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# ARCO COMPUTER PRODUCTS
ACD-ROM
Data Bus 32-bit VESA Local Bus
Card Size Three-quarter length, half-height card
Hard Drives Four IDE (AT) drives
supported
Floppy drives None
supported
RAID levels Two 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB drives
supported
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location | Function | Location |
|-------------------+----------+------------------+----------|
| 40-pin primary | J1 | 25-pin parallel | P2 |
| IDE(AT) connector | | port - external | |
|-------------------+----------+------------------+----------|
| 40-pin secondary | J2 | 34-pin cable | P3 |
| IDE(AT) connector | | connector - | |
| | | floppy drive | |
|-------------------+----------+------------------+----------|
| 2-pin connector - | LED1 | 9-pin serial | P4 |
| primary drive | | port 1 - | |
| active LED | | external | |
|-------------------+----------+------------------+----------|
| 2-pin connector - | LED2 | 10-pin serial | P5 |
| mirror drive | | port 1 - | |
| active LED | | internal | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+----------+------------|
| » | IDE(AT) interface enabled | JP1/pins | Open |
| | | 5 & 6 | |
|---+--------------------------------+----------+------------|
| | IDE(AT) interface disabled | JP1/pins | Closed |
| | | 5 & 6 | |
|---+--------------------------------+----------+------------|
| » | IDE(AT) IRQ 14 select | JP2 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | IDE(AT) IRQ 15 select | JP2 | Pins 3 & 4 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Parallel port IRQ 7 select | JP5 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Parallel port IRQ 5 select | JP5 | Pins 3 & 4 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Factory configured - do not | JP10 | Reserved |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IRQ AND SERIAL PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| Port | IRQ | JP6/pins 1 & 2 | JP6/pins 3 & 4 |
|---------------+----------+----------------+----------------|
| COM1 (3F8h) | 4 | Closed | Open |
|---------------+----------+----------------+----------------|
| COM2 (2F8h) | 3 | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS SEGMENT ADDRESS CONFIGURATION |
|------------------------------------------------------------|
| Segment Address | JP3/1 | JP3/2 | JP3/3 | JP3/4 |
|-----------------+----------+----------+----------+---------|
| » | C800h-CBFFh | Closed | Open | Closed | Closed |
|---+-------------+----------+----------+----------+---------|
| | CC00h-CEFFh | Closed | Open | Open | Closed |
|---+-------------+----------+----------+----------+---------|
| | D000h-D3FFh | Open | Closed | Closed | Closed |
|---+-------------+----------+----------+----------+---------|
| | D400h-D7EEh | Open | Closed | Open | Closed |
|---+-------------+----------+----------+----------+---------|
| | D800h-DBFFh | Open | Open | Closed | Closed |
|---+-------------+----------+----------+----------+---------|
| | DC00h-DEFFh | Open | Open | Open | Closed |
|---+-------------+----------+----------+----------+---------|
| | Disabled | Open | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERNAL REGISTER SELECTION |
|------------------------------------------------------------|
| Setting | JP1/pins 1 & 2 | JP1/pins 3 & 4 |
|--------------------------+----------------+----------------|
| Appian Chip AD4, AD8, | Closed | Open |
| ADC use internal | | |
| register | | |
|--------------------------+----------------+----------------|
| Appian Chip Dr, B8, BC | Open | Open |
| use | | |
| | | |
| internal register | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP4 |
|----------------------+-------------------------------------|
| | 1 | Pins 2 & 4, 3 & 5 closed |
|---+------------------+-------------------------------------|
| | 3 | Pins 1 & 3, 4 & 6 closed |
|---+------------------+-------------------------------------|
| » | None | Open |
+------------------------------------------------------------+