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Passive Components for Optical Networks

5-14

SIMATIC NET Twisted-Pair and Fiber-Optic Networks

C79000-G8976-C125-02

5.2.5 Special Cables

Special Cables

In addition to the SIMATIC NET standard fiber-optic cables described in the

Catalog IK PI, numerous special cables and accessories are also available. Listing

all the versions available is beyond the scope of the catalog and of this manual.

The technical specifications of the SIMATIC NET bus components indicate which

SIMATIC NET fiber-optic cable is the normal connecting cable and which other

fiber types are suitable.

Note

Remember that the distances that can be covered differ if you use fibers with other

core diameters or attenuation characteristics than those listed in the operating

instructions.

Fiber Types

In addition to the standard SIMATIC NET fiber types, the following fiber types are

often used:

S 50µm Fiber

This fiber is used particularly in Europe in Telecom applications instead of the

62.5 µm fiber. The smaller core diameter means that less power can be coupled

into the fiber and reduces the distance that can be covered.

Cable Structures

For special applications, numerous variations in the cable structure are available,

for example:

S Bundled cores (cables with hollow cords capable of accommodating several

fibers)

S Cables with rodent protection for underground installation

S Halogen-free cables, for example for use in underground train systems

S Hybrid cable with fibers and copper conductors in one sheath

S Certified cables, for example for use on ships

Ordering

If you require fiber-optic cables for particular applications, please contact your

Siemens representative (see Appendix LEERER MERKER).

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Siemens SIMATIC NET Instrucciones de operaciones Pagina 114