ABC COMPUTER COMPANY, LTD.
16 BIT MULTI-I/O
Data bus: | 16-bit, ISA |
Size: | Half-length, full-height card |
Hard drive supported: | Two IDE (AT) Interface drives |
Floppy drives supported: | Four 360KB, 720KB, 1.2MB, or 1.44MB drives |

CONNECTIONS | |
Function | Location |
34-pin control cable connector - floppy drive | J1 |
34-pin control cable connector - floppy drive/tape drive | J2 |
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 normal operation | JP1 | closed |
Disk change signal is set to diagnostic mode | JP1 | open | |
| » | 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 | |