Cisco Systems PA-POS-1OC3 Manual De Usuario

Follow these basic guidelines when working with any electrical equipment: 

Before beginning any procedures requiring access to the chassis interior, locate the emergency 
power-off switch for the room in which you are working. 

Disconnect all power and external cables before moving a chassis.

Do not work alone if potentially hazardous conditions exist. 

Never assume that power has been disconnected from a circuit; always check. 

Do not perform any action that creates a potential hazard to people or makes the equipment unsafe. 
Carefully examine your work area for possible hazards such as moist floors, ungrounded power 
extension cables, and missing safety grounds.