Table 120: Fan and Acoustic Noise
Switch Model Bystander Sound Pressure Declared Sound Power
X450-G2-24t-GE4
X450-G2-24t-10GE4
Fixed AC or DC power supply with front-to-back (FB)
airflow
49.8 dB(A), 0°C to 39°C
64.9 dB(A), 50°C
6.1 bels, 0°C to 39°C
7.6 bels, 50°C
X450-G2-48t-GE4
X450-G2-48t-10GE4
Fixed AC or DC power supply with front-to-back (FB)
airflow
49.9 dB(A), 0°C to 39°C
64.8 dB(A), 50°C
6.1 bels, 0°C to 39°C
7.6 bels, 50°C
X450-G2-24p-GE4
X450-G2-24p-10GE4
Dual 715 W AC or DC power supply with front-to-back
(FB) airflow
51.1 dB(A), 0°C to 39°C
65.5 dB(A), 50°C
6.2 bels, 0°C to 39°C
7.7 bels, 50°C
X450-G2-24p-GE4
X450-G2-24p-10GE4
Dual 715 W AC or DC power supply with front-to-back
(FB) airflow with applied PoE load
50.1 dB(A), 0°C to 39°C
64.5 dB(A), 50°C
6.1 bels, 0°C to 39°C
7.6 bels, 50°C
X450-G2-48p-GE4
X450-G2-48p-10GE4
Dual 1100 W AC or DC power supply with front-to-back
(FB) airflow
50.8 dB(A), 0°C to 39°C
65.4 dB(A), 50°C
6.2 bels, 0°C to 39°C
7.6 bels, 50°C
X450-G2-48p-GE4
X450-G2-48p-10GE4
Dual 1100 W AC or DC power supply with front-to-back
(FB) airflow with applied PoE load
56.5 dB(A), 0°C to 39°C
66.8 dB(A), 50°C
6.8 bels, 0°C to 39°C
7.8 bels, 50°C
Note
Acoustic noise levels represent noise emitted by the switch at room ambient temperatures.
Values are based on a fully configured system consisting of two PSUs operating under full
load. Normal operating temperature range: 0°C to 50°C.
Table 121: X450-G2 Fan Speed and Power Consumption
Fan Speed Fan Module RPM (typical) Power
Inlet Fan Outlet Fan Maximum Typical
Full 14,000 (±15%) 7,000 (±15%) 36 W 30.6
Low 6,400 (±15%) 2,900 (±15%) 3.96 W (typical)
8
Sound pressure is presented for comparison per ISO 7779
9
Declared Sound Power is presented in accordance with ISO 7779, ISO 9296 per ETSI/EN 300 753
Technical Specifications
ExtremeSwitching and Summit Switches: Hardware Installation Guide 328
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