Installing Fiber-Optic Cables - Siemens SIMATIC S7-1500 System Manual

Wiring
7.9 Connecting interfaces for communication with S7-1500H
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Figure 7-9 Installation through distribution boxes (patch fields)
7.9.1.3

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
Quality assurance on site
Check the following points before laying the fiber-optic cables:
• Has the correct fiber-optic cable been delivered?
• Is there any visible transport damage to the product?
• Have you organized suitable intermediate on-site storage for the fiber-optic cables?
• Does the category of cable match that of the connecting components?
Installing fiber-optic cables
Note the following points when laying fiber-optic cables:
• Fiber-optic cables can be installed in open locations provided you can safely exclude any
damage in those areas (vertical risers, connecting shafts, telecommunications switchboard
rooms, etc.).
• Attach fiber-optic cables to mounting rails, for example cable trays or wire mesh ducts,
using cable ties. Take care not to crush the cables when fastening them. Make sure there
is not too much pressure on the fiber-optic cables.
• Before laying the fiber-optic cables: Deburr the edges of the holes. Round the holes. This
prevents damage to the sheathing when you pull in and fasten the cable.
• The bending radius must not be smaller than the value specified by the manufacturer.
186
H-CPU
Installation cable for outdoor use
Distribution box (patch field)
Splicing of the fiber-optic cables
Patch cable for indoors
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD