Cooling System And Airflow In An Ex3300 Switch; Airflow Direction In Ex3300 Switch Models; Table 14: Airflow Direction In Ex3300 Switch Models - Juniper EX3300 Complete Hardware Manual

Complete Hardware Guide for EX3300 Ethernet Switches
Table 13: Power Consumed by EX3300 Switches (continued)
Model Number
EX3300-24P
EX3300-24T-DC
EX3300-48T
EX3300-48T-BF
EX3300-48P
Related
Documentation

Cooling System and Airflow in an EX3300 Switch

Airflow Direction in EX3300 Switch Models

Table 14: Airflow Direction in EX3300 Switch Models

Model
EX3300-24T
EX3300-24P
22
Number of PoE-Enabled
Ports
24
–
–
–
48
AC Power Cord Specifications for EX3300 Switches on page 72
Rear Panel of an EX3300 Switch on page 7
Power Specifications for EX3300 Switches on page 71
Connecting AC Power to an EX3300 Switch on page 105
Connecting DC Power to an EX3300 Switch on page 107
Connecting Earth Ground to an EX Series Switch on page 99
The cooling system in an EX3300 switch consists of two fans: one along the rear of the
chassis and another along the left side of the chassis. The fans provide front-to-back or
back-to-front chassis cooling depending on the switch model.
This topic describes:
Airflow Direction in EX3300 Switch Models on page 22
Front-to-Back Airflow on page 23
Back-to-Front Airflow on page 23
Table 14 on page 22 shows the different EX3300 switch models and their direction of
airflow.
Maximum Power
Consumed by the Switch
60 W (when no PoE power is
drawn)
50 W
76 W
76 W
91 W (when no PoE power is
drawn)
Direction of Airflow
Front-to-back
Front-to-back
Maximum System Power
Available for PoE
405 W
–
–
–
740 W
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