Siemens SIMATIC NET PROFIBUS Instrukcje Operacyjne Strona 16

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PROFIBUS NETWORKS
1-6
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
Transmission Media
PROFIBUS networks can be implemented with the following:
S Shielded, twisted pair cables (characteristic impedance 150 )
S Shielded, twisted pair cables, intrinsically safe (with PROFIBUS-PA)
S Fiber-optic cables
S Wireless (infrared technology)
The various communication networks can be used independently or if required can
also be combined with each other.
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