通信 つうしん制御 せいぎょ装置 そうちではありませんでした
tsūshinseigyosōchidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 通信制御装置

1. Was not a communication control device.; Was not a communications controller.

Past/Perfective
Negative
Polite
Formal Register
Computing