Siemens SIMATIC ET 200S Manual page 150

Wiring and Fitting
Installing simplex connector
Note
The fiber-optic duplex line cable have the following maximum lengths:
PROFIBUS Plastic Fiber Optic Standard Cable
•
PROFIBUS PCF Fiber Optic Standard Cable
•
1. Remove about 30 cm of the cladding of the fiber-optic duplex cable.
2. Attach the Simplex plugs to the fiber-optic duplex cable.
For detailed assembly instructions for the Simplex plugs see the "SIMATIC NET
PROFIBUS Networks" manual
Tip: Do not simply attach the two Simplex plugs together, but connect them to
form a duplex plug. In this manner you will achieve a better hold in the
connector adapter.
IMPORTANT: The cut and polished surface of the plastic fiber must be
absolutely smooth and flat. The plastic cladding also must not stick out or be
separated roughly. Each deviation causes strong attenuation of the light signal
over the fiber-optic cable.
3. Put the simplex connector in the plug-in adapter for the IM151-1 FO
STANDARD and the fiber-optic cable in the appropriate cable ducts. Snap the
connector adapter closed so that you can hear clearly that the side units have
made contact with each other.
When inserting the plugs into the plug adaptor make sure that they are in the
correct position: sender always up and receiver always down.
Fiber optic duplex
line
5-22
Snap the two simplex connectors
together such that you get a "duplex
connector."
Tip: Cut the lower cable about 10 mm shorter
than the upper cable so that you achieve
better arrangement for the wires.
Maximum 30 mm bending radius
50 m
300 m
Connector
adapter for the
IM151-1 FO
STANDARD
ET 200S Distributed I/O System
EWA-4NEB 780602402-12