Comtrol Multiport Modems Windows NT - Manual (Page 18)

Driver and Adapter Information 18
Changing or Viewing Adapter Configuration
b. Base I/O Address. (ISA-bus adapters only.) If desired, use the droplist to
select a different base I/O address.
If this is the first ISA-bus adapter in the system, the I/O address DIP switch
setting on the adapter must match the DIP switch illustration shown to the
right of the entry field.
If this is the second or subsequent ISA-bus adapter, you may select any
available I/O address range. The address you select here does not have to
match the DIP switches on the adapter.
However, the DIP switches on second and subsequent adapters must be set
in correct relation to the DIP switch settings used on the first adapter, as
described in the hardware installation instructions.
c. Starting COM Port. Use the droplist to select the COM port number to
assign to the first port on the adapter. All other port numbers will follow in
sequence.
If you have more than one adapter installed, the numbering on subsequent
adapters will follow from the first adapter. (For example, if the first adapter
has COM5 through COM12, the second adapter will begin with COM13.)
If desired, you can use this control to set nonsequential starting COM port
numbers for each adapter, thus leaving gaps in the COM port numbering
sequence.
Do not use this control to overlap COM port numbers. If you do so, the
overlapping ports will be disabled.
4. When you are done, select the OK button to close the Device Setup tab and
return to the Setup window.
Your changes are not saved until you select the OK button to save and exit
from the Setup window. When you do so, your changes take effect immediately.
No reboot is required.