red lion EL326, Руководство по установке

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EL326 Installation Guide Rev 10-Feb-14 Page 17 of 33
Section 3 Thermal Considerations
Overview
The EL326 switches are designed to operate from -35 to +
80˚C when they are installed
properly. The switch is cooled via conduction and radiation. There are no fans. Instead there
are various heat-sinks inside the switch to conduct the heat from the components to the heavy-
gauge aluminum case. The heat is then dissipated from the case via radiation to the
surrounding air.
Rack
Mounting
When the switch is rack mounted, for best heat dissipation it is recommended that there be
around 1/2U or more of free air space above and below the switch (as shown below). This
allows the heat to radiate to the air. Any moving air in your rack will improve on the cooling of
the switch.
Note:
An air gap is not absolutely necessary but highly recommended when you know that the
switch will experience
high heat (> 60˚C) for extended periods of time.
EL326 Rack Mounting Recommendation
Suggestion:
If your space is limited and you must choose between an air gap on the bottom
versus an air gap on the top it is better to have the air gap on the top.
BTU / Hour
The power consumption of the switch can be as much as 120 Watts with all ports linked and
active. Based on this, the heat dissipation can be as much as 408 BTU per hour. Please plan
your system accordingly.
0.75" [19.1mm] above switch
0.75" [19.1mm] below switch
other device
other device