outgoing trunk circuit
... OGC Outgoing Trunk Circuit 送出的中继线路 LPOGT LooP OutGoing Trunk 环路去话中继 OTC Outgoing Trunk Circuit 出中继电路 ...
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出中继电路群 outgoing trunk circuit group
送出中继线电路 OTC OutgoingTrunkCircuit
本文论述了MH89780芯片的性能原理，并设计出实用的数字中继接口电路。
In the paper, the performance principle of the MH89780 chip has been analysed, and a practical digital trunk interface circuit has been designed.
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