There are two aspects to preventing mis-insertion: On the one hand, the connector itself is rotated 180 degrees and misaligned, resulting in incorrect signal connection. At this time, you need to pay attention to choosing a connector that prevents mis-insertion as much as possible, or by adjusting the relative position of the connector. Make the assembly unique; on the other hand, in order to reduce the type of materials, several signals use the same connector. At this time, it is possible to plug the A plug into the B socket. At this time, you need to pay attention. If this happens When it will cause serious consequences (not a simple alarm, but destructive), the A and B interfaces must be selected as different types of sockets (for example, A is male and B is female).
reliability
Connectors are used to connect signals, so the connection parts must be reliable (for example, surface contact is better than point contact, pinhole type is better than leaf spring type, etc.).
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