...because we can't all be on the bleeding edge...





HIGH SPEED DUAL ASYNCHRONOUS SERIAL BOARD

U.S. ROBOTICS, INC.

HIGH SPEED DUAL ASYNCHRONOUS SERIAL BOARD

Card Type

Serial card

Chipset Controller

165550AN UART

I/O Options

Serial port (2)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

9-pin serial port

CN1

9-pin serial port

CN2

SERIAL PORT CHANNEL A CONFIGURATION

Setting

J1

J2

J3

J4

COM1: (3F8h)

Pins 1 & 2 closed

Open

Open

Open

 

COM2: (3E8h)

Open

Pins 1 & 2 closed

Open

Open

 

COM3: (2F8h)

Open

Open

Pins 1 & 2 closed

Open

 

COM4: (2E8h)

Open

Open

Open

Pins 1 & 2 closed

SERIAL PORT CHANNEL B CONFIGURATION

Setting

J1

J2

J3

J4

COM2: (3E8h)

Open

Pins 2 & 3 closed

Open

Open

 

COM1: (3F8h)

Pins 2 & 3 closed

Open

Open

Open

 

COM3: (2F8h)

Open

Open

Pins 2 & 3 closed

Open

 

COM4: (2E8h)

Open

Open

Open

Pins 2 & 3 closed

CHANNEL A INTERRUPT SELECTION

IRQ

J5/A

J5/B

J5/C

J5/D

J5/E

4

Open

Open

Closed

Open

Open

 

2

Closed

Open

Open

Open

Open

 

3

Open

Closed

Open

Open

Open

 

5

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Closed

CHANNEL B INTERRUPT SELECTION

IRQ

J6/A

J6/B

J6/C

J6/D

J6/E

3

Open

Closed

Open

Open

Open

 

2

Closed

Open

Open

Open

Open

 

4

Open

Open

Closed

Open

Open

 

5

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Closed