Dell AC Adapter Safety Operating instructions

Dell AC Adapter Safety Operating instructions
CAUTION: Safety Instructions
Use the following safety guidelines to help ensure your own personal safety and to help
protect your equipment and working environment from potential damage.
NOTE: Additional regulatory information for the equipment addressed by this
document may be found on the Regulatory Compliance website at
NOTE: Additional user information for your equipment (such as storage drives,
PC cards and other peripherals) may be available in the “Manuals” section at
SAFETY: General Safety
CAUTION: The power supplies in your system may produce high voltages
and energy hazards, which can cause bodily harm. Unless you are instructed
otherwise by Dell, only trained service technicians are authorized to
remove the covers and access any of the components inside the system. This
warning applies to Dell™ PowerEdge™ servers and Dell PowerVault™
storage systems.
CAUTION: This system may have more than one power supply cable. To
reduce the risk of electrical shock, a trained service technician may need to
disconnect all power supply cables before servicing the system.
products are not medical devices and are not listed under UL or IEC 60601 (or
equivalent). As a result, they must not be used within 6 feet of a patient or in a
manner that directly or indirectly contacts a patient.
NOTE: Some equipment may be utilized as a stand-alone device or as a rackmounted system component. Confirm in your product documentation whether
your equipment is intended to be rack mounted only. Refer to additional
instructions and safety information for rack mounting within this document.
When setting up the equipment for use:
• Place the equipment on a hard, level surface.
• Do not place your equipment in a closed-in wall unit, or on a soft, fabric surface such as
a bed, sofa, carpet, or a rug.
• Leave 10.2 cm (4 in) minimum of clearance on all vented sides of the equipment to
permit the airflow required for proper ventilation. Restricting airflow can damage the
equipment or cause a fire.
• Ensure that nothing rests on your equipment’s cables and that the cables are not located
where they can be stepped on or tripped over.
• Keep your equipment away from radiators and heat sources.
• Keep your equipment away from extremely hot or cold temperatures to ensure that it is
used within the specified operating range.
• Do not stack equipment or place equipment so close together that it is subject to recirculated or preheated air.
• Move equipment with care; ensure that all casters and/or stabilizers are firmly
connected to the system. Avoid sudden stops and uneven surfaces.
The following statement applies only to rack-installed PowerEdge and PowerVault
products that are GS-Marked: This equipment is not intended for use at workplaces with
visual display units, in accordance with §2 of the German ordinance for workplaces with
visual display units.
NOTE: Review the weight limits referenced in your equipment documentation
before placing a monitor or other device on top of your equipment.
NOTICE: To help avoid damaging your equipment, be sure the voltage selection
switch (if provided) on the power supply is set for the voltage that most closely
matches the AC power available in your location. Also be sure that your
monitor and attached devices are electrically rated to operate with the power
available in your location.
WARNING: To prevent the spread of fire, keep candles or other
open flames away from this product at all times.
When operating your equipment:
CAUTION: Do not operate your equipment with any cover(s) (including
computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.
• Use the product only with approved equipment.
• Operate the equipment only from the type of external power source indicated on the
electrical ratings label. If you are not sure of the type of power source required, consult
your service provider or local power company.
• Do not operate the equipment within a separate enclosure unless adequate intake and
exhaust ventilation are provided on the enclosure that adhere to the guidelines listed
• Do not restrict airflow into the equipment by blocking any vents or air intakes.
• Avoid placing loose papers underneath your equipment.
• Do not push any objects into the air vents or openings of your equipment. Doing so can
cause fire or electric shock by shorting out interior components.
• Do not use your equipment in a wet environment, for example, near a bath tub, sink, or
swimming pool or in a wet basement.
• Use only approved power cable(s). If you have not been provided with a power cable
for the equipment or for any AC-powered option intended for the equipment, purchase a
power cable that is approved for use in your country. The power cable must be rated for
the equipment and for the voltage and current marked on the equipment’s electrical
ratings label. The voltage and current rating of the cable should be greater than the ratings
marked on the equipment.
• To help prevent electric shock, plug the equipment and peripheral power cables into
properly grounded electrical outlets. These cables are equipped with three-prong plugs to
help ensure proper grounding. Do not use adapter plugs or remove the grounding prong
from a cable. If you must use an extension cable, use a 3-wire cable with properly
grounded plugs.
• Observe extension cable and power strip ratings. Ensure that the total ampere rating of
all equipment plugged into the extension cable or power strip does not exceed 80 percent
of the ampere ratings limit for the extension cable or power strip.
• To help protect your equipment from sudden, transient increases and decreases in
electrical power, use a surge suppressor, line conditioner, or uninterruptible power supply
• Position equipment cables and power cables carefully; route cables so that they cannot
be stepped on or tripped over. Be sure that nothing rests on any cables.
• Do not modify power cables or plugs. Consult a licensed electrician or your power
company for site modifications. Always follow your local/national wiring rules.
• When connecting or disconnecting power to hot-pluggable power supplies observe the
following guidelines:
Install the power supply before connecting the power cable to the power
Unplug the power cable before removing the power supply.
If the equipment has multiple sources of power, disconnect power from
the system by unplugging all power cables from the power supplies.
• Do not use AC powered equipment during an electrical storm. Battery powered devices
may be used if all cables have been disconnected.
• Before you clean your equipment, disconnect it from the electrical outlet. Clean your
equipment with a soft cloth dampened with water. Do not use liquids or aerosol cleaners,
which may contain flammable substances.
• Clean the air vents on the front, back, and sides of the system with a clean, damp cloth.
Lint, dust and other foreign materials can block the vents and restrict the airflow.
• Do not spill food or liquids on equipment components, and never operate the equipment
in a wet environment. If the system gets wet, see “SAFETY: If Your System Gets Wet.”
• If any of the following conditions occur, unplug the equipment from the electrical outlet
and replace the part or contact your trained service provider:
The power cable, extension cable, or plug is damaged.
An object has fallen into the equipment.
The equipment has been exposed to water.
The equipment has been dropped or damaged.
The equipment does not operate correctly when you follow the operating
CAUTION: Incorrectly installing or using an incompatible battery may
increase the risk of fire or explosion. Replace the battery only with the same
or equivalent type recommended by the manufacturer, carefully following
installation instructions. Dispose of used batteries properly (see “SAFETY:
Battery Disposal”).
• Handle batteries carefully. Do not disassemble, crush or puncture batteries. Do not
short external contacts, dispose of batteries in fire or water, or expose batteries to
temperatures higher than 60 degrees Celsius (140 degrees Fahrenheit). Do not attempt to
open or service batteries. Replace batteries only with batteries designated for the
SAFETY: Modems, Telecommunications, or Local Area
Network Options
If your system includes a modem, the cable used with the modem should be
manufactured with a minimum wire size of 26 American wire gauge (AWG) and an
FCC-compliant RJ-11 modular plug.
• Do not connect or use a modem during a lightning storm. There may be a risk of
electrical shock from lightning.
• Never connect or use a modem in a wet environment.
• Do not plug a modem or telephone cable into the network interface controller (NIC)
• Disconnect the modem cable before opening an equipment enclosure, touching or
installing internal components, or touching an uninsulated modem cable or jack.
SAFETY: Equipment with Laser Devices
CAUTION: Except as expressly instructed otherwise in Dell documentation,
only trained service technicians are authorized to remove the system cover
and access any of the components inside the system.
• This equipment may contain Optical Disk Drives (ODD), such as a CD-ROM, CDR/W,
DVD drive, etc., which have built-in laser devices. To prevent any risk of exposure to
laser radiation, do not disable or open any ODD assembly for any reason.
• This equipment may contain a Host Bus Adapter (HBA) which may have a built-in laser
• These ODDs and HBAs comply with safety requirements and are classified as Class 1
Laser Products, under the US DHHS Standard and IEC/EN60825-1 Laser Safety
Standard. These ODD devices do not contain adjustments or any user serviceable or
replaceable parts.
SAFETY: When Working Inside Your Equipment
Do not attempt to service the equipment yourself, except as explained in your Dell
documentation or in instructions otherwise provided to you by Dell. Always follow
installation and service instructions closely.
CAUTION: Opening or removing covers that are marked with the triangular
symbol with a lightning bolt may expose you to risk of electrical shock.
Components inside these compartments should be serviced only by a
trained service technician.
• Allow the equipment to cool before removing covers or touching internal components.
PC Cards may become very warm during normal operation. Use care when removing PC
Cards after their continuous operation.
CAUTION: The memory modules can become extremely hot during
operation. Allow the modules sufficient time to cool before handling.
• To help avoid possible damage to the system board, wait 5 seconds after turning off the
equipment before removing a component from the system board or disconnecting a
peripheral device from the equipment.
• To help avoid the potential hazard of electric shock, do not connect or disconnect any
cables or perform maintenance or reconfiguration of your equipment during an electrical
SAFETY: If Your Equipment Gets Wet
CAUTION: Before you begin any of the procedures in this section, see
“SAFETY: General Safety.”
CAUTION: Perform this procedure only after you are certain that it is safe
to do so. If the computer is connected to an electrical outlet, if possible,
turn off the AC power at the circuit breaker (if possible) before attempting to
remove the power cables from the electrical outlet. Use the utmost caution
when removing wet cables from a live power source.
Disconnect the monitor, computer or AC adapter from the electrical outlet. If
provided with an AC adapter, disconnect the AC adapter from the equipment.
Turn off any attached external devices, disconnect them from their power sources,
and then disconnect from the equipment.
Contact Dell support (see your product user documentation for the appropriate
contact information).
NOTE: See “Limited Warranties and Return Policy” or the separate warranty
document that shipped with your monitor or computer for information on your
warranty coverage.
SAFETY: Rack Mounting of System Components
Observe the following precautions for rack stability and safety. Also refer to the rack
installation documentation accompanying the equipment and the rack for specific caution
statements and procedures.
NOTE: Your equipment is safety certified as a free-standing unit or as rackmounted component for use in a Dell rack cabinet using the customer rack
kit. Systems are considered to be components in a rack; thus, “component” refers
to any system as well as to various peripherals or supporting hardware.
The installation of your equipment and rack kit in any other rack cabinet has not been
approved by any safety agencies. It is your responsibility to ensure that the final
combination of equipment and rack complies with all applicable safety standards and
local electric code requirements. Dell disclaims all liability and warranties in connection
with such combinations.
System rack kits are intended to be installed in a rack by trained service technicians.
Installing System Components in Your Rack
CAUTION: Before installing systems in a rack, install front and side
stabilizers on stand-alone racks or the front stabilizer on racks joined to
other racks. Failure to install stabilizers accordingly before installing systems
in a rack could cause the rack to tip over, potentially resulting in bodily
injury under certain circumstances.
Therefore, always install the
stabilizer(s) before installing components in the rack.
• Always load the rack from the bottom up, and load the heaviest item in the rack first.
• Make sure that the rack is level and stable before extending a component from the rack.
• Use caution when pressing the component rail release latches and sliding a component
into or out of a rack. The slide rails can pinch your fingers.
• After a component is inserted into the rack, carefully extend the rail into a locking
position, and then slide the component into the rack.
• Do not overload the AC supply branch circuit that provides power to the rack. The total
rack load should not exceed 80 percent of the branch circuit rating.
• Ensure that proper airflow is provided to components in the rack.
• Do not step on or stand on any component when servicing other components in a rack.
Working on Your Rack or Your Rack-Mounted Components
CAUTION: Do not move racks by yourself. Due to the height and weight of
the rack, a minimum of two people should perform this task.
• Before working on the rack, ensure that the stabilizers are secured to the rack, extended
to the floor, and that the full weight of the rack rests on the floor. Install front and side
stabilizers on a single rack or front stabilizers for joined multiple racks before working on
the rack.
• After installing equipment/components in a rack, never pull more than one component
out of the rack on its slide assemblies at one time.
• The weight of more than one extended component could cause the rack to tip over and
may result in serious injury.
SAFETY: Equipment Using -48V DC Power Supplies
Systems using -48V DC Power Supplies are intended for restricted access locations
(dedicated equipment rooms, equipment closet, or the like) in accordance with Articles
110-5, 110-6, 110-11, 110-14, and 110-17 of the National Electrical Code, American
National Standards Institute (ANSI)/National Fire Protection Association (NFPA) 70.
• Connect the equipment to a 48-V direct current (DC) supply source that is electrically
isolated from the AC source. The 48VDC source is to be reliably connected to earth.
CAUTION: A qualified electrician must perform all connections to DC
power and to safety grounds. All electrical wiring must comply with
applicable local or national codes and practices.
CAUTION: Before connecting safety ground or power cables to the
connector, ensure that the power is removed from the DC circuit. To ensure
that the power is off, locate the circuit breaker on the DC source circuit
(usually at the power distribution of the battery distribution fuse bay).
Switch the circuit breaker to the off position and, if available, install an
approved safety locking device on the circuit breaker or switch.
CAUTION: While grounding techniques may vary, a positive connection to a
safety (earth) ground is a requirement.
CAUTION: When installing the unit, the ground connection must always
be made first and disconnected last to prevent an energy hazard.
CAUTION: Never defeat the ground conductor or operate the equipment in
the absence of a suitably installed ground conductor.
Contact the
appropriate electrical inspection authority or an electrician if you are
uncertain that suitable grounding is available.
CAUTION: The system chassis must be securely grounded to the rack
cabinet frame. Do not attempt to connect power to the system until
grounding cables are connected. Completed power and safety ground wiring
must be inspected by a qualified electrical inspector. An energy hazard will
exist if the safety ground cable is omitted or disconnected.
• Wire the unit with copper wire only, and unless otherwise specified, use 14 American
Wire Gauge (AWG) wire, and protect it with a 7.2-ampere (A) minimum to a 20-A
maximum protective device or a 25-A maximum protective device when used with 90ºC
CAUTION: When stranded wiring is required, use approved wiring
termination, such as closed-loop or spade- type with upturned lugs. These
terminations should be the appropriate size for the wires and must be
double crimped, one on the conductor and one on the insulation.
Protecting Against Electrostatic Discharge
CAUTION: Disconnect product from mains power source in accordance with
product-specific safety information located on the “Safety Information”
section of this website.
Electrostatic discharge (ESD) events can harm electronic components inside your
computer. Under certain conditions, ESD may build up on your body or an object, such
as a peripheral, and then discharge into another object, such as your computer. To prevent
ESD damage, you should discharge static electricity from your body before you interact
with any of your computer’s internal electronic components, such as a memory module.
You can protect against ESD and discharge static electricity from your body by touching
a metal grounded object (such as an unpainted metal surface on your computer’s I/O
panel) before you interact with anything electronic. When connecting a peripheral
(including handheld digital assistants) to your computer, you should always ground both
yourself and the peripheral before connecting it to the computer. In addition, as you work
inside the computer, periodically touch a metal-grounded object to remove any static
charge your body may have accumulated.
You can also take the following steps to prevent damage from electrostatic discharge:
When unpacking a static-sensitive component from its shipping carton, do not
remove the component from the antistatic packing material until you are ready to
install the component. Just before unwrapping the antistatic package, be sure to
discharge static electricity from your body.
When transporting a sensitive component, first place it in an antistatic container
or packaging.
Handle all electrostatic sensitive components in a static-safe area. If possible, use
antistatic floor pads and work bench pads.
SAFETY: Battery Disposal
Your system may use a nickel-metal hydride (NiMH), lithium coin-cell, and/or a
lithium-ion battery. The NiMH, lithium coin-cell, and lithium-ion batteries are
long-life batteries, and it is very possible that you will never need to replace
them. However, should you need to replace them, refer to your system
documentation for instructions.
Do not dispose of the battery along with household waste. Contact your local
waste disposal agency for the address of the nearest battery deposit site.
NOTE: Your system may also include circuit cards or other components that
contain batteries. These batteries must also be disposed of in a battery deposit site.
For information about such batteries, refer to the documentation for the specific
card or component.
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