MULTI-TECH SYSTEMS, INC.

ISI4608PC

Card Type

Serial card

Chip Set

Unidentified

Maximum Onboard Memory

Unidentified

I/O Options

Serial ports (8) via octopus cable

Hard Drives supported

None

Floppy drives supported

None

Data Bus

16-bit ISA

Card Size

Three-quarter length, full-height

CONNECTIONS

Function

Label

72 pin connector

CN1

BASE I/O ADDRESS SELECTION

Setting

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

 

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

 

128h

Off

On

Off

On

On

Off

On

On

»

200h

On

On

On

On

On

On

Off

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

SERIAL PORT INTERRUPT SELECTION

IRQ

JP1

 

2

Pins 1 & 2 closed

»

3

Pins 3 & 4 closed

 

4

Pins 5 & 6 closed

 

5

Pins 7 & 8 closed

 

7

Pins 9 & 10 closed

 

10

Pins 11 & 12 closed

 

11

Pins 13 & 14 closed

 

12

Pins 15 & 16 closed

 

15

Pins 17 & 18 closed