... interference, and ensures correct orientation. The part containing pin contacts is called the male connector or plug, while ... the shell size (A=15 pin, B=25 pin, C=37 pin, D=50 pin, E=9 pin), followed by the actual ... positions in place of some of the normal pin positions that could be used for either high-current ... below, the connector on the left is a 9-pin male (DE-9M) connector plug, and the one ...