100Figure 59 Removing the grounding cable(1) Grounding sign (2) Remove the grounding cable from the chassis(3) Loosen the hex nut on the grounding post of the grounding stripRemoving the twisted pair and optical fiberYou must remove twisted pairs and optical fibers from all the interfaces of the switch.NOTE:After pulling out an optical fiber from an optical transceiver module, cover the connector of the opticalfiber with a dust cap to keep the connector clean.Repackaging the switch accessoriesRepackaging the power moduleCAUTION:Before removing a power module, switch off the circuit breakers at the input end of all power cables, andremove all the power cables to avoid device damage and bodily injury.To repackage a power module:1. Prepare the packing bag and box of the power module. Make sure the bag is clean, dry, and notdamaged.2. Remove all power modules from the chassis, and then install blank filler panels to the empty slots.For how to remove a power module and install a blank filler panel, see "Replacementprocedures."3. Put the power module into the bag.4. Put the packed power module and power cable into the box. Place the power module in a correctdirection onto the foam cushion in the box; otherwise, the power module cannot be completelyseated into the foam cushion.