Fujitsu ScanSnap iX1500 Basic Operation Manual page 151

Press [Client certificate] and select the certificate to be used.
HINT
To check the details about the certificate, press the [Certificate] button.
l To perform the authentication with a user ID and a password
Press the input field and enter a value for [User ID] and [Password] respectively, and then
press [OK].
l To perform the authentication with an external ID
Press the input field for [External ID], enter the external ID, and press [OK].
3.
Press the [Complete] button in the [Check Connection Results] screen.
4.
Press to return to the home screen.
Changing the Wireless LAN Connection Method (iX1500)
151