Allied Telesis AT-SBx31CFC960 - Manual (Page 119)

SwitchBlade x3106 Chassis Switch and AT-SBx31CFC960 Card Installation Guide
119
Figure 63. 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 64 on page
120.
If any item is missing or damaged, contact your Allied Telesis sales
representative for assistance.