
8 Hardware Installation
Example: Mode 1 – one IRQ
The following example shows the settings on JB3 and the IRQ jumper
block JB1 so that all ports will interrupt on IRQ 4.
JB3
IRQ select
A
B
9
7
4
36
5
IRQ jumper block
JB1
B
C
D
E
F
G
Example: Mode 2 – two IRQs
The following example shows the settings on JB3 and the IRQ jumper
blocks JB1 and JB2 so that ports 1, 3 will interrupt on IRQ 7 and
ports 2, 4 will interrupt on IRQ 12.
JB3
IRQ select
A
B
9
7
4
36
5
IRQ jumper block
JB1
C
D
15
11 1014
12
IRQ jumper block
JB2
B
C
D
E
F
G
Xtreme/104 Opto User's Manual, ver. 0.03
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