After you have processed an offline certificate request from the certificate authority, you will be presented with a certificate file. The certificate file must be imported to your Edge Server, and the easiest way to do this is through the Lync Server Deployment Wizard.
1. Under Step 3: Request, Install, or Assign Certificate, click the Run button.
2. In the Certificate Wizard window, choose Import Certificate.
3. Choose the certificate file from your certificate authority and finish the import wizard.
4. This certificate should now be available to assign to Lync Services. See the next section for more information.