Siemens SIMATIC NET PROFIBUS User Manual

Lightning and Surge Voltage Protection for LAN Cables Between Buildings
B-4
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
PLC PLC PLCPLC
Coarse protection at
entry to building
Fine protection
close to
first nodes
Underground cable,
potential equalization
cable
Same protection
for further cable entry
or
exit necessary
Figure B-1 Lightning Protection Concept for LAN Cables Between Buildings

Siemens SIMATIC NET PROFIBUS Specifications

General

Brand	Siemens
Model	SIMATIC NET PROFIBUS
Category	Network Hardware
Language	English