SIEMENS
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Siemens IK PI · 2015
PROFIBUS
Optical networks with OLM
Plastic and PCF fiber-optic cable
3
■
Overview
•
Electrical isolation of PROFIBUS devices and PROFIBUS
segments
•
Protection of the transmission path against electromagnetic
interference
•
Up to 80 m cable length with plastic fiber-optic cables and up
to 400 m with PCF fiber-optic cables
•
Rugged fiber-optic standard cables, designed for industrial
applications
•
Extensive approvals (UL)
■
Benefits
•
Plastic and PCF fiber-optic cables can be pre-assembled on
site
•
Time savings when commissioning thanks to pre-assembled
cables
•
Protection of the transmission route against electromagnetic
interference
•
Tap-proof, as the cable does not emit radiation
•
Avoidance of overvoltage and equipotential bonding
problems
■
Application
SIMATIC NET plastic and PCF fiber-optic cables are used to-
gether with OLM/P for establishing optical PROFIBUS networks
or for optical linking of segments using RS 485 technology in
indoor and outdoor applications.
Plastic fiber-optic cables and segmented PCF fiber-optic cables
can be assembled on-site with 2 x 2 BFOC connectors. The
maximum cable length between two OLM/P is 80 m.
Longer cable lengths up to 400 m can be achieved using PCF
fiber-optic cables. These cables are also available preassem-
bled with 4 BFOC connectors.
■
Design
Different types of plastic and PCF fiber-optic cables are offered:
Plastic fiber-optic cables
•
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; cable
lengths up to 80 m.
PCF fiber optic cables
•
PCF fiber-optic cable, standard cables
:
Rugged round cables with violet/green PVC outer sheath and
Kevlar strain relief elements for applications indoor/outdoors;
cable lengths up to 400 m;
the following cable versions are available:
- PCF fiber optic standard cable;
with violet PVC outer sheath for indoor applications.
The cable is not suitable for assembly in the field;
(only available pre-assembled with an insertion tool)
- PCF Standard Cable GP (general purpose);
with green PVC outer sheath for indoor and outdoor
applications.
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; cable lengths
of up to 400 m.
The cables are suitable for assembly in the field.
The following cable versions are available:
- 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
outer sheath
strain relief
using aramide
yarn
PCF fiber
hollow core
support element
fleece wrapping
with strain relief
elements
single core sheath
G_IK10_XX_10031
PCF Trailing Cable
© Siemens AG 2014