Extreme Networks VSP 4900 Series User Manual

Table 33: Fan and Acoustic Noise
Switch
Model
Ambie
nt
Temp
VIM PoE Main
Fan
Speed
(% of
max)
PSU1 +
PSU2
Bystande
r Sound
Pressure
Declared
Sound
Power
(L
WAd
)
VSP4900-4
8P switch
25°C VIM5-4XE 720W 20% 1100W (½ of
max PoE
power
45.8 56.6
VSP4900-12
MXU-12XE
Switch
25°C None 720W 30% 1450W (½
of max PoE
power
50.3 55.1
VSP4900-2
4S switch
25°C None None 30% 350W 49.5 56.2
VSP4900-2
4XE switch
25°C None None 30% 350W 49.9 56.8
Note: *Power Supply fans at 100%
Note: Acoustic noise levels shown here represent noise emitted by the switch at
room ambient temperatures. Values are based on a fully congured system consisting
of two PSUs and two I/O modules operating under full load. Normal operating
temperature range: 0°C to 50°C.
Fan Speed and Temperature Variation
The speed of the fan increases only when the temperature of the device increases. Fan
speed is not dependent on any fan failures.
Table 34: VSP 4900 Fan Speed and Power Consumption
Fan Speed Fan Module RPM (typical) Power
Inlet Fan Outlet Fan Typical
Full 16,000 (typ) 13,500 (typ) 15.8W per module*
Low 3,200 (typ) 2,800 (typ)
* Some units are equipped with (1) fan module, while others are equipped with 2. Total
fan power is equal to the number of installed fan modules multiplied by the fan power
for each module.
2
Bystander Sound pressure is presented for comparison to other products measured using
Bystander Sound Pressure*
3
Declared Sound Power is presented in accordance with ISO 7779:2010(E), ISO 9296:2010 per
ETSI/EN 300 753:2012-01
Technical Specications Fan Speed and Temperature Variation
VSP 4900 Series Switches: Hardware Installation Guide 79

Extreme Networks VSP 4900 Series Specifications

General

Brand	Extreme Networks
Model	VSP 4900 Series
Category	Switch
Language	English