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Site Requirements
• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension
• Do not work alone if hazardous conditions exist.
• Never assume that power is disconnected from a circuit. Always check.
• Never open the enclosure of the internal power supply.
• If an electrical accident occurs, proceed as follows:
Follow these guidelines when working with any equipment that is disconnected from a power source but is
still connected to telephone wiring or other network cabling:
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is specifically designed for it.
• Never touch uninsulated telephone wires or terminals unless the telephone line is disconnected at the
• Use caution when installing or modifying telephone lines.
• Remove power cables from all installed power supplies before opening the chassis.
Always follow these electrostatic discharge (ESD) prevention procedures when removing and replacing
modules:
• Ensure that the router chassis is electrically connected to ground.
• Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the clip to an
• If no wrist strap is available, ground yourself by touching a metal part of the chassis.
Caution
For the safety of your equipment, periodically check the resistance value of the anti-static strap. It should be
between 1 and 10 megohms (Mohm).
Site Requirements
Follow the general precautions listed below when installing or working with your device:
• Keep your system components away from radiators and heat sources.
• Do not block cooling vents.
Preparing for Installation
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cables, frayed power cords, and missing safety grounds.
• Turn off power to the device.
• Call for help.
• Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate
action.
network interface.
unpainted surface of the chassis frame to channel unwanted ESD voltages safely to ground. To guard
against ESD damage and shocks, the wrist strap and cord must operate effectively.
Preparing for Installation
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