Maintenance and Field Replacement

This section discusses the following topics:
Note: Follow ESD protection protocols while handling switch components during maintenance operations.

 

Switchcard Module

The switchcard module is accessible from the rear of the switch, as shown in Rear Panels. Refer to the following figure for more details on removing and replacing the switchcard module.

 

Figure 1. Switchcard Module Maintenance
1 Switchcard Release Handle 2 Switchcard Release Lever

 

The module includes lock levers that secure it to the chassis. The module and the lock levers are easily damaged by improperly removing, inserting, or handling. Use caution while lifting or moving the module after removing it from the chassis.

Removing the Switchcard Module

Follow the steps below to remove the switchcard module from the chassis.
  1. Ground yourself with an ESD wrist strap.
  2. Move the release handle down.
  3. Pinch the release levers towards the center to unlock the module from the chassis.
  4. Carefully remove the switchcard module from the chassis while supporting it.

Inserting the Switchcard Module

The module insertion process is the inverse of the removal procedure. Follow the steps listed below to insert the switchcard module into a chassis.
  1. Align the switchcard module with the rails in the chassis for insertion.
  2. Slide the module gently into the chassis until you feel a little resistance. The switchcard module will extend outside the chassis.
  3. Pinch the release levers towards the center and push the module until it is flush with the chassis. Let go of the release levers.
  4. Try moving the module out gently without engaging the release levers. The module will not move if it is seated correctly.
  5. Return the release handle to its locked position (up).

     

    Note: Descriptions for removing and replacing power supplies and fans are for a representative power supply or fan. Locations of status indicator LEDs may differ. Refer to your device's front and rear panel illustrations to locate the appropriate LED.

     

Power Supplies

The power supplies are accessible from the rear of the switch, as shown in Rear Panels. Refer to Removing a Power Supply for more details on removing and replacing a power supply unit.

The following steps are required when removing power supplies from a switch.

Removing a Power Supply

  1. Ground yourself with an ESD wrist strap.
  2. Power down the power supply, which will be removed by disconnecting the AC power cable.
  3. Push the power supply release handle and remove the power supply, as shown in the following figure.

     

    Figure 2. Power Supply Removal


    1 PSU Release Handle

     

Installing a Power Supply

You must make space for installing the power supply by removing an existing one (Removing a Power Supply).
  1. Remove the replacement power supply from its packaging.
  2. Slide the new power supply into the empty slot.
  3. Slide the new power supply into the switch until the power supply is fully seated, and the release handle snaps into place.
  4. Connect the power cord to the power supply.
  5. Verify the LED(s) on the power supply.

     

    Note: The Power Supply status LED should be a steady green for normal operation.

     

  6. Verify the new power supply operation by issuing the show environment power command. 
    switch# show environment power

     

    The command output will list the power supplies in operation and should include the one you replaced.

Fan Modules

The fan modules are accessible from the rear of the switch, as shown in Rear Panels.

Removing a Fan Module

The following steps are required when removing or replacing fans from a switch.
  1. Ground yourself with an ESD wrist strap.
  2. Push the fan module release lever and slide the fan module out of the switch, as shown in the following figure.

     

    Figure 3. Fan Module Removal

    1 Fan Module Release Lever

     

Installing a Fan Module

You must make space for installing the fan module by removing an existing one (Removing a Fan Module).
  1. Remove the replacement fan from its packaging.
  2. Slide the new fan module into the switch until the module is fully seated, and the release lever snaps into place.

    The fan installation indicator will be green installed and seated correctly.

  3. Verify that the fan module is working normally.

     

    Note: The fan module status LED should be a steady green for normal operation.

     

Supervisor Module

The supervisor module is accessible from the front of the switch, as shown in Front Panels. Refer to the following figure for more details on removing and replacing a supervisor module.

 

Note: Supervisors are hot-swappable. The switch will reboot when the replacement supervisor powers up.

 

 

Figure 4. Supervisor Module Maintenance

 

Removing a Supervisor Module

Perform the following steps to remove the module.
  1. Put on a grounded ESD strap.
  2. Lift the supervisor module ejector latch and move the latch down to release the supervisor module.
  3. Gently remove the supervisor module by pulling it outwards.

Installing a Supervisor Module

You must make space for installing the module by removing an existing one (Removing Supervisor Module). Perform the following steps to install the module.
  1. Put on a grounded, anti-static ESD strap.
  2. Unpack the supervisor module to be installed.
  3. Slide the supervisor module into the slot.
  4. Raise the ejector handle and latch it into place.
  5. Verify that the module is operating normally.

linecards

The linecards are accessible from the front of the switch, as shown on Front Panels. The linecards are hot-swappable. It would help to consider that the linecard you are inserting is compatible with the switch and the linecard you are replacing. Refer to the following figure for more details on removing and replacing a linecard module.

 

Figure 5. linecard Module Maintenance

 

Removing a linecard

Perform the following steps to remove a linecard.
  1. Put on a grounded, anti-static ESD strap.
  2. Use the ejector handle or lever in the middle of the linecard to release it from the chassis.
  3. Slide the linecard gently out of the slot.

Installing a linecard

You must make space for installing the linecard by removing an existing one (Removing linecard) from a linecard slot available on the switch.
  1. Put on a grounded, anti-static ESD strap.
  2. Unpack the linecard to be installed.
  3. Slide the linecard gently into the slot.
  4. Use the ejector handle of the linecard to seat the linecard into the chassis.
  5. Verify that the linecard is operating normally (Table 2).