公开(公告)号：US5103473A

公开(公告)日：1992-04-07

申请号：US679925

申请日：1991-04-03

申请人： Leslie A. Sullins ,  Michael D. Horton ,  Ben A. Pierce

发明人： Leslie A. Sullins ,  Michael D. Horton ,  Ben A. Pierce

IPC分类号： H04M3/30

CPC分类号： H04M3/30

摘要： A data communication and sleeve lead control apparatus provides auxilary signalling between a no-test trunk control unit, and another unit such as a pair gain unit which is coupled with the link between the control unit and the no-test trunk, while maintaining stability of the sleeve lead monitored by the no-test trunk. The appearance is installed within the pair gain unit, and effectively isolates the sleeve lead to the no-test trunk from sleeve lead to the no-test trunk control unit, so that the data communications between the control unit and the pair gain unit are transparent to the no-test trunk. During a prescribed sleeve lead current flow state, e.g. high resistance or low current flow, controlled interruption of sleeve lead current between the control unit and the pair gain unit effectively modulates the state of the sleeve lead therebetween, but does not change the intended current flow state applied by way of the sleeve lead output port to the no-test trunk.

摘要翻译： 数据通信和套管引导控制装置在无测试中继控制单元和与控制单元与非测试中继线之间的链路耦合的诸如对增益单元的另一单元之间提供辅助信令，同时保持 袖带导线由无测试主干监控。 外观安装在配对增益单元内，有效地将套管引线与套管引线的无测试中断隔离到无测试中继控制单元，使控制单元与成对增益单元之间的数据通信透明 到无测试中继线。 在规定的套筒引线电流流动状态期间，例如， 高电阻或低电流流动，控制单元和对增益单元之间的套管引线电流的受控中断有效地调节其间的套管引线的状态，但不改变通过套筒引线输出端口施加的预期电流流动状态 到无测试中继线。