Siemens PANEL PC 877 User Manual

Page of 288
Foreword 
 
2.1 Safety information 
 
SIMATIC Panel PC 877 
2-4
 
Operating instructions, Release 07/2006, A5E00877780-01 
Electrical connection 
 
 
Warning 
Disconnect the device from the mains before every intervention.  
Do not touch power lines or data transmission lines during electrical storms and do not 
connect any cables. 
 
System expansions 
Only install system expansion devices designed for this device. If you install other 
expansions, you may damage the system or violate the safety requirements and regulations 
for radio frequency interference suppression. Contact your technical support team or where 
you purchased your PC to find out which system expansion devices may safely be installed. 
 
 
Caution 
If you install or exchange system expansions and damage your device, the warranty 
becomes void.  
 
High frequency radiation 
 
 
Caution 
Unintentional operating situations 
High frequency radiation, e.g. from cell phones, can cause unintentional operating situations 
under some circumstances. Further information is available in the section "EMC 
requirements" of the "Technical data" chapter.