Juniper EX4300 Series

Table 28: Airow Direcon in EX4300 Switch Models (Connued)
Model Number Fan Modules and Power Supply Direcon of Airow
EX4300-48T-DC-AFI The switch ships with two fan
modules and a DC power supply,
each with a label AIR IN (AFI).
Back-to-front—that is, air intake to
cool the chassis is through the vents
on the rear panel of the chassis and
hot air exhausts through the vents
on the front panel of the chassis.
CAUTION: Do not mix:
• AC and DC power supplies in the same chassis
• Power supplies and fan modules with dierent airow labels (AIR IN (AFI) and AIR
OUT (AFO)) in the same chassis
• Fan modules with dierent airow labels (AIR IN (AFI) and AIR OUT (AFO)) in the
same chassis.
• Power supplies and fan modules with dierent airow labels (AIR IN (AFI) and AIR
OUT (AFO)) in the same chassis.
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