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6 Hardware Installation

Xtreme/104 Opto User's Manual, ver. 0.00

Example 1 Example 2

The following example shows

the port address jumper block

set for port addreses 2A0, 2A8,

2B0, 2B8 (hex) and status port

disabled

The following example shows

the port address jumper block

set for port addreses 100, 108,

110, 118 (hex) and status port

140 (hex) enabled.

JB3

I/O address select

Status

ort enable

(

)

JB3

I/O address select

Status

ort enable

(

)

Interrupt Selection

You can configure an interrupt request line (IRQ) with the jumper

blocks JB1, JB2 and JB3 on the Xtreme/104 Opto adapter. Please

refer to Figure 1 for a description and location of the jumper

blocks JB1, JB2 and JB3.

You are able to configure the Xtreme/104 Opto adapter for four

different IRQ modes.



Mode 1 (one IRQ):

1. First you make sure there are no jumpers across positions

E and D on the JB3 jumper block

2. All ports interrupting on one IRQ by setting jumpers on

the A or C rows and the middle rows of jumper blocks

JB1 or JB2.



Mode 2 (two IRQs):

1. First you jumper position D on the JB3 jumper block

2. The odd ports (ports 1, 3) interrupt on one IRQ by setting

jumpers on the B or D rows and the middle rows of

jumper blocks JB1 or JB2.

3. The even ports (ports 2, 4) interrupt on one IRQ by setting

jumpers on the A or C rows and the middle rows of

jumper blocks JB1 or JB2.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 31 32

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