Longshine LCS-8051A - Manual (Page 15)

ISDN PCI card
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4. If your PC has PnP BIOS, you can choose “Auto setting”.
Then the IRQ and I/O Port of the ISDN card will be
configured by the system.
5. After setting the properties of the ISDN card, you might
see the following screen prompting for the path of the
Windows NT source files to installing the Remote
Access Service (RAS).
6. When the RAS is installed, you will see the following
screen for configuring ISDN ports as RAS devices.