943904321 Hirschmann OZD Profi 12M P12 PRO Interface converter electrical/optical for PROFIBUS-field bus networks repeater function for plastic FO short-haul version; 2 x optical: 4 sockets BFOC 2.5 (STR); 1 x electrical: Sub-D 9-pin, female, pin assignment according to EN 50170 part 1