Fan Module - Cisco Catalyst 9300 Series Hardware Installation Manual

Product Overview
PoE Option
Cisco UPoE (up to 60 W per port)
4
The power supply modules have two status LEDs.
Table 14: Switch Power Supply Module LEDs
AC OK
Off
Green

Fan Module

The switch supports three internal hot-swappable 12-V fan modules (FAN-T2=) are available. The air circulation
system consists of the fan modules and the power supply modules. The airflow patterns vary depending on
the power supply configuration.
When the fan modules are operating properly, a green LED at the top left corner of the fan assembly (viewed
from the rear), is ON. If the fan fails, the LED turns to amber. The switch can operate with two operational
fans, but the failed fan should be replaced as soon as possible to avoid a service interruption due to a second
fan fault.
Figure 7: Switch Airflow Patterns
The following illustration shows the airflow pattern for the switches. The blue arrow shows cool airflow, and
the red arrow shows warm airflow.
For information about installing a fan module and fan specifications, see
64.
A 48-port switch with one 715-W power supply provides up to 8.7 W of PoE to all ports.
Description
No AC input power.
AC input power present.
24-Port Switch
(2) 1100 W
PS OK
Off
Green
Red
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
Fan Module
4
48-Port Switch
These are the combinations of
power supplies:
• (1) 1100 W + (1) 715 W
• (2) 1100 W
Note Up to 30 PoE ports can
receive full Cisco UPoE.
Description
Output is disabled, or input is outside
operating range (AC LED is off).
Power output to switch active.
Output has failed.
Installing a Fan Module, on page
17