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DS-225/DS-325

QUATECH, INC.

DS-225/DS-325

Card Type

Serial interface

Chipset Controller

Unidentified

I/O Options

Serial ports (2)

Maximum Dram

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

J1

Serial port 2

J2

INTERRUPT SELECTION

IRQ

JP3

2

Pins 1 & 2 closed

3

Pins 3 & 4 closed

4

Pins 5 & 6 closed

5

Pins 7 & 8 closed

6

Pins 9 & 10 closed

7

Pins 11 & 12 closed

SERIAL INTERRUPT SHARING SELECTION

Setting

JP2

Non-sharable

Pins 1 & 2 closed

Sharable

Pins 2 & 3 closed

RS-422/485 DRIVER POWER-UP STATE SELECTION

State

JP5

Enabled

Pins 2 & 3 connected

Disabled

Pins 1 & 2 connected

ADDRESS SELECTION

Address

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

000h

On

On

On

On

On

On

On

On

008h

On

On

On

On

On

On

On

Off

010h

On

On

On

On

On

On

Off

On

018h

On

On

On

On

On

On

Off

Off

2E8h (COM4:)

On

Off

On

Off

Off

Off

On

Off

2F8h (COM2:)

On

Off

On

Off

Off

Off

Off

Off

3E8h (COM3:)

On

Off

Off

Off

Off

Off

On

Off

3F8h (COM1:)

On

Off

Off

Off

Off

Off

Off

Off

7E0h

Off

Off

Off

Off

Off

Off

On

On

7E8h

Off

Off

Off

Off

Off

Off

On

Off

7F0h

Off

Off

Off

Off

Off

Off

Off

On

7F8h

Off

Off

Off

Off

Off

Off

Off

Off

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

DTE/DCE SELECTION

JP6

DTE

DCE

INPUT CLOCK DIVISOR SELECT

JP1

10 (Default)

5

2

1

PROTOCOL SELECTION

Protocol

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

SW2/8

Software select

Off

Off

Off

Off

Off

Off

Off

Off

RS-232

On

On

On

Off

Off

On

Off

Off

RS-422/485

On

On

Off

On

Off

Off

On

Off

Current loop

On

On

Off

Off

On

Off

Off

On

CURRENT LOOP TRANSMIT MODE SELECTION

Mode

SW3/1

SW3/2

SW3/3

SW3/4

SW3/5

SW3/6

SW3/7

SW3/8

Passive

On

On

Off

Off

Off

Off

Off

Off

20mA active

Off

Off

On

On

On

Off

Off

Off

30mA active

Off

Off

On

On

On

On

Off

Off

60mA active

On

On

Off

Off

Off

Off

Off

On

CURRENT LOOP RECEIVE MODE SELECTION

Mode

SW4/1

SW4/2

SW4/3

SW4/4

SW4/5

SW4/6

SW4/7

SW4/8

JP4

Passive

On

On

Off

Off

Off

Off

Off

Off

Open

20mA active

Off

Off

On

On

On

Off

Off

Off

1 & 2 closed

30mA active

Off

Off

On

On

On

On

Off

Off

3 & 4 closed

60mA active

On

On

Off

Off

Off

Off

Off

On

5 & 6 closed