Juniper EX4400 - Acoustic Noise for EX4400 Switches

Acousc Noise for EX4400 Switches
Table 86 on page 277 lists the typical acousc noise measurements for EX4400 switch models taken
from the front of the chassis at 23° C, in compliance with ISO 7779.
Table 86: Typical Acousc Noise for EX4400 Switches
Switch Model Power Supply or Power Supplies Installed Typical Acousc Noise
in dB(A)
EX4400-24T One 550-W AC power supply with front-to-back airow 42.7
One 550-W AC power supply with back-to-front airow 46.08
One 550-W DC power supply with front-to-back airow 42.59
One 550-W DC power supply with back-to-front airow 46.19
Two 550-W AC power supplies with front-to-back airow 41.68
Two 550-W AC power supplies with back-to-front airow 46.03
Two 550-W DC power supplies with front-to-back airow 42.54
Two 550-W DC power supplies with back-to-front airow 46.54
EX4400-24P One 1050-W AC power supply with front-to-back airow 44.45
Two 1050-W AC power supplies with front-to-back airow 44.23
One 1600-W AC power supply with front-to-back airow 48.8
Two 1600-W AC power supplies with front-to-back airow 48.1
EX4400-24MP One 1050-W AC power supply with front-to-back airow 46.11
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