End-of-life overview
TSshield web services were officially discontinued on October 31, 2021.
Downloading total station firmware
TSshield services and website have been decommissioned and can no longer be accessed.
The latest firmware releases for total stations can be downloaded from the following web sites:
Topcon total stations
Use the myTopcon product page for the instrument.
Click the Firmware & Software Updates button.

Sokkia total stations
Select the product page for the instrument.
Firmware will be in the Updates section of the instrument product page.

OAF downloads
OAF files such as LPS and encryption will now be emailed from the Topcon Options team and installed via USB drive onto the instrument.