Driver _hot_: Leica Tc 407

The Leica TC407 Go to product viewer dialog for this item. total station does not use a standalone "driver" for the device itself; instead, connectivity depends on a USB-to-Serial data cable and the associated ProLific or FTDI cable drivers. 1. Cable Driver Installation Leica TC407 units connect to modern PCs via a 5-pin Lemo-to-USB cable. Identify the Chip: Most cables use either the ProLific PL2303 Go to product viewer dialog for this item. or FTDI FT232R Go to product viewer dialog for this item. chipset.

Driver Source: Official drivers are typically available on the Leica myWorld portal or third-party repositories like DriverScape.

Manual Install (Windows 10/11): If the cable shows as an "Unknown Device" (often listed as FT232R USB UART Go to product viewer dialog for this item.

) in the Windows Device Manager, you must right-click it and select Update Driver, then point to the folder containing the extracted driver files. 2. Required Office Software LEICA TC 407 driver

Drivers only enable the connection; you need software to actually transfer data:

Leica Geo Office (LGO) / LGO Tools: The standard legacy software for downloading GSI or IDEX files.

Leica Survey Office: An older alternative often used for simple data exchange. The Leica TC407 Go to product viewer dialog for this item

Leica Infinity: The modern replacement for processing field data. 3. Communication Settings Software | Leica Geosystems

Purpose of a Driver

  • Provide a communication link between the TC407 and a PC or data-collector.
  • Enable file transfer (measurement/job files), remote control, firmware updates, and backup.
  • May be implemented as a USB/serial driver, Leica application software, or via standard protocols (e.g., SD card, Bluetooth, or RS232).

2. Use a Serial-to-Bluetooth adapter

Devices like the Adaptive TRIG41 or Sena Parani-SD1000 emulate a serial port over Bluetooth. Your PC sees the TC 407 as a virtual COM port without a USB cable. Bluetooth drivers are built into Windows.

Compatibility & System Requirements

  • Windows is most commonly supported (Windows 10/11 typically). Check Leica support for specific OS compatibility.
  • macOS/Linux: basic file access via SD/Bluetooth often works; drivers for virtual COM may be limited.
  • Data-collectors: many field controllers (Trimble, Leica, etc.) support direct communication; check device compatibility lists.

Configuring the Handshake (The "Soft Driver")

Once your USB-to-serial adapter is recognized by Windows as a COM Port (e.g., COM3), you have to match the "language" of the TC 407. This is often where surveyors fail, mistaking protocol mismatch for a driver failure. Purpose of a Driver

Using data collection software (like SurvCE, Carlson, or Leica GeoOffice), you must set the TC 407’s physical port to match the software's expectations.

Standard TC 407 Serial Settings:

  • Baud Rate: 4800 (or 9600 – check your internal settings on the TC 407 via CONF button)
  • Data Bits: 8
  • Parity: None
  • Stop Bits: 1
  • Protocol: RTS/CTS (Hardware handshake) or "Leica Protocol" (GSI)

Step-by-Step on the TC 407 Keypad:

  1. Press CONF (Configuration).
  2. Navigate to RS232 settings.
  3. Set BAUD to match your PC.
  4. Set PARITY to 8-None-1.
  5. Set HANDSHAKE to RTS/CTS.

Troubleshooting "Driver Not Found"

If your PC says "Driver error" or "USB device not recognized":

  • Cable Power: The TC 407 does not power the serial cable. If you are using a simple USB-RS232 adapter, it will work. If you are using a "docking cable," ensure it has a power supply or a separate USB boost.
  • Windows Driver Signing: (Windows 10/11 only). Old Prolific drivers are unsigned. You must disable "Driver Signature Enforcement" via the Advanced Startup menu to install legacy drivers.
  • The "Leica 5-pin" Lemo: Does your TC 407 have the round 5-pin Lemo port (GKL211) instead of the 9-pin D-sub? If so, you cannot use a standard cable. You need a specific Lemo 5-pin to DB9 null modem cable. The driver is still for the USB adapter, but the pinout is mission-critical.

The Complete Guide to the LEICA TC 407 Driver: Installation, Compatibility, and Troubleshooting

❌ Problem 2: Connected but No Data Transfer

Cause: Wrong cable type or flow control mismatch.
Fix:

  • Use a null-modem cable (pins 2 and 3 swapped) – not a straight-through modem cable.
  • Or buy a “null-modem adapter” (female-female) for your existing cable.
  • Set flow control to NONE on both device and software.