Wiring
8.9 Connecting interfaces for communication with S7-1500H
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
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Installation of fiber-optic cables through distribution boxes (patch fields)
If cabling requires a transition from indoor to outdoor, you need to perform installation of the
fiber-optic cables via distribution boxes (patch fields). The distribution boxes (patch fields)
connect the different cables (patch and installation cables) and connector types with one
another. You need a separate distribution box (patch field) for each transition.
connectors, distribution boxes (patch fields) and splicing of fiber-optic
cables is allowed as long as the additional attenuation does not exceed 1 dB.
Installation cable for outdoor use
Distribution box (patch field)
Splicing of the fiber-optic cables
Figure 8-9 Installation through distribution boxes (patch fields)
8.9.1.3 Installing fiber-optic cables
Introduction
Fiber-optic cables may only be laid by trained specialist personnel. Comply with all applicable
regulations and statutory requirements.
In practice, the installation of fiber-optic cables represents the most common cause of errors
and failures. These can be caused by:
• Kinks in the fiber-optic cable due to an insufficient bending radius
• Crushing as a result of excessive force caused by persons treading on the cable, by
pinching, or by other heavy cables
• Overstretching due to high tensile forces
• Damage caused by sharp edges
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