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# DECISION COMPUTER INTERNATIONAL CO., LTD.
PCCOM 8-BIT ISA 4-PORT RS-422 (NEW)
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 DB-37 connector | J1 |
|------------------------------------------------------------|
| Note:Standard DB-25 serial ports are provided on an |
| included adapter cable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | J2 | Pins 1 & 2 |
| | alter | | closed |
|---+---------------------------------+-------+--------------|
| » | Bus speed set to 16MHz or lower | JP2 | Pins 1 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Bus speed set higher than 16MHz | JP2 | Pins 2 & 4 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | SW1/6 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | SW1/7 | Off |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | SW1/8 | Off |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT ADDRESSES |
|------------------------------------------------------------|
| Port 1 | Port 2 | Port 3 | Port | SW1/1 | SW1/2 |
| | | | 4 | | |
|----------------+----------+--------+-------+-------+-------|
| | 3F8h | 2F8h | 2B0h | 2B8h | On | On |
| | (COM1:) | (COM2:) | | | | |
|---+------------+----------+--------+-------+-------+-------|
| | 3F8h | 2F8h | 1B0h | 1B8h | On | Off |
| | (COM1:) | (COM2:) | | | | |
|---+------------+----------+--------+-------+-------+-------|
| » | 2A0h | 2A8h | 2B0h | 2B8h | Off | On |
|---+------------+----------+--------+-------+-------+-------|
| | 1A0h | 1A8h | 1B0h | 1B8h | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT MODE |
|------------------------------------------------------------|
| Setting | SW1/3 | SW1/4 | SW1/5 |
|-------------------+-------------+-------------+------------|
| » | Global | Off | Off | On |
|---+---------------+-------------+-------------+------------|
| | Separate | On | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 1 INTERRUPT |
|------------------------------------------------------------|
| Setting | JP3/A | JP3/B | JP3/C | JP3/D | JP3/E | JP3/F |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ2 | Pins 2 | Open | Open | Open | Open | Open |
| | & 3 | | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ3 | Open | Pins 2 | Open | Open | Open | Open |
| | | & 3 | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ4 | Open | Open | Pins 2 | Open | Open | Open |
| | | | & 3 | | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ5 | Open | Open | Open | Pins | Open | Open |
| | | | | 2 & 3 | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ6 | Open | Open | Open | Open | Pins | Open |
| | | | | | 2 & 3 | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ7 | Open | Open | Open | Open | Open | Pins |
| | | | | | | 2 & 3 |
|------------------------------------------------------------|
| Note:Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 2 INTERRUPT |
|------------------------------------------------------------|
| Setting | JP3/A | JP3/B | JP3/C | JP3/D | JP3/E | JP3/F |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ2 | Pins 1 | Open | Open | Open | Open | Open |
| | & 2 | | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ3 | Open | Pins 1 | Open | Open | Open | Open |
| | | & 2 | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ4 | Open | Open | Pins 1 | Open | Open | Open |
| | | | & 2 | | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ5 | Open | Open | Open | Pins | Open | Open |
| | | | | 1 & 2 | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ6 | Open | Open | Open | Open | Pins | Open |
| | | | | | 1 & 2 | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ7 | Open | Open | Open | Open | Open | Pins |
| | | | | | | 1 & 2 |
|------------------------------------------------------------|
| Note:Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 3 INTERRUPT |
|------------------------------------------------------------|
| Setting | JP4/A | JP4/B | JP4/C | JP4/D | JP4/E | JP4/F |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ2 | Pins 2 | Open | Open | Open | Open | Open |
| | & 3 | | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ3 | Open | Pins 2 | Open | Open | Open | Open |
| | | & 3 | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ4 | Open | Open | Pins 2 | Open | Open | Open |
| | | | & 3 | | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ5 | Open | Open | Open | Pins | Open | Open |
| | | | | 2 & 3 | | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ6 | Open | Open | Open | Open | Pins | Open |
| | | | | | 2 & 3 | |
|---------+--------+--------+--------+-------+-------+-------|
| IRQ7 | Open | Open | Open | Open | Open | Pins |
| | | | | | | 2 & 3 |
|------------------------------------------------------------|
| Note:Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 4/GLOBAL INTERRUPT |
|------------------------------------------------------------|
| Setting | JP4/A | JP4/B | JP4/C | JP4/D | JP4/E | JP4/F |
|----------+--------+--------+-------+-------+-------+-------|
| | IRQ2 | Pins 1 | Open | Open | Open | Open | Open |
| | | & 2 | | | | | |
|---+------+--------+--------+-------+-------+-------+-------|
| | IRQ3 | Open | Pins 1 | Open | Open | Open | Open |
| | | | & 2 | | | | |
|---+------+--------+--------+-------+-------+-------+-------|
| | IRQ4 | Open | Open | Pins | Open | Open | Open |
| | | | | 1 & 2 | | | |
|---+------+--------+--------+-------+-------+-------+-------|
| » | IRQ5 | Open | Open | Open | Pins | Open | Open |
| | | | | | 1 & 2 | | |
|---+------+--------+--------+-------+-------+-------+-------|
| | IRQ6 | Open | Open | Open | Open | Pins | Open |
| | | | | | | 1 & 2 | |
|---+------+--------+--------+-------+-------+-------+-------|
| | IRQ7 | Open | Open | Open | Open | Open | Pins |
| | | | | | | | 1 & 2 |
|------------------------------------------------------------|
| Note:Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| The function of the LED is unidentified. |
+------------------------------------------------------------+