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# BOCA RESEARCH, INC.
DELL V486DX/XX REV. 1 I/O CARD
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 16-bit, ISA |
|-------------------+----------------------------------------|
| Size: | Half-length, full-height card |
|-------------------+----------------------------------------|
| Hard drive | Two IDE (AT) Interface drives |
| supported: | |
|-------------------+----------------------------------------|
| Floppy drives | Two 360KB, 720KB, 1.2MB, or 1.44MB |
| supported: | drives |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-----------------------------------------------+------------|
| 25-pin parallel port | CN1 |
|-----------------------------------------------+------------|
| 10-pin serial port - external | CN2 |
|-----------------------------------------------+------------|
| 10-pin serial port - internal | J3 |
|-----------------------------------------------+------------|
| 40-pin IDE(AT) interface connector | J4 |
|-----------------------------------------------+------------|
| 34-pin control cable connector - floppy drive | J5 |
|-----------------------------------------------+------------|
| 4-pin connector - drive active LED | J6 |
|-----------------------------------------------+------------|
| Game port | J8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|----------------------------------+----------+--------------|
| » | IDE(AT) port (J2) enabled | J7 | pins 14 & 16 |
| | | | closed |
|---+------------------------------+----------+--------------|
| | IDE(AT) port (J2) disabled | J7 | pins 16 & 18 |
| | | | closed |
|---+------------------------------+----------+--------------|
| » | Control cable connector - | J7 | pins 20 & 22 |
| | floppy drive (J1) enabled | | closed |
|---+------------------------------+----------+--------------|
| | Control cable connector - | J7 | pins 22 & 24 |
| | floppy drive (J1) disabled | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 (CN2) CONFIGURATION |
|------------------------------------------------------------|
| COM/Address | J7 |
|----------------------------+-------------------------------|
| » | COM1/3F8h | pins 1 & 3, 7 & 9 closed |
|---+------------------------+-------------------------------|
| | COM3/3E8h | pins 1 & 3, 9 & 11 closed |
|---+------------------------+-------------------------------|
| | Disabled | pins 3 & 5 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 (J3) CONFIGURATION |
|------------------------------------------------------------|
| COM/Address | J7 |
|----------------------------+-------------------------------|
| » | COM2/2F8h | pins 2 & 4, 8 & 10 closed |
|---+------------------------+-------------------------------|
| | COM4/2E8h | pins 2 & 4, 10 & 12 closed |
|---+------------------------+-------------------------------|
| | Disabled | pins 4 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT (CN1) CONFIGURATION |
|------------------------------------------------------------|
| LPT/Address | J7 |
|----------------------------+-------------------------------|
| » | LPT1/278h | pins 13 & 15, 19 & 21 closed |
|---+------------------------+-------------------------------|
| | LPT2/378h | pins 13 & 15, 21 & 23 closed |
|---+------------------------+-------------------------------|
| | Disabled | pins 15 & 17 closed |
+------------------------------------------------------------+