Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What do P1, P2, and P3 refer to?

April 26, 2017p1 P2 p3 refer

0

Posted

What do P1, P2, and P3 refer to?

1 Answer

0

Posted

P stands for “plug” and in general (although not always) refers to the male connector. In a vertical card arrangement for a CompactPCI type backplane, the male connectors on the backplane and the lower connector is called P1, the next higher P2, and so on. In a vertical card arrangement for a VME type backplane, the male connectors are on the plug-in cards and the upper connector is called J1, the next lower J2, and so forth.