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# DTK COMPUTER, INC.
PEM-2000 (FAST ET20)
Processor 80386DX
Processor 20MHz
Speed
Chip Set VLSI
Max. Onboard 1MB
DRAM
Cache None
BIOS DTK
Dimensions 355.6mm x 304.8mm
I/O Options Parallel port, serial ports (2), 32-bit external
memory card slots (2)
NPU Options 80387
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Serial port | J10 | Reset switch | W1 |
| (COM1) | | | |
|-------------------+----------+------------------+----------|
| Serial port | J11 | External battery | W6 |
| (COM2) | | | |
|-------------------+----------+------------------+----------|
| Parallel port | J12 | Speaker | W7 |
|-------------------+----------+------------------+----------|
| 32-bit external | S1 | Power LED & | W11 |
| memory card | | keylock | |
|-------------------+----------+------------------+----------|
| 32-bit external | S2 | Turbo LED | W12 |
| memory card | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| | DRAM (32-bit) speed | W2 | Open |
| | select 1 wait state | | |
|---+---------------------------+---------------+------------|
| | DRAM (32-bit) speed | W2 | Closed |
| | select 2 wait state | | |
|---+---------------------------+---------------+------------|
| | DRAM (16-bit) speed | W3 | pins 1 & 2 |
| | select 1 wait state | | closed |
|---+---------------------------+---------------+------------|
| | DRAM (16-bit) speed | W3 | pins 2 & 3 |
| | select 2 wait state | | closed |
|---+---------------------------+---------------+------------|
| | DRAM (8-bit) speed select | W4 | pins 1 & 2 |
| | 4 wait state | | closed |
|---+---------------------------+---------------+------------|
| | DRAM (8-bit) speed select | W4 | pins 2 & 3 |
| | 5 wait state | | closed |
|---+---------------------------+---------------+------------|
| | Monitor type select | W8 | pins 1 & 2 |
| | monochrome | | closed |
|---+---------------------------+---------------+------------|
| | Monitor type select color | W8 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | CPU speed select fast | W10 | Open |
|---+---------------------------+---------------+------------|
| | CPU speed select slow | W10 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | CPU speed select | W10 | pins 2 & 3 |
| | switchable from keyboard | | closed |
|---+---------------------------+---------------+------------|
| » | Serial port enabled | SW1/1 | Open |
|---+---------------------------+---------------+------------|
| | Serial port disabled | SW1/1 | Closed |
|---+---------------------------+---------------+------------|
| » | Serial port enabled | SW1/2 | Open |
|---+---------------------------+---------------+------------|
| | Serial port disabled | SW1/2 | Closed |
|---+---------------------------+---------------+------------|
| » | LPT enabled | SW1/3 | Open |
|---+---------------------------+---------------+------------|
| | LPT disabled | SW1/3 | Closed |
|---+---------------------------+---------------+------------|
| » | Parallel port select LPT1 | SW1/4 | Open |
|---+---------------------------+---------------+------------|
| | Parallel port select LPT2 | SW1/4 | Closed |
|---+---------------------------+---------------+------------|
| » | Serial port (J10) select | SW1/5 | Closed |
| | COM1/IRQ4 | | |
|---+---------------------------+---------------+------------|
| | Serial port (J10) select | SW1/6 | Closed |
| | COM1/IRQ3 | | |
|---+---------------------------+---------------+------------|
| » | Serial port (J11) select | SW1/8 | Closed |
| | COM2/IRQ3 | | |
|---+---------------------------+---------------+------------|
| | Serial port (J11) select | SW1/7 | Closed |
| | COM2/IRQ4 | | |
|---+---------------------------+---------------+------------|
| » | Parallel port interrupt | SW1/9 | Closed |
| | select IRQ7 | | |
|---+---------------------------+---------------+------------|
| » | Parallel port interrupt | SW1/10 | Closed |
| | select IRQ7 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 1MB | (36) 41256 |
+------------------------------------------------------------+