noun
data concentrator
Technical term in computing and networking for a device that aggregates multiple data streams into one.
データ集線装置は、複数の回線からのデータを一本の高速回線にまとめる。
A data concentrator combines data from multiple lines into a single high-speed line.
Compound of データ (data) + 集線 (line concentration) + 装置 (device). A straightforward technical term.