Note - Polycom IP331 Owner's Manual

The wireless adaptor has its own power supply. Plug the phone's
power cord into the short "power in" cord on the wireless adapter
and then into the wall outlet. Then,
1. Plug the included LAN cable into the Wireless Adapter
2. Plug the other end of the LAN cable into the back of the phone
using the port.
3. Plug the Wireless Adapter long power cord into an outlet
To avoid interference or static on the phone, place the Wireless
Adapter away from the phone as shown.

Note

3. Connect Power to the Desk Phone
Use the included power cord and plug one end into the back of the
phone and the other end into the wall outlet. The phone will indicate
that it is configuring itself. Once the phone has finished its
configuration, it is ready to make and receive phone calls.
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