发明公开
EP0392209A2 Communication system having two data processing units each having function of monitoring the other data processing unit
失效
由两个数据处理单元的通信系统的,在每个单元中的监控功能用于另一数据处理单元。
- 专利标题: Communication system having two data processing units each having function of monitoring the other data processing unit
- 专利标题(中): 由两个数据处理单元的通信系统的,在每个单元中的监控功能用于另一数据处理单元。
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申请号: EP90104921.3申请日: 1990-03-15
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公开(公告)号: EP0392209A2公开(公告)日: 1990-10-17
- 发明人: Sugawara, Eiji
- 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: JP64589/89 19890316
- 主分类号: G06F11/30
- IPC分类号: G06F11/30
摘要:
A communication system includes a first data processing unit (100a), a second data processing unit (100b), and a data link line (13, 116a, 116b) provided between the first data processing unit and the second data processing unit. A first monitor terminal (12a) controls the first data processing unit and monitors the first and second data processing units. A second monitor terminal (12b) controls the second data processing unit and monitors the first and second data processing units. A first switching circuit (30a) is coupled to the first data processing unit, the first monitor terminal and the data link line, and selectively connects two of the first data processing unit, the first monitor terminal and the data link line. A second switching circuit (30b) is coupled to the second data processing unit, the second monitor terminal and the data link line, and selectively connects two of the second data processing unit, the second monitor terminal and the data link line. The first switching circuit has a mode in which the first terminal is connected to the data link line and the second switching circuit has a mode in which the second data processing unit is connected to the data link line so that the first monitor terminal monitors the second data processing unit.
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