This white paper discusses the development ecosystem for time-sensitive networking (TSN) compatible automation devices. Created for automation vendors, it provides a practical insight on how to implement the technology and the importance of conformance testing for TSN products. In order to upgrade their existing automation devices to provide key TSN capabilities, automation vendors need to be able to identify the development options that best fit their existing engineering methods. The white paper helps automation vendors navigate the development ecosystem options by detailing the software and hardware methods available, their characteristics, and how they can help vendors deliver state-of-the-art components. Moreover, it discusses how to integrate TSN-compatible functions in existing devices. It also brings awareness to the importance of independent third-party conformance testing to validate end product performance, particularly its ability to demonstrate to end users that the devices will operate as expected when combined with compatible products from other vendors. To this end, the document explains the CLPA’s process for certifying CC-Link IE TSN automation devices.