Allied Telesis AT-SBx31CFC960 - Manual (Page 131)

SwitchBlade x3106 Chassis Switch and AT-SBx31CFC960 Card Installation Guide
131
Figure 75. Aligning the AT-SBx31CFC960 Card in the Chassis Slot
7. Slowly and carefully slide the card into the slot.
Caution
Keep the card level with the chassis as you slide it into the slot. You
might damage the components on the top or bottom of the card if
you slide it in at an angle. Refer to Figure 69 on page 127.
Caution
Do not force the AT-SBx31CFC960 Card into the slot. If you feel
resistance, remove it and try again. Be sure that the edges of the
card are properly aligned with the card guides.
8. When you feel the card make contact with the connector on the
backplane of the chassis, carefully close the two locking levers on the
front panel of the controller card to secure it in the chassis. Refer to
Figure 76 on page 132.