Genuine Leica USB data cables utilize a built-in Texas Instruments (TI) or Prolific chip.
Do you have the or a third-party cable?
You should see "Prolific USB-to-Serial Comm Port (COMx)" without a yellow exclamation mark.
What or code do you see in Device Manager? What data transfer software are you trying to use?
Follow the on-screen prompts and click "Finish" when complete. LEICA TC 407 driver
Right-click the downloaded setup file ( .exe ) and select Run as Administrator .
Here is a summary of the work process with the Leica TC407:
: Most modern users connect via a USB-to-Serial adapter (like the Leica GEV189 Go to product viewer dialog for this item. Go to product viewer dialog for this item.
This happens when another program is locking the assigned COM port, or the software configuration is pointing to the wrong port number. Genuine Leica USB data cables utilize a built-in
Plug the USB end into your PC and the Lemo connector into the Leica TC407. Turn the total station on. Verifying the Installation via Windows Device Manager
To successfully transfer survey data, you must install both the hardware communication drivers and the interface software:
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.
If you are using a generic, third-party Lemo-to-USB cable, determine the chipset (usually Prolific PL2303 or FTDI) and download the latest driver directly from the chipset manufacturer's website. Step 2: Run the Installer What or code do you see in Device Manager
The Leica TC 407 does not utilize a native USB port. Instead, it relies on a proprietary Leica 5-pin or 8-pin serial connection.
Configure the baud rate (usually 9600 or 115200) to match the settings in your transfer software.
Do you need the specific for the cable or help setting the Baud rate on the instrument to match your PC?
Some users have reported a "Weak signal error 6" after firmware modifications.