| 摘要 |
The circuit interfaces data of B1, B2 channel to asynchronous terminal. The interface circuit converts the serial data of B1, B2 channel to serial data of asynchronous data type and interfaces between B-channel data sender/receiver and asynchronous terminal. The interface circuit consists of an DASL(Digital Adapter for Subscriber Loops)(20), the first and the second serial input/outputs(22) (24), start bit removing blocks(28) (36), a B2-channel data stream converter(32), a B2-channel data converting sender(34) and clock gates(30) (38).
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