noun
physical medium dependent (PMD)
Technical term in computer networking; refers to the sublayer of the physical layer that handles the actual transmission medium (e.g., fiber, copper).
物理層媒体依存部は、光ファイバーや銅線などの伝送媒体に依存する部分を扱う。
The physical medium dependent sublayer handles the part that depends on the transmission medium, such as optical fiber or copper wire.
物理層 (physical layer) is the broader OSI layer 1; 物理層媒体依存部 is a specific sublayer within it that deals with the physical medium.
Compound of 物理層 (physical layer), 媒体 (medium), 依存 (dependent), and 部 (part/section), directly translating the English term 'physical medium dependent'.