Supermicro SSE-X3348T, Руководство по установке

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SSE-X3348T/ SSE-X3348TR Switch Installation Manual
4-2
How to Install the Switch in a Rack
When rack mounting the switch, pay particular attention to the following factors:
• Rack Types: You can use any standard EIA 19-inch equipment rack with either two
or four posts. The bracket hole pattern should be spaced 1U (1.75 in. or 4.45 cm)
apart.
• Rack Stability: Whenever possible, secure the rack to the building ceiling or floor,
particularly if you are located in a region where earthquakes are common.
• Rack Planning: When installing equipment in a rack, first plan how units can be
best arranged. Try to always mount the heaviest equipment at the bottom of the
rack.
• Temperature: Since the temperature within a rack assembly may be higher than
the ambient room temperature, check that the rack-environment temperature is
within the specified operating temperature range. See
"Switch Cooling
Requirements" on page 4-2 .
• Mechanical Loading: Do not place any equipment on top of a rack-mounted unit.
• Circuit Overloading: Be sure that the supply circuit to the rack assembly is not
overloaded.
• Grounding: Rack-mounted equipment should be properly grounded.
Rack-Mounting Items
Before you start to rack-mount the switch, be sure to have the following items available:
• Four mounting screws for each device you plan to install in a rack—these are not
included. Be sure to use the rack mounting screws that are supplied with the rack.
• A screwdriver (Phillips or flathead, depending on the type of screws used).
Rack-Mount Procedure
The switch can be mounted in a rack using the included mounting brackets or optional
mounting rails. Due to the weight of the switch, it is strongly recommended that is be
supported by a rack shelf or by using Supermicro mounting rails (part number
CSE-PT052L).
Switch Cooling Requirements
Wherever the switch is located, be sure to pay close attention to switch cooling
requirements. The location should be well ventilated and provide unrestricted air flow at
the front, back, and sides of the switch. If the air flow is insufficient, it may cause the
switch to overheat and possibly fail.
The switch includes a fan tray module located in the rear of the switch. The switch may
have either a front-to-back (F2B) airflow direction (SSE-X3348T) or a back-to-front
(B2F) airflow direction (SSE-X3348TR). The switch’s plug-in power supply modules also
include a fan, which can be either F2B or B2F airflow direction. For proper switch
cooling, all installed modules must have a matching airflow direction.
Figure 4-1 shows the airflow types through the switch.