Chapter 3
| Switch Chassis
Switch Cooling Requirements
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5. If installing a single switch only, go to “Power and Grounding” on page 29.
6. If installing multiple switches, repeat steps 1 to 4 to mount the switches
following your rack plan.
Switch Cooling Requirements
Wherever the switch is located, be sure to pay close attention to switch cooling
requirements. The location should be well ventilated and provide unrestricted air
flow at the front, back, and sides of the switch. If the air flow is insufficient, it may
cause the switch to overheat and possibly fail.
The switch includes a removable fan tray module located in the rear of the switch.
The module options may have either a front-to-back (F2B) airflow direction or a
back-to-front (B2F) airflow direction. The switch’s plug-in power supply modules
also include a fan, which can be either F2B or B2F airflow direction. For proper
switch cooling, all installed modules must have a matching airflow direction.
The following figure shows the airflow through the switch.
Figure 14: Switch Cooling
B2F Airflow F2B Airflow