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# ABC COMPUTER COMPANY, LTD.
16 BIT MULTI-I/O
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 16-bit, ISA |
|---------------+--------------------------------------------|
| Size: | Half-length, full-height card |
|---------------+--------------------------------------------|
| Hard drive | Two IDE (AT) Interface drives |
| supported: | |
|---------------+--------------------------------------------|
| Floppy drives | Four 360KB, 720KB, 1.2MB, or 1.44MB drives |
| supported: | |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------------------------+----------|
| 34-pin control cable connector - floppy drive | J1 |
|-------------------------------------------------+----------|
| 34-pin control cable connector - floppy | J2 |
| drive/tape drive | |
|-------------------------------------------------+----------|
| 2-pin connector - Drive active LED | J3 |
|-------------------------------------------------+----------|
| 40-pin IDE(AT) Interface connector | J4 |
|-------------------------------------------------+----------|
| 10-pin serial port (COM1/3) - internal | J5 |
|-------------------------------------------------+----------|
| 10-pin serial port (COM2/4) - internal | J6 |
|-------------------------------------------------+----------|
| 15-pin game port - external | J7 |
|-------------------------------------------------+----------|
| 25-pin parallel port (LPT1/2) - external | J8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|---------------------------------------+----------+---------|
| » | Disk change signal is set to | JP1 | closed |
| | normal operation | | |
|---+-----------------------------------+----------+---------|
| | Disk change signal is set to | JP1 | open |
| | diagnostic mode | | |
|---+-----------------------------------+----------+---------|
| » | I/O Channel Ready signal disabled | JP2 | closed |
|---+-----------------------------------+----------+---------|
| | I/O Channel Ready signal enabled | JP2 | open |
|---+-----------------------------------+----------+---------|
| » | Game Port (J7) enabled | JP10 | closed |
|---+-----------------------------------+----------+---------|
| | Game Port (J7) disabled | JP10 | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT (J8) CONFIGURATION |
|------------------------------------------------------------|
| LPT/IRQ | JP3 | JP6 | JP9 |
|-------------------+----------+---------+-------------------|
| » | LPT1/IRQ7 | on | off | pins 2 & 3 closed |
|---+---------------+----------+---------+-------------------|
| | LPT2/IRQ5 | off | on | pins 1 & 2 closed |
|---+---------------+----------+---------+-------------------|
| | Disabled | off | off | n/a |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 (J6) CONFIGURATION |
|------------------------------------------------------------|
| COM/IRQ | JP4 | JP7 |
|-----------------------+---------------+--------------------|
| » | COM2/IRQ3 | closed | pins 1 & 2 closed |
|---+-------------------+---------------+--------------------|
| | COM4/IRQ5 | open | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 (J5) CONFIGURATION |
|------------------------------------------------------------|
| COM/IRQ | JP5 | JP8 |
|-----------------------+---------------+--------------------|
| » | COM1/IRQ4 | closed | pins 1 & 2 closed |
|---+-------------------+---------------+--------------------|
| | COM3/IRQ9 | open | pins 2 & 3 closed |
+------------------------------------------------------------+