All suppliers of fibre-optic modules need to program the on-board EEPROM. In the past this was always done at the factory and we supply boards into many manufacturers who use our boards in their factory final test and programming.
In recent times, there has been a trend towards programming optics in the field. This reduces costs and provides a faster response time to the end user as less inventory has to be kept. We have helped many optics suppliers make that a reality too.