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December 20, 2004 About This Manual
LTPH-UM-1261-01 xi
EU COMPLIANCE
The product complies with the requirements of the Low Voltage Directive 73/23/EEC, EMC Directive 89/336/EEC,
and the R&TTE Directive 1999/5/EC Articles 3.1a and 3.1b.
SAFETY GUIDELINES
The following safety guidelines are presented to help you avoid injury to yourself and avoid damage to the
equipment. These guidelines are recommended when working with any equipment that connects to electrical power
or telco wiring.
• Locate the emergency power-off switch for the area in which you are working before beginning any proce-
dures requiring access to the telco-style equipment rack. Then, if an electrical accident occurs, you can
quickly shut off the power.
• Disconnect all power before doing the following:
– Installing or removing the shelf
– Working near power supplies
• Never work alone if potentially hazardous conditions exist.
• Never assume that power has been disconnected from a circuit; always check.
• Never 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.
• Keep the work area free of obstructions before, during, and after shelf installation.
• If an electrical accident occurs, proceed as follows:
– Use caution; do not become a victim yourself.
– Turn power off to the telco-style rack that the shelf is located in.
– If possible, send another person to get medical aid. Otherwise, determine the condition of the victim and
then call for help.
– Determine if the victim needs rescue breathing or external cardiac compressions; then take appropriate
action.
• Circuit Overloading - Consideration should be given to the connection of the equipment to the supply circuit
and the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appro-
priate consideration of equipment nameplate ratings should be used when addressing this concern.
• Reliable Earthing - Reliable earthing of rack-mounted equipment should be maintained. Particular attention
should be given to supply connections other than direct connections to the branch circuit (e.g., use of power
strips).
• The following precautions may appear in this manual in procedures that, if performed incorrectly, may harm
you or your equipment.
CAUTION
Alerts you to possible data loss, service-affecting procedures, or other similar type
problems
WARNING
Alerts you that failure to take or avoid a specific action might result in hardware damage or
loss of service
DANGER
Alerts you that failure to take or avoid a specific action might result in personal harm
Reader Alert Meaning