Qfx5120 Cooling System - Juniper QFX5120 Series Hardware Manual

QFX5120 Cooling System

QFX5120-48Y switches are shipped with five fan modules (4+1 redundancy) preinstalled at the rear of
the chassis. QFX5120-32C switches are shipped with six fan modules (5+1 redundancy) preinstalled at
the rear of the chassis. These fan modules are designed for one of the two available airflow directions
(Airflow In or Airflow Out). The fan modules are also color-coded according to the airflow direction.
Figure 21 on page 42 shows the QFX5120-32C fan module.
Figure 21: QFX5120-32C -AFI Fan Module
Figure 22 on page 42 shows the QFX5120-48Y fan module.
Figure 22: QFX5120-48Y-AFI2 Fan Module
For QFX5120-32C, the six fan modules are numbered 0 through 5 counting from left to right. For
QFX5120-48Y, the five fan modules are numbered 0 through 4 counting from left to right. Each fan module
slot has a fan icon and an LED next to it.
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