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Symbols on equipment
These symbols may be located on equipment in areas where hazardous conditions may exist.
WARNING! This symbol, in conjunction with any of the following symbols, indicates the presence of a
potential hazard. The potential for injury exists if warnings are not observed. Consult your documentation for
specific details.
This symbol indicates the presence of hazardous energy circuits or electric shock hazards. Refer all
servicing to qualified personnel.
WARNING! To reduce the risk of injury from electric shock hazards, do not open this enclosure. Refer
all maintenance, upgrades, and servicing to qualified personnel.
This symbol indicates the presence of electric shock hazards. The area contains no user or field
serviceable parts. Do not open for any reason.
WARNING! To reduce the risk of injury from electric shock hazards, do not open this enclosure.
This symbol on an RJ-45 receptacle indicates a network interface connection.
WARNING! To reduce the risk of electric shock, fire, or damage to the equipment, do not plug
telephone or telecommunications connectors into this receptacle.
This symbol indicates the presence of a hot surface or hot component. If this surface is contacted, the
potential for injury exists.
WARNING! To reduce the risk of injury from a hot component, allow the surface to cool before
touching.
These symbols, on power supplies or systems, indicate that the equipment is supplied by
multiple sources of power.
WARNING! To reduce the risk of injury from electric shock, remove all power cords to
completely disconnect power from the system.
Weight in kg
Weight in lbs
This symbol indicates that the component exceeds the recommended weight for one individual to
handle safely.
WARNING! To reduce the risk of personal injury or damage to the equipment, observe local
occupational health and safety requirements and guidelines for manual material handling.
Pre-installation instructions
Perform the steps below before you open the server or before you remove or replace any component:
WARNING! Failure to properly turn off the server before you open it or before you start installing/removing
components may cause serious damage as well as bodily harm.
1. Turn off the server and all the peripherals connected to it.
Refer to the Powering down the server section in this chapter for detailed instructions on how to completely
power down the server.
2. Unplug all cables from power outlets to avoid exposure to high energy levels that may cause burns if parts
are short-circuited by metal objects such as tools or jewelry. If necessary, label each cable for reassembly.
3. Disconnect telecommunication cables to avoid exposure to shock hazard from ringing voltages.
4. Open the server according to the instructions described in the System covers section in this chapter.
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