System Software; Qfx5120 Power System - Juniper QFX5120 Series Hardware Manual

Table 3: Components in QFX5120 Switches (continued)
Switch Models
QFX5120-32C-AFI
QFX5120-48Y-AFO2
QFX5120-48Y-AFI2
QFX5120-48Y-DC-AFO2
QFX5120-48Y-DC-AFI2

System Software

Juniper Networks QFX Series Ethernet Switches run Junos OS™ operating system (Junos OS), which
provides Layer 2 and Layer 3 switching, routing, and security services.

QFX5120 Power System

QFX5120-48Y switches support two AC or DC power supplies with different airflow directions. Power
supplies for the QFX5120 switch are fully redundant, load-sharing, and hot-removable and hot-insertable
FRUs. The QFX5120 switch models are shipped with two power supplies pre-installed in the rear panel
of the chassis.
CAUTION:
AC and DC power supplies in the same chassis.
Power supplies with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the
same chassis.
Power supplies and fan modules with different airflow labels (AIR IN (AFI) and AIR
OUT (AFO)) in the same chassis.
Built-in Ports
32x100G QSFP28 ports
and 2x10G SFP+ ports
48x25G SFP28 ports and
8x100G QSFP28 ports
48x25G SFP28 ports and
8x100G QSFP28 ports
48x25G SFP28 ports and
8x100G QSFP28 ports
48x25G SFP28 ports and
8x100G QSFP28 ports
Do not mix:
Fan Modules Shipped by
Default
Six fan modules; each with
an AIR IN (AFI) label.
Five fan modules; each with
an AIR OUT (AFO) label.
Five fan modules; each with
an AIR IN (AFI) label.
Five fan modules; each with
an AIR OUT (AFO) label.
Five fan modules; each with
an AIR IN (AFI) label.
Power Supply Shipped by
Default
Two 650 W AC power
supplies (1+1 redundancy).
Two 650 W AC power
supplies (1+1 redundancy).
Two 650 W AC power
supplies (1+1 redundancy).
Two 650 W DC power
supplies (1+1 redundancy).
Two 650 W DC power
supplies (1+1 redundancy).
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