SIEMENS
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Siemens IK PI · 2015
PROFIBUS
Optical networks with OBT and integrated interface
Plastic and PCF fiber-optic cable
3
■
Overview
•
Electrical isolation of DP devices
•
Protection of the transmission path against electromagnetic
interference
•
Up to 50 m cable length with plastic fiber-optic cables and up
to 300 m with PCF fiber-optic cables
•
Rugged fiber-optic standard cables, designed for industrial
applications
•
Hybrid cable for the shared transmission of data and power
supply
•
Extensive approvals (UL)
■
Benefits
•
Plastic and PCF fiber-optic cables can be pre-assembled on
site
•
Easy connector assembly on site
•
Time savings on start-up thanks to pre-assembled cables
•
Protection of the transmission path against electromagnetic
interference
•
Tap-proof, because the cable does not radiate
•
A cable for the shared transmission of data and power
■
Application
SIMATIC NET plastic and PCF fiber-optic conductors are used to
construct optical indoor PROFIBUS DP networks.
Plastic fiber-optic cables and segmented PCF fiber-optic cables
can be assembled easily on site with 2 x 2 simplex plugs.
The maximum cable length between two DP devices is 50 m.
Longer cable lengths up to 300 m can be achieved using PCF
fiber-optic cables. These cables are also available preassem-
bled with 4 simplex plugs.
Devices with integrated optical interface (Simplex connection
technology) include, for example, OBT, CP 342-5 FO,
CP 5613 FO, IM 153-2 FO, IM 467 FO.
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Design
Different types of plastic and PCF fiber-optic cables are offered:
•
Plastic FOC, duplex core;
Two flat cores with PVC inner sheath and without outer sheath
for indoor applications with low mechanical stress such as
laboratory setups or inside cabinets. Cable lengths up to
50 m.
•
Plastic FOC, standard cable;
Rugged round cable with violet PVC outer sheath and Kevlar
tension components as well as two plastic fibers with a rugged
polyamide inner sheath. For indoor applications with cable
lengths up to 50 m.
•
PCF fiber-optic cable, standard cables:
- PCF Fiber Optic standard cable;
rugged round cable with violet PVC outer sheath and
Kevlar tension components for indoor applications with
cable lengths of up to 300 m.
The cable is not suitable for assembly in the field
(only available pre-assembled with an insertion tool)
- PCF Standard Cable GP (general purpose);
rugged round cable with green PVC outer sheath and
Kevlar tension elements for indoor and outdoor applications
with cable lengths of up to 300 m;
the cable is suitable for assembly in the field.
•
PCF fiber-optic trailing cable;
Rugged round cable with green outer sheath and
Kevlar tension elements for trailing cable applications with
cable lengths of up to 300 m. The cable is suitable for
assembly in the field.
Two cable variants are available for this application:
- PCF Trailing Cable;
cable for high mechanical stress, PUR outer sheath,
no
UL approval
- PCF Trailing Cable GP (general purpose);
cable for low mechanical stress, PVC outer sheath,
with
UL approval
© Siemens AG 2014