Removing And Installing Fan Modules; Removing A Fan Module On The Cisco Mds 9148S Switch - Cisco MDS 9100 Series Hardware Installation Manual

Chapter 2 Installing the Cisco MDS 9148S Switch
Step 2
Make sure the power cord is disconnected before installing the power supply.
Step 3
Verify that the power switch is in the off (0) position on the power supply that you are installing.
Step 4
Slide the power supply into the power supply bay. Make sure that the power supply is fully seated in the
bay.
Step 5
Tighten the power supply captive screw.
Step 6
Plug the power cord into the power supply.
Step 7
Connect the other end of the power cord to an AC-input power source.
Note
Step 8
Turn the power switch to the on (|) position on the power supply.
Step 9
Verify power supply operation by checking that the power supply (P/S) LED in the front panel is green.
If the LED is not green, see the Cisco MDS 9000 Family Troubleshooting Guide.

Removing and Installing Fan Modules

This section provides instructions for removing and installing the fan modules for the Cisco MDS 9148S
switch.

Removing a Fan Module on the Cisco MDS 9148S Switch

The fan module is designed to be removed and replaced while the system is operating without presenting
an electrical hazard or damaging the system.
Caution
The Cisco MDS 9000 Family has internal temperature sensors that can shut down the system if the
temperature at different points within the chassis exceed certain safety thresholds. To be effective, the
temperature sensors require the presence of airflow; therefore, in the event a fan module is removed from
the chassis, the Cisco MDS 9000 Family will be shut down after five minutes to prevent potentially
undetectable overheating. However, the switches will shut down sooner if the higher-level temperature
threshold is exceeded.
When removing the fan tray, keep your hands and fingers away from the spinning fan blades. Let
Warning
the fan blades completely stop before you remove the fan tray. Statement 258
To remove the existing fan module, follow these steps:
Step 1
Locate the fan module in the back of the switch.
Step 2
Slide the seating tabs toward the center of the fan module.
Step 3
Grasp the fan module handle and pull it outward.
OL-20185-01
Depending on the outlet receptacle on your power distribution unit, you may need the optional
jumper power cord to connect the Cisco MDS 9148S switch to your outlet receptacle. See the
"Jumper Power Cord" section on page 1-6.
Cisco MDS 9148S Multilayer Switch Hardware Installation Guide
Removing and Installing Components
2-31