
Xtreme/104 Opto User’s Manual, Connect Tech Inc.
Revision 0.05 12
Figure 4: Interrupt (IRQ) selection jumper setting examples
Example: Mode 3 – two IRQs (Xtreme/104 Opto, 4 port model only)
In the following example, Ports 1 and 2 are set to interrupt on IRQ 7 and
Ports 3 and 4 interrupt on IRQ 10.
JB3
IRQ select
A
B
9
7 4 36 5
IRQ jumper block
JB1
C
D
15 11 1014
12
IRQ jumper block
JB2
A
B
C
D
E
F
G
Example: Mode 4 – four IRQs (Xtreme/104 Opto, 4 port model only)
In the following example, Port 1 is set to interrupt on IRQ 7. Port 2
interrupts on IRQ 4. Port 3 interrupts on IRQ 12. Port 4 interrupts on IRQ
10.
JB3
IRQ select
A
B
9
7 4 36 5
IRQ jumper block
JB1
C
D
15 11 1014
12
IRQ jumper block
JB2
A
B
C
D
E
F
G
Example: Mode 1 – one IRQ
In the following example, the jumper blocks are set so all ports interrupt on
IRQ 4.
JB3
IRQ select
A
B
9
7
4365
IRQ jumper block
JB1
A
B
C
D
E
F
G
Example: Mode 2 – two IRQs
In the following example, Ports 1 and 3 are set to interrupt on IRQ 7. Ports
2 and 4 interrupt on IRQ 12.
JB3
IRQ select
A
B
9
74365
IRQ
um
er block
JB1
C
D
15
11
1014
12
IRQ
um
er block
JB2
A
B
C
D
E
F
G
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