ICS Advent DUAL232/AT Series, Product Manual

Page: 10 / 28

Manual Number: 00750-010-3 Page 3
Chapter 2: Address Selection
Each serial port on the DUAL232/AT : occupies 8 consecutive I/O locations, and looks to the PC as
a standard serial port. A dip switch (SW1) is used to set the port address options for the DUAL232/
AT : . Be careful when selecting the port addresses as some selections may conflict with existing
ports. The following table shows the addressing options available with the standard PAL. If you do
not see an address option that suits your needs, please contact Technical Support about a custom
PAL option.
Table 2-1: Address Selection Table
3RUW
-
3RUW
-
6: 6: 6: 6:
) ) 2Q 2Q 2Q 2II
( ( 2Q 2Q 2II 2Q
) ( 2Q 2Q 2II 2II
) ( 2Q 2II 2Q 2Q
2Q 2II 2Q 2II
2Q 2II 2II 2Q
2Q 2II 2II 2II
2II 2Q 2Q 2Q
2II 2Q 2Q 2II
2II 2Q 2II 2Q
2II 2Q 2II 2II
2II 2II 2Q 2Q
2II 2II 2Q 2II
2II 2II 2II 2Q
'LVDEOHG 'LVDEOHG 2II 2II 2II 2II
All addresses are in Hex
DOS NOTE: Each COM: port in your system should have a unique address. Typically COM1:-
COM4: addresses are 3F8, 2F8, 3E8 & 2E8 Hex. If a COM1: & COM 2: are already present, use
the second addressing option, this will provide the typical addresses for COM3: & COM4: .