Depending on your cable setup, you will need to identify and install one of the following driver packages: The Leica GEV189 USB Cable Driver
Confirm that the COM port number assigned in Device Manager matches the port selected in your software. If the port number is higher than COM10, some older software packages will not recognize it. You can change this by opening the device properties in Device Manager, clicking Port Settings ➡️ Advanced , and reassigning it to a lower available number (like COM1 or COM2). Data is Corrupted or Appears as Strange Symbols
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The Ultimate Guide to the Leica TC407 Total Station Driver Connecting a legacy Leica TC407 total station to a modern computer can be challenging. The Leica Geosystems TPS400 series, which includes the TC407, remains a highly accurate and reliable instrument for surveying, construction, and engineering. However, establishing a stable data link requires the correct driver, specific hardware configurations, and the right software tools. 1. Understanding the Leica TC407 Interface LEICA TC 407 driver
Connectivity is managed through Leica-specific office software, which acts as the interface for the driver's COM port:
Option A: You are using the Leica GEV189 or GEV267 USB Cable
). These cables require specific drivers (often FTDI-based) to create a virtual COM port on your Windows PC.
to your PC. If Windows does not recognize it immediately, go to Device Manager , find the "FT232R" or "Serial USB Converter" entry, and manually update the driver pointing to your downloaded folder. Depending on your cable setup, you will need
This is the most frequent issue on Windows 10 and 11, specifically affecting Prolific chipsets. It indicates that Windows has automatically installed a newer driver version that deliberately blocks older, counterfeit, or phased-out hardware chips.
First, a quick overview of the instrument itself. The Leica TC 407 is an electronic total station from Leica Geosystems' TPS400 series. Known for its durability and user-friendliness, it was designed for construction sites and basic surveying tasks like measurements and setting out points.
If using cables like the GEV189, GEV195, or GEV218 , you must install the specific USB-to-Serial driver for that hardware.
Contemporary laptops and desktops have abandoned RS232 serial ports in favor of USB-A and USB-C ports. Data is Corrupted or Appears as Strange Symbols
: Official drivers are typically available on the Leica myWorld portal or third-party repositories like DriverScape .
Most surveyors use the Leica GEV102 (RS232 serial cable) paired with a serial-to-USB adapter, or the Leica GEV189 (or compatible aftermarket) cable, which integrates a USB-to-Serial converter directly into the cord.
Open Device Manager, right-click your COM port, go to Properties, find the Power Management tab, and uncheck "Allow the computer to turn off this device to save power." Conclusion and Next Steps