Juniper QFX5240 - QFX5240 Power System

QFX5240 Power System
IN THIS SECTION
QFX5240 AC Power Supply Module Descripon | 29
AC Power Cord Specicaons | 29
QFX5240 AC Power Supply Module LED | 31
The QFX5240 switch is powered by two 3000‑W redundant AC (QFX5240-PWR-AC-AO) power supply
modules (PSMs). The power supply modules support front-to-back airow (airow out or AFO). The
PSMs are fully redundant, load-sharing, and hot-removable and hot-insertable FRUs when the second
PSM is installed and running. You can remove and replace the PSMs without powering o the switch or
disrupng switch funcons.
The two PSMs together can supply double the power needed to power all the components in the
switch. When the switch has both the PSMs installed, the switch has full power redundancy. If a PSM
fails or is removed, the second PSM balances the electrical load without interrupon.
The PSMs for the QFX5240 are located on the FRU panel.
Figure 15: QFX5240 FRU Panel
1—
Power Supply Modules (PSM)
2—
Fan Modules
28