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# AQUARIUS SYSTEMS, INC.
AT BUS I/O KARTE
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 16-bit ISA |
|-------------------+----------------------------------------|
| Size: | Half-length, full-height card |
|-------------------+----------------------------------------|
| Hard drive | Two IDE(AT) drives |
| supported: | |
|-------------------+----------------------------------------|
| Floppy drives | Two 360KB, 720KB, 1.2MB, or 1.44MB |
| supported: | drives |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|------------------------------------------+-----------------|
| 40-pin IDE(AT) connector | J1 |
|------------------------------------------+-----------------|
| 34-pin cable connector - floppy drive | J5 |
|------------------------------------------+-----------------|
| 10-pin serial port 2 - internal | CN1 |
|------------------------------------------+-----------------|
| 9-pin serial port 1 - external | CN2 |
|------------------------------------------+-----------------|
| 25-pin parallel port - external | CN3 |
|------------------------------------------+-----------------|
| 2-pin connector - drive active LED | CN5 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|--------------------------------+----------+----------------|
| IOCHRDY signal disabled | J2 | open |
|--------------------------------+----------+----------------|
| IOCHRDY signal enabled | J2 | closed |
|--------------------------------+----------+----------------|
| Floppy transfer rate is 300 | J3 | closed |
| KB/s | | |
|--------------------------------+----------+----------------|
| Floppy transfer rate is 250 | J3 | open |
| KB/s | | |
|--------------------------------+----------+----------------|
| Floppy drive interface enabled | J4 | closed |
|--------------------------------+----------+----------------|
| Floppy drive interface | J4 | open |
| disabled | | |
|--------------------------------+----------+----------------|
| Parallel port address is 278h | J6 | pins 1 & 2 |
| | | closed |
|--------------------------------+----------+----------------|
| Parallel port address is 378h | J6 | pins 2 & 3 |
| | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS CONTINUED |
|------------------------------------------------------------|
| Function | Location | Setting |
|-------------------------------+----------+-----------------|
| Serial Port I address is 3E8h | J7 | pins 1 & 2 |
| | | closed |
|-------------------------------+----------+-----------------|
| Serial Port I address is 3F8h | J7 | pins 2 & 3 |
| | | closed |
|-------------------------------+----------+-----------------|
| Serial Port I disabled | J7 | open |
|-------------------------------+----------+-----------------|
| Serial Port 2 address is 2E8h | J8 | pins 1 & 2 |
| | | closed |
|-------------------------------+----------+-----------------|
| Serial Port 2 address is 2F8h | J8 | pins 2 & 3 |
| | | closed |
|-------------------------------+----------+-----------------|
| Serial Port 2 disabled | J8 | open |
|-------------------------------+----------+-----------------|
| IDE(AT) interface enabled | J9 | pins 1 & 2 |
| | | closed |
|-------------------------------+----------+-----------------|
| IDE(AT) interface disabled | J9 | pins 2 & 3 |
| | | closed |
|-------------------------------+----------+-----------------|
| Parallel port IRQ 7 select | J10 | pins 2 & 3 |
| | | closed |
|-------------------------------+----------+-----------------|
| Parallel port IRQ 5 select | J10 | pins 1 & 2 |
| | | closed |
+------------------------------------------------------------+