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# 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
(IMG) IMG 1
+------------------------------------------------------------+
| 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 | JP3 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | 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 | 4 | 2F8h | 3 | 1B0h | 1B8h |
| | | (COM1:) | | (COM2:) | | | |
|----+---+----------+-----+----------+-----+--------+--------|
| | 2 | 3F8h | 4 | 2F8h | 3 | 2B0h | 2B8h |
| | | (COM1:) | | (COM2:) | | | |
|----+---+----------+-----+----------+-----+--------+--------|
| » | 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. |
+------------------------------------------------------------+