Siemens SIMATIC NET PROFIBUS - Manual (Page 297)

SIMATIC NET PROFIBUS Plastic Fiber Optic Installation Instructions for Simplex Connectors
Page 7
Separating the SIMATIC NET PLASTIC FIBER OPTIC Duplex Cord
Insert a sharp knife 20 cm (if fitting a plug
adapter 30 cm) from the end of the cable
in the groove between the two cords and
split the cords up to the end of the cable.
Caution: The buffer of the cords must not
be damaged. Caution:
Do not split the cords simply by hand,
since the fibers can easily be bent
beyond the minimum bending radius. Separated duplex cords