noun
physical layer; PHY
Technical term in computer networking; the lowest layer of the OSI model, responsible for transmission of raw bits over a physical medium.
物理層では、ケーブルや無線信号の電気的な仕様が定義される。
The physical layer defines the electrical specifications of cables and wireless signals.
イーサネットの物理
There are various speed standards for the Ethernet physical layer.
The OSI reference model is the seven-layer framework that includes the physical layer as layer 1.
Compound of 物理 (ぶつり, 'physics') and 層 (そう, 'layer'), a direct translation of the English term 'physical layer'.