交こう換かん機き

noun

switch; exchange

Computing and telecommunications term for a device that connects circuits or routes data. Often refers to a telephone exchange or network switch.

• 電でん話わ交こう換かん機きが故こ障しょうして、一いち時じ的てきに通つう話わができなくなった。

  The telephone exchange broke down, and calls were temporarily unavailable.