Novus NR2316-OG User Manual
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Novus NR2316-OG User Manual

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User Manual
16 Channel GPS Locked OCXO
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 #:
1 of 50
Users manual
Revision #:
Date:
Frequency Reference
NR2316-OG
E
5/4/18
Model NR2316-OG
www.novuspower.com

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  • Page 1 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.
  • Page 2 Users manual NR2316-OG Revision #: Date: 5/4/18 Contents 1.0 Summary ........................3 2.0 Controls and Indicators – Front Panel ................7 2.1 GNSS Status......................8 2.2 GNSS Detailed Status ....................8 2.3 Channel Status ......................9 2.4 Status LEDs ......................10 2.5 Power Supply Status ....................
  • Page 3 Users manual NR2316-OG Revision #: Date: 5/4/18 1.0 Summary The NR2316 is a 16 Channel precision GNSS/GPS locked 10MHz frequency reference. The amplifier is a low phase noise design to preserve the integrity of the reference signal. All outputs are transient and fault protected.
  • Page 4 Users manual NR2316-OG Revision #: Date: 5/4/18 The NR2316-OG delivers a low phase noise curve, which can be seen in the sample production test below. NR2316-OG Phase Noise Measurement Page #: 4 of 50 www.novuspower.com...
  • Page 5 Users manual NR2316-OG Revision #: Date: 5/4/18 The unit features extensive reporting via the rear panel RS232 port. Equipment status, output voltage on each channel. By being able to monitor the output voltage, the user can detect cabling issues that cause an impedance change and replace cabling before it completely fails.
  • Page 6 Users manual NR2316-OG Revision #: Date: 5/4/18 Page #: 6 of 50 www.novuspower.com...
  • Page 7 Users manual NR2316-OG Revision #: Date: 5/4/18 2.0 Controls and Indicators – Front Panel This section describes the functionality of the front panel controls and indicators. Two buttons above the status LEDs provide navigation through 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.
  • Page 8 Date: 5/4/18 2.1 GNSS Status On power up, the NR2316-OG will display the Time and Date as well as the current status of both GNSS receivers. GNSS: The GNSS status indication allows the user to observe the Lock status of the receivers, and the number of GNSS satellites in view.
  • Page 9 Users manual NR2316-OG Revision #: Date: 5/4/18 2.3 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.
  • Page 10 Users manual NR2316-OG Revision #: Date: 5/4/18 2.4 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 11 12V/24V. This is diode connected with the external 12/V24V DC input, which can be used in addition to, or in place of, the AC input. The external DC input can be ordered to accommodate a variety of DC input levels. Contact Novus for options.
  • Page 12 Users manual NR2316-OG Revision #: Date: 5/4/18 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. Page #: 12 of 50 www.novuspower.com...
  • Page 13 Users manual NR2316-OG Revision #: Date: 5/4/18 2.6 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 channels will report a fault status. The default threshold value is set at ±55% percent from the current state of the amplifier, and is user programmable in 5% increments, from ±10% to ±60%.
  • Page 14 Users manual NR2316-OG Revision #: Date: 5/4/18 The Alert Threshold can be optimized so that a channel short or an impedance change will cause an Alert. Page #: 14 of 50 www.novuspower.com...
  • Page 15 Users manual NR2316-OG Revision #: Date: 5/4/18 Example: The output of channel 1 is connected to a high impedance input and reports 1.25Vrms at the output. The output of channel 2 is connected to a 50ohm terminated input, and reports 0.90Vrms at the output.
  • Page 16 Users manual NR2316-OG Revision #: Date: 5/4/18 2.7 Latch Channel Values The Latch Channel Values Screen allows the user to save the current channel output values for use as the Reference Value for Alert settings. A channel Alert is triggered when a channel output voltage exceeds or falls below a percentage of the Reference Value.
  • Page 17 Users manual NR2316-OG Revision #: Date: 5/4/18 The $PWH (PPS Warmup/Holdover) setting can be changed via the serial port to one of the three available settings: $PWH=0 Off: PPS is disabled regardless of Warmup/Holdover status. $PWH=1 Auto: Disabled during Warmup, Disabled after Holdover is exceeded.
  • Page 18 Users manual NR2316-OG Revision #: Date: 5/4/18 If a dual GPS/GNSS option is installed, the currently selected GPS PPS will be noted with an arrow. This arrow indicates the actual source of the PPS. In addition, the Active GPS will be noted with an arrow as well. The arrow will indicate switching to backup in the case of failure of the primary, or loss of lock, as set in GPS Select setting.
  • Page 19 Users manual NR2316-OG Revision #: Date: 5/4/18 2.10 Save Configuration The Save Configuration screen 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.
  • Page 20 Users manual NR2316-OG Revision #: Date: 5/4/18 2.11 Fault Status The Fault Status screen allows a quick overview of any Channel faults from the front panel. The total fault count is listed, as well as a visual flashing indication of any channels that are beyond the threshold values.
  • Page 21 Users manual NR2316-OG Revision #: Date: 5/4/18 2.12 UTC Mode The user can select how the time is displayed on the screen by choosing between three formats: UTC, 24 hour mode, or 12 hour mode. Toggle through the modes by pressing the SELECT button.
  • Page 22 Users manual NR2316-OG Revision #: Date: 5/4/18 2.14 Power Switch The front or rear 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.
  • Page 23 Users manual NR2316-OG Revision #: Date: 5/4/18 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.
  • Page 24 Users manual NR2316-OG Revision #: Date: 5/4/18 3.2 Antenna Input A/B - SMA SMA female – Internal 3.5V Supply, 25 mA max. The unit can be connected to one or two antenna. If a redundant system is ordered, the second receiver can have its own antenna or the unit can be configured with a splitter to allow one antenna to drive both receivers.
  • Page 25 Users manual NR2316-OG Revision #: Date: 5/4/18 3.4 AC Input The AC input accepts 90-250Vac, 50-60Hz. IEC 320-C14 Compliant. Page #: 25 of 50 www.novuspower.com...
  • Page 26 Users manual NR2316-OG Revision #: Date: 5/4/18 3.5 RS232 DB9 Front (NMEA/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 NR2316 Programmer’s Manual Section 5.0.
  • Page 27 Users manual NR2316-OG Revision #: Date: 5/4/18 3.6 RS232 DB9 Rear (Linux Console Debug) The unit has an RS232 debug port for UART 0 of the embedded linux server. 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.
  • Page 28 Users manual NR2316-OG Revision #: Date: 5/4/18 4.0 Functional Description Page #: 28 of 50 www.novuspower.com...
  • Page 29 Users manual NR2316-OG Revision #: Date: 5/4/18 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:...
  • Page 30 Users manual NR2316-OG Revision #: Date: 5/4/18 4.2 Outputs Each output is fault and electrostatic discharge protected. Each output is independent and any output can be faulted for an indefinite period of time with no permanent damage. Each output is connected to a monitor circuit that detects a local fault on the output.
  • Page 31 Date: 5/4/18 5.0 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. An OCXO device uses a SC (stress compensated) crystal and the part is held at a fix temperature to minimize temperature drift.
  • Page 32 Users manual NR2316-OG Revision #: Date: 5/4/18 Over a broad temperature range, an AT performs very well and much easier to compensate electronically. It is also a simpler crystal to manufacture than a SC cut device. For applications where a stability of a few ppm is acceptable, a TCXO can be a cost effective alternative.
  • Page 33 Users manual NR2316-OG Revision #: Date: 5/4/18 Typical OCXO Another alternative for a frequency reference is an atomic reference. These devices use a change in atomic state of an isotope of Cesium or Rubidium for stability. Instead of a stability of ±50 ppb/year for a typical OCXO- stability of ±1 ppb/year is very common.
  • Page 34 Users manual NR2316-OG Revision #: Date: 5/4/18 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.
  • Page 35 Users manual NR2316-OG Revision #: Date: 5/4/18 Kalman Filter Performance: Page #: 35 of 50 www.novuspower.com...
  • Page 36 Users manual NR2316-OG Revision #: Date: 5/4/18 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. Page #: 36 of 50 www.novuspower.com...
  • Page 37 Users manual NR2316-OG Revision #: Date: 5/4/18 7.0 Programming Guide (RS232 Port: Front and Rear) The NR2316 can accept user commands through the RS232 port which will provide specific fault detection performance, and which may be customized by the user. The settings can be saved in non-volatile flash memory.
  • Page 38 Users manual NR2316-OG Revision #: Date: 5/4/18 7.1 RS232 Commands Command Setting Response Description Query Baud Rate on rear panel RS232. (Default = $BAUDNV 38400). Front Panel is 38400 baud. RS232 REAR Assign Baud rate to Rear Panel RS232 port. Default PANEL BAUD $BAUDNV=<current Baud Rate>...
  • Page 39 Users manual NR2316-OG Revision #: Date: 5/4/18 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 40 Users manual NR2316-OG Revision #: Date: 5/4/18 Setting Command Response Description $CAL<n>=nn.nn Query or set Cal Factors for specific ADC CAL FACTORS $CAL<n>=nn.nn conversions. See list of Cal Factors numbered for $CAL1=11.10 appropriate measurement parameters. These settings should only be changed by an authorized $ACTFRP=0 technician.
  • Page 41 Users manual NR2316-OG Revision #: Date: 5/4/18 The following commands are passed to the internal GPS reference. Setting Command Response Description This command will force the DAC Control Voltage to DAC VOLTAGE $DAC $DAC=N.NNNNN a specific value. This value is modified perpetually by the GPS loop, and saved to flash memory.
  • Page 42 Users manual NR2316-OG Revision #: Date: 5/4/18 In PPS stabilization mode, this threshold determines FREQUENCY the number of bits of frequency correction below VARIANCE which the PPS is determined to be steerable. If the THRESHOLD FOR variance in frequency is below this threshold, and...
  • Page 43 Users manual NR2316-OG Revision #: Date: 5/4/18 FREQUENCY LOOP Sets the overall exponential calibration coefficient EXPONENTIAL CAL $MLPOW=2 $MLPOW=2 which weights the frequency correction as it is FACTOR applied. Higher values are more aggressive. (0 to 6) 7.2 Status Byte Key...
  • Page 44 Users manual NR2316-OG Revision #: Date: 5/4/18 0x1<<7 Channel 8 Fault (cabling, short, etc) 0x1<<8 Channel 9 Fault Amp Gain Test for Alert is 0x1<<9 Channel 10 Fault enabled with $AMP=1 0x1<<10 Channel 11 Fault command via RS232 Hex Value (OR'd)
  • Page 45 Users manual NR2316-OG Revision #: Date: 5/4/18 0x1<<14 Channel 15 Fault Hex Value (OR'd) Status Message Primary and 0x1<<0 Source Input A out of range Secondary 0x1<<1 Source input B out of range Power Supply 0x1<<2 Digital PS out of range Status 0x1<<3...
  • Page 46 Users manual NR2316-OG Revision #: Date: 5/4/18 Status 0x1<<0 Flash Read Boot Error (Deprecated) 0x1<<1 Potentiometer Read/Set Fail (Optional) 0x1<<2 Reserved 0x1<<3 Reserved 0x1<<4 PCB Assembly Input A/B Select Fail (Deprecated) 0x1<<5 Reserved 0x1<<6 Reserved 0x1<<7 Reserved 8.0 Technical Specification 8.1 Performance...
  • Page 47 Users manual NR2316-OG Revision #: Date: 5/4/18 1 Hz -95 dBc/Hz 10 Hz -120 dBc/Hz 100 Hz -145 dBc/Hz 1 kHz -150 dBc Hz SNMP (option) Remote monitoring & control Internet Parameters monitored Output amplitude, all power supplies, GNSS lock status, number of Locally –...
  • Page 48 Weight 9.0 LIMITED HARDWARE WARRANTY Novus Power Products (hereinafter Novus) warrants its products to the original end user (“original purchaser”) and warranty is not transferrable. Novus guarantees that the NOVUS hardware products that you have purchased from NOVUS are free from defects in materials or workmanship under normal use during the LIMITED WARRANTY...
  • Page 49 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 50 5/4/18 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 CONNSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.
  • Page 51 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 52 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 53 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 54 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 55 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 56 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 57 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 58 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 59 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 60 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 61 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 62 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 63 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 64 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 65 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 66 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 67 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 68 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 69 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 70 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 71 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 72 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 73 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 74 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 75 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 76 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 77 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 78 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 79 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 80 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 81 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 82 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 83 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 84 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 85 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 86 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 87 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 88 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 89 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: $PERDSYS GPIO <CR> <LF> Contents Range Default Remark...
  • Page 90 Users manual Appendix A Revision #: Date: 07-14-15 Proprietary NMEA Output Sentences This sentence is a protocol only for our company. It starts from “$PERD” which shows that it is an original sentence. – Output the Command Reception Check Format: $PERDACK , command , sequence , subcommand *hh <CR>...
  • Page 91 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 92 Users manual Appendix A Revision #: Date: 07-14-15 Pps status: present pps is sync with UTC (USNO) Page 42 of 58...
  • Page 93 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 94 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 95 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 96 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 97 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 98 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 99 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 100 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 101 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 102 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 103 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 104 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 105 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 106 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 107 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 108 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 109 $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 110: 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 111: 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 112: 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 113: 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 114: 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 115: 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 116: 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 117: 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 118: 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 119: 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 120: 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 121: 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 122: 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 123: 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 124: 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 125: 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 126: 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 127: 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 128: 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 129: 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 130: 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 131 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 132 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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