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





ACB 56

SEALEVEL SYSTEMS, INC.

ACB 56

Card Type

Serial card

Chip Set

Unidentified

Maximum Onboard Memory

Unidentified

I/O Options

Serial ports (2)

Hard Drives supported

None

Floppy drives supported

None

Data Bus

16-bit ISA

Card Size

Full-length, full-height

CONNECTIONS

Function

Label

Function

Label

Serial Port 1 (V.35)

P3

Serial Port 2 (RS-232)

P4

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

E2

Unidentified

»

Factory configured - do not alter

E3

Unidentified

»

Factory configured - do not alter

E4

Unidentified

»

Factory configured - do not alter

E8

Unidentified

»

Port 2 enabled

E9

Closed

 

Port 2 disabled

E9

Open

»

Port 1 enabled

E10

Closed

 

Port 1 disabled

E10

Open

»

Factory configured - do not alter

E11

Unidentified

Note: The size and orientation of E2, E3, E4, E8, and E11 is unidentified.

BASE I/O ADDRESS SELECTION

Setting

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

»

238h

Off

On

On

On

Off

Off

Off

 

280h

Off

On

Off

On

On

On

On

 

2A0h

Off

On

Off

On

Off

On

On

 

2E8h

Off

On

Off

Off

Off

On

Off

 

300h

Off

Off

On

On

On

On

On

 

328h

Off

Off

On

On

Off

On

Off

 

3E8h

Off

Off

Off

Off

Off

On

Off

SERIAL PORT INTERRUPT SELECTION

IRQ

E6/A

E6/B

E6/C

E6/D

E6/E

E6/F

E6/G

E6/H

E6/I

 

2/9

Closed

Open

Open

Open

Open

Open

Open

Open

Open

 

3

Open

Closed

Open

Open

Open

Open

Open

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

Open

Open

Open

»

5

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Closed

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Open

Closed

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Open

Closed

Open

Open

 

12

Open

Open

Open

Open

Open

Open

Open

Closed

Open

 

15

Open

Open

Open

Open

Open

Open

Open

Open

Closed

SERIAL INTERRUPT MODE SELECTION

IRQ

E6/J

E6/K

»

Normal interrupt mode

Closed

Open

 

Shared interrupt mode

Open

Closed

DMA TRI-STATE DRIVER MODE

Mode

E7/G

E7/H

DMA -State drivers permanently enabled

Closed

Open

DMA Tri-State drivers enabled by status/control port bit 7

Open

Closed

DMA disabled

Open

Open

DMA CHANNEL SELECTION (HALF-DUPLEX)

Channel

E1/A

E1/B

E1/C

E1/D

E1/E

E1/F

1

Open

Open

Open

Closed

Open

Closed

3

Open

Open

Open

Closed

Closed

Open

Note: DMA must be enabled by setting the DMA Tri-State driver mode.

DMA CHANNEL SELECTION (HALF-DUPLEX) (CON’T)

Channel

E7/A

E7/B

E7/C

E7/D

E7/E

E7/F

1

Open

Open

Open

Closed

Open

Open

3

Open

Closed

Open

Open

Open

Open

DMA CHANNEL SELECTION (FULL DUPLEX)

Channel

E1/A

E1/B

E1/C

E1/D

E1/E

E1/F

 

1 Receive/3 Transmit data

Closed

Open

Open

Closed

Open

Open

»

1 Transmit/3 Receive data

Closed

Open

Open

Closed

Open

Open

Note: DMA must be enabled by setting the DMA Tri-State driver mode.

DMA CHANNEL SELECTION (FULL DUPLEX) (CON’)

Channel

E7/A

E7/B

E7/C

E7/D

E7/E

E7/F

 

1 Receive/3 Transmit data

Closed

Open

Open

Closed

Open

Closed

»

1 Transmit/3 Receive data

Open

Closed

Closed

Open

Open

Closed

CLOCK INPUT MODES

MODE

E5

Normal receive

Pins 1 & 2 closed

Inverted receive

Pins 3 & 4 closed

Normal transmit

Pins 5 & 6 closed

Inverted transmit

Pins 7 & 8 closed

Transmit clock input enabled

Pins 9 & 10 closed