3com PSE2500-A3 Benutzerhandbuch

User Manual 
PSE2500-A3 External PoE
Power System 

Chapter 3  Safety

 

3-3 

When working on this type of equipment, the following 

precautions must be noted: 

z 

This unit must be installed, serviced, and operated only by 

skilled and qualified personnel who have the necessary 

knowledge and practical experience with electrical 

equipment and who understand the hazards that can arise 

when working on this equipment. 

z 

The PSE2500-A3 system can be powered by multiple AC 

inputs. Ensure that the appropriate circuit protection device 

for each AC input being serviced is disconnected before 

servicing the equipment. 

z 

High leakage currents may be possible on this type of 

equipment. Make sure the equipment is properly earth 

grounded before connecting power. 

z 

Hazardous energy and voltages are present in the device 

and on the interface cables that can shock or cause serious 

injury. Follow all safety warnings and practices when 

servicing this equipment. 

z 

Exercise care when servicing this area. 

In addition to proper job training and safety procedures, the 

following are some basic precautions that should always be used: 

z 

Use only properly insulated tools. 

z 

Remove all metallic objects (key chains, glasses, rings, 

watches, or jewelry, and so on). 

z 

Wear safety glasses. 

z 

Test circuits before touching.