Siemens SIMATIC NET PROFIBUS Owner's Manual page 294

SIMATIC NET PROFIBUS Plastic Fiber Optic
F
Plug adapters are designed for fitting preassembled cords once. If a cord has been inserted and must
be removed again, the bent cord section must not be used again. Cut off the bent cord section and
refit the simplex connector.
Installation Instructions for Simplex Connectors
Page 4