H3C Technologies H3C S12500 Series Switches - Manual (Page 91)

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Replacing a card
All cards of the S12500 are hot-swappable.
Preparing for the replacement
1. Put on an ESD wrist strap, and make sure the wrist strap makes good skin contact and is correctly
grounded.
2. Unpack the card to be installed. If the card has a protection cover, remove the protection cover.
Keep the removed protection cover for future use.
For more information about how to remove the protection cover, see "
Installing the switch ."
3. Remove the network cables and power cords from the card to be removed.
Replacement procedure
CAUTION:
Before you remove an active MPU when the router is operating, you must use the reboot command to
reboot the active MPU to change its status to standby. You can use the display device command or view
the LEDs to verify the status of the active MPU. For more information about the MPU LED description, see
" Appendix B LEDs ." For more information about the reboot and display device commands, see H3C
S12500 Series Routing Switches Fundamentals Command Reference.
To replace a card:
1. Loosen the captive screws on the card.
2. Move the ejector levers outwards to separate the card from the backplane.
3. Slowly pull out the card along the slide rails. Put the removed card in an antistatic bag or in its
original shipping materials.
Figure 66 Removing a card from the S12504
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