... interference, and ensures correct orientation. The part containing pin contacts is called the male connector or plug, ... letter denoting the shell size (A=15 pin, B=25 pin, C=37 pin, D=50 pin, E=9 pin), followed by ... DB25 denotes a D-sub with a 25 position shell size and a 25 position contact configuration. The ... hole that receives the jackscrews on the cable shell, to hold the plug and socket together.We ...