Noun
D-sub (plural D-subs)
(electronics) an electrical connector with two or more rows of pins or sockets surrounded by a D-shaped metal shield
Automation industry In the automation industry, a terminal adapter is a passive device that converts a connector like the 8P8C (RJ-45) modular connector or 9 pin D-Sub into a terminal block to facilitate wiring. Source: Internet
As the complete IO interface including power supply and the canal inputs are packed into 15 Pin D-Sub Connector, I would like to send the signals directly from the encoder itself. Source: Internet
D-sub connectors follow another rule for pin assignment. Source: Internet