It seems that the product is defective. How can I return it? Follow Sandra Portmann July 09, 2019 06:07 Updated The respective subsidiary or sales partner will be happy to help you. Please check the contact information of the local contact. Related articles Warranty EPOS4: Rules and Hints for the implementation of a RS232 / UART protocol driver MAXPOS / BISS-C: Compatibility of BISS encoders (e.g. Renishaw) What information is required by Support? Comments 0 comments Please sign in to leave a comment.