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ISI502U

MULTITECH SYSTEMS, INC.

ISI502U

Card Type

Serial card

Chipset Controller

N/A

I/O Options

Serial ports (2)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

9-pin serial port

CN1

25-pin serial port

CN2

I/O BASE ADDRESS SELECTION

Address

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

380h

On

On

On

On

Off

Off

Off

On

 

100h

On

On

On

On

On

Off

On

On

 

108h

Off

On

On

On

On

Off

On

On

 

110h

On

Off

On

On

On

Off

On

On

 

118h

Off

Off

On

On

On

Off

On

On

 

120h

On

On

Off

On

On

Off

On

On

 

3D8h

Off

Off

On

Off

Off

Off

Off

On

 

3E0h

On

On

Off

Off

Off

Off

Off

On

 

3E8h

Off

On

Off

Off

Off

Off

Off

On

 

3F0h

On

Off

Off

Off

Off

Off

Off

On

 

3F8h

Off

Off

Off

Off

Off

Off

Off

On

Note:A total of 96 base address settings are available. The switches are a binary representation of the decimal memory addresses. Switch SW1/8 is the Most Significant Bit and switch SW1/1 is the Least Significant Bit. The switches have the following decimal values: switch SW1/1=8, SW1/2=16, SW1/3=32, SW1/4=64, SW1/5=128, SW1/6=256, SW1/7=512, SW1/8=1024. Turn off the switches and add the values of the switches that are off to obtain the correct memory address. (Off=1, On=0)

INTERRUPT SELECTION

IRQ

J1/A

J1/B

J1/C

J1/D

J1/E

3

Open

Closed

Open

Open

Open

 

2/9

Closed

Open

Open

Open

Open

 

4

Open

Open

Closed

Open

Open

 

5

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Closed

FACTORY CONFIGURED - DO NOT ALTER

Jumper

Position

J2

N/A