Finally, the detailed principle design for each switching board was given, and the circuit schematic drawing of discrete input switching board was presented.

采用自检回绕思想，给出各转接电路板详细设计原理，并以离散量输入转接板设计为例给出了电路设计原理图。

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This article is proposed to develop a new type of digit programme-controlled telephone switching board which is based upon the CAN bus to replace the old automatic telephone switchboard.

本文提出研制新型的基于CAN总线的数字程控交换机替换原有的全电子式自动电话交换机。

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The utility model of the lamp switching support is convenient for users to install and use by arranging a connection board to fix the two switching nodes.

本实用新型灯具转换支架通过设置一连接板连接固定二转换接头， 方便用户安装使用。

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Consumer Focus's Audrey Gallacher believes collective switching can provide a good deal across the board.

BBC: Energy bill scheme in Belgium could help UK consumers