Allied Telesis NETEXTREME II AT-2973SX - Manual (Page 37)

AT-2973SX, AT-2973T, and AT-2973T/4 NetExtreme II Family Adapters Installation and User’s Guide
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Figure 12. Securing the Adapter with a High-profile Bracket
7. Replace the system’s cover and secure it with the screws removed in
Step 2.
8. Disconnect any personal antistatic devices.
9. Power the system on.
Once the system returns to proper operation, the adapter hardware is
fully installed. Next, connect the network cables. See “Connecting the
Network Cables” on page 38.