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■ Installing the Main Unit
Places to avoid
•Places exposed to direct sunlight or near a source of
heat such as a radiator
• Very dirty and dusty places
•Places subject to strong vibrations
•Near magnetic field sources such as a television or
speakers
•Near high-voltage cables such as a power cable
•Near noise sources such as fluorescent lamps
•Places where condensation forms easily
• Humid places
•Places where drastic temperature changes occur
•Places which are not level
•Steamy and oily places such as kitchens
Rack Mounting
When mounting this unit, use the following racks.
Standard Rack: WU-RS71 (29 units can be mounted.)
Long Rack: WU-RL76 (41 units can be mounted.)
EIA equivalents (Products of other manufacturers): EIA
19 inch rack, 450 mm {17-7/10"} or more depth
Note: When mounting this unit into a rack of another manu-
facturer, Rack Mounting Screw (W2-MSS/5008) (Option)
or M5 x 12 screws (4 pcs.) are required. If you use the
supplied rack mounting screws (nominal diameter 5
tapping), the screw heads may be damaged.
1. Power off the unit.
2. Remove the rubber feet (4 psc.) on the bottom of the
unit by loosening the screws.
3. Mount the unit into the rack by fixing the rack mounting
screws (locally procured: 8 pcs). (Refer to the following
illustration.)
Important:
• If the rack is subject to vibration, secure the rear of the
unit to the rack by using additional mounting brackets
(locally procured).
• To avoid loosening, secure the mounting screws surely.
•When operating the units, keep the temperature inside
the rack surely below 45 °C {113 °F}.
•Mount the unit into the rack with a space equivalent to
approx. 1 unit (44 mm) or more to separate from other
devices.
•Mounting ventilation fan(s) in the rack is recommended
especially when the rack is covered with front lids.
• To prevent the unit from overheating, do not block the
ventilation openings or slots in the cover
Remove the rubber feet.
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Make a space equivalent to
approx. 1 unit (44 mm) or more
EIA 19 inch rack