BOCA RESEARCH, INC. =================== IO 2 BY 4 Card Type Multi I/O card Chipset/Controller 16C550 I/O Options Parallel ports (2), serial ports (4) Maximum DRAM N/A +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | I/O connector 1 | CN1 | I/O connector 2 | CN2 | +------------------------------------------------------------+ +------------------------------------------------------------+ | SERIAL PORT CONFIGURATION | |------------------------------------------------------------| | Port | Status | J3/A | J3/B | J3/C | J3/D | |--------+----------+----------+---------+---------+---------| | 1 | Enabled | Closed | N/A | N/A | N/A | |--------+----------+----------+---------+---------+---------| | 1 | Disabled | Open | N/A | N/A | N/A | |--------+----------+----------+---------+---------+---------| | 2 | Enabled | N/A | Closed | N/A | N/A | |--------+----------+----------+---------+---------+---------| | 2 | Disabled | N/A | Open | N/A | N/A | |--------+----------+----------+---------+---------+---------| | 3 | Enabled | N/A | N/A | Closed | N/A | |--------+----------+----------+---------+---------+---------| | 3 | Disabled | N/A | N/A | Open | N/A | |--------+----------+----------+---------+---------+---------| | 4 | Enabled | N/A | N/A | N/A | Closed | |--------+----------+----------+---------+---------+---------| | 4 | Disabled | N/A | N/A | N/A | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | PRIMARY SERIAL PORT INTERRUPT SELECT | |------------------------------------------------------------| | IRQ | J4/Q | J4/R | J4/S | J4/T | |-------------+-----------+-----------+-----------+----------| |>> | IRQ4 | Open | Closed | Open | Open | |---+---------+-----------+-----------+-----------+----------| | | IRQ2 | Open | Open | Open | Closed | |---+---------+-----------+-----------+-----------+----------| | | IRQ3 | Open | Open | Closed | Open | |---+---------+-----------+-----------+-----------+----------| | | IRQ5 | Closed | Open | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECOND SERIAL PORT INTERRUPT SELECT | |------------------------------------------------------------| | IRQ | J4/M | J4/N | J4/O | J4/P | |-------------+-----------+-----------+-----------+----------| |>> | IRQ3 | Open | Open | Closed | Open | |---+---------+-----------+-----------+-----------+----------| | | IRQ2 | Open | Open | Open | Closed | |---+---------+-----------+-----------+-----------+----------| | | IRQ4 | Open | Closed | Open | Open | |---+---------+-----------+-----------+-----------+----------| | | IRQ5 | Closed | Open | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | THIRD SERIAL PORT INTERRUPT SELECT | |------------------------------------------------------------| | IRQ | J4/I | J4/J | J4/K | J4/L | |----------+------------+------------+-----------+-----------| | IRQ2 | Open | Open | Open | Closed | |----------+------------+------------+-----------+-----------| | IRQ3 | Open | Open | Closed | Open | |----------+------------+------------+-----------+-----------| | IRQ4 | Open | Closed | Open | Open | |----------+------------+------------+-----------+-----------| | IRQ5 | Closed | Open | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | FOURTH SERIAL PORT INTERRUPT SELECT | |------------------------------------------------------------| | IRQ | J4/E | J4/F | J4/G | J4/H | |----------+------------+------------+-----------+-----------| | IRQ2 | Open | Open | Open | Closed | |----------+------------+------------+-----------+-----------| | IRQ3 | Open | Open | Closed | Open | |----------+------------+------------+-----------+-----------| | IRQ4 | Open | Closed | Open | Open | |----------+------------+------------+-----------+-----------| | IRQ5 | Closed | Open | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT CONFIGURATION | |------------------------------------------------------------| | Port 1 | J3/E | Port 2 | J3/F | |-------------------+------------+--------------+------------| |>> | Enabled | Closed | Enabled | Closed | |---+---------------+------------+--------------+------------| | | Disabled | Open | Disabled | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARALLEL PORT INTERRUPT SELECT | |------------------------------------------------------------| | Port 1 | J4/C | J4/D | Port 2 | J4/A | J4/B | |-----------+---------+---------+---------+---------+--------| |>> | IRQ7 | Closed | Open | IRQ5 | Open | Closed | |---+-------+---------+---------+---------+---------+--------| | | IRQ5 | Open | Closed | IRQ7 | Closed | Open | +------------------------------------------------------------+