3com S330 User Manual

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W
 
ARNING
 
 I
 
NFORMATION
 
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.
 
Servicing
 
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.
 
Rack Mounting
 
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.