Installation Guide

Table 178: Fan and Acoustic Noise (continued)
Switch Model Bystander Sound Pressure Declared Sound Power
(L
WAd
)
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
Power Options
Table 179: Summit X670-G2 Power Options
X670-G2-48x-4q (part # 17310) 550 W AC power supply:
Part # 10925 550 W AC PS FB (front-to-back), Model # DS550HE-3
Part # 10927 550 W AC PS BF (back-to-front), Model # DS550HE-3-02
100-240 V, 50/60 Hz, 2.25 A max per PS
550 W DC power supply:
Part # 10926 550 W DC PS FB (front-to-back), Model # DS550DC-3
Part # 10928 550 W DC PS BF (back-to-front), Model #
DS550DC-3-003
-48 VDC, 5.75 A max per PS
X670-G2-72x (part # 17300) 550 W AC power supply:
Part # 10925 550 W AC PS FB (front-to-back), Model # DS550HE-3
Part # 10927 550 W AC PS BF (back-to-front), Model # DS550HE-3-02
100-240 V, 50/60 Hz, 2.75 A max per PS
550 W DC power supply:
Part # 10926 550 W DC PS FB (front-to-back), Model # DS550DC-3
Part # 10928 550 W DC PS BF (back-to-front), Model #
DS550DC-3-003
-48 VDC, 6.75 A max per PS
14
Bystander Sound pressure is presented for comparison to other products measured using Bystander Sound Pressure.
15
Declared Sound Power is presented in accordance with ISO 7779:2010(E), ISO 9296:2010 per ETSI/EN 300
753:2012-01.
Technical Specifications
ExtremeSwitching and Summit Switches: Hardware Installation Guide 351