Juniper QFX5120-48Y-AFO2 - QFX5120 DC Power Specifications; DC Power Supply Leds in QFX5120 Switches

Table 21: Airflow Direction in DC Power Supply Models for QFX5120 Switches
Direction of Airflow
Label on Power
SupplyModel
Front-to-back—that is, air intake to cool the chassis is through the
vents on the front panel of the chassis and hot air exhausts through
the vents on the rear panel of the chassis.
AIR OUT (AFO)JPSU-650-DC-AFO
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.
AIR IN (AFI)JPSU-650-DC-AFI
QFX5120 DC Power Specifications
The typical and maximum power consumption values are calculated using dummy transceivers on all ports.
Traffic is run at 25° C ambient.
Table 22: DC Power Specifications for QFX5120-48Y
SpecificationsItem
•
Rated operating voltage: –48 VDC
to 60 VDC
•
Operating voltage range: 40.8 VDC
through 72 VDC
DC input voltage
20 A maximumDC input current rating
260WTypical power consumption
450WMaximum power consumption
DC Power Supply LEDs in QFX5120 Switches
Figure 34 on page 61shows the location of the LEDs on the DC power supply.
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