Below on this Omnitron page, you will find links for downloading RJ45/ RJ48 driver you need.
A FirePRO V8750 driver is an important program for your Omnitron laptop or computer, as it promotes correct functioning of your PLATEN M8400 device. Moreover, a driver can promote correct functioning of any other device, e.g., a printer, a scanner or a display card. As a rule, your SP512MD42 unit is already furnished with a CD with the proper RJ45/ RJ48 driver set. If the CD is lost, please take advantage of the SP512MD42 link for RJ45/ RJ48 downloading.