Fan And Acoustic Noise; Fan Tray And Speed Variation - Extreme Networks ExtremeSwitching X435 Series Hardware Installation Manual

Technical Specifications

Fan and Acoustic Noise

Table 240: Fan and Acoustic Noise
Switch Model
X695-48Y-8C-F
(FB airflow)
X695-48Y-8C-R
(BF airflow)

Fan Tray and Speed Variation

Fan speeds are adjusted based on calculations of the temperatures on all sensors. Due to one fan being
located behind the other, air pushed from one fan may cause the other fan in the module to run at a
higher speed. One fan can run at medium speed while the other can spin at high speed if one is close to
the temperature boundary.
Table 241: Fan Tray Speed Variation
Description
Tray 1 Fan 1
Tray 1 Fan 2
Tray 2 Fan 1
Tray 2 Fan 2
Tray 3 Fan 1
Tray 3 Fan 2
Tray 4 Fan 1
Tray 4 Fan 2
Tray 5 Fan 1
Tray 5 Fan 2
Tray 6 Fan 1
Tray 6 Fan 2
*The color of the tab on the fan tray indicates the airflow direction:
•
Red = Front-to-Back
•
Blue = Back-to-Front
Bystander Sound Pressure (at 25°C)
52.2 db(A)
50.5 db(A)
Operation Status
up
up
up
up
up
up
up
up
up
up
up
up
ExtremeSwitching Hardware Installation Guide 435
Declared Sound Power (at 25°C)
6.8 bels
6.7 bels
Operation Speed
high speed
medium speed
high speed
medium speed
high speed
medium speed
high speed
medium speed
high speed
medium speed
high speed
medium speed
Fan and Acoustic Noise
Airflow Direction
unknown*
unknown*
unknown*
unknown*
unknown*
unknown*
unknown*
unknown*
unknown*
unknown*
unknown*
unknown*