There is disclosed a transmission line switching apparatus comprising a coupling board having a first surface adapted to be connected a first line and a second surface adapted to be connected a second line, adjusting means having a line length adjusting unit for handling surplus portions of the second lines and switching means for changing the connection between the first and second lines, and partition means for dividing the second surface of the coupling board into a plural rows.
申请公布号
US5581644(A)
申请公布日期
1996.12.03
申请号
US19940355246
申请日期
1994.12.08
申请人
SUMITOMO ELECTRIC INDUSTRIES, LTD.;NIPPON TELEGRAPH & TELEPHONE CORPORATION