Table 214: Fan and Acoustic Noise
Switch Model Bystander Sound
Pressure
Declared Sound Power
(L
WAd
)
X670-G2-48x-4q
Dual 550 W AC power supply with front-to-back
(FB) airflow
60.2 dB(A), 0°C to 45°C 7.3 bels, 0°C to 45°C
X670-G2-48x-4q
Dual 550 W DC power supply with front-to-back
(FB) airflow
61.3 dB(A), 0°C to 45°C 7.4 bels, 0°C to 45°C
X670-G2-48x-4q
Dual 550 W AC power supply with back-to-front
(BF) airflow
58.3 dB(A), 0°C to 35°C
70.1 dB(A), 45°C
7.0 bels, 0°C to 35°C
8.4 bels, 45°C
X670-G2-48x-4q
Dual 550 W DC power supply with back-to-front
(BF) airflow
55.0 dB(A), 0°C to 35°C
68.7 dB(A), 45°C
6.5 bels, 0°C to 35°C
8.1 bels, 45°C
X670-G2-72x
Dual 550 W AC power supply with front-to-back
(FB) airflow
58.9 dB(A), 0°C to 35°C
62.5 dB(A), 45°C
7.3 bels, 0°C to 35°C
7.6 bels, 45°C
X670-G2-72x
Dual 550 W DC power supply with front-to-back
(FB) airflow
58.5 dB(A), 0°C to 35°C
62.4 dB(A), 45°C
7.3 bels, 0°C to 35°C
7.6 bels, 45°C
X670-G2-72x
Dual 550 W AC power supply with back-to-front
(BF) airflow
59.8 dB(A), 0°C to 35°C
72.6 dB(A), 45°C
7.3 bels, 0°C to 35°C
8.2 bels, 45°C
X670-G2-72x
Dual 550 W DC power supply with back-to-front
(BF) airflow
56.4 dB(A), 0°C to 35°C
73.0 dB(A), 45°C
6.7 bels, 0°C to 35°C
8.3 bels, 45°C
18
Bystander Sound pressure is presented for comparison to other products measured using Bystander Sound
Pressure.
19
Declared Sound Power is presented in accordance with ISO 7779:2010(E), ISO 9296:2010 per ETSI/EN 300
753:2012-01.
Summit X670-G2 Series Switches Technical
Specifications Technical Specifications
426 ExtremeSwitching Hardware Installation Guide
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