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    • 6. 发明申请
    • REDUNDANT SWITCHING ARRANGEMENT
    • 冗余切换安排
    • WO9945688A2
    • 1999-09-10
    • PCT/FI9900175
    • 1999-03-05
    • NOKIA TELECOMMUNICATIONS OYHURTTA ARITUOMINEN ANTTIRUUSKANEN MARKKU
    • HURTTA ARITUOMINEN ANTTIRUUSKANEN MARKKU
    • H04M3/22
    • H04M3/22
    • The invention relates to a redundant switching arrangement using a first and second switching network (SWF_A, SWF_B) or other switching element. The switching elements are used to carry out switching operations in the same way, so that one of the switching elements serves as an active switching element whose switching operations are utilised, while the other switching element serves as a passive switching element backing up the active switching element. To ensure that any faults occurring in the switching elements in such a redundant switching arrangement are detected as quickly as possible, their operation is monitored by comparing the data of the corresponding output channels of the first and second switching elements, and if such a comparison shows that the data contained in any of the corresponding output channels are not identical, an internal test is carried out for at least one of the switching elements to verify the data of the output channel involved. The internal compare test(s) is/are used as a basis for selecting the switching element to continue to serve as the active switching element.
    • 本发明涉及使用第一和第二开关网络(SWF_A,SWF_B)或其他开关元件的冗余开关装置。 开关元件用于以相同的方式执行开关操作,使得其中一个开关元件用作其开关操作被利用的有源开关元件,而另一个开关元件用作无源开关元件,从而支持有源开关 元件。 为了确保尽可能快地检测在这种冗余开关装置中的开关元件中出现的任何故障,通过比较第一和第二开关元件的相应输出通道的数据来监控它们的操作,并且如果这样的比较示出 包含在任何相应输出通道中的数据不相同,则对至少一个开关元件执行内部测试以验证涉及的输出通道的数据。 内部比较测试被用作选择开关元件以继续用作有源开关元件的基础。