NuDAQ ACL-7120A, User Manual, Page: 18 / 40

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Installation
How to define the base address for the ACL-7120A?
DIP1 through DIP6 in the switch SW1 are one-to-one corresponding
to the PC bus address line A8 to A4. A9 is always 1 and A0~A3 are
always 0. If you want to change the base address, you can only
change the values of A8 to A4 (the shadowed area of the table
below). The following table shows how to define the base address
as
Hex 2A0
Base Address: Hex 2A0
2 A 0
1 0 1 0 1 0 0 0 0 0
A9 A8 A7 A6 A5 A4 A3 A2 A1 A0