Allied Telesis AT-SBx81CFC960 - Manual (Page 110)

Chapter 6: Installing the Power Supplies
110 Section II: Installing the Chassis
Figure 48. Removing the Blank Slot Cover from Power Supply Slot C
3. Remove the new AT-SBxPWRSYS1 Power Supply from the shipping
package and verify the package contents, listed in Figure 49 on page
111.
If any item is missing or damaged, contact your Allied Telesis sales
representative for assistance.