Table 15-2 Specification Of Fiber-Optic Cables For Indoor Applications - Siemens SIMATIC S7-400H System Manual

Fiber-optic cables with lengths above 10 m usually have to be custom-made. In the first step,
select the following specification:
● Single-mode fiber (mono-mode fiber) 9/125 µ
The table below shows the further specifications, based on your application:
Table 15-2 Specification of fiber-optic cables for indoor applications
Cabling
The entire cabling is routed
within a building
No cable junction is
required between the indoor
and outdoor area
The necessary cable length
is available in one piece.
There is no need to connect
several cable segments by
means of distribution boxes.
Complete installation using
prefabricated patch cables
The entire cabling is routed
within a building
No cable junction is
required between the indoor
and outdoor area
The necessary cable length
is available in one piece.
There is no need to connect
several cable segments by
means of distribution boxes.
Complete installation using
prefabricated patch cables
Installation using distribution
boxes, see Fig. 15-2
S7-400H
System Manual, 09/2007, A5E00267695-03
For short lengths required for testing and commissioning you may also use the lengths up
to 10 m available as accessories. For continuous use, only the specified cables with
monomode fibers are permitted.
Components required
Patch cables
Prefabricated cable
including patch cables for indoor
applications as required
Patch cable for indoor applications
One distribution/junction box per branch
Installation cables and patch cables are
interconnected by means of distribution
box, using either ST or SC connectors for
example. Check the cross-over installation
when you wire the CPUs.
Synchronization modules
15.3 Selecting fiber-optic cables
Specification
2 x duplex cable per system
Connector type LC-LC
Crossed cores
Further specifications you may need to observe
for your plant:
UL certification
Halogen-free materials
Multicore cables, 4 cores per system
Connector type LC-LC
Crossed cores
Further specifications you may need to observe
for your plant:
UL certification
Halogen-free materials
1 cable with 4 cores per fault-tolerant system
Both interfaces in one cable
1 or 2 cables with several shared cores
Separate installation of the interfaces in order
to increase availability (reduction of common
cause factor)
Connector type ST or SC, for example, to match
other components; see below
Further specifications you may need to observe
for your plant:
UL certification
Halogen-free materials
Avoid spliced cables in the field. Use
prefabricated cables with pulling protection/aids
in whiplash or breakout design, including
measuring log.
Connector type LC on ST or SC, for example,
to match other components
Connector type ST or SC, for example, to
match other components
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