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Users manual

NR2110-OG

Revision #:

Date:

3/17/17

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25 of 46

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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:

Содержание NR2110-OG

Страница 1: ...OG Single 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 p...

Страница 2: ...put A B SMA 21 3 3 DC Input 21 3 4 AC Input 22 3 5 RS232 DB9 22 3 6 Ethernet Port Serial Ethernet Bridge 23 4 0 Functional Description 24 4 1 Phase Noise 25 4 2 Outputs 26 4 3 Built in Test 27 4 4 Pow...

Страница 3: ...Users manual NR2110 OG Revision J Date 3 17 17 Page 3 of 46 www novuspower com...

Страница 4: ...the OCXO during loss of GPS lock conditions These coefficients are updated after two hours of continuous GPS locked state This effectively eliminates long term OCXO changes Excellent aging characteri...

Страница 5: ...anual NR2110 OG Revision J Date 3 17 17 Page 5 of 46 www novuspower com The NR2110 OG delivers a low phase noise curve which can be seen in the sample production test below NR2110 OG Phase Noise Measu...

Страница 6: ...a the rear panel RS232 port Equipment status output voltage on each channel and redundancy status By being able to monitor the output voltage the user can detect cabling issues that cause an impedance...

Страница 7: ...er outage at the equipment level The primary power supply is followed by low noise linear converters assemblies There will be one in a non redundant configuration Each power supply supplies one of the...

Страница 8: ...reen 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...

Страница 9: ...acquired the status will change to 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...

Страница 10: ...hreshold 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 would continue to monitor each channel and a dev...

Страница 11: ...e Alert LED will illuminate flashing red to indicate A GNSS failure or a power supply failure The Alert LED will not flash RED if any valid input signal is present Oven LED OCXO option only The Oven L...

Страница 12: ...e 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...

Страница 13: ...ested 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...

Страница 14: ...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...

Страница 15: ...Users manual NR2110 OG Revision J Date 3 17 17 Page 15 of 46 www novuspower com The Alert Threshold can be optimized so that a channel short or an impedance change will cause an Alert...

Страница 16: ...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 flas...

Страница 17: ...ays 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 snapsh...

Страница 18: ...th 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...

Страница 19: ...displayed time If GMT mode is selected no offset will be applied to the displayed time 2 11 GMT Offset With 24 hour mode or 12 hour mode the user can choose to align the displayed hour with their cur...

Страница 20: ...ls 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 if the front panel switch will not remove power if the optional DC...

Страница 21: ...ndary input The active amplifier is selected and connected to the BNC through a solid state relay 3 2 Antenna Input A B SMA SMA female Internal 3 3V Supply 45mA max 3 3 DC Input The optional DC input...

Страница 22: ...s monitoring The embedded processor provides 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...

Страница 23: ...y The same serial commands and status output are present through the Ethernet bridge as the RS232 connection The default Ethernet connection is through a Netburner SB70 device which can be easily conf...

Страница 24: ...Users manual NR2110 OG Revision J Date 3 17 17 Page 24 of 46 www novuspower com 4 0 Functional Description...

Страница 25: ...e 25 of 46 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 no...

Страница 26: ...no permanent damage Each output is connected to a monitor circuit that detects a local fault on the output The fault status is indicated on the front panel The ten channel amplifier is designed for l...

Страница 27: ...is 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 pow...

Страница 28: ...e 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...

Страница 29: ...ations 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 devi...

Страница 30: ...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 pha...

Страница 31: ...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...

Страница 32: ...Users manual NR2110 OG Revision J Date 3 17 17 Page 32 of 46 www novuspower com Kalman Filter Performance...

Страница 33: ...99999 994 0 553 16 9999999 998 0 226 9999999 994 0 563 17 9999999 998 0 178 9999999 995 0 527 18 9999999 998 0 223 9999999 994 0 565 19 9999999 998 0 225 9999999 995 0 537 20 9999999 998 0 206 9999999...

Страница 34: ...is an amplitude adjustment potentiometer which can be accessed through the rear panel This is located next the Alert Relay BNC The frequency is phase locked to the GPS signal and no adjustment is requ...

Страница 35: ...criptions 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...

Страница 36: ...32 port Default is 115200 Available baudrates are 9600 19200 38400 57600 115200 230400 Note Front panel baud rate is set to 115200 CHANNEL FAULT THRESHOLD FACTOR FLTTHR FLTTHR FLTTHR current Channel F...

Страница 37: ...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 LATCH...

Страница 38: ...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...

Страница 39: ...1 Lock Valid A Valid V Not Valid 6 GPS 2 Lock Valid A Valid V Not Valid 7 of Sats in View 1 Greater of GPS or GNSS count 8 of Sats in View 2 Greater of GPS or GNSS count 9 Channel Fault Byte 0x0000 to...

Страница 40: ...mss 4 Date mmddyy 5 Channel 1 Vpp 0 00 to 3 30 V 6 Channel 2 Vpp 0 00 to 3 30 V 7 Channel 3 Vpp 0 00 to 3 30 V 8 Channel 4 Vpp 0 00 to 3 30 V 9 Channel 5 Vpp 0 00 to 3 30 V 10 Channel 6 Vpp 0 00 to 3...

Страница 41: ...y 2 30 0 to 30 0 V 7 Power Supply 3 30 0 to 30 0 V 8 Power Supply 4 30 0 to 30 0 V 9 Power Supply 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 3...

Страница 42: ...4 Date mmddyy 5 Channel 9 Vpp 0 00 to 3 30 V 6 Channel 10 Vpp 0 00 to 3 30 V 7 Channel 11 Vpp 0 00 to 3 30 V 8 Channel 12 Vpp 0 00 to 3 30 V 9 Channel 13 Vpp 0 00 to 3 30 V 10 Channel 14 Vpp 0 00 to...

Страница 43: ...al 24 hrs 10 MHz 10ppb does not include crystal drift if not GPS locked Receiver Sensitivity 155dBm Optional PPS 15ns RMS accuracy 3 3 volt logic Antenna SMA female Internal 3 3V Supply 45mA max Novus...

Страница 44: ...eceipt is your proof of the purchase date You may be required to provide proof of purchase as a condition of receiving warranty service You are entitled to hardware warranty service according to the t...

Страница 45: ...ARY LOSS ARISING OUT OF THE USE OF OR INABILITY TO USE THE HARDWARE SUPPLIED THEREWITH EVEN IF NOVUS OR ANYONE ELSE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR FOR ANY CLAIM BY ANY OTHER PA...

Страница 46: ...Users manual NR2110 OG Revision J Date 3 17 17 Page 46 of 46 www novuspower com 10 0 Appendix GNSS Command Reference See attached...

Страница 47: ...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 pe...

Страница 48: ...MAT 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 R...

Страница 49: ...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...

Страница 50: ...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...

Страница 51: ...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...

Страница 52: ...ceeding 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 nul...

Страница 53: ...ngth 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...

Страница 54: ...ill 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 tran...

Страница 55: ...g 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 Un...

Страница 56: ...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...

Страница 57: ...ning 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 differe...

Страница 58: ...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...

Страница 59: ...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 24...

Страница 60: ...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 61: ...00 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 ye...

Страница 62: ...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 Cour...

Страница 63: ...oning 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...

Страница 64: ...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 65: ...an 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 en...

Страница 66: ...ites 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...

Страница 67: ...S 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 aft...

Страница 68: ...o 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...

Страница 69: ...ment 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 alig...

Страница 70: ...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 cle...

Страница 71: ...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...

Страница 72: ...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...

Страница 73: ...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...

Страница 74: ...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 75: ...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 posi...

Страница 76: ...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 77: ...le 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...

Страница 78: ...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 befo...

Страница 79: ...arameter 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 t...

Страница 80: ...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...

Страница 81: ...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 co...

Страница 82: ...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 seco...

Страница 83: ...he 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 th...

Страница 84: ...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 se...

Страница 85: ...RSION 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...

Страница 86: ...fault 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 re...

Страница 87: ...p 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 p...

Страница 88: ...Users manual Appendix A Revision A Date 07 14 15 Page 42 of 58 Pps status present pps is sync with UTC USNO...

Страница 89: ...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...

Страница 90: ...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 puls...

Страница 91: ...tput 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 differe...

Страница 92: ...55 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...

Страница 93: ...ioning 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 Remove...

Страница 94: ...urate 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 dimens...

Страница 95: ...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 PERDAP...

Страница 96: ...s 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 doppfre...

Страница 97: ...a 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 t...

Страница 98: ...eld 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...

Страница 99: ...ION 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 r...

Страница 100: ...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 Exampl...

Страница 101: ...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 PARAMET...

Страница 102: ...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 N...

Страница 103: ...rding 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 whi...

Страница 104: ...Y 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 REMEDIE...

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