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Novus NR2110-R Manual

10mhz frequency reference, pps, gnss-locked, dual channel, with rubidium holdover
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10MHz Frequency Reference, PPS, GNSS-Locked, Dual Channel,
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.
Page #:
1 of 47
NR2110-R/O/G
with Rubidium Holdover
www.novuspower.com
USERS MANUAL
REVISION
DATE
NR2110-R/O/G
B
120120

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  • Page 1 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.
  • Page 2 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Contents Summary ......................... 3 Controls and Indicators – Front Panel ................5 GNSS Status ....................... 7 GNSS Receiver - Standard ..................... 9 Sensitivity ........................9 TTFF (Time to First Fix) ..................... 10 PPS Availability ......................12 Cable Delays ......................
  • Page 3 GNSS receiver When locked to the GPS, the NR2110-R/O/G operates as a GPS/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.
  • Page 4 Standard (dBc/Hz) -125 -145 -155 The NR2110-R/O/G delivers a low phase noise 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.
  • Page 5 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 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 equipment level.
  • Page 6 Fault: a flashing indicator warns of a faulted 10 MHz output. If this state is observed, remove the 10 MHz loads and install a 50 Ohm load and confirm the fault is cleared. The Novus status strings will assist with troubleshooting a fault problem.
  • Page 7 The systems to be used can be programmed and the default will depend upon the receiver selected. Novus offers two levels of GNSS receivers. The basic receiver is a 26 channel GNSS receiver. The receiver and companion elements generate the GNSS sine wave, PPS and NMEA serial link.
  • Page 8 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 High Stability Allan Deviation Standard Receiver Allan Deviation Performance: Page #: 8 of 47 www.novuspower.com...
  • Page 9 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 The PPS source can be either directly from the radio or from the stabilizer. This is software selectable. GNSS Receiver - Standard The 26 channel GNSS receiver and companion elements generate the GNSS PPS and NMEA serial link. The serial link conforms to NMEA 0183 protocol.
  • Page 10 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 GLONASS Tracking: -157 dBm Hot Start: -157 dBm Warm Start: -143 dBm Cold Start: -143 dBm Reacquisition: -157 dBm TTFF (Time to First Fix) Hot Start: <5 sec (@-130 dBm) Warm Start: 35 sec (@-130 dBm) Cold Start: 40 sec (@-130 dBm) ・Active Anti-Jamming...
  • Page 11 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 To measure the range from the satellite to the receiver, two criteria are required: signal transmission time and signal reception time. All GPS satellites have several atomic clocks that keep precise time and are used to time-tag the message (i.e.
  • Page 12 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 The PPS (one Pulse-Per-Second) relationship with the NMEA data is shown below: The serial data timing is for the next rising edge of the PPS pulse. There is the option of setting the NEMA PPS relationship to be for the edge that occurred last.
  • Page 13 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 For applications requiring a more stable PPS – a source such as an OCXO or atomic reference should 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.
  • Page 14 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 GNSS Receiver-High Performance It 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.
  • Page 15 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Channel Status The channel status can be determined by reading the actual RMS value on the output of each stage. This is compared to a threshold limit that is set by the user as a percentage variation from a saved value. The default variation value is set at ±25% percent from the current state of the amplifier and is user-programmable in...
  • Page 16 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Status LEDs There are three status LEDs which provide a quick indication of valid unit operation. Alert LED: The 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.
  • Page 17 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 In addition to direct value measurements, each redundant system has a power supply status byte which is reported in the third $GPNVS status string, in the seventh and eighth fields respectively. Any measurement of the power supply which results in an alert condition will be reported in the power supply status byte.
  • Page 18 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 24V DC Option Mating Connector RT060102SNH – mating connector https://www.amphenol-sine.com/RT06102SNH-Plug-Female-4-Contacts-Contact- Sizes-16-20-13A-5A350V-Shell-Size-10_p_1056.html RT0L-10CG-S2 – Strain Relief https://www.amphenol-sine.com/RT0L-10CG-S2-Long-Backshell-straight-Shell- Size-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...
  • Page 19 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Alert Threshold The alert threshold screen allows the user to adjust the tolerance from the reference voltage which, if exceeded in either direction, the output channel will report a fault status. The default threshold value is set at ±25% percent from the current state of the amplifier, and is user programmable in 5% increments, from ±10% to ±60%.
  • Page 20 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 The alert threshold can be optimized so that a channel short or an impedance change will cause an alert. Page #: 20 of 47 www.novuspower.com...
  • Page 21 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Example: The output of channel 1 is connected to a high impedance input and reports 1.25Vrms at the output. Alert threshold is set to +/-20%. The current state is saved in the save configuration screen.
  • Page 22 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Latch Channel Value The latch channel values allows the user to save the current channel output value for use as the reference value for alert settings. A channel alert is triggered when the channel output voltage exceeds or falls below a percentage of the reference value.
  • Page 23 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Power Switch The front panel power switch 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.
  • Page 24 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Antenna Connection (with GNSS option only) SMA connector with 5VDC amplifier power. Antenna specifications should meet the following characteristics: Operating Frequency: 1575.42 MHz, +/-2 MHz Input Impedances: 50 Ohm VSWR: 1.5 (typical) Bandwidth: 25 MHz (typical) +/- 3dB points Polarization: Right Hand Circular Power Requirements: 5 +/- 0.25 VDC...
  • Page 25 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 AC Input The AC input accepts 90-250Vac, 50-60Hz. IEC 320-C14 compliant. RS232 DB9 (Status) An RS232 port is provided for local setup and status 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...
  • Page 26 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 RS232 DB9 (NMEA) An RS232 port is provided for NMEA 0183 output. For communication protocol, see attached Appendix A. RS232 Serial Port: Rear Panel Pin Connections Function NMEA Port TX NMEA Port RX The default settings for the NMEA RS232 port are 38400 baud, 8 bits, 1 stop bit, no parity.
  • Page 27 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Ethernet Port An Ethernet port (RJ-45) connects to the network via static address of 192.168.7.200. Functional Description Page #: 27 of 47 www.novuspower.com...
  • Page 28 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 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: Page #: 28 of 47 www.novuspower.com...
  • Page 29 AC supply and the DC power supply becomes the prime when the AC power fails. Crystal Novus crystal-based frequency reference products are based upon either TCXO or OCXO technology. Temperature compensated crystal oscillators will normally use a AT cut crystal and electronically compensate the device with temperature.
  • Page 30 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 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 two orders of magnitude more stable than the TCXO. Comparison of an AT versus a SC cut crystal Over a broad temperature range, an AT performs very well and much easier to compensate electronically.
  • Page 31 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 OCXO Frequency Error from Cold Start Frequency Error 1 to 250 seconds 5.00E+01 0.00E+00 -5.00E+01 -1.00E+02 -1.50E+02 -2.00E+02 Time in seconds Page #: 31 of 47 www.novuspower.com...
  • Page 32 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. The phase noise for the NR2110-R/O has phase noise improved by well over 20 dB by this technique.
  • Page 33 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Typical Phase Noise Performance-Rubidium with OCXO When the stability of an atomic or crystal source is not sufficient, a GNSS disciplined source is an option. A GNSS receiver is installed and timing information from the GNSS is used to discipline the timing device. Timing accuracy to a few ppb is readily achievable.
  • Page 34 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Kalman Filter Performance: Page #: 34 of 47 www.novuspower.com...
  • Page 35 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Typical acceptance testing data for the NR series GNSS-locked reference Novus- Reference Group 201 N Forest Ave Suite 225 Independence, MO 64050 866 313 9401 Date 6/12/2020 Model NR2110-R/O/G Tech Serial 24201465 Actual Frequency Locked...
  • Page 36 DATE 120120 Calibration NR2110-R/O/G: There 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 required. The auto-calibration feature tunes the OCXO and stores the calibration coefficients in non-volatile memory.
  • Page 37 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 7.1 RS232 Commands (Status Port) (For NMEA Port protocol, see attached Appendix A) Command Setting Response Description Query Baud Rate on rear panel RS232. (Default = $BAUDNV 115200). Front Panel is 115200 baud. RS232 REAR Assign Baud rate to Rear Panel RS232 port.
  • Page 38 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Setting Command Response Description $SET<nn>=n.nn Set or query the Reference Voltage for a perticular channel with respect to the active input. Use in combination with the Channel Fault Threshold Factor to define Alert on an individual Channel.
  • Page 39 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Setting Command Response Description $CAL<n>=nn.nn Query or set Cal Factors for specific ADC conversions. See list of Cal Factors numbered for CAL FACTORS $CAL<n>=nn.nn appropriate measurement parameters. These $CAL1=11.10 settings should only be changed by an authorized technician.
  • Page 40 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Status String ($GPNVS,1) Fault Bytes $GPNVS 1 hhmmss mmddyy nn 0x00 0x00 0x00 * XX # Description Range 11. Identifier $GPNVS 12. String ID 13. Time (UTC) hhmmss 14. Date mmddyy “A” = Valid, “V” = Not Valid 15.
  • Page 41 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Status String ($GPNVS,2) Channel Values $GPNVS 1 hhmmss mmddyy n.nn * XX # Description Range 1. Identifier $GPNVS 2. String ID 3. Time (UTC) hhmmss 4. Date mmddyy 5. Channel 1 Vpp 0.00 to 3.30 [V] *XX (xor’d value of bytes between $ and *)
  • Page 42 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Status String ($GPNVS,3) Power Supply Values $GPNVS 3 hhmmss mmddyy n.nn n.nn n.nn n.nn n.nn n.nn 11 12 # Description Range 1. Identifier $GPNVS 2. String ID 3. Time (UTC) hhmmss 4. Date mmddyy 5.
  • Page 43 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Technical Specification Performance 10MHz Sine 1.0±0.1 Vrms , 2 channel, 50 Ohm - BNC Harmonics Less than -30dB First Year Frequency ± 50 ppb (long-term stability unlocked) Stability Temperature Stability ± 10ppb (unlocked) Daily Aging OCXO ±...
  • Page 44 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 SNMP (option) Remote monitoring & control Internet Parameters monitored Output amplitude, all power supplies, GNSS lock status, number of Locally – present on remote satellites, Built-In test status, interface for monitoring Transaction/decodable English format...
  • Page 45 WARRANTY PERIOD starts on the date of shipment and for the period of 1 (one) year to be free from defects caused by faulty materials or poor workmanship, provided: (a) NOVUS is notified in writing by Buyer of such defect prior to the expiration of the warranty period, and (b) after receiving return authorization –RMA- from NOVUS, the defective item is returned with...
  • Page 46 CLAIMS OR DAMAGES. LIMITATION OF REMEDIES: 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,...
  • Page 47 USERS MANUAL NR2110-R/O/G REVISION DATE 120120 Appendix: GNSS Command Reference See attached. Page #: 47 of 47 www.novuspower.com...
  • Page 48 GPS/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.
  • Page 49 Users manual Appendix A Revision #: Date: 07-14-15 Table of Contents: COMMUNICATION SPECIFICATION ......................... 4 SERIAL DATA OUTPUT TIMING △4........................... 5 NMEA SENTENCE FORMAT ............................. 6 PROPRIETARY SENTENCE FORMAT: ........................7 STANDARD NMEA OUTPUT SENTENCES ........................8 GGA – G : ......................
  • Page 50 Users manual Appendix A Revision #: Date: 07-14-15 PROPRIETARY NMEA OUTPUT SENTENCES ......................40 ACK – O : ......................40 UTPUT THE OMMAND ECEPTION HECK ORMAT CR – ERIDE GNSS CORE LIBRARY INTERFACE ...................... 41 ) △4△5 F CRW(TPS1) – O : ..........
  • Page 51 Users manual Appendix A Revision #: Date: 07-14-15 Communication Specification Signal Lines used: TXD, RXD Flow Control: None System: Full Duplex Asynchronous Speed: Configurable, Default 38400 bps (*1) Start Bit: 1 bit Data Length: 8 bits Stop Bit: 1 bit Parity Bit: None Data Output Interval:...
  • Page 52 Users manual Appendix A Revision #: Date: 07-14-15 Serial data output timing △ 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.
  • Page 53 Users manual Appendix A Revision #: Date: 07-14-15 NMEA Sentence Format 13.1 Standard Sentence Format: <address field> <data field> … *<checksum field> <CR> <LF> 5 bytes Field Description Start-of Sentence marker <address field> 5-byte fixed length. First 2 bytes represent a talker ID, and the remaining 3 bytes do a sentence formatter.
  • Page 54 Users manual Appendix A Revision #: Date: 07-14-15 Proprietary Sentence Format: $ P <maker ID> <sentence type> , <data field> … *<checksum field> <CR> <LF> 3 bytes 3 bytes Field Description Start-of-Sentence marker Proprietary sentence identifier 3-byte fixed length. <maker ID> GT-87’s maker ID is “ERD”...
  • Page 55 Users manual Appendix A Revision #: Date: 07-14-15 Standard NMEA Output Sentences The receiver supports eight standard NMEA output sentences (GGA, GLL, GNS, GSA, GSV, RMC, VTG and ZDA) per NMEA standard 0183 Version 4.10 (June, 2012). By default, the RMC, GNS, GSA, ZDA, GSV and TPS sentences 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.
  • Page 56 Users manual Appendix A Revision #: Date: 07-14-15 – Global Positioning System Fix Data Format: $XXGGA , hhmmss.sss , ddmm.mmmm , , dddmm.mmmm , <CR> <LF> Description Range “hh”: hour 00 - 23 “mm”: minute 00 - 59 “ss.sss”: second 00.000 - 59.999 2-3.
  • Page 57 Users manual Appendix A Revision #: Date: 07-14-15 – △ Geographic Position - Latitude/Longitude Format: $XXGLL , ddmm.mmmm , a , dddmm.mmmm , , hhmmss.sss , a , a *hh <CR> <LF> Description Range 1-2. Latitude “dd”: degree 00 - 90 “mm.mmmm”: minute 00.0000 - 59.9999 “a”: North/South...
  • Page 58 Users manual Appendix A Revision #: Date: 07-14-15 – GNSS Fix Data Format: $XXGNS , hhmmss.sss , ddmm.mmmm , , dddmm.mmmm , , c--c , <CR> <LF> Description Range “hh”: hour 00 - 23 “mm”: minute 00 - 59 “ss.sss”: second 00.000 - 59.999 Latitude 2-3.
  • Page 59 Users manual Appendix A Revision #: Date: 07-14-15 △ – GNSS DOP and Active Satellites Format: $XXGSA , a , a , xx , xx , xx , … , xx , x.x , x.x , x.x , h *hh <CR> <LF> 6-13 Description Range...
  • Page 60 Users manual Appendix A Revision #: Date: 07-14-15 △ – GNSS Satellites in View Format: $XXGSV <CR> <LF> Description Range Total number of messages 1 - 4 Number of messages 1 - 4 Number of satellites in line-of-sight 00 - 14 Sat.
  • Page 61 Users manual Appendix A Revision #: Date: 07-14-15 Satellite number from 93 to 99 indicates QZSS (193 to 199) Page 14 of 58...
  • Page 62 Users manual Appendix A Revision #: Date: 07-14-15 △ – Recommended Minimum Navigation Information Format: $XXRMC , hhmmss.sss , a , ddmm.mmmm , a , dddmm.mmmm , a , x.x , , ddmmyy , <CR> <LF> # Description Range “hh”: hour 00 - 23 “mm”: minute 00 - 59...
  • Page 63 Users manual Appendix A Revision #: Date: 07-14-15 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 Page 16 of 58...
  • Page 64 Users manual Appendix A Revision #: Date: 07-14-15 – Course Over Ground and Ground Speed Format: $XXVTG , *hh <CR> <LF> # Description Range 1-2. True Course (degree) “T” (meaning TRUE) 3-4. Magnetic Direction “M” (meaning Magnetic Direction) Note: A null field is output unless magnetic direction information is available. 5-6.
  • Page 65 Users manual Appendix A Revision #: Date: 07-14-15 Proprietary NMEA Input Sentences These sentences are input commands for the protocol of this receiver. Page 18 of 58...
  • Page 66 Users manual Appendix A Revision #: Date: 07-14-15 △ △ – GNSS Satellite System Configuration Format: $PERDAPI , GNSS , talkerID , , glonass , galileo , qzss sbas *hh <CR> <LF> Contents Range Default Remark GNSS Command Name AUTO: GLGSV is omitted in case of no glonass. AUTO, GPGSV is omitted in case of no GPS, SBAS and LEGACYGP...
  • Page 67 Users manual Appendix A Revision #: Date: 07-14-15 △ – FIXMASK Setting of Positioning and Satellite Mask Format: $PERDAPI , FIXMASK , mode elevmask , Reserve1 snrmask , Reserve2 [, Prohibit SVs Prohibit SVs Prohibit SVs Prohibit SVs Prohibit SVs *hh <CR>...
  • Page 68 Users manual Appendix A Revision #: Date: 07-14-15 Example: $PERDAPI,FIXMASK,USER,10,0,37,0,0x92,0x01,0x00,0x00,0x20000*50 Elevation mask: 10 degrees Signal level mask: 37 dBHz GPS mask: GPS (BIT2 = SVID 2), GPS (BIT5 = SVID 5) and GPS (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 the positioning.
  • Page 69 Users manual Appendix A Revision #: Date: 07-14-15 （ ） – △ Setting of PPS Pulse per second 4 Format: $PERDAPI , PPS , type , mode , period , pulse width , cable delay , polarity [, PPS accuracy threshold] *hh <CR <LF>...
  • Page 70 Users manual Appendix A Revision #: Date: 07-14-15 Notes: △ - LEGACY PPS setting is output legacy PPS which is not synchronized with frequency which is output from GCLK pin, but which is output immediately after first fix in case of cold start. - GCLK PPS setting is output GCLK PPS which synchronized with frequency which is output from GCLK pin, but it takes some to become GCLK PPS steady after first fix (typically, 1~2 minutes after fist fix).
  • Page 71 Users manual Appendix A Revision #: Date: 07-14-15 △ RESTART - Restart command 4 Format: $PERDAPI , RESTART , restart mode *hh <CR> <LF> Contents Range Default Remark RESTART Command Name restart WARM Restart mode mode COLD FACTORY Example: $PERDAPI,RESTART,COLD*08 Mode: cold restart Notes: △...
  • Page 72 Users manual Appendix A Revision #: Date: 07-14-15 – △ TIME Setting of time information Initial time is configured. The setting of time is effective only within the case that time is not decided by other factors. A setting of a millennium which is the times of GPS week rollover is received also after time decision.
  • Page 73 Users manual Appendix A Revision #: Date: 07-14-15 – △ TIMEZONE Local Zone Time This sentence is reflected to ZDA sentence (not only local zone field but also UTC time field). Format: $PERDAPI TIMEZONE , sign , hour , minute *hh <CR> <LF> Contents Range Default...
  • Page 74 Users manual Appendix A Revision #: Date: 07-14-15 – △ SURVEY Position Mode 1 Format: $PERDAPI , SURVEY , position mode [, sigma threshold , time threshold] latitude longitude altitude]] *hh <CR> <LF> Contents Range Default Remark SURVEY Command Name 0: Normal NAV (navigation) mode 1: Position Survey...
  • Page 75 Users manual Appendix A Revision #: Date: 07-14-15 Fixed position: 37.78700 degrees north 122.45100 degrees west Altitude: 31.5 m Page 28 of 58...
  • Page 76 Users manual Appendix A Revision #: Date: 07-14-15 Notes: - It is omissible after the 3rd field. - When the position mode is “1”, a position is re-calculated after power supply OFF/ON. Please use it, when the antenna position may change before power supply OFF. - When the position mode is “2”, after power supply OFF/ON, the estimated position that calculated before power supply OFF is kept, and the position is updated.
  • Page 77 Users manual Appendix A Revision #: Date: 07-14-15 The condition of survey is satisfied. [*] Position mode is always started by time only mode if TO Keep mode by this condition and power off. Page 30 of 58...
  • Page 78 Users manual Appendix A Revision #: Date: 07-14-15 – △ △ FREQ Setting of GCLK FREQUENCY 7 Format: $PERDAPI , FR , mode , freq [, duty offset] *hh <CR> <LF> Contents Range Default Remark FREQ Command Name 0 : stop mode 0 to 1 1 : output...
  • Page 79 Users manual Appendix A Revision #: Date: 07-14-15 – △ △ DEFLS Setting of default leap second 6 Format: $PERDAPI , DEFLS , [, mode] *hh <CR> <LF> Contents Range Default Remark DEFLS Command Name 0 to 32 Default leap second AUTO: default leap second is updated automatically AUTO or mode...
  • Page 80 Users manual Appendix A Revision #: Date: 07-14-15 TIMEALIGN – setting of time alignment △ 4 Format: $PERDAPI , TIMEALIGN , mode *hh <CR> <LF> Contents Range Default Remark TIMEALIGN Command Name 1 : GPS alignment mode 1 to 3 2 : UTC(USNO) alignment 3 : UTC(SU) alignment Example:...
  • Page 81 Users manual Appendix A Revision #: Date: 07-14-15 Restriction: Output time GLONASS only fix GPS only fix setting GPS + GLONASS setting setting accurate default GPS alignment leap second is required [*1] UTC(USNO) alignment UTC(SU) alignment GLONASS only fix GPS + GLONASS setting GPS only fix setting setting GPS alignment...
  • Page 82 Users manual Appendix A Revision #: Date: 07-14-15 – △ FLASHBACKUP Setting of backup in Flash 4 Format: $PERDAPI , FLASHBACKUP , type *hh <CR> <LF> Contents Range Default Remark FLASHBACKUP Command Name Target of backup Each bit represents one command setting 0x00 to 0x01 : FREQ command setting type...
  • Page 83 Users manual Appendix A Revision #: Date: 07-14-15 – CROUT Setting of CR Output Format: $PERDAPI , CROUT , type rate *hh <CR> <LF> Contents Range Default Remark CROUT Command Name Output CR sentence type N,M,W,X,Y,Z W,X,Y,Z [*] Alphabets of outside range are reserved.
  • Page 84 Users manual Appendix A Revision #: Date: 07-14-15 CFG – Setting of Application Software – △ NMEAOUT Standard NMEA Output Format: $PERDCFG , NMEAOUT , type , interval *hh <CR> <LF> Contents Range Default Remark NMEAOUT Command Name Standard NMEA sentence [*1] type [*1]...
  • Page 85 Users manual Appendix A Revision #: Date: 07-14-15 - 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. Page 38 of 58...
  • Page 86 Users manual Appendix A Revision #: Date: 07-14-15 – PVT System VERSION – Software Version Format: $PERDSYS VERSION <CR> <LF> Contents Range Default Remark VERSION Command Name Example: $PERDSYS,VERSION*2C – GPIO General Purpose Input/output Format: $PERDSYS GPIO <CR> <LF> Contents Range Default Remark...
  • Page 87 Users manual Appendix A Revision #: Date: 07-14-15 Proprietary NMEA Output Sentences This sentence is a protocol only for our company. It starts from “$PERD” which shows that it is an original sentence. – Output the Command Reception Check Format: $PERDACK , command , sequence , subcommand *hh <CR>...
  • Page 88 Users manual Appendix A Revision #: Date: 07-14-15 CR – e GNSS Core Library Interface Ride CRW(TPS1) – Output Time Transfer Info per Second (Date and leap second) △ △ 5 Format: $PERDCRW , TPS1 , Date & Time , time status , update date , present LS , future LS , pps status...
  • Page 89 Users manual Appendix A Revision #: Date: 07-14-15 Pps status: present pps is sync with UTC (USNO) Page 42 of 58...
  • Page 90 Users manual Appendix A Revision #: Date: 07-14-15 Notes: - This command is output every second. - Present LS is current leap second. This is updated in the timing of leap second update schedule. - $PERDAPI,CROUT,W,0*4F stops outputting this command. - Update data indicate zero when no update schedule.
  • Page 91 Users manual Appendix A Revision #: Date: 07-14-15 – △ CRX(TPS2) Output Time Transfer Info per Second (PPS) 4 Format: $PERDCRX , TPS2 , pps status , pps mode , pps period , pulse width , cable delay , polarity , pps type , estimated accuracy , Sawtooth , pps acc threshold *hh <CR> <LF> Contents Range Default...
  • Page 92 Users manual Appendix A Revision #: Date: 07-14-15 $PERDCRX,TPS2,1,2,0,200,+001000,0,0,0005,+0.000,1000*29 PPS status: PPS ON (1) PPS mode: during on fix (2) PPS period: 1PPS (0) PPS pulse width: 200ms PPS cable delay: +1000ns Polarity: rising edge Type: LEGACY PPS Estimated accuracy: 5ns Sawtooth: +0.000ns PPS estimated accuracy threshold: 1us Notes:...
  • Page 93 Users manual Appendix A Revision #: Date: 07-14-15 – CRY(TPS3) Output Time Transfer Info per Second (Survey & TRAIM) Format: $PERDCRY , TPS3 , pos mode , sigma , sigma threshold , time , time threshold , TRAIM solution , TRAIM status Removed SVs Receiver status...
  • Page 94 Users manual Appendix A Revision #: Date: 07-14-15 $PERDCRY,TPS3,2,0003,001,002205,086400,0,0,00,0x00000000*68 Positioning 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:...
  • Page 95 Users manual Appendix A Revision #: Date: 07-14-15 – △ CRZ (TPS4) Output Time Transfer Info per Second (FREQUENCY) 3 Format: $PERDCRZ , TPS4 , freq mode , Freq status , GCLK accuracy , lock cnt lockoff cnt , reserve , IDtag , GCLK setting 1 , GCLK setting 2 *hh <CR>...
  • Page 96 Users manual Appendix A Revision #: Date: 07-14-15 $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. Page 49 of 58...
  • Page 97 Users manual Appendix A Revision #: Date: 07-14-15 CRM – Measurement Data of GPS Format: $PERDCRM time sennum maxsen system svid reserve , doppfreq , pseudorange <CR> <LF> Contents Range Default Remark time 0 to 604799 GPS time of week Sentence number sennum 1 to 32...
  • Page 98 Users manual Appendix A Revision #: Date: 07-14-15 CRN – Navigation Data Format: $PERDCRN system svid subframe data <CR> <LF> Contents Range Default Remark system GNSS system ID (1=GPS) Satellite number svid 1 to 99 10 words Subframe data no parirt included subframe data (60 strings) Example:...
  • Page 99 Users manual Appendix A Revision #: Date: 07-14-15 SYS – Answer of PVT System ERSION- Software Version 7.3.1 Format: $PERDSYS , VERSION , device version , reserve1 , reserve2 <CR> <LF> Contents Range Default Remark VERSION Command Name device Device Name Version number version reserve1...
  • Page 100 Users manual Appendix A Revision #: Date: 07-14-15 △ FIXSESSION- Fix Session 1 Format: $PERDSYS , FIXSESSION , reserve1 [, reserve2 , reserve3] <CR> <LF> Contents Range Default Remark FIXSESSION Command Name reserve1 reserve field reserve2 reserve field reserve3 reserve field Example: $PERDSYS,FIXSESSION,ON,19015,19.015*7C Notes:...
  • Page 101 Users manual Appendix A Revision #: Date: 07-14-15 △ BBRAM - Battery Backup Random Access Memory 1 Format: $PERDSYS BBRAM reserve1 [, reserve2] <CR> <LF> Contents Range Default Remark BBRAM Command Name reserve1 reserve field reserve2 reserve field Example: $PERDSYS,BBRAM,PASS*15 Notes: eRide - This string is sent when certain events occur.
  • Page 102 Users manual Appendix A Revision #: Date: 7-13-15 Backup of the Receiver Parameters (for BBRAM) △ The parameters which this receiver has backed up are shown below. Chart. Backup of the receiver parameter POWER CONTENTS PARAMETER WARM COLD FACTORY OFF/ON Date &...
  • Page 103 Users manual Appendix A Revision #: Date: 7-13-15 TIMEALIGN Time alignment FLASHBACKUP Backup in flash Chart. Backup of the configure parameter of command COMMAND POWER PARAMETER WARM COLD FACTORY NAME OFF/ON UART1 Baud rate of UART1 NMEA output NMEAOUT interval [*1] The position calculated by position survey mode or input by $PERDAPI,SURVEY,3.
  • Page 104 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 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.
  • Page 105 Date: 7-13-15 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 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.
  • Page 106 $GPNVS 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.

  • Page 107: Table Of Contents

    Users manual $GPNVS Revision #: Date: 8/25/20 Contents 1.0 The $GPNVS Serial Status String ................3 1.1 Status String ($GPNVS,1) Fault Bytes ..............4 1.2 Status String ($GPNVS,2) Channel Values 1-8 ............5 1.3 Status String ($GPNVS,3) Power Supply Values............. 6 1.4 Status String ($GPNVS,4) Channel Values 9-16 .............

  • Page 108: The $Gpnvs Serial Status String

    Date: 8/25/20 1.0 The $GPNVS Serial Status String Novus products provide, in many cases, serial data output from a standard GNSS receiver matching the NMEA 0183 protocol. This is usually a direct connection to the receiver. In addition to NMEA, Novus Products which provide an additional RS232 serial port for status monitoring, will be set up to meet the following protocols.

  • Page 109: Status String ($Gpnvs,1) Fault Bytes

    Users manual $GPNVS Revision #: Date: 8/25/20 1.1 Status String ($GPNVS,1) Fault Bytes $GPNVS 1 hhmmss mmddyy A A nn nn 0x0000 0x00 0x00 * XX 12 13 # Description Range 1. Identifier $GPNVS 2. String ID 3. Time (UTC) hhmmss 4.

  • Page 110: Status String ($Gpnvs,2) Channel Values 1-8

    Users manual $GPNVS Revision #: Date: 8/25/20 1.2 Status String ($GPNVS,2) Channel Values 1-8 $GPNVS 2 hhmmss ddmmyy n.nn n.nn n.nn n.nn n.nn n.nn n.nn n.nn * XX # Description Range 1. Identifier $GPNVS 2. String ID 3. Time (UTC) hhmmss 4.

  • Page 111: Status String ($Gpnvs,3) Power Supply Values

    Users manual $GPNVS Revision #: Date: 8/25/20 1.3 Status String ($GPNVS,3) Power Supply Values $GPNVS 3 hhmmss ddmmyy n.nn n.nn n.nn n.nn n.nn n.nn n.nn n.nn nn * XX 13 14 # Description Range 1. Identifier $GPNVS 2. String ID 3.

  • Page 112: Status String ($Gpnvs,4) Channel Values 9-16

    Users manual $GPNVS Revision #: Date: 8/25/20 1.4 Status String ($GPNVS,4) Channel Values 9-16 $GPNVS 4 hhmmss ddmmyy n.nn n.nn n.nn n.nn n.nn n.nn n.nn n.nn * XX # Description Range 1. Identifier $GPNVS 2. String ID 3. Time (UTC) hhmmss 4.

  • Page 113: Status String ($Gpnvs,5) Sensors

    Users manual $GPNVS Revision #: Date: 8/25/20 1.5 Status String ($GPNVS,5) Sensors $GPNVS 5 hhmmss ddmmyy nnn ±nn * XX # Description Range 1. Identifier $GPNVS 2. String ID 3. Time (UTC) hhmmss 4. Date mmddyy 5. Potentiometer Hex Value 000 to FFF 6.

  • Page 114: Status String ($Gpnvs,6) Status Bytes

    Users manual $GPNVS Revision #: Date: 8/25/20 1.6 Status String ($GPNVS,6) Status Bytes There are two different Status Strings; one for everything except the NR2304 and one for the NR2304. 1.6.1 Status String ($GPNVS,6) Status Bytes; Standard $GPNVS 6 0 A 0 0x0000 0x00 0x00 0x00...

  • Page 115: Status String ($Gpnvs,6) Status Bytes; Rubidium

    Users manual $GPNVS Revision #: Date: 8/25/20 1.6.2 Status String ($GPNVS,6) Status Bytes; Rubidium $GPNVS nnn 0x0000 nnn # Description Range 1. Identifier $GPNVS 2. String ID 3. Heat Sink Temperature 0-255 4. Heater Current Voltage 0x0000-0x0136 5. Measured Voltage in Heater 0-255 6.

  • Page 116: Status String ($Gpnvs,7) Status Bytes

    Users manual $GPNVS Revision #: Date: 8/25/20 1.7 Status String ($GPNVS,7) Status Bytes $GPNVS 7 nnnnnn nnnnnn A nn 0x00 nnnnnn n.nn n.nn # Description Range 1. Identifier $GPNVS 2. String ID 3. Time hhmmss 4. Date mmddyy “A” = Valid, “V” = Not Valid 5.

  • Page 117: Event String ($Gpnvs,8) Event Status

    Users manual $GPNVS Revision #: Date: 8/25/20 1.8 Event String ($GPNVS,8) Event Status $GPNVS nnnnnn # Description Range 1. Identifier $GPNVS 2. String ID 3. Discipline Counter 0 = Off, 1 = Disciplined to Synthetic PPS 4. User Enabled 0 = Off, 1 = On 5.

  • Page 118: Status String ($Gpnvs,9) Frequency Measurement

    Users manual $GPNVS Revision #: Date: 8/25/20 1.9 Status String ($GPNVS,9) Frequency Measurement The frequency measurement string has two versions, one standard version, and one for the NR6720. 1.9.1 Standard Frequency Measurement String $GPNVS hhmmss ddmmyy (n)nnnnnnn.nnn (-)nn # Description Range 1.

  • Page 119: Nr6720-Hs Frequency Measurement String

    Users manual $GPNVS Revision #: Date: 8/25/20 1.9.2 NR6720-HS Frequency Measurement String $GPNVS nnnnnnn.nnn n.nnnnn nnnnnnnn.nn ±n.nn ±n.nn * # Description Range 1. Identifier $GPNVS 2. String ID 3. Frequency (Loop Period) 10000000.000 4. DAC Voltage (Double) 2.00000 5. Frequency (per second) 10000000.0 6.

  • Page 120: Pps Alignment String ($Gpnvs,10) Pps Status

    Users manual $GPNVS Revision #: Date: 8/25/20 1.10 PPS Alignment String ($GPNVS,10) PPS Status $GPNVS 10 ±n ±n ±n # Description Range 1. Identifier $GPNVS 2. String ID 3. PPS Stability Enabled 0 = Off, 1 = On 4. PPS Disciplining to GPS 0 = Off, 1 = Actively Synchronized 5.

  • Page 121: Pps Alignment String ($Gpnvs,9) Pps Status

    Users manual $GPNVS Revision #: Date: 8/25/20 1.12 PPS Alignment String ($GPNVS,9) PPS Status $GPNVS nnn 0x0000 nnn # Description Range 8. Identifier $GPNVS 9. String ID 10. Heat Sink Temperature 0-255 11. Heater Current Voltage 0x0000-0x0136 12. Measured Voltage in Heater 0-255 13.

  • Page 122: Response String ($Gpnvs,R)

    Users manual $GPNVS Revision #: Date: 8/25/20 1.11 Response String ($GPNVS,R) $GPNVS R n <response> * XX # Description Range 1. Identifier $GPNVS 2. Response ID 3. Command Success 1 = Success, 0 = Fail 4. Response <see example responses> *XX (xor’d value of bytes between $ and *) 5.

  • Page 123: Discipline Selection String ($Gpnvs,13)

    Users manual $GPNVS Revision #: Date: 8/25/20 1.12 Discipline Selection String ($GPNVS,13) $GPNVS, # Description Range 1. Identifier $GPNVS 2. String ID 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.

  • Page 124: Combined Nmea/Status Rs232

    Users manual $GPNVS Revision #: Date: 8/25/20 2.0 Combined NMEA/Status RS232 NR2110-OG Combined NMEA?Status Port 2.1 Status String ($GPNVS,1) Fault Bytes $GPNVS 1 hhmmss mmddyy nn 0x00 0x00 0x00 * XX # Description Range 15. Identifier $GPNVS 16. String ID 17.

  • Page 125: Status String ($Gpnvs,2) Channel Values

    Users manual $GPNVS Revision #: Date: 8/25/20 2.2 Status String ($GPNVS,2) Channel Values $GPNVS 1 hhmmss mmddyy n.nn n.nn n.nn n.nn n.nn n.nn * XX # Description Range 14. Identifier $GPNVS 15. String ID 16. Time (UTC) hhmmss 17. Date mmddyy 18.

  • Page 126: Status String ($Gpnvs,3) Power Supply Values

    Users manual $GPNVS Revision #: Date: 8/25/20 2.3 Status String ($GPNVS,3) Power Supply Values $GPNVS 3 hhmmss mmddyy n.nn n.nn n.nn n.nn n.nn # Description Range 15. Identifier $GPNVS 16. String ID 17. Time (UTC) hhmmss 18. Date mmddyy 19. -5Vdc Power Supply(opt) -30.0 to 30.0 [V] 20.

  • Page 127: Status Byte Key

    Users manual $GPNVS Revision #: Date: 8/25/20 3.0 Status Byte Key Hex Value (OR'd) Channel ID Channel Status Word 0x1<<0 Channel 1 Fault 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...
  • Page 128 Users manual $GPNVS Revision #: Date: 8/25/20 Hex Value (OR'd) Channel ID Primary PCB Amp Status 0x1<<0 Channel 1 Fault 0x1<<1 Channel 2 Fault 0x1<<2 Channel 3 Fault Internal Fault Primary 0x1<<3 Channel 4 Fault Assembly: The channel 0x1<<4 Channel 5 Fault has failed an internal 0x1<<5 Channel 6 Fault...
  • Page 129 Users manual $GPNVS Revision #: Date: 8/25/20 Hex Value (OR'd) Status Message 0x1<<0 Flash Read Boot Error (Deprecated) 0x1<<1 Potentiometer Read/Set Fail 0x1<<2 Reserved Active Board 0x1<<3 Reserved Status 0x1<<4 PCB Assembly Input A/B Select Fail 0x1<<5 Reserved 0x1<<6 Reserved 0x1<<7 Reserved Hex Value (OR'd)

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