3com 8807 User Manual

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C
HAPTER
 3: I
NSTALLATION
 P
REPARATION
Power Supply 
Requirements
The Switch 8800 Family adopts redundant PSUs for AC PSU:
Rated voltage: 100 VAC to 240 VAC, 50 Hz or 60 Hz
Maximum tolerance: 90 VAC to 264 VAC, 50 Hz or 60 Hz
Maximum power output: 1200 W (Switch 8807)/2000 W (Switch 8810/Switch 
8814) 
Space Requirements
For the sake of adequate ventilation and easy equipment maintenance, you are 
recommended to keep one meter of clearance between the rear/front of the 
switch cabinet and the wall surface or other devices. If the optional cabinet is 
desired, the clear height of the equipment room must be more than 3 meters 
inclusive.
Cabinet-Mounting 
Requirements
Before cabinet-mounting the switch, make sure that the cabinet meets the 
following requirements:
Better mount the switch in an open cabinet. However, if you want to mount it 
in a closed cabinet, make sure of the availability of a good ventilation system.
Make sure that the cabinet stands steadily enough to support the weight of the 
switch and the accessories.
Make sure that the switch fits the cabinet size. Leave some clearance beside 
the left and right panels of the switch for chassis ventilation.
Installation Tools
 The instruments and tools are not shipped with the Switch 8800 Family and it is 
up to the users to ensure their availability.
Table 70   Required installation tools
General 
tools 
Measure and 
 
lineation tools 
Long tape, ruler (1 meter in length), marking pen, powder 
marker, pencil 
Drills 
One percussion drill, several drill bits, one vacuum cleaner 
Fastening tools 
Flat-module screwdriver P4 -- 75 mm
Phillips screwdriver P1 -- 100mm, P2 -- 150mm and P3 -- 
250mm
Socket wrench M5
Box-end wrench M6
Double ring spanner (10-12) or open-end wrench (10-12) 
Small tools 
Sharp-nose pliers, diagonal pliers, vices, hand-held electric 
drill, file, handsaw, crowbar, rubber hammer 
Auxiliary tools 
Brush, tweezers, paper knife, hand bellows, electric iron, 
solder wire, fork, ladder 
Special tools
ESD-preventive wrist strap, cable stripper, crimping pliers, 
RJ-45 crimping pliers, wire punchdown tool 
Meters
Multimeter, 500V Meg-ohmmeter (used for measuring the 
insulation resistance), error detector, optical power meter, 
earth resistance tester