Link board for CMS RPC-production issues

This paper describes the work done in relation to putting a relatively high volume HEP readout electronics module into production. The main features of this fibre optic data transfer board designed for the Compact Muon Solenoid (CMS) Resistive Plate Chamber (RPC) detector are described, concentrating on how the final implementation was arrived at. An automated production testing method is introduced, and results are given of its efficiency in finding faulty boards and localising the faults.