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General Safety Precautions and Maintenance Guidelines
This unit is intended for installation in restricted access areas. A restricted access area is where
Warning
access can only be gained by service personnel through the use of a special tool, lock and key, or
other means of security, and is controlled by the authority responsible for the location.
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Warning
To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the
handles on the port adapters; these types of handles are not designed to support the weight of the unit.
Lift the unit only by grasping the chassis underneath its lower edge.
Warning
Never attempt to lift the chassis with the handles on the power supplies or the switching modules.
These handles are not designed to support the weight of the chassis. Using them to lift or support the
chassis can result in severe damage to the equipment and serious bodily injury.
Before opening the chassis, disconnect the telephone-network cables to avoid contact with
Warning
telephone-network voltages.
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
Warning
precautions to ensure that the system remains stable. The following guidelines are provided to ensure
your safety:
—This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
—When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the
heaviest component at the bottom of the rack.
—If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack.
Removing I/O cards, CPU cards, fans, and power supplies can expose you to high-energy
Warning
(high-amperage) circuits and possible ejection of molten metal or to the shock hazard of telephony
circuit voltages. Be sure to remove all rings, watches, and other jewelry from fingers, wrists, and
arms before removing panels and devices.
Use extreme care when removing or installing connectors so that you do not damage them.
Warning
Warning
Use copper conductors only.
General Safety Precautions
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