ZyXEL ES-3148 Guida Utente

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Chapter 2 Hardware Installation and Connection
ES-3148 User’s Guide
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Do NOT block the ventilation holes. Leave space between devices when 
stacking. For proper ventilation, allow at least 4 inches (10 cm) of clearance at 
the front and 3.4 inches (8 cm) at the back of the Switch. This is especially 
important for enclosed rack installations.
2.2  Mounting the Switch on a Rack 
This section lists the rack mounting requirements and precautions and describes the 
installation steps. 
2.2.1  Rack-mounted Installation Requirements
• Two mounting brackets.
• Eight M3 flat head screws and a #2 Phillips screwdriver.
• Four M5 flat head screws and a #2 Phillips screwdriver. 
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Failure to use the proper screws may damage the unit. 
2.2.1.1  Precautions 
• Make sure the rack will safely support the combined weight of all the equipment it 
contains.
• Make sure the position of the Switch does not make the rack unstable or top-heavy. Take 
all necessary precautions to anchor the rack securely before installing the unit.
2.2.2  Attaching the Mounting Brackets to the Switch
Position a mounting bracket on one side of the Switch, lining up the four screw holes on 
the bracket with the screw holes on the side of the Switch.
Figure 7   Attaching the Mounting Brackets