发明公开
- 专利标题： Supervisory system for a primary group digital transmission line
- 专利标题（中）： 监测系统的数字传输链路用于主基。
-
申请号： EP88102447.5申请日： 1988-02-19
-
公开(公告)号： EP0279452A2公开(公告)日： 1988-08-24
- 发明人: Nakama, Noboru , Motoori, Hideyuki , Suzuki, Atsushi , Sugawara, Eiji , Kato, Naoyuki
- 申请人： FUJITSU LIMITED
- 申请人地址： 1015, Kamikodanaka, Nakahara-ku Kawasaki-shi, Kanagawa 211 JP
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 当前专利权人地址： 1015, Kamikodanaka, Nakahara-ku Kawasaki-shi, Kanagawa 211 JP
- 代理机构： Lehn, Werner, Dipl.-Ing.
- 优先权： JP38916/87 19870220; JP118134/87 19870515
- 主分类号： H04B17/02
- IPC分类号： H04B17/02
摘要：
A supervisory system for a primary group digital transmission line wherein a terminal repeater (LTE0) transmits, over a supervisory line (L), address information designating an intermediate repeater (REP0,1,2,--) and line within the intermediate repeater to be monitored while the line is in a normal, in-service condition. The terminal repeater (LTE0) and intermediate repeaters (REP0,1,2,--) are cascaded connected by way of the supervisory line (L). The terminal repeater (LTE0) and each of the intermediate repeaters (REP0,1,2,--) include amplifiers (T₁,T₂--,R₁,R₂,--) that receive and send information along the transmission line, and have a monitor output. The monitor output is processed by an error monitor (EM) within the terminal repeater (LTE0) and in each of the intermediate repeaters (REP0,1,2,--) and the results of the error monitoring provided to the supervisory line in response to polling by the terminal repeater (LTE0).
公开/授权文献
信息查询
