Card
Setup
Sealevel Systems
ACB-II
Page
2
Card Setup
The
ACB-II
contains several jumper straps for each port which must be set
for proper operation.
Address Selection
The
ACB-II
occupies 8 consecutive I/O locations. The DIP-switch is used
to set the base address for these locations. Be careful when selecting the
base address as some selections conflict with existing PC ports. The
ACB-II
has a total of 8 I/O address selections, if more than one switch is
closed the board will be non-functional. Leaving all eight switches open
will disable the port
1 2 3 4 5 6 7 8
ON
OFF
378-37F HEX
(COM2:)
2F8-2FF HEX
278-27F HEX
(COM1:)
3F8-3FF HEX
3B8-3BF HEX
338-33F HEX
2B8-2BF HEX
238-23F HEX
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
Figure 1 - DIP-Switch Illustration
Refer to Appendix A for common address contentions.
The relative I/O addresses of the
ACB-II
are as follows:
•
Base+0 Channel A Data Port
•
Base+1 Channel A Control Port
•
Base+2 Channel B Data Port
•
Base+3 Channel B Control Port
