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请教lightcrafter300的Trigger input and output接口线序的问题



型号:DLP® LightCrafter™ Evaluation Module

DMD型号:0.3 inch WVGA

问题:图中1所示的trigger input  and output接口,有4跟引脚,我现在需要使用这个接口,但是不清楚线序是什么,能告诉4根线分别要接什么吗?

user's guide 里面也没有具体说明