Maintenance and Field Replacement

There is a linecard and supervisor removal tool to facilitate the removal and installation of linecards and supervisor modules. Use the tool as a sleeve on the release handle. It is mounted on the supervisor module Front Panels. Replace the tool after each use.

 

Note: Follow ESD protection protocols while handling components of the switch during maintenance operations.

Switch Card Module

 

The switch card module is accessible from the rear of the switch as shown in Rear Panels. Refer to the following figure for more details on the removal and replacement of the switch card module.

Figure 1. Switch Card Module Maintenance
1 Switch Card Release Handle (Swing Arm)
2 Switch Card Release Buttons

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 it is removed from the chassis.

Removing Switch Card Module

The switch card module can include the fans and the power supplies. The release handle is a swing arm that is used for unseating and seating the switch card module.

Follow the steps listed below to remove the switch card module from the switch chassis.

  1. Ground yourself with an ESD wrist strap.
  2. Push the switch card release buttons.
  3. Move the release handle (swing arm) down.
  4. Carefully, remove the switch card module from the chassis while supporting it through the process.

Inserting Switch Card Module

 

The module insertion process is the inverse of the removal procedure. Follow the steps listed below to insert the switch card module into a chassis.

 

  1. Align the switch card module with the rails in the chassis for insertion.
  2. Lower the release handle (swing arm) down. Slide the module until it stops.
    Note: The module will stop sbout 8 mm (1/3") from the back of the switch.
  3. Close the release handle (swing arm) to its locked position (up) until both the green buttons pop out.
    Note: The upward swing arm movement will push and seat the switch card module. The green buttons pop out to indicate that the switch card module is locked. When locked, the release handle will not move down.

Power Supplies

 

The power supplies are accessible from the rear of the switch (Rear Panels). Refer to the following figure for more details on the removal and replacement of a power supply unit.

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

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 to be removed by disconnecting the AC power cable.
  3. Push the power supply release handle and remove the power supply as shown in the figure below.
    Figure 2. Remove power supply
    Note: PSUs are hot swappable and do not require the removal of the switchcard. The illustration shows the switchcard removed for clarity.

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.
    Note: he 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 output of the command 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. Refer to the following figure for more details on the removal and replacement of a fan module.

Removing a Fan Module

 

The following steps are required when removing or replacing fans from a switch.

Note: A representative fan is shown for the task. For the fan on your device refer to Fan Module Status Indicators for the location of the release.
  1. Ground yourself with an ESD wrist strap.
  2. Pinch the fan module release lever and slide the fan module out of the switch as shown in the figure below.
    Figure 3. Removing fan module
    Note: Fans are hot swappable and do not require the removal of the switchcard. The illustration shows the switchcard removed for clarity.

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 when the fan is 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. The LED is amber when a wrong fan is installed.

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 the removal and replacement of a supervisor module.

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

Removing Supervisor Module

The supervisor module has a release handle with a push button latch indicator. The ejector tool works for both the linecards and the supervisor.

Perform the following steps to remove the module.

  1. Put on a grounded ESD strap.
  2. Remove the linecard and supervisor removal tool from the front of the switch Front Panels.
  3. Push in the latch indicator button.
    Note: The handle will rotate freely without loosening the supervisor module if the latch indicator button is not pushed in.
  4. Attach the removal tool to the supervisor module ejector handle.
  5. Use the tool to rotate the ejector handle counterclockwise to release the supervisor module.
  6. Gently remove the supervisor module by pulling outwards once the tool rotation stops moving the supervisor module outwards (approximately five turns).

Installing 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 supervisor module into slot.
  4. Push the latch indicator button in.
  5. Use the removal tool to rotate the ejector handle clockwise until the tool rotates freely.
  6. Remove the tool to see if the latch indicator button has popped out.
    Note: The latch indicator button pops out and the tool rotates freely when the supervisor is fully seated.
    Note: Hand tightening is sufficient for installation.

Linecards

 

The linecards are accessible from the front of the switch as shown in Front Panels. The linecards are hot-swappable. You must take into account that the linecard you are inserting is compatible with the switch and the linecard that you are replacing. Refer to the following figure for more details on the removal and replacement of a linecard module.

Note: A representative linecard is shown for illustration.
Figure 4. Linecard Module Maintenance
1 Linecard Metal 3 Latch Indicator Button 5 Linecard Metal
2 Ejector (Release) Handle 4 Engaging and Aligning, Geared Screw    

Removing Linecard

 

Perform the following steps to remove a linecard.

  1. Put on a grounded ESD strap.
  2. Remove the linecard (and supervisor) removal tool from the front of the switch Front Panels.
  3. Push in the latch indicator button on the linecard to be removed.
    Note: The handle will rotate freely without loosening the linecard if the latch indicator button is not pushed in.
  4. Attach the tool to the linecard ejector handle.
  5. Use the tool to rotate the handle counterclockwise to release the linecard.
  6. Gently remove the linecard by pulling outwards.

Installing 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. Push the latch indicator button in.
  5. Use the removal tool to rotate the ejector handle clockwise until the tool rotates freely.
  6. Remove the tool to see if the latch indicator button has popped out.
    Note: The latch indicator button pops out and the tool rotates freely when the linecard is fully seated.
    Note: Hand tightening is sufficient for installation.
  7. Verify that the linecard is operating normally (Linecard Module Indicators).