Technical information

Opto IN24 OPTO DIO Reference
The i/o addresses that are likely to be good in Figure 6-3.
addresses to avoid is given in Figure 6-4. Only if the particular
adapter card is present need the relevant address be avoided.
Figure 6-1. PC Opto IN24 Card Layout.___________________________________
WATCH DOG EXPOWER
Reslo BUS
Reshi Not
BUS gated to IRQ Connected 50
or RESET via software WAY
C
A
IO Addr B
030Chex L
12345678 E
IRQ7
Figure 6-2. Opto IN24 Factory Set DIP Switches.__________________________________________
DIP 1-7 I/O Address select
on
X
off 12345678 DIP switch 8 is DON’T CARE
PC Opto IN24 Factory Set Default Address= 030C Hex, 776 Decimal
Figure 6-3. Likely I/O Address.___________________________
I/O ADDRESS NORMAL USE.___________ ___________
0204H- 0277H Unused.
0280H- 02BFH Unused.
02C8H- 02DFH Unused.
02E4H- 02F7H Unused.
0300H- 031FH Unused.
0330H- 035FH Unused.
0380H- 03AFH Unused Usually.
03E0H- 03EFH Unused.
Chapter 6 Page 65