| 摘要 |
A conversion apparatus, which mutually connects a layer 2 network and an asynchronous network, including a first converter that converts a check frame received from the layer 2 network into a check cell of the asynchronous network to transmit the check cell to the asynchronous network; and a second converter that converts the check cell received from the asynchronous network into the check frame of the layer 2 network to transmit the check frame to the layer 2 network.
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