noun
MDF; Main Distribution Frame
Technical term in telecommunications and networking for the central wiring hub that connects external lines to internal equipment.
主配線盤は通信設備の中心的な接続点です。
The MDF is the central connection point of telecommunications equipment.
ビルの主配線盤で回線を各フロアに振り分ける。
Lines are distributed to each floor at the building's main distribution frame.
配線盤 is a general wiring board or patch panel, while 主配線盤 specifically refers to the main distribution frame in a structured cabling system.
Compound of 主 (main) + 配線 (wiring) + 盤 (board/panel). The term is a direct translation of the English 'Main Distribution Frame'.