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Table 8 Metric and Telco Rack Space Requirements
1
Chassis
Height
Telco
Rack
8-slot
57.6 cm
13 RU
chassis
22.69 in.
1
The height of the chassis, allowing for some extension beyond
the location of the upper and lower unit dividing lines.
2
The unit of measure is 1 Rack Unit (1.75 in. or 4.45 cm).
3
The unit of measure is 1 System Unit (25 millimeters).
4
This is the recommended minimum space required between the
front of the chassis and another vertical surface (such as a rack
door).
Rack-Mount Installation Recommendations
Follow these recommendations when you install the
chassis in a rack:
Install the supplied mounting shelves into the rack
I
for the 8-slot chassis.
Before you mount the 8-slot chassis in the rack,
I
install the optional cable management device.
Install the cable management device for the 8-slot
I
chassis above or below where the chassis is located
in the rack.
Use at least two people to install any chassis.
I
Before you install a chassis into a rack, make certain
that the rack you are using is properly aligned and
squared. Use a framing square to ensure that the rack
is squared. Doing so makes installing the chassis into
the rack easier.
Metric
Front
2
Rack
3
Clearance
4
23 SU
8 cm
3 in.
Site Requirements for the Switch
WARNING: To maintain proper cooling in the chassis
and to maintain safety compliance, make certain that
blank faceplates cover any empty slots.
Ventilation Requirements
This section describes ventilation requirements for the
8-slot chassis.
The Switch 4007R 8-slot chassis contains two fan
trays.
To remove and replace the fan trays in the 8-slot
chassis, and to maintain proper cooling, make certain
that there is at least 91.4 cm (36 in.) between the rear
of the 8-slot chassis and the nearest wall (or other
vertical surface).
The vent holes at the back of the 8-slot chassis are
exhaust vents that cool the power supply bay. Do not
block these vents.
CAUTION: Operate the 8-slot chassis with a full
complement of fans.
43
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