bus D-sub connector, 9-pole, pin allocation: 3, 5, 6, 8; two cable glands M12 (encoding B) of less than 180 ° (axial). Bus system: PROFIBUS DP up to 12 Mbit / s. Terminating resistor M12 via a separate terminal. D-SUB - SUBCON-PLUS-PROFIB / AX / M12. 2902321 - Phoenix Contact.