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# ACS, INC.
ACS-1000
Processor 8088
Processor Speed 4.77/8MHz
Chip Set Unidentified
Video Chip Set None
Maximum Onboard 1MB
Memory
Maximum Video None
Memory
Cache None
BIOS Unidentified
Dimensions 305mm x 216mm
I/O Options Floppy drive interfaces (2), SASI connector,
parallel port, serial ports (2), serial bus
connector
NPU Options 8087
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Reset switch | E2 | Serial port | P7 |
|-------------------+----------+------------------+----------|
| Speaker | P2 | Parallel port | P8 |
|-------------------+----------+------------------+----------|
| Floppy drive | P3 | Reset switch | P9 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Floppy drive | P4 | SASI interface | P10 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Serial bus | P5 | External battery | P11 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Serial port | P6 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------------+-------+----------|
| » | Normal reset operation enabled | E2 | Open |
|---+-------------------------------------+-------+----------|
| | Reset controlled by power supply | E2 | Closed |
| | signal | | |
|---+-------------------------------------+-------+----------|
| » | POST normal operation | S1/1 | Off |
|---+-------------------------------------+-------+----------|
| | POST special test | S1/1 | On |
|---+-------------------------------------+-------+----------|
| » | NPU not installed | S1/2 | On |
|---+-------------------------------------+-------+----------|
| | NPU installed | S1/2 | Off |
|---+-------------------------------------+-------+----------|
| » | BIOS type select 8K/16K | S1/10 | Off |
|---+-------------------------------------+-------+----------|
| | BIOS type select 32K | S1/10 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------------+-----------+-----------+-----------+-----------|
| 64KB | 64K | None | None | None |
|------------+-----------+-----------+-----------+-----------|
| 128KB | 64K | 64K | None | None |
|------------+-----------+-----------+-----------+-----------|
| 192KB | 64K | 64K | 64K | None |
|------------+-----------+-----------+-----------+-----------|
| 256KB (A) | 64K | 64K | 64K | 64K |
|------------+-----------+-----------+-----------+-----------|
| 256KB (B) | 256K | None | None | None |
|------------+-----------+-----------+-----------+-----------|
| 512KB | 256K | 256K | None | None |
|------------+-----------+-----------+-----------+-----------|
| 640KB | 256K | 256K | 64K | 64K |
|------------+-----------+-----------+-----------+-----------|
| 1MB | 256K | 256K | 256K | 256K |
|------------------------------------------------------------|
| Note: The size of the chips are unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | S1/3 | S1/4 | S1/9 |
|---------------+--------------+--------------+--------------|
| 64KB | On | On | Off |
|---------------+--------------+--------------+--------------|
| 128KB | Off | On | Off |
|---------------+--------------+--------------+--------------|
| 192KB | On | Off | Off |
|---------------+--------------+--------------+--------------|
| 256KB (A) | Off | Off | Off |
|---------------+--------------+--------------+--------------|
| 256KB (B) | On | On | On |
|---------------+--------------+--------------+--------------|
| 512KB | Off | On | On |
|---------------+--------------+--------------+--------------|
| 640KB | Off | Off | On |
|---------------+--------------+--------------+--------------|
| 1MB | On | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | E1 |
|-------------------------------+----------------------------|
| Keyboard selectable | Pins 1 & 2 closed |
|-------------------------------+----------------------------|
| 4.77MHz | Pins 2 & 3 closed |
|-------------------------------+----------------------------|
| 8MHz | Pins 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | E3 |
|----------------------------------------+-------------------|
| » | LPT2 if another device is set as | Pins 1 & 2 closed |
| | LPT1. It is set as LPT1 if no | |
| | other device is installed. | |
|---+------------------------------------+-------------------|
| | LPT1 at all times | Pins 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT ADDRESS SELECTION (P6) |
|------------------------------------------------------------|
| Setting | E4 |
|----------------------------+-------------------------------|
| » | COM1 | Pins 1 & 2 closed |
|-----+----------------------+-------------------------------|
| | COM2 | Pins 3 & 4 closed |
|-----+----------------------+-------------------------------|
| | COM3 | Pins 5 & 6 closed |
|-----+----------------------+-------------------------------|
| | COM4 | Pins 7 & 8 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECTION (P6) |
|------------------------------------------------------------|
| IRQ | E6 |
|----------------------------+-------------------------------|
| | IRQ2 | Pins 5 & 6 closed |
|------+---------------------+-------------------------------|
| | IRQ3 | Pins 3 & 4 closed |
|------+---------------------+-------------------------------|
| » | IRQ4 | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT ADDRESS SELECTION (P7) |
|------------------------------------------------------------|
| Setting | E5 |
|----------------------------+-------------------------------|
| | COM1 | Pins 1 & 2 closed |
|-----+----------------------+-------------------------------|
| » | COM2 | Pins 3 & 4 closed |
|-----+----------------------+-------------------------------|
| | COM3 | Pins 5 & 6 closed |
|-----+----------------------+-------------------------------|
| | COM4 | Pins 7 & 8 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECTION (P7) |
|------------------------------------------------------------|
| IRQ | E7 |
|----------------------------+-------------------------------|
| | IRQ2 | Pins 5 & 6 closed |
|------+---------------------+-------------------------------|
| » | IRQ3 | Pins 3 & 4 closed |
|------+---------------------+-------------------------------|
| | IRQ4 | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MONITOR SELECTION |
|------------------------------------------------------------|
| Setting | S1/5 | S1/6 |
|------------------------+-----------------+-----------------|
| | None installed | On | On |
|---+--------------------+-----------------+-----------------|
| » | 80 x 25 color | On | Off |
|---+--------------------+-----------------+-----------------|
| | 40 x 25 color | Off | On |
|---+--------------------+-----------------+-----------------|
| | Monochrome | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOPPY DRIVE SELECTION |
|------------------------------------------------------------|
| Drives installed | S1/7 | S1/8 |
|----------------------------+---------------+---------------|
| | 1 | On | On |
|---------+------------------+---------------+---------------|
| » | 2 | Off | On |
|---------+------------------+---------------+---------------|
| | 3 | On | Off |
|---------+------------------+---------------+---------------|
| | 4 | Off | Off |
+------------------------------------------------------------+