MODULAR CIRCUIT TECHNOLOGY

MCT-AMS

Card Type

Serial card

Chipset/Controller

Unidentified UART

I/O Options

Serial ports (4)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 3

J1

Serial port 2

J3

Serial port 4

J2

Serial port 1

J4

SERIAL PORT ADDRESS MODE

Mode

Port 1(J4)

Port 2(J3)

Port 3(J1)

Port 4(J2)

A

COM1

COM2

COM3

COM4

B

COM2

COM3

COM4

COM5

C

COM3

COM4

COM5

COM6

D

COM4

COM5

COM6

COM7

E

COM5

COM6

COM7

COM8

F

COM6

COM7

COM8

N/A

G

COM7

COM8

N/A

N/A

H

COM8

N/A

N/A

N/A

SERIAL PORT ADDRESS JUMPER CONFIGURATION

Mode

SW1/1

SW1/2

SW1/3

A

Off

Off

Off

B

Off

Off

On

C

Off

On

Off

D

Off

On

On

E

On

Off

Off

F

On

Off

On

G

On

On

Off

H

On

On

On

PRIMARY SERIAL PORT INTERRUPT SELECTION

IRQ

SW2/1

SW2/2

SW2/3

SW2/4

»

IRQ4

Off

Off

On

Off

 

IRQ2

On

Off

Off

Off

 

IRQ3

Off

On

Off

Off

 

IRQ5

Off

Off

Off

On

SECONDARY SERIAL PORT INTERRUPT SELECTION

IRQ

SW2/5

SW2/6

SW2/7

SW2/8

»

IRQ3

Off

On

Off

Off

 

IRQ2

On

Off

Off

Off

 

IRQ4

Off

Off

On

Off

 

IRQ5

Off

Off

Off

On

THIRD SERIAL PORT INTERRUPT SELECTION

IRQ

SW3/1

SW3/2

SW3/3

SW3/4

»

IRQ4

Off

Off

On

Off

 

IRQ2

On

Off

Off

Off

 

IRQ3

Off

On

Off

Off

 

IRQ5

Off

Off

Off

On

FOURTH SERIAL PORT INTERRUPT SELECTION

IRQ

SW3/5

SW3/6

SW3/7

SW3/8

»

IRQ3

Off

On

Off

Off

 

IRQ2

On

Off

Off

Off

 

IRQ4

Off

Off

On

Off

 

IRQ5

Off

Off

Off

On

PRIMARY SERIAL PORT NORMAL/FORCED-TRUE CONFIGURATION

Setting

JP8/A

JP8/B

JP8/C

»

Normal

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Forced-True

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

PRIMARY SERIAL PORT DTE/DCE SELECTION

JUMPER JP7

SECONDARY SERIAL PORT NORMAL/FORCED-TRUE CONFIGURATION

Setting

JP6/A

JP6/B

JP6/C

»

Normal

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Forced-True

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

SECONDARY SERIAL PORT DTE/DCE SELECTION

JUMPER JP5

THIRD SERIAL PORT NORMAL/FORCED-TRUE CONFIGURATION

Setting

JP3/A

JP3/B

JP3/C

»

Normal

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Forced-True

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

THIRD SERIAL PORT DTE/DCE SELECTION

JUMPER JP1

FOURTH SERIAL PORT NORMAL/FORCED-TRUE CONFIGURATION

Setting

JP4/A

JP4/B

JP4/C

»

Normal

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Forced-True

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

FOURTH SERIAL PORT DTE/DCE SELECTION

JUMPER JP2