Installation
26
Instruction Manual - NXA-ENET8-POE+
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 airflow at the front, back, and sides of the switch. If the airflow is insufficient, it may cause the switch to
overheat and possibly fail.
The NXA-ENET8-POE+ uses a fanless cooling design. The following figure shows the convective airflow from the switch.
Rack Cooling
When mounting the switch in an enclosed rack or cabinet, be sure to check the following guidelines to prevent overheating:
Make sure that enough cool air can flow into the enclosure for the equipment it contains.
Check that the rack or cabinet allows the hot air to exit the enclosure (normally from the top) without circulating back into
equipment.
If the enclosure has sides or doors with ventilation holes, make sure they are not blocked by cables or other obstructions.
Route cables within the rack or cabinet to maximize the airflow.
When possible, do not completely fill the rack or cabinet with equipment, allow some unused space within the enclosure for
better airflow.
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 the
section on page 26 for more information.
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.
FIG. 7
Switch Cooling