Allied Telesis AT-2931SX - Manual (Page 26)

Installing the Hardware
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3. Select an empty, non-shared PCI slot and remove the faceplate.
Keep the faceplate in a safe place. You may need it for future use. See
Figure 2.
Figure 2. Removing the Faceplate From PCI Slot
Note
If you cannot locate or know how to find an appropriate PCI slot,
refer to the documentation that came with your system.
4. Remove the network adapter card from the shipping package and
store the packaging material in a safe location.
Caution
Wear a grounding device and observe electrostatic discharge
precautions when installing the network adapter card in a system.
Failure to observe this caution could result in damage to the card.
5. Applying even pressure at both corners of the card, push the adapter
card until it is firmly seated in the appropriate PCI slot.