SEALEVEL SYSTEMS, INC.
SIO-II
| 
 Card Type  | 
 Serial card  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Maximum Onboard Memory  | 
 Unidentified  | 
| 
 I/O Options  | 
 Serial port  | 
| 
 Hard Drives supported  | 
 None  | 
| 
 Floppy drives supported  | 
 None  | 
| 
 Data Bus  | 
 8-bit ISA  | 
| 
 Card Size  | 
 Half-length, full-height  | 
| 
 CONNECTIONS  | |
| 
 Function  | 
 Label  | 
| 
 Serial Port 1  | 
 CN1  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 RS-485 enabled by RTS  | 
 E2  | 
 Closed  | |
| 
 RS-485 always enabled  | 
 E2  | 
 Open  | |
| 
 RS-232 with U7 & U11 installed  | 
 E5  | 
 Pins 2 & 3 closed  | |
| » | 
 RS-422/485 with U6 & U7 installed  | 
 E5  | 
 Pins 2 & 3 closed  | 
| 
 Current Loop with U6 & U7 installed  | 
 E5  | 
 Pins 1 & 2 closed  | |
| 
 Note: For the RS-422, the RS-485, and the Current loop, the RS-422/485 driver/receiver pair are installed at U6 and U7. For the RS-232, U6 and U7 must be removed and the RS-232 driver/receiver pair are installed at locations U17 and U11.  | |||
| 
 BASE I/O ADDRESS SELECTION PORT 1  | |||||||||
| 
 Setting  | 
 SW1/1  | 
 SW1/2  | 
 SW1/3  | 
 SW1/4  | 
 SW1/5  | 
 SW1/6  | 
 SW1/7  | 
 SW1/8  | |
| 
 238h  | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | |
| 
 2B8h  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | |
| 
 338h  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | |
| 
 3B8h  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | |
| 
 278h  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
 Off  | 
 Off  | |
| 
 2F8h  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
 Off  | 
 Off  | |
| 
 378h  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
 Off  | |
| » | 
 3F8h  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 On  | 
| 
 Disabled  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | |
| 
 SERIAL PORT 1 INTERRUPT SELECTION  | ||||
| 
 IRQ  | 
 E1/Pins 1 & 2  | 
 E1/Pins 2 & 3  | 
 E9  | |
| 
 IRQ3  | 
 Closed  | 
 Closed  | 
 Open  | |
| » | 
 IRQ4  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 IRQ5  | 
 Open  | 
 Open  | 
 Closed  | |
| 
 None  | 
 Open  | 
 Open  | 
 Open  | |