|
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
|
|