Siemens SIMATIC NET PROFIBUS - Manual (Page 100)

Passive Components for RS-485 Networks
4-2
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
4.1 SIMATIC NET PROFIBUS Cables
PROFIBUS Cables
A variety of SIMATIC NET PROFIBUS cables are available allowing optimum
adaptation to a variety of environments.
All the information about segment lengths and transmission rates refer only to
these cables and can only be guaranteed for these cables.
Notes on Installing RS-485 LAN Cables
LAN cables are impaired by mechanical damage. How to install LAN cables
correctly is described in detail in Appendix C.
To make it easier to measure the length of cables, they have a marker every
meter.
Overview
Table 4-1 is an overview of the LAN cables for PROFIBUS showing their
mechanical and electrical characteristics.
If you require a cable with characteristics that are not covered by the range of
products described here, please contact your local SIEMENS office or
representative (see Appendix I.2).