幹かん線せん結けつ合ごう器き

noun

trunk coupling unit; trunk connecting unit; TCU

Computing term for a device that connects trunk lines in a network or telephone system.

• 幹かん線せん結けつ合ごう器きは、ネットワークの幹かん線せん同どう士しを接せつ続ぞくする装そう置ちです。

  A trunk coupling unit is a device that connects trunk lines in a network.