| 摘要 |
<p>A method and data interface unit for routing two or more data input streams into one or more data output streams is disclosed. A Data Interface Unit (20) has two input modules (30,32), providing four interface input channels (40-46). A logical AND gate (70) receives four input TDM buses; and outputs on two output TDM buses to a bus interface ASIC (80). Two or four TDM buses can be switched to a respective TDM output bus. For two such buses, this is done in a manner such that a first data block from a frame of an input stream is mapped to the beginning part of an output stream, and a second data block from a frame of another input stream is mapped to the end part of an output stream.</p> |
