Siemens SIMATIC NET PROFIBUS - Manual (Page 209)

Passive Components for Electrical Networks
7-13
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
7.3 Glass Fiber-Optic Cables
Designed for Industry
SIMATIC NET glass fiber-optic cables (FO) are available in various designs
allowing optimum adaptation to a wide range of applications.
Uses
Fiber-optic standard cable
S
Universal cable for use indoors and outdoors
INDOOR fiber-optic cable
S
Free of halogens, can be walked on, and extremely flame-retardant FO cable
for use in buildings
Flexible fiber-optic trailing cable
S Specially designed for non-stationary use, for example with moving machinery
SIENOPYR duplex marine fiber-optic cable
S Hybrid cable consisting of two fibers and two additional copper wires
for fixed installation on ships and offshore facilities
SIMATIC NET Standard Fibers
In glass fiber-optic cables, SIMATIC NET uses a fiber with 62.5
µ
m diameter as its
standard fiber. SIMATIC NET bus components are ideally matched to these
standard fibers allowing large distances to be covered while keeping the
configuration rules simple.
Simple Configuration
All the descriptions and operating instructions for SIMATIC NET bus components
contain information about the distances that can be covered with the standard
fibers described above. You can configure your optical network without
complicated calculations using simple limit values (refer to Chapter 3 “Network
Configuration”.
Guidelines for Laying Cables
You will find information about laying SIMATIC NET glass fiber-optic cables in
Appendix C in this manual.