Siemens SIMATIC ET 200S Manual page 127

Using the fiber-optic cable again
Note
If you place used fiber-optic cable in the connector adapter, you must shorten both
cores of the fiber-optic cable by the bent lengths and remount the simplex
connectors.
In this manner you avoid possible attenuation losses from parts of the fiber-optic
cable duplex core that have been bent again and highly stressed
Wiring the IM151-1 FO STANDARD interface module
To connect the supply voltage:
1. Strip the insulation from the wires for the supply voltage of the interface module.
2. Tighten the individual wires in the screw-type terminal.
To connect the PROFIBUS-DP:
1. Insert the fiber-optic cable with the mounted connector adapters in the
IM151-1 FO STANDARD.
2. Push up the handle of the connector adapter that is sticking out.
Make sure that you position things correctly: Insert the sending fiber-optic cable in
the receiver socket and the receiving fiber-optic cable in the sender socket of the
fiber-optic cable interface of the IM151-1 FO STANDARD.
If the IM151-1 FO STANDARD is the last node of the fiber-optic cable network, you
must close the unoccupied fiber-optic cable interface with filler plugs (which are in
place when the IM151-1 FO STANDARD is delivered).
ET 200S Distributed I/O System
EWA-4NEB780602402-09
Wiring and Fitting
5-23