Boca Systems Complete IDE Series, Manual

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These IRQs are set using the Serial A
and Serial B jumpers on J8. Jumper
the appropriate pins.
Setting Jumpers
4.1 Changing the Default Jumper Configurations
Locate the jumper blocks labelled J6 and J8 (on the left side of the
board with the bracket on your right) which consists of a 2x12 and 2x9
matrix, respectively.
Configuring the LPT Ports
The two pins beside PAR ENA must be jumpered. Connecting the two
pins beside PAR 378 configures the parallel port for an LPT1 at 0378h/
IRQ 5 or IRQ7. If you have an existing LPT1, position the jumper over
the pins beside PAR 278 for an LPT2 at I/O base address 0278h/IRQ5
or IRQ7. If the parallel port is to be DISABLED, the two pins beside
PAR DIS
must be jumpered. Set the IRQ for this port by jumpering the
appropriate two pins on J6 (PAR IRQ7/PAR IRQ9).
Configuring the COM Ports
The two pins beside SERA ENA and/or SERA B ENA must be
jumpered. The COM port jumpers for Serial A are labelled COM1 and
COM3. For Serial B, they are labelled COM2 and COM4. To set the
COM ports, simply move the jumper to the pins beside the
appropriate COM designation. COM port and IRQ assignments are as
shown below. If serial port A and/or B is to be DISABLED, the two
pins beside SER A DIS or SER B DIS must be jumpered.
COM Port IRQ
1 4 or 7
2 3 or 5
3 4 or 7
4 3 or 5