| 摘要 |
A cross-connector (200) for synchronous digital networks, such as SDH/SONET networks, includes a plurality of input/output interfaces (6a...6n) each handling a plurality of incoming/outgoing digital streams. The interfaces are connected to a common bus (5), to which they access in time sharing, at instants determined by a timing card (7). An adaptation unit (63) on each card (6a...6n) provides for dividing the streams into data blocks (CSTM-1) with a format specific for transmission over the bus, inserting concurrent data blocks of all incoming streams into a common frame (DIF), and inserting each common frame into a time slot of a multiplexed frame (DMIF) transmitted over the bus (5).
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