ST03A 3.7.14 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. ST03A relates to Internet & Network Tools. The ST03A installer is commonly called ST03A.exe.
This free software is an intellectual property of Knorr-Bremse AG. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The most popular versions of the software are 3.7, 3.6 and 3.5.
From the developer:
Service Terminal (ST03A) is the railway brake system diagnostic and maintenance software. ST03A is designed for Microsoft Windows platforms and supports all ESRA brake systems. The software is able to communicate with ESRA electronics via Ethernet, RS-232 or CAN connection.
You may want to check out more software, such as ArpCacheWatch, Onlineeye Pro or Alchemy Eye, which might be similar to ST03A.