Patent ID: 7936776

Claim:
A system for data communication, the system comprising: a first circuit card; a first transfer card coupled to the first circuit card; a second circuit card; a second transfer card coupled to the second circuit card; a first switched network card; a first interface card coupled to the first switched network card; a second interface card coupled to the first switched network card; a first data communication link connecting the first transfer card and the first interface card; and a second data communication link connecting the second transfer card and the second interface card; wherein: the first switched network card is coupled to the first interface card and the second interface card; and the first switched network card and the first circuit card are different types of cards wherein: the first transfer card, the first circuit card, and the first backplane are associated with a first framework; the first interface card, the second interface card, the first switched network card, and the third backplane are associated with a second framework, the first framework and the second framework being associated with different physical locations; and the first transfer card has no direct connection to the second interface card to assure that the second circuit card is not influenced when the first transfer card is replaced.