公开(公告)号：EP1220483A4

公开(公告)日：2005-09-07

申请号：EP00948348

申请日：2000-07-31

申请人： MITSUBISHI ELECTRIC CORP ,  KDD SUBMARINE CABLE SYS INC

发明人： YAMANAKA SHIGEO ,  MIZUOCHI TAKASHI ,  SHIMIZU KATSUHIRO ,  GOTO KOJI ,  NAKAGAWA SHINICHI ,  SHIBANO EIICHI ,  YASUDA TADAMI

IPC分类号： G02B6/26 ,  G02B6/34 ,  H04B10/50 ,  H04J14/02 ,  G02B6/12 ,  H04B10/155 ,  H04B10/18

CPC分类号： H04B10/50 ,  G02B6/266 ,  G02B6/29376 ,  H04J14/02 ,  H04J14/0221

摘要： A transmitter/receiver comprises a master rack (20, 200) and slave racks (30, 300) that can be coupled to the master rack. In the initial operation, the master rack handles a predetermined number of light-wave signals. As the demand for light-wave signals increases, slave racks are accordingly coupled without interrupting the initial operation.