Owner`s manual
Software/Driver Installation
40 MultiModemISI Hybrid Series, ISIHP-2S/2U
8. Return to the General tab to view COM port assignments (and
make changes if necessary).
9. Click Add and repeat installation steps 28 to install modems to the
last three ports of the ISIHP-2S/2U.
Now you are ready to configure the terminal adapters.