Cisco RP Series Installation Manual page 50

Using the Cabling Portholes
Figure 25: Removing the Cabling Portholes
Step 2
Snap and discard the center of the cabling porthole. See callout 2.
Step 3 Replace the grommet ring of the cabling porthole in the opening. See callout 3.
Caution
Cisco R42612 Rack and RP-Series Metered Input PDU Installation Guide
48
Failure to replace the grommet ring may lead to damaged power or network cables.
Replacing Components