Advanced telecommunications computing architecture data exchange system, exchange board and data exchange method

An advanced telecommunications computing architecture (ATCA) data exchange method, comprising:

• setting at least one exchange board in an ATCA system, wherein the exchange board comprises at least one Fabric port group, and each Fabric port group is connected to a service board through a backboard to form a first exchange channel for broadband service data exchange, wherein each Fabric port group comprises four difference sending and receiving port pairs, and each difference sending and receiving port pair comprises a pair of difference receiving ports and a pair of difference sending ports;
• a connector 20 in the exchange board in a Fabric interface defined by Peripheral Component Interconnect Industrial Computer Manufacturers Group PICMG comprises at least one difference sending and receiving port pair, and each difference sending and receiving port pair is connected to one service board through the backboard to form a second exchange channel, which is independent of the first exchange channel and is configured for a separate narrowband service data exchange that is independent of the broadband data exchange;
• receiving, by the exchange board, broadband data sent from the service board and performing broadband service data exchange through the first exchange channel;
• and
• receiving, by the exchange board, narrowband data sent from the service board and performing narrowband service data exchange through the second exchange channel.