: Since most modern PCs lack a DB9 serial port, you will likely need a USB adapter.
Reset the TC 407 communication settings to factory defaults.
Identify the chipset (usually or Prolific PL2303 ). LEICA TC 407 driver
Known for excellent stability on Windows 10 and 11. Drivers are usually downloaded automatically via Windows Update, or directly from the FTDI Chip website (VCP drivers).
You should see an entry such as or "Prolific USB-to-Serial Comm Port" followed by an assigned port number in parentheses—for example, (COM3) . : Since most modern PCs lack a DB9
: Surveyors often share stories of these units surviving falls onto concrete or being used in torrential rain and still working perfectly decades later. The Button Quirk
The "driver" for a Leica TC 407 is typically the . Because the TC 407 uses a serial connection, most users utilize a GEV189 or similar USB cable that requires its own driver to create a "Virtual COM Port" on your PC. Known for excellent stability on Windows 10 and 11
If instead you meant a or an industrial driver for a Leica motorized stage , please clarify — I’m happy to rewrite the review for the correct device.
If your coordinate or raw measurement transfers freeze midway through:
Connect the serial end to the port underneath the TC 407 screen and the USB end to your computer.