How to identify the fan airflow type on Dell EMC Networking S4112T-ON/S4112F-ON model switches.

This article explains the Fan combinations and Airflow types on Dell EMC Networking S4112T-ON/S4112F-ON model switches..

Table of Contents

Fan combinations
AC PSU
DC PSU
Normal Airflow
Reverse Airflow

 

Fan Combinations

There are four fan combinations available in S4112

1. AC PSU and system fans normal airflow
2. AC PSU and system fans reverse airflow
3. DC PSU and system fans normal airflow
4. DC PSU and system fans reverse airflow
    

Note: In S4112T-ON switch, PSU and fans are fixed.

These FAN units are factory installed and shipped based on order placed by the customer upon their installation requirement.  
 

AC PSU

This image represents the I/O Panel with AC power supply.

DC PSU

This image represents the I/O Panel with DC power supply.

This switch supports two airflow options: Normal and Reverse.

Normal Airflow

• Red arrow indicates normal airflow direction
• Exhales hot air
• Air flow is from I/O Panel to PSU

Reverse Airflow

• Blue arrow indicates reverse airflow direction.
• Inhales cold air.
• Airflow is from PSU to I/o Panel.