Simutaneous LUD for 485/140

I saw in some forums that simutaneous LUD of 140 and 485 means denial. Is that in general the case?

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回复:Simutaneous LUD for 485/140 -NSC- 给 NSC 发送悄悄话 (34 bytes) () 10/07/2005 postreply 15:19:32

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