3com 4005 Instruccion De Instalación
Preinstallation Guidelines
23
Rack Installation
Guidelines
Review the following guidelines before you install the chassis in a rack to ensure
your safety and the optimal performance of the Switch 4005:
your safety and the optimal performance of the Switch 4005:
WARNING: To ensure mechanical stability and to avoid circuit overloading and
improper grounding, follow the rack manufacturer’s instructions for rack
installation. If the instructions are unclear, consult a qualified electrician.
improper grounding, follow the rack manufacturer’s instructions for rack
installation. If the instructions are unclear, consult a qualified electrician.
■
Clip nuts are not included in the Switch 4005 chassis hardware kit. Clip nuts
are not required for all rack types. Consult your rack manufacturer’s
documentation.
are not required for all rack types. Consult your rack manufacturer’s
documentation.
■
If you are going to use clip nuts, position them on the rack before you install
the chassis. You must position the clip nuts according to the rack type:
the chassis. You must position the clip nuts according to the rack type:
■
For Metric racks, install clip nuts and screws in the closed slots of the chassis
flanges (see Figure 4 on page 22).
flanges (see Figure 4 on page 22).
■
For Telco racks, install clip nuts and screws in the open slots of the flanges
(see Figure 4 on page 22).
(see Figure 4 on page 22).
■
Because the equipment rack environment can cause increased ambient
temperatures and reduced air flow, review the “Environmental Specifications”
on page 16 and “Ventilation Requirements” on page 16.
temperatures and reduced air flow, review the “Environmental Specifications”
on page 16 and “Ventilation Requirements” on page 16.
■
Review the section “Precautionary Guidelines” on page 17.
■
Review the section “Safety Information” on page 18.
■
Review the section “Safety Precautions” on page 22.
■
Before you attempt to mount the chassis in a rack, select a rack that can
support at least 61.8 kg (136.5 lb), which is three times the weight of a fully
loaded chassis.
support at least 61.8 kg (136.5 lb), which is three times the weight of a fully
loaded chassis.
■
If you install more than one chassis in a rack, install the bottom chassis first.
Chassis PreInstallation
Guidelines
Before you install the chassis:
■
Move the Switch 4005 shipping box to a location near where you plan to install
the chassis. Leave the chassis in its packaging until you are ready to install it.
the chassis. Leave the chassis in its packaging until you are ready to install it.
■
For a rack installation, make certain that you have a Phillips screwdriver, a
flat-blade screwdriver, and the hardware kit available. For table or shelf
installation, have the rubber feet from the hardware kit available.
flat-blade screwdriver, and the hardware kit available. For table or shelf
installation, have the rubber feet from the hardware kit available.
■
Attach the flanges (L-shaped brackets) to the sides of the chassis before you
attempt to lift and install the chassis in a rack.
attempt to lift and install the chassis in a rack.
Cable Management
Device Preinstallation
Guidelines
Before you install any cable management device in a rack, determine which rack
position is best by examining the:
position is best by examining the:
■
Location in the rack where you plan to install the chassis
■
Depth of the rack in which you plan to install the chassis
■
Space required for proper ventilation of the chassis
■
Space required for module cables to bend
■
Proximity of other devices in the rack and their installation or environmental
requirements
requirements