Siemens SIMATIC S7-400H System Manual page 353

Cabling
A cable junction is required
between the indoor and
outdoor area
see Figure 18-2
Figure 18-2 Fiber-optic cables, installation using distribution boxes
S7-400H
System Manual, 03/2012, A5E00267695-11
Components required
One distribution/junction box

per branch
Installation and patch cables are
connected via the distribution box.
Either ST or SC plug-in
connections can be used, for
example
Check the cross-over installation
when you wire the CPUs.
18.3 Selecting fiber-optic cables
Specification
Connector type ST or SC, for example, to match

other components
Synchronization modules
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