摘要 |
A system for different data frames access and transport over digital transport network for accessing and transporting different data frames, comprising: at least one User-Network Interface, which is used to couple with the user's network; at least one Network-Network Interface, which is used to couple with said digital transport network to transfer data; a data converting device, which is coupled with said UNIs and said NNIs to convert data formats between said UNIs or data formats between said NNIs or data formats between said NNIs and said UNIs; wherein said data converting device comprises a virtual interface device, which comprises: at least two device interfaces, a virtual interface processing unit, a rule database, a control interface unit and an inter-device interface, so as to improve access ability of the device. <IMAGE> |