Plastic Fiber-Optic Cables - Siemens SIMATIC NET PROFIBUS Owner's Manual

7.2

Plastic Fiber-Optic Cables

Plastic Fiber-Optic Cables
Plastic FO cables are used to connect optical link modules with attachments for
plastic FO cables (OLM/P), optical bus terminals (OBT) and devices with an
integrated optical interface. Under certain circumstances, this is a cost-effective
alternative to traditional glass fiber-optic cables.
Properties of Fiber-Optic Cables
Use the Siemens plastic and PCF FO cables with the following properties:
Table 7-1 Properties of Fiber-Optic Cables
Meaning
Standard designation
Uses
Cable length between
S
OLM – OLM
S
Integrated optical
interfaces, OBT
Fiber type
Core diameter
Core material
Cladding outer diameter
Cladding material
Inner jacket
S
Material
S
Color
S
Diameter
Outer jacket
S
Material
S
Color
Number of fibers
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
Passive Components for Electrical Networks
SIMATIC NET PROFIBUS
Plastic Fiber Optic Plastic Fiber Optic,
Duplex Cord
I–VY2P 980/1000 I–VY4Y2P 980/1000
150A
Used indoors in areas Used indoors
where little
mechanical load is
expected, such as in
laboratory setups or
in cubicles
50 m
50 m
980 m
Polymethylmethacrylate (PMMA)
1000 m
fluoridated special polymer
PVC
gray
2.2 " 0.01 mm
–
PCF Fiber Optic,
Standard Cable Standard Cable
I–VY2K 200/230
160A
Used indoors
80 m
50 m
Step index
PA
black and orange (without inner jacket)
2.2 " 0.01 mm
PVC
lilac
2
10A17+8B20
400 m
300 m
200 m
Quartz glass
230 m
–
PVC
lilac
7-3