Allied Telesis AT-SBx81CFC960 - Manual (Page 122)

Chapter 6: Installing the Power Supplies
122 Section II: Installing the Chassis
Figure 60. Removing the Blank Slot Cover from Power Supply Slot C
3. Remove the power supply from the shipping package and verify that
the shipping package contains the items listed in Figure 61 on page
123.
If any item is missing or damaged, contact your Allied Telesis sales
representative for assistance.