UNIDENTIFIED
I/O PLUS
Card Type | Multi I/O card |
Chip Set | Unidentified |
Maximum Onboard Memory | Unidentified |
I/O Options | Serial ports (2), Parallel port, Apple II game port (2), PC game port |
Data Bus | 8-bit ISA |
Card Size | Half length, half height |
CONNECTIONS | |||
Function | Label | Function | Label |
Serial port 1 | J1 | Apple II game port 1 | J5 |
Serial port 2 (DTE configuration) | J2 | Apple II game port 2 | J6 |
Serial port 2 (DCE configuration) | J3 | PC game port | J7 |
Parallel port | J4 |
USER CONFIGURABLE SETTINGS | ||
Function | Label | Position |
Game port enabled | JP2/G | Closed |
Game port disabled | JP2/G | Open |
PARALLEL PORT ADDRESS SELECTION | ||
Setting | Label | Position |
LPT1 enabled | JP2/P1 | Closed |
LPT1 disabled | JP2/P1 | Open |
LPT 2 enabled | JP2/P2 | Closed |
LPT 2 disabled | JP2/P2 | Open |
SERIAL PORT 1 ADDRESS SELECTION | ||
Setting | Label | Position |
COM1 enabled | JP2/C1 | Closed |
COM1 disabled | JP2/C1 | Open |
SERIAL PORT 1 INTERRUPT SELECTION | ||
IRQ | Label | Position |
IRQ4 enabled | JP1/4 | Closed |
IRQ4 disabled | JP1/4 | Open |
SERIAL PORT 2 SETTINGS (S - OPTION) | ||
IRQ | Label | Position |
IRQ3 enabled | JP1/3S | Closed |
IRQ3 disabled | JP1/3S | Open |
COM2 enabled | JP2/S2 | Closed |
COM2 disabled | JP2/S2 | Open |
Note: These options are only used when the board was received as an option S. |
PARALLEL PORT INTERRUPT SELECTION | ||
IRQ | Label | Position |
IRQ7 enabled | JP1/7 | Closed |
IRQ7 disabled | JP1/7 | Open |
Note: LPT is only on Rev. D and up boards. |
MISCELLANEOUS TECHNICAL NOTES |
Note: To use the Apple II joystick(s) IC 746505 must be installed at U1. This IC is not required when using an IBM-type joystick. |