Critically, for data transfer, the TC 407 uses a (a 9-pin D-sub connector). It does not have USB, Bluetooth, or Wi-Fi. This physical port is the source of all driver headaches.
If you have recently searched for a "Leica TC 407 driver," you have likely hit a wall of dead links, outdated CD-ROMs, or confusing software jargon. This article cuts through the noise to explain what the driver actually is, why modern operating systems struggle with it, and how to get your TC 407 talking to your computer again.
The Leica TC407 does not feature native USB or Bluetooth connectivity. It relies entirely on a located on the base of the instrument. Connection Hardware Options
The TC407 might display "Communication failure" after a data transfer. LEICA TC 407 driver
Devices like the record TC 407 serial output directly to SD card. No PC driver needed.
To connect a Leica TC 407 to a computer, you generally need three components:
First, a critical clarification: that magically makes the TC 407 work with any software. Instead, the "driver" refers to a combination of two things: Critically, for data transfer, the TC 407 uses
Always plug the data cable into the exact same USB port on your computer. Alternatively, open Device Manager , right-click your port, go to Properties > Port Settings > Advanced , and manually force it to a static COM port number (e.g., COM2).
Keep a backup copy of your working driver installation files on a dedicated USB drive. Windows Update frequently overrides legacy serial drivers during routine system updates, which can unexpectedly disrupt your fieldwork data workflows. Knowing how to quickly roll back or reinstall the driver ensures minimal downtime.
The drivers required depend on the cable you are using to connect the total station to your PC: If you have recently searched for a "Leica
If you continue to face driver issues, consider using an older computer with a native RS232 port or a PCMCIA card, which provides a more stable connection than many USB-to-Serial converters.
The "Leica TC 407 driver" is actually the driver for the USB-to-Serial chip inside the cable, allowing Windows to assign a virtual COM Port to the total station. Where to Download the Official Drivers
19200 (Ensure this matches on both the TC 407 and the PC). Data Bits: 8 Stop Bits: 1 Parity: None Troubleshooting Common Driver Issues