Leica Tc 407 Driver ((link)) -

Windows assigns different COM port numbers if you plug the cable into different USB slots.

If you use a Leica USB cable or a USB-to-RS232 adapter recommended by Leica, follow these steps:

A: Yes, using FTDI VCP driver for macOS, then run Windows surveying software via Parallels or Wine.

Note for Windows 10/11 users: Older, counterfeit, or phased-out Prolific chips (like the PL2303HXA) are explicitly blocked by newer Windows updates. You may need to manually roll back to an older Prolific driver version (e.g., v3.2.0.0) to make it function. Option C: FTDI Virtual COM Port (VCP) Drivers

Fix: In Device Manager, right-click the port -> -> Port Settings -> Advanced . Change the COM Port Number dropdown to an open slot between COM1 and COM4. LEICA TC 407 driver

Do you have the or a third-party cable?

A driver is a software program that allows a computer to communicate with a hardware device, in this case, the LEICA TC 407 total station. The driver acts as a translator between the computer's operating system and the device, enabling the computer to send and receive data to and from the device.

Visit the official FTDI Chip or Prolific Technology websites to grab the latest Virtual COM Port (VCP) drivers.

While expensive, modern total stations include USB, Bluetooth, and native Windows drivers. Windows assigns different COM port numbers if you

| Error Message | Cause | Solution | |---|---|---| | “Code 10: Device cannot start” | Faulty Prolific chip or wrong driver | Uninstall the driver, use the official Prolific driver cleaner, then install version 3.2.0.0 or newer. | | “The requested COM port is in use” | Another program (surv software) is holding the port | Close all software. In Device Manager, change the COM port number from 5 to 8 (or any unused number). | | “Data transfer freezes after 10 points” | Flow control mismatch | On the TC 407, set flow control to Software (Xon/Xoff) and in Windows Port Settings, set Flow Control to Xon/Xoff . | | “Driver not signed for Windows 11” | Older FTDI driver | Download the latest FTDI driver from 2024 or newer. Signing is mandatory for Windows 11 22H2+. |

: If you are using an official Leica USB cable, you need the Leica USB Optical Survey Instrument Driver . This is often compatible with Windows 7, 10, and 11.

Disable Driver Signature Enforcement and install an older driver version.

the driver for your specific data cable before plugging it in. You may need to manually roll back to

The LEICA TC 407 driver offers several functionalities that make it an essential tool for surveyors and construction professionals. Some of the key functionalities of the driver include:

A proprietary on one end (plugs into the Leica TC 407).

Identify the "Prolific USB-to-Serial Comm Port" or "USB Serial Port".