FDI & Unified EDDL Technical Specifications
The FDI Technical Specifications are sold as a collection of 16 documents that specify the different aspects of the protocol and test procedures. Additionally, the FDI Tech Spec package includes the Unified EDDL Technical Specifications which consists of 3 documents. The specifications are sold as a single package that includes all of the individual documents in the set (total of 19).
You can see a free online-viewable version on our website: https://www.fieldcommgroup.org/technologies/fdi/fdi-technology-detail
Members get free electronic downloadable access. Non-members can view the online version linked above.