发明授权
US4695997A Device for performing wrap tests on a multiplex link in a data
communication system
失效
用于在数据通信系统中的多路复用链路上进行包装测试的设备
- 专利标题： Device for performing wrap tests on a multiplex link in a data communication system
- 专利标题（中）： 用于在数据通信系统中的多路复用链路上进行包装测试的设备
-
申请号： US744704申请日： 1985-06-14
-
公开(公告)号： US4695997A公开(公告)日： 1987-09-22
- 发明人: Gerard M. Montanari , Francis E. Baudelot , Michel L. Costes
- 申请人： Gerard M. Montanari , Francis E. Baudelot , Michel L. Costes
- 申请人地址： NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： NY Armonk
- 优先权： EPX84430023.6 19840629
- 主分类号： H04L1/00
- IPC分类号： H04L1/00 ; H04J3/14 ; H04L29/14 ; H04J1/16 ; H04M1/24
摘要：
In a data communication system, a device for performing a wrap test on at least one line without affecting the other lines that transmit and receive data over at least one multiplex link (4) within time slots allocated to a given line within a given frame. During each time slot, a wrap control bit (W) is set by the communication system to a state that indicates either the wrap test mode or the normal mode of operation. Said bit controls a logic circuit (51) to cause data to be sent either over line (4) or to the receive circuit to perform the test, within each time slot.
公开/授权文献
信息查询
