Airfow Direction In Ex4500 Switch Models; Front-To-Back Airflow - Juniper EX4500 Hardware Manual

NOTE: The side of the switch where the network ports are located is the front of the switch.

Airfow Direction in EX4500 Switch Models

Table 15 on page 55 shows the different EX4500 switch models and their direction of airflow.
Table 15: Airflow Direction in EX4500 Switch Models
Model
EX4500-40F-FB
EX4500-40F-BF
EX4500-40F-FB- C
EX4500-40F-BF-C
EX4500-40F-DC-C
EX4500-40F-VC1-FB
EX4500-40F-VC1-BF
EX4500-40F-VC1-DC

Front-to-Back Airflow

In the EX4500 switch models that have front-to-back airflow, the air intake to cool the chassis is located
on the front of the chassis. Air is pulled into the chassis and pushed toward the fan tray. Hot air exhausts
from the rear of the chassis. See Figure 19 on page 56.
Direction of Airflow
Front-to-back
Back-to-front
Front-to-back
Back-to-front
Front-to-back
Front-to-back
Back-to-front
Front-to-back
55