When you buy a "USB to Serial" adapter (or a "Leica cable" that has a USB plug on one end), you are actually buying a small chip inside that cable. There are two major chip manufacturers:
Download an older Prolific driver version (such as version 3.2.0.0 from 2007). Right-click the device in Device Manager, choose Update Driver -> Browse my computer -> Let me pick from a list , and select the older version.
The is not a mythical piece of lost software—it is simply the combination of a robust USB-serial bridge driver (FTDI or Prolific) and the correct Windows communication settings. While the total station itself is aging, its data transfer capabilities remain fully functional with modern PCs if you follow the steps outlined above.
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.
(known for surveying equipment) does not manufacture a “TC 407” model. The closest match is the Leica TC407 (part of the older TC400 series of total stations). If that’s what you mean, then the “driver” typically refers to: LEICA TC 407 driver
: Detailed driver lists and software patches (like Leica Instrument Tools ) can often be found on specialized dealer support pages like SCCS Surveying Knowledge Base .
If you are using a generic USB-to-serial adapter, you may need Prolific or FTDI drivers, which are often available through DriverScape . How to Install the LEICA TC 407 Driver
Your (e.g., Windows 10, Windows 11). The exact model or brand of the cable you are using.
Used in many standard and aftermarket GEV189 cables. When you buy a "USB to Serial" adapter
If using a GEV102 cable with a third-party USB adapter, you must install the driver specific to that adapter's manufacturer. 2. Official Software for Data Exchange
Leica Geosystems uses Prolific or FTDI chipsets inside their official data cables.
Your computer treats the TC 407 like a modem. If you are using a standard 9-pin serial cable (DB9 to DB9) on an old industrial laptop with a native COM port, you need . The problem arises because modern laptops lack serial ports.
Follow the on-screen prompts and click once complete. The is not a mythical piece of lost
Ensure no other software (like a mouse driver or sync tool) is occupying that specific COM port.
: 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.
The Ultimate Guide to the Leica TC407 Total Station Driver Connecting a legacy Leica TC407 total station to a modern computer can be challenging. The Leica Geosystems TPS400 series, which includes the TC407, remains a highly accurate and reliable instrument for surveying, construction, and engineering. However, establishing a stable data link requires the correct driver, specific hardware configurations, and the right software tools. 1. Understanding the Leica TC407 Interface
Some users have reported a "Weak signal error 6" after firmware modifications.
Right-click the downloaded setup file (usually an .exe file) and select . Follow the on-screen prompts to complete the installation.
Leica Survey Office is the original software package supplied with the instrument on a CD-ROM. Designed for older Windows versions (95/98/ME/NT/2000/XP), it includes Leica Geo Office Tools and a Format Manager for creating custom data output formats.