A pipeline pig support rack apparatus includes a frame having a plurality of supports mounted thereon, each extending upwardly from the frame. Normally an exception handler is activated when a software failure occurs and network controller chips or the ASIC interface to a signal bus can operate even though there is a software failure. A decision is made by using the certificate as to whether or not the provider is authorized by the certification authority. The cutter head includes a plurality of arms extending between the base ring and the hub, the arms including a plurality of excavating tools.