3com PSE2500-A3 Benutzerhandbuch

User Manual 
PSE2500-A3 External PoE
Power System 

Chapter 3  Safety

 

3-2 

assure rating of equipment no to exceed 80% of the value of 

the breaker chosen.  

The symbols may sometimes be accompanied by some types of 

statement, for example “Hazardous voltage/energy inside”, “Risk of 

injury”. “This device must be accessed only by qualified personnel.” 

 

This symbol identifies the need to refer to 
the equipment instructions for important 
information. 

 

This symbol is used to identify the 
protective safety earth ground for the 
equipment. 

 

This symbol is used to identify other 
bonding points within the equipment. 

 

This symbol is used to identify the 
presence of hazardous ac or dc 
voltages.It may also be used to warn of 
hazardous energy levels 

 

  Note: 

These symbols are used to identify the presence of hazardous AC/DC 

main voltage and also can be used to alarm the level of danger.