Finally, it indicates the problems to which one should pay more attention when designing power and ground wire in Subscriber Circuit Board.

最后提出了用户电路板中印制板电源、地线布线设计时应注意的问题。

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Subscriber line interface circuit is an important part of digital program-controlled switching system.

模拟用户线接口电路是数字程控交换系统的重要组成部分。

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The combination of high-speed Internet and inexpensive digital components allowed Aereo to pack 80 individual TV antennas and receivers on a circuit board and dynamically assign them to individual viewers on demand, then stream content to each subscriber.

FORBES: Barry Diller's Aereo Streaming-TV Service Wins Big Ruling Against Broadcasters