SEA LEVEL SYSTEMS, INC.
ACB-II
| 
 Card Type  | 
 Serial card  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 I/O Options  | 
 Serial port  | 
| 
 Data Bus  | 
 8-bit ISA  | 

| 
 CONNECTIONS  | 
|
| 
 Function  | 
 Label  | 
| 
 Serial port  | 
 P1  | 
| 
 USER CONFIGURABLE SETTINGS  | 
|||
| 
 Function  | 
 Label  | 
 Position  | 
|
| 
 »  | 
 Factory configured - do not alter (IRQ selection)  | 
 E1  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 E2  | 
 Unidentified  | 
| 
 »  | 
 Factory configured - do not alter  | 
 E5  | 
 Unidentified  | 
| 
 »  | 
 Factory configured - do not alter  | 
 E6  | 
 Unidentified  | 
| 
 »  | 
 DMA enabled  | 
 E7  | 
 Pins 1 & 2 closed  | 
| 
 
  | 
 DMA disabled  | 
 E7  | 
 Pins 2 & 3 closed  | 
| 
 »  | 
 Factory configured - do not alter (IRQ selection)  | 
 E9  | 
 Closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 E10  | 
 Unidentified  | 
| 
 »  | 
 Factory configured - do not alter  | 
 E11  | 
 Unidentified  | 
| 
 BASE I/O ADDRESS SELECTION  | 
|||||||||
| 
 Setting  | 
 SW1/1  | 
 SW1/2  | 
 SW1/3  | 
 SW1/4  | 
 SW1/5  | 
 SW1/6  | 
 SW1/7  | 
 SW1/8  | 
|
| 
 
  | 
 3F8  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
| 
 
  | 
 378  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
| 
 
  | 
 2F8  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
| 
 
  | 
 278  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
| 
 
  | 
 3B8  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
| 
 
  | 
 338  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
| 
 
  | 
 2B8  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
| 
 »  | 
 238  | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
| 
 DMA CHANNEL SELECTION  | 
||
| 
 Channel  | 
 E3  | 
|
| 
 
  | 
 1  | 
 Pins 1 & 3, 2 & 4 closed  | 
| 
 »  | 
 3  | 
 Pins 3 & 5, 4 & 6 closed  | 
| 
 I/O PIN SELECTION  | 
|
| 
 SETTING  | 
 E4  | 
| 
 RXC pin as input to DB-25  | 
 Pins 1 & 2 closed  | 
| 
 RDB pin as input to SCC  | 
 Pins 3 & 4 closed  | 
| 
 TXC as output to DB-25  | 
 Pins 5 & 6 closed  | 
| 
 DTR as output to DB-25  | 
 Pins 7 & 8 closed  | 
| 
 TDB as output to DB-25  | 
 Pins 9 & 10 closed  |