问题描述：
[多选]
M800两纤双向共享保护，下面那种说法是对的Which of the following statements about the M800 two-fiber bidirectional shared protection are true？（）
A．OPCS单板是无源器件，所以将该板拔掉也一样不影响使用The OPCS is a passive component. Therefore, removing this board does not affect the service.
B．OPCS在正常状态，也就是阻振态时，拔插单板不影响业务When the OPCS is in normal status, that is, in vibration resistance status, removing or inserting the board does not affect the service.
C．OPCS在倒换状态时拔插单板不影响业务When the OPCS is in switchover status, removing or inserting the board does not affect the service.
D．OPCS在倒换状态时拔插单板，影响业务中断When the OPCS is in switchover status, removing or inserting the board will interrupt the service.
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上一篇：对于OP保护，下面说法正确的是Which of the following statements about the OP protection are true？（）
下一篇：在工程中，能实现的OPCS通道保护倒换触发条件是In one engineering， the conditions that trigger the OPCS protection switchover are（）
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