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# BASE SYSTEMS, INC.
BT 1000
Processor 80286
Processor Speed 10MHz
Chip Set Everex
Max. Onboard DRAM 1MB
Cache None
BIOS AMI
Dimensions 355mm x 304mm
I/O Options Serial ports (2), parallel port
NPU Options 80287
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Speaker | J2 | Turbo LED | J12 pins |
| | | | 1 & 2 |
|-------------------+----------+------------------+----------|
| Power LED & | J3 | Reset switch | J12 pin |
| keylock | | | 3 |
|-------------------+----------+------------------+----------|
| Serial port 2 | J7 | Ground | J12 pin |
| | | | 4 |
|-------------------+----------+------------------+----------|
| Serial port 2 | J9 | Turbo switch | J12 pin |
| | | | 5 |
|-------------------+----------+------------------+----------|
| Parallel port | J8 | External battery | W15 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | DRAM speed select 0 wait | W1/5 | On |
| | states | | |
|---+---------------------------+---------------+------------|
| | DRAM synchronous with | W1/5 | Off |
| | 16-bit access cycle wait | | |
| | state | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W1/6 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Monitor type select color | W3 | Closed |
|---+---------------------------+---------------+------------|
| | Monitor type select | W3 | Open |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| » | 8-bit access cycle speed | W7 | pins 1 & 2 |
| | select 4 wait states | | closed |
|---+---------------------------+---------------+------------|
| | 8-bit access cycle speed | W7 | pins 3 & 4 |
| | select 5 wait states | | closed |
|---+---------------------------+---------------+------------|
| | 8-bit access cycle speed | W7 | pins 5 & 6 |
| | select 6 wait states | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W10 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W12 | pins 3 & 4 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W13 | N/A |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W16 | N/A |
| | not alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | W1/switch 7 | W1/switch 8 |
|-------+------------+-----------+-------------+-------------|
| 256KB | (18) 4164 | (18) 4164 | closed | closed |
|-------+------------+-----------+-------------+-------------|
| 512KB | (18) 41256 | NONE | closed | open |
|-------+------------+-----------+-------------+-------------|
| 640KB | (18) 41256 | (18) 4164 | open | closed |
|-------+------------+-----------+-------------+-------------|
| 1MB | (18) 41256 | (18) | open | open |
| | | 41256 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | W8 | W11 |
|------------------+--------------------+--------------------|
| 8MHz | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 10MHz | pins 1 & 2 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| Port | IRQ | Address | W4/1 | W4/2 | W4/3 | W4/4 |
|----------+-------+-----------+-------+-------+------+------|
| Disabled | NONE | NONE | Off | Off | Off | Off |
|----------+-------+-----------+-------+-------+------+------|
| LPT1 | IRQ7 | 378H-37FH | On | Off | On | Off |
|----------+-------+-----------+-------+-------+------+------|
| LPT2 | IRQ5 | 278H-27FH | On | On | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 CONFIGURATION |
|------------------------------------------------------------|
| Port | W14 |
|----------------------------+-------------------------------|
| COM1 | pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| COM3 | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Disabled | pins 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 CONFIGURATION |
|------------------------------------------------------------|
| Port | W14 |
|----------------------------+-------------------------------|
| COM2 | pins 5 & 6, 7 & 8 closed |
|----------------------------+-------------------------------|
| COM4 | pins 5 & 6 closed |
|----------------------------+-------------------------------|
| Disabled | pins 7 & 8 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | W8 | W11 |
|------------------+--------------------+--------------------|
| 8MHz | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 10MHz | pins 1 & 2 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS CONFIGURATION |
|------------------------------------------------------------|
| Size | W1/1 | W1/2 | W1/3 | W1/4 |
|------------+-----------+-----------+-----------+-----------|
| 27128 | On | On | Off | Off |
|------------+-----------+-----------+-----------+-----------|
| 27256 | Off | Off | On | On |
+------------------------------------------------------------+