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

Models: OM-20000141

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