DECISION COMPUTER INTERNATIONAL CO., LTD.
SAFLINE 4-PORT MULTIPLEXER SERIAL
Card Type | Serial |
Chipset | GoldStar |
I/O Options | Serial ports (4) |
Data Bus | 8-bit ISA |

CONNECTIONS | |
Function | Label |
Serial ports via RJ-11 connector | J1 |
Note:Standard DB-25 serial ports are provided on an external expansion box. | |
USER CONFIGURABLE SETTINGS | |||
Setting | Label | Position | |
| » | Bus speed set to 16MHz or lower | JP1 | Pins 1 & 2 closed |
Bus speed set higher than 16MHz | JP1 | Pins 3 & 4 closed | |
| » | Factory configured - do not alter | JP3 | Unidentified |
| » | Board is in normal mode | JP5 | Pins 1 & 2 closed |
Board is in PC-MOS/386 mode | JP5 | Pins 2 & 3 closed | |
SERIAL PORT ADDRESSES/INTERRUPTS | |||||||
Option | Port 1 | IRQ | Port 2 | IRQ | Port 3 | Port 4 | |
1 | 3F8h (COM1:) | 4 | 2F8h (COM2:) | 3 | 1B0h | 1B8h | |
2 | 3F8h (COM1:) | 4 | 2F8h (COM2:) | 3 | 2B0h | 2B8h | |
| » | 3 | 1A0h | SW1 | 1A8h | SW1 | 1B0h | 1B8h |
4 | 2A0h | SW1 | 2A8h | SW1 | 2B0h | 2B8h | |
Note:The interrupt for port 3 and port 4 is always set by SW1. | |||||||
SERIAL PORT ADDRESSES/INTERRUPTS (CON’T) | ||||
Option | JP2 | SW1/7 | SW1/8 | |
1 | Pins 1 & 2, 3 & 4 closed | On | On | |
2 | Pins 1 & 2, 3 & 4 closed | On | Off | |
| » | 3 | Open | Off | On |
4 | Open | Off | Off | |
INTERRUPT | |||||||
Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | |
IRQ2 | On | Off | Off | Off | Off | Off | |
IRQ3 | Off | On | Off | Off | Off | Off | |
IRQ4 | Off | Off | On | Off | Off | Off | |
| » | IRQ5 | Off | Off | Off | On | Off | Off |
IRQ6 | Off | Off | Off | Off | On | Off | |
IRQ7 | Off | Off | Off | Off | Off | On | |
MAXIMUM TRANSFER RATE | |||
Setting | JP4/A | JP4/B | JP4/C |
9600bps | Open | Open | Closed |
19.2Kbps | Open | Closed | Open |
38.4Kbps | Closed | Open | Open |
DIAGNOSTIC LED(S) |
The function of the LED is unidentified. |