Novatel OM-20000141 user manual 8 COM3 Serial Port, Enable RS-422 serial connections

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Chapter 2

SPAN Installation

2.3.8COM3 Serial Port

The COM3 serial port is multiplexed with the USB port, so only one of these two ports can be enabled at a time.

The USB port is enabled by default. If the system configuration requires an additional serial connection, disable the USB port and the EVENT1 (MARK1) input and enable the COM3 port.

2.3.8.1Enable the COM3 Serial Port

To enable COM3, issue the following commands:

ENCLOSURECOMSELECT COM3

SAVECONFIG (optional)

The command above also disables the EVENT1 input.

2.3.8.2Connect the COM3 Serial Port

If using a NovAtel interface cable (part number 01019015):

1.Connect the interface cable to the AUX connector on the SPAN-IGM.

2.Connect the COM3 Port connector on the cable to the communication device.

If creating a custom interface cable, refer to Appendix A, Technical Specifications on page 52 for the AUX connector pin out.

2.3.8.3Disable the COM3 Serial Port

If the system configuration changes and the USB port is needed instead of the COM3 port, disable the COM3 port and enable the USB port.

ENCLOSURECOMSELECT USB

SAVECONFIG (optional)

The command above also enables the EVENT1 input.

2.3.9Enable RS-422 serial connections

The User port (COM2) and the MIC port can operate as either RS-232 or RS-422 serial ports. By default, both ports operate as RS-232.

For the User port, the standard used is determined by the Mode1 pin on the Main connector.

•When the Mode1 pin is left open or tied high, the User port operates as an RS-232 serial port.

•When the Mode1 pin is tied low, the User port operates as an RS-422 serial port.

For the MIC port, the standard used is determined by the Mode2 pin on the Main connector.

•When the Mode2 pin is left open or tied high, the MIC port operates as an RS-232 serial port.

•When the Mode2 pin is tied low, the MIC port operates as an RS-422 serial port.

The Mode2 pin also enables and disables the CAN bus port.

•When the Mode2 pin is left open or tied high, the CAN bus port is enabled.

•When the Mode2 pin is tied low, the CAN bus port is disabled.

When the serial ports are switched to RS-422, there are changes to the pinout on the Main connector. For information about the changes, see SPAN-IGM Ports on page 56.

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SPAN-IGM User Manual Rev 2

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Contents SPAN-IGM OM-20000141 Rev SeptemberWarranty Return Instructions Proprietary NoticeTable of Contents Frequently Asked Questions Replacement Parts Figures Tables NovAtel Knowledge Base Before Contacting Customer Support Contact InformationCE Notice FCC NoticesIndustry Canada Weee NoticeHazard Impact Lightning Protection Installation and Grounding ProcedureWhat is the hazard? Actions to Mitigate Lightning HazardsPrimary and Secondary Lightning Protection Ref # Description USAIntroduction Fundamentals of Gnss + INSSPAN-IGM Integrated Gnss + INS unit System ComponentsScope Gnss antenna PC softwareConventions Required Equipment Span InstallationConnector Type Connections SPAN-IGM HardwareSPAN-IGM Cables SPAN-IGM Cables Use a USB cable to log raw data NovAtel Port PurposeHardware Set Up Typical SPAN-IGM Set Up Serial Port RadioTypical SPAN-IGM Set Up USB Port Radio Mount the Antenna Mount the SPAN-IGMConnect Power Connect the Antenna to the SPAN-IGMConnect a Computer Using a Serial Connection Connect a Computer to the SPAN-IGMO Strobe Signals Connect I/O Strobe SignalsConnect a Computer Using a USB Connection Signal Description aDisable the COM3 Serial Port Enable RS-422 serial connectionsEnable the COM3 Serial Port 8 COM3 Serial PortOdometer connection Odometer RequirementsSpan IMU Configuration Software ConfigurationGnss Configuration Pin M12 Connector Function J2 Wire Bundle On Cwpt SensorConfigure Span with Connect SPAN-IGM LEDs SPAN-IGM LEDsOff Flashing Slow 1Hz Flashing Fast 1Hz Span Operation Communicating with the Span SystemINS Window in NovAtel Connect Chapter Span OperationReal-Time Operation Span Operation ChapterSystem Start-Up and Alignment Techniques AsciiManual Alignment Kinematic AlignmentDual Antenna Alignment Solution Parameters Navigation ModeInssolutiongood Data Collection Logging Restriction Important Notice Vehicle to Span Frame Angular Offsets Calibration RoutineSpan Wheel Sensor Messages Wheel Sensor Update LogicMeasurement Timing and Frequency Course Over Ground Set up a Wheel SensorAzimuth Sources on a Span System Inertial AzimuthData Collection for Post-Processing Log Azimuth Source FormatVariable Lever Arm Installation SPAN-IGM Dual AntennaConfiguring Align with SPAN-IGM Alignment on a Moving Vessel Aided Transfer Alignment Alignment on a Stationary Vehicle Aided Static AlignmentAutomatic Alignment Mode Automatic Alignment default Span Align Attitude UpdatesUnaided Alignment Local-Level Frame ENU Reference Frames Within SpanSpan Body Frame Span Enclosure Frame Vehicle FrameFirmware Updates Firmware Updates and Model UpgradesNovAtel Firmware and Software Authorization Code Model UpgradesTransferring Firmware Files Updating or Upgrading Using the WinLoad UtilityTypes of Firmware Files Using the WinLoad Utility Open a File to DownloadUpdating using SoftLoad Commands Searching for CardWorking with S-Records Softloadsrec S-RECORDUpgrade Procedure Upgrading Using the Auth CommandXXXXXX,XXXXXX,XXXXXX,XXXXXX,XXXXXX,MODEL,EXPDATE Technical Specifications SPAN-IGM-A1 Technical SpecificationsSPAN-IGM-A1 Environmental Specifications SPAN-IGM-A1 Mechanical DrawingsSPAN-IGM-S1 Gnss Performance SPAN-IGM-S1 Technical SpecificationsSPAN-IGM-S1 Physical Specifications SPAN-IGM-S1 Data RatesSPAN-IGM-S1 Environmental Specifications SPAN-IGM-S1 Mechanical DrawingsPin # Label Description SPAN-IGM PortsMain Port Pinout AUX Port PinoutMIC Port SPAN-IGM Interface CableSPAN-IGM Interface Cable Pin-Out Descriptions User PortSPAN-IGM Align Interface Cable SPAN-IGM Align Interface Cable Pin-Out DescriptionsPin # Labels SPAN-IGM Auxiliary Port Interface CableCOM3 Port Varf DgndFrequently Asked Questions Appendix BSpan System Replacement PartsAccessories and Options Part Description NovAtel PartIndex Index OM-20000141 Rev September

OM-20000141 specifications

The Novatel OM-20000141 is a high-performance multi-GNSS (Global Navigation Satellite System) receiver designed for various applications including precision agriculture, autonomous vehicles, and surveying. This state-of-the-art device combines cutting-edge technologies to provide accurate and reliable positioning data, making it an indispensable tool for professionals in fields that rely on geolocation.

One of the standout features of the Novatel OM-20000141 is its multi-frequency support, allowing it to receive signals from GPS, GLONASS, Galileo, and BeiDou systems. This capability significantly enhances the accuracy and reliability of positioning information, particularly in challenging environments where signal interference can occur. By utilizing multiple frequencies, the OM-20000141 can mitigate errors caused by atmospheric disturbances and multi-path signals, resulting in improved precision.

In addition to its multi-GNSS capabilities, the receiver incorporates advanced RTK (Real-Time Kinematic) technology, enabling centimeter-level accuracy. This is particularly beneficial for applications that require pinpoint geolocation, such as precision agriculture, where farmers need to optimize crop yields and resource usage. The RTK technology allows users to achieve real-time positioning corrections, making it a vital tool for surveying and construction projects that demand high precision.

The Novatel OM-20000141 also features built-in connectivity options, including Bluetooth and USB interfaces, facilitating seamless integration with other devices and systems. This connectivity is crucial for enabling real-time data sharing and remote monitoring, enhancing the usability of the device in various operational environments.

Robustness is another significant characteristic of the OM-20000141. Designed to withstand harsh conditions, the receiver features a durable housing that protects it from dust, moisture, and extreme temperatures. This resilience ensures that the device operates effectively in all weather conditions, making it suitable for outdoor applications.

Furthermore, the receiver is equipped with intelligent positioning algorithms that optimize performance in urban canyons and dense foliage areas, where traditional GNSS receivers may struggle. By leveraging these algorithms, the OM-20000141 can maintain reliable positioning even in challenging environments.

Overall, the Novatel OM-20000141 stands out as a versatile and reliable GNSS receiver, merging advanced technologies to deliver high accuracy and reliability. Its exceptional features make it an invaluable asset for professionals in various industries, enhancing their ability to achieve precise geolocation and optimize their operations.
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