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Servicing
Rack Mounting
W
I
ARNING
This section contains warning information for AC-powered systems.
CAUTION: Use of controls or adjustments of performance or procedures other
than those specified herein may result in hazardous radiation exposure.
CAUTION: Danger of explosion if battery is incorrectly replaced. Replace the
battery with only the same or equivalent type as that recommended by the
manufacturer. Dispose of used batteries according to the manufacturer's
instructions.
Service of this unit is to be performed by qualified service personnel only.
Service of certain components and subassemblies in this equipment is
accomplished by the replacement of Field Replaceable Units (FRUs). However,
safety agency approval requires that the servicing of other subassemblies within
this product be referred to 3Com's service personnel.
The trim enclosure and other mechanically secured plates serve as protection
barriers from potential hazardous internal areas. No attempt should be made to
troubleshoot internal components with these protective barriers removed without
first disconnecting the equipment from main power.
This equipment is for use only in complete equipment where the acceptability of
the combination is determined by the applicable safety agency in the country in
which it is installed. This includes UL in the U.S.A., CSA in Canada, and TUV in
Europe.
CAUTION: Do not block the ventilation openings on the top and bottom of the
unit during installation. A minimum of 1 rack unit (1.75") space is required.
Rack configurations with certain combinations of 3Com equipment installed in
racks with a height greater than 50" (127 cm) may require a counter-balance
weight, a stabilizer bar, or anti-tip legs to ensure rack stability in accordance with
safety agency regulations.
CAUTION: When attaching the rack-mount ears, you must use the
factory-supplied screws. Using screws other than those supplied with the
rack-mount ears voids your warranty and could damage the PCB.
NFORMATION
Servicing
xi
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