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DCL-624

QUATECH, INC.

DCL-624

Card Type

Serial controller

Chipset/Controller

8250 UART

I/O Options

Serial ports (2)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1 - DB-9

CN1

Serial port 2 - DB-9

CN2

INPUT CLOCK CONFIGURATION

MHz

J1

1.8432MHz

pins 1 & 2, 3 & 6, 4 & 5

 

3.6864MHz

pins 1 & 2, 4 & 5 closed

 

9.216MHz

pins 2 & 3, 4 & 5 closed

 

18.432MHz

pins 2 & 5 closed

PORT 1 INTERRUPT SELECT - J2

IRQ

Jumper A

Jumper B

Jumper C

Jumper D

Jumper E

Jumper F

IRQ4

open

open

closed

open

open

open

 

IRQ2

closed

open

open

open

open

open

 

IRQ3

open

closed

open

open

open

open

 

IRQ5

open

open

open

closed

open

open

 

IRQ6

open

open

open

open

closed

open

 

IRQ7

open

open

open

open

open

closed

PORT 2 INTERRUPT SELECT - J3

IRQ

Jumper A

Jumper B

Jumper C

Jumper D

Jumper E

Jumper F

IRQ3

open

closed

open

open

open

open

 

IRQ2

closed

open

open

open

open

open

INTERRUPT SELECT - J3

IRQ

Jumper A

Jumper B

Jumper C

Jumper D

Jumper E

Jumper F

IRQ4

open

open

closed

open

open

open

IRQ5

open

open

open

closed

open

open

IRQ6

open

open

open

open

closed

open

IRQ7

open

open

open

open

open

closed

POWER SUPPLY SELECT

Setting

J4

J5

Computer power supply

pins 2 & 3 closed

pins 2 & 3 closed

 

Isolated power supply

pins 1 & 2 closed

pins 1 & 2 closed

PORT 1 I/O ADDRESS CONFIGURATION

Base Address

SW1

SW3

3F8h

1, 2, 3, 4, 5 & 6 on

6 on

 

3220h

1, 2, 5, 6 & 8 on

1, 2, 4, 5 & 6 on

Note:The address range for the DCL-624 is from 0 to FFFFh. The switches are a binary representation of the addresses. When a switch is off, the corresponding bit is set to 1 and has the following decimal value: SW1/1=8, SW1/2=4, SW1/3=2, SW1/4=1, SW1/5=8, SW1/6=4, SW1/7=2, SW1/8=1, SW3/1=8, SW3/2=4, SW3/3=2, SW3/4=1, SW3/5=8. Port 1 requires 8 consecutive address locations.

PORT 2 I/O ADDRESS CONFIGURATION

Base Address

SW2

SW4

2F8h

1, 3, 4, 5, 6 & 8 on

6 on

 

3220h

1, 2, 5, 6 & 8 on

1, 2, 4, 5 & 6 on

Note:The address range for the DCL-624 is from 0 to FFFFh. The switches are a binary representation of the addresses. When a switch is off, the corresponding bit is set to 1 and has the following decimal value: SW2/1=8, SW2/2=4, SW2/3=2, SW2/4=1, SW2/5=8, SW2/6=4, SW2/7=2, SW2/8=1, SW4/1=8, SW4/2=4, SW4/3=2, SW4/4=1, SW4/5=8. Port 2 requires 8 consecutive address locations.

PORT 1 ENABLE/DISABLE

Setting

SW3/6

Enabled

on

 

Disabled

off

PORT 2 ENABLE/DISABLE

Setting

SW4/6

Enabled

on

 

Disabled

off

PORT 1 TRANSMISSION OPTIONS - SW5

Setting

SW5/1

SW5/2

SW5/3

SW5/4

SW5/5

SW5/6

SW5/7

SW5/8

20mA Active Transmit

off

off

on

on

on

off

off

off

 

30mA Active Transmit

off

off

on

on

on

on

off

off

 

60mA Active Transmit

off

off

on

on

on

on

on

off

 

Passive Transmit

on

on

off

off

off

off

off

off

PORT 2 TRANSMISSION OPTIONS - SW6

Setting

SW6/1

SW6/2

SW6/3

SW6/4

SW6/5

SW6/6

SW6/7

SW6/8

20mA Active Transmit

off

off

on

on

on

off

off

off

 

30mA Active Transmit

off

off

on

on

on

on

off

off

 

60mA Active Transmit

off

off

on

on

on

on

on

off

 

Passive Transmit

on

on

off

off

off

off

off

off

PORT 1 RECEIVE CIRCUIT CURRENT OPTIONS - SW7

Setting

SW7/1

SW7/2

SW7/3

20mA

on

off

off

 

30mA

off

on

off

 

60mA

off

off

on

PORT 2 RECEIVE CIRCUIT CURRENT OPTIONS - SW7

Setting

SW7/4

SW7/5

SW7/6

20mA

on

off

off

 

30mA

off

on

off

 

60mA

off

off

on

PORT 1 RECEIVE OPTIONS - SW8

Setting

SW8/1

SW8/2

SW8/3

SW8/4

SW8/5

SW8/6

SW8/7

SW8/8

Passive Receive

on

on

off

off

off

off

off

off

 

20mA Active Receive

off

off

on

on

on

off

off

off

 

30mA Active Receive

off

off

on

on

on

on

off

off

 

60mA Active Receive

off

off

on

on

on

on

on

off

PORT 2 RECEIVE OPTIONS - SW9

Setting

SW9/1

SW9/2

SW9/3

SW9/4

SW9/5

SW9/6

SW9/7

SW9/8

Passive Receive

on

on

off

off

off

off

off

off

 

20mA Active Receive

off

off

on

on

on

off

off

off

 

30mA Active Receive

off

off

on

on

on

on

off

off

 

60mA Active Receive

off

off

on

on

on

on

on

off