Figure 88: Seating An Ethernet Line Card On The Backplane Connector; Figure 89: Tightening The Thumb Screws On An Ethernet Line Card - Allied Telesis AT-SBx81CFC400 Installation Manual

SwitchBlade x8112 Chassis Switch and AT-SBx81CFC400 Card Installation Guide
Figure 88. Seating an Ethernet Line Card on the Backplane Connector
8. Finger tighten the two thumbscrews on the sides of the line card to
secure it to the chassis, as shown in Figure 89.
Figure 89. Tightening the Thumb Screws on an Ethernet Line Card
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