Allied Telesis AT-SBx81CFC960 - Manual (Page 141)

SwitchBlade x8106 Chassis Switch and AT-SBx81CFC960 Card Installation Guide
Section II: Installing the Chassis 141
Allied Telesis recommends tightening the screws to 5 inch-lbs.
4. Repeat this procedure to cover the remaining empty slots with blank
slot covers.
5. Store any unused blank panels in a secure location for future use.
6. Go to Chapter 8, “Installing the Transceivers and Cabling the Ports” on
page 143.