Siemens SIMATIC NET PROFIBUS User Manual

7-3

PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000

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.

Use the Siemens plastic and PCF FO cables with the following properties:

Table 7-1

Properties of Fiber-Optic Cables 

Standard designation

I–VY2P 980/1000

150A

I–VY4Y2P 980/1000 

160A

I–VY2K 200/230

10A17+8B20

Uses

Used indoors in areas
where little
mechanical load is
expected, such as in
laboratory setups or
in cubicles

Used indoors

Used indoors

Cable length between

S

OLM – OLM

S

Integrated optical
interfaces, OBT

50 m

50 m

80 m

50 m

400 m

300 m

Fiber type

Step index

Core diameter

980 

µ

m

200 

µ

m

Core material

Polymethylmethacrylate (PMMA)

Quartz glass

Cladding outer diameter

1000 

µ

m

230 

µ

m

Cladding material

fluoridated special polymer

Inner jacket

S

Material

S

Color

S

Diameter

PVC

gray

2.2 

"

 0.01 mm

PA

black and orange

2.2 

"

 0.01 mm

–

(without inner jacket)

Outer jacket

S

Material

S

Color

–

PVC

lilac

PVC

lilac

Number of fibers

2