Compaq Contec COM-2(PC)F - Manual (Page 27)

How to Use the Board
COM-2(PC)F
18
Operating under Windows NT
This section describes the procedure for using the board under
Windows NT and lists a number of points to note.
Procedure
First, set the operation mode (I/O address) and interrupt level for
the COM-2(PC)F. Set the COM-2(PC)F switch and jumpers as
described in Hardware Setup.
When using the board in compatible mode, the OS must be set to
recognize the I/O address and interrupt level used by the
COM-2(PC)F. Use the Ports icon in Control Panel to set the I/O
address and interrupt level.
The I/O address and interrupt level used by the COM-2(PC)F do not
need to be set for the OS when using the board in enhanced mode.