We have just received a used Cajun P550 with a layer 2 sup card. The previous owner did not remove their config. We need to access the switch from the console port to reset the config back to factory default, and are not able to get it to show the prompt when using hyperterm. We have several other P550's and are able to access them using the DB9 connectors and the straight thru cable that came with those P550's. Anyone have any ideas we could try to get the config back to factory default without having to get connected thru the console port?