Siemens SIMATIC PCS 7 System Manual page 200

Synchronization modules
12.3 Selecting fiber-optic cables
Cabling
A cable junction is required
between the indoor and out-
door area
see Figure 12-2
Figure 12-2 Fiber-optic cables, installation using distribution boxes
200
Components required
One distribution/junction box
•
per branch
Installation and patch cables are
connected via the distribution box.
Either ST or SC plug-in connec-
tions can be used, for example
Check the cross-over installation
when you wire the CPUs.
Specification
Connector type ST or SC, for example, to match
•
other components
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 09/2014, A5E32631667-AB