensuring center exactly at point of discipline To move the PPS pulse either advance or delay use the receiver command PERDAPI PPS from Appendix A Note While frequency variance is greater than PSVAR PPS will still be forced to synchronization 250 ns PPS DRIFT CALIBRATION FACTOR PSCAL PSCAL 0 5 In PPS stabil...

Страница 43: ...lt 0x1 3 Channel 4 Fault 0x1 4 Channel 5 Fault 0x1 5 Channel 6 Fault 0x1 6 Channel 7 Fault 0x1 7 Channel 8 Fault 0x1 8 Channel 9 Fault 0x1 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 Channel Fault Bin Hex Value OR d Channel ID Channel Fault Bin 0x1 0 Channel 1 Fault External Fault The ND0100 has complete...

Страница 44: ...e OR d Channel ID Primary PCB Amp Status 0x1 0 Channel 1 Fault Internal Fault Primary Assembly The channel has failed an internal gain test on the primary PCB assembly and the channel is not functional on the primary board Amp Gain Test for Alert is enabled with AMP 1 command via RS232 0x1 1 Channel 2 Fault 0x1 2 Channel 3 Fault 0x1 3 Channel 4 Fault 0x1 4 Channel 5 Fault 0x1 5 Channel 6 Fault 0x1...

Страница 45: ...annel 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 Test for Alert is enabled with AMP 1 command via RS232 0x1 1 Channel 2 Fault 0x1 2 Channel 3 Fault 0x1 3 Channel 4 Fault 0x1...

Страница 46: ...served 0x1 7 Reserved 8 0 Technical Specification 8 1 Performance 10 MHz Sine 1 0 0 1 Vrms 16 channel 50 Ohm BNC Locked Accuracy 3E 11 200 seconds Temp Stability 10 ppb unlocked Daily Aging 5 ppb unlocked Yearly Aging 50 ppb unlocked typically 10 ppb after 30 days auto calibration Remote interface control Protocol RS232 NMEA 0183 Connector DB 9 Location Rear panel Protocol Bit plus stop Standard B...

Страница 47: ...mic Accuracy at shipment 5 0E 11 Warm up time 15 minutes Time of lock 5 min 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 SSB Phase noise for 10Mhz Standard 10Hz 125dBc 100Hz 145dBc 1000Hz 155dBc 10000Hz 155dBc PPS Amplitude for 1PPS 3 3 Vdc CMOS 5 Vdc option Pulse width for 1PPS Programmable 1 to 50...

Страница 48: ...o 250 VAC 50 60hz IEC 320 C14 or 24 VDC contact factory for options Phase Noise 105 dBc Hz 1 Hz 135 dBc Hz 10 Hz 150dBc Hz 100Hz RS232 Serial Status Port Status channel voltages Ethernet Port RJ45 option SNMP Environmental and Mechanical Operating Temperature 0 to 50C non condensing Storage Temperature 40 to 70C Height 1RU 1 73 Width 19 0 inch Depth 13 0 inch AC input 90 to 250 VAC 50 60Hz less th...

Страница 49: ...edy shall be a refund of the purchase price upon return of the product to Novus The liability of NOVUS under this warranty is limited to replacing repairing or issuing a credit at its option for any such item returned by Buyer under the terms of this warranty EXCLUSIONS The above warranty shall not apply to defects resulting from improper or inadequate maintenance by the customer customer supplied...

Страница 50: ...EMEDIES 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 CONNSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY 10 0 Appendix GNSS Command Reference See attached ...

Страница 51: ... 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 52: ...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 53: ...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 54: ... 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 55: ... 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 56: ...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 57: ...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 58: ...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 59: ...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 60: ...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 61: ...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 62: ... 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 63: ...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 64: ...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 65: ...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 66: ... 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 67: ...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 68: ...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 69: ...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 70: ...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 71: ...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 72: ...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 73: ...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 74: ... 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 75: ... 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 76: ... 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 77: ...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 78: ...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 79: ... 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 80: ...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 81: ...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 82: ... 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 83: ...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 84: ...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 85: ... 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 86: ... 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 87: ...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 88: ...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 89: ...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 90: ...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 91: ...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 92: ...Users manual Appendix A Revision A Date 07 14 15 Page 42 of 58 Pps status present pps is sync with UTC USNO ...

Страница 93: ... 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 94: ... 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 95: ...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 96: ...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 97: ...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 98: ...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 99: ...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 100: ...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 101: ...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 102: ...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 103: ...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 104: ... 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 105: ... 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 106: ...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 107: ...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 108: ...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 109: ...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 110: ...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 111: ...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 112: ... 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 113: ... 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 114: ...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 115: ...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 116: ...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 117: ...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 118: ...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 119: ...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 120: ...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 121: ...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 122: ...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 123: ...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 124: ...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 125: ...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 126: ...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 127: ...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 128: ...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 129: ...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 130: ...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 131: ... 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 132: ...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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