OPS unit with DIS software is used for diagnosis, which is carried out via OBD-II socket. Config 1.OPS Multiplexer. 2.OBD-II diagnostic cable. 3.Most diagnostic cable. 4.LAN Cable. 5.SSS PC(Optional). 6.IBM T23/T30 (Optional). 7.DIS 80G HD (Optional). 8.Wireless Card (Optional). 9.Toolbox(Optional).