You are using the WRONG script. You should use one of the following scripts:
* "Global Village Bronze" which comes with ARA 2.0.
* "Global Village TelePort" which comes with ARA 1.0.
These modem scripts are included with the respective ARA software and can be installed during installation. Do NOT use the "... ADB" script! The Performa modem draws power from the Apple Desktop Bus (ADB), but is not an ADB modem like the original TelePort ADB modem.