Driver !new! — Leica Tc 407

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

If your software says the COM port is unavailable or timed out: LEICA TC 407 driver

For successful data transfer, the settings in your PC software must perfectly match the settings inside your TC407 instrument: 8 Parity: None Stop Bits: 1 A proprietary on one end (plugs into the Leica TC 407)

If using a USB-to-RS232 adapter, ensure its driver is correctly installed—it will appear as a COM port number (e.g., COM3, COM4) in your computer's Device Manager. This COM port number must be selected in Leica Geo Office before starting the transfer. Note for Windows 10/11 users: Older, counterfeit, or

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

Direct USB-to-Lemo cables. These cables contain a built-in chip that requires specific drivers to create a Virtual COM Port on your computer. Driver Types and Compatibility