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LAVA DSERIAL-550

LAVA COMPUTER MANUFACTURING, INC.

LAVA DSERIAL-550

Card Type

Serial card

Chip Set

Unidentified

Maximum Onboard Memory

N/A

I/O Options

Serial ports (2)

Hard Drives supported

None

Floppy drives supported

None

Data Bus

16-bit ISA

Card Size

Half-length, full-height

CONNECTIONS

Function

Label

Function

Label

Serial port 1

CN1

Serial port 2

CN2

SERIAL PORT 1 CONFIGURATION

Setting

JP1/pins 1 & 2

JP1/pins 2 & 3

JP1/pins 4 & 5

JP1/pins 5 & 6

COM1

Closed

Open

Open

Open

COM2

Open

Closed

Open

Open

COM3

Open

Open

Closed

Open

COM4

Open

Open

Open

Closed

SERIAL PORT 2 CONFIGURATION

Setting

JP2/pins 1 & 2

JP2/pins 2 & 3

JP2/pins 4 & 5

JP2/pins 5 & 6

COM1

Closed

Open

Open

Open

COM2

Open

Closed

Open

Open

COM3

Open

Open

Closed

Open

COM4

Open

Open

Open

Closed

SERIAL PORT 1 INTERRUPT SELECTION

Setting

JP3/

pins

2 & 3

JP4/

pins

2 & 3

JP5/

pins

2 & 3

JP6/

pins

2 & 3

JP7/

pins

2 & 3

JP8/

pins

2 & 3

JP9/

pins

2 & 3

JP10/

pins

2 & 3

JP11/

pins

2 & 3

IRQ2

Open

Open

Closed

Open

Open

Open

Open

Open

Open

IRQ3

Closed

Open

Open

Open

Open

Open

Open

Open

Open

IRQ4

Open

Closed

Open

Open

Open

Open

Open

Open

Open

IRQ5

Open

Open

Open

Closed

Open

Open

Open

Open

Open

IRQ7

Open

Open

Open

Open

Closed

Open

Open

Open

Open

IRQ10

Open

Open

Open

Open

Open

Closed

Open

Open

Open

IRQ11

Open

Open

Open

Open

Open

Open

Closed

Open

Open

IRQ12

Open

Open

Open

Open

Open

Open

Open

Closed

Open

IRQ15

Open

Open

Open

Open

Open

Open

Open

Open

Closed

SERIAL PORT 2 INTERRUPT SELECTION

Setting

JP3/

pins

1 & 2

JP4/

pins

1 & 2

JP5/

pins

1 & 2

JP6/

pins

1 & 2

JP7/

pins

1 & 2

JP8/

pins

1 & 2

JP9/

pins

1 & 2

JP10/

pins

1 & 2

JP11/

pins

1 & 2

IRQ2

Open

Open

Closed

Open

Open

Open

Open

Open

Open

IRQ3

Closed

Open

Open

Open

Open

Open

Open

Open

Open

IRQ4

Open

Closed

Open

Open

Open

Open

Open

Open

Open

IRQ5

Open

Open

Open

Closed

Open

Open

Open

Open

Open

IRQ7

Open

Open

Open

Open

Closed

Open

Open

Open

Open

IRQ10

Open

Open

Open

Open

Open

Closed

Open

Open

Open

IRQ11

Open

Open

Open

Open

Open

Open

Closed

Open

Open

IRQ12

Open

Open

Open

Open

Open

Open

Open

Closed

Open

IRQ15

Open

Open

Open

Open

Open

Open

Open

Open

Closed