TWINHEAD INTERNATIONAL CORPORATION
NETSTATION
|
Processor |
80286/80386SX |
|
Processor Speed |
12/16/20MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
5MB |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port, riser slot |
|
NPU Options |
80287/80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
VGA port |
CN1 |
IDE interface |
CN5 |
|
Parallel port |
CN2 |
Floppy drive interface |
CN6 |
|
Serial port 1 |
CN3 |
External battery |
J19 |
|
Serial port 2 |
CN4 |
Riser slot |
SL1 |
|
Note: Jumper J19 may not be present on all boards. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
|
Monitor type select color |
J18 |
pins 1 & 2 closed |
|
Monitor type select monochrome |
J18 |
pins 2 & 3 closed | |
|
|
On board video enabled |
SW1/1 |
On |
|
On board video disabled |
SW1/1 |
Off | |
|
|
Monitor type select multi frequency monitor |
SW1/2 |
On |
|
Monitor type select standard monitor |
SW1/2 |
Off | |
|
|
Monitor type select PS/2 monitor |
SW1/3 |
On |
|
Monitor type select AT monitor |
SW1/3 |
Off | |
|
|
Parallel port enabled |
SW1/4 |
On |
|
Parallel port disabled |
SW1/4 |
Off | |
|
|
Serial port 1 enabled |
SW1/5 |
On |
|
Serial port 1 disabled |
SW1/5 |
Off | |
|
|
Serial port 2 enabled |
SW1/6 |
On |
|
Serial port 2 disabled |
SW1/6 |
Off | |
|
|
Floppy drive interface enabled |
SW1/7 |
On |
|
Floppy drive interface disabled |
SW1/7 |
Off | |
|
|
IDE interface enabled |
SW1/8 |
On |
|
IDE interface disabled |
SW1/8 |
Off | |
|
DRAM CONFIGURATION | |||||
|
Size |
Bank 0A |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
1MB |
NONE |
NONE |
NONE |
NONE |
|
3MB |
1MB |
(1) 256K x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
|
5MB |
1MB |
(1) 1M x 9 |
(1) 1M x 9 |
(1) 1M x 9 |
(1) 1M x 9 |
|
Note: Bank 0A is factory installed and is not configurable. | |||||
|
CPU SPEED CONFIGURATION | ||
|
Speed |
Oscillator speed |
JP1 |
|
80286-12MHz |
32MHz |
pins 1 & 2 closed |
|
80286-12MHz |
24MHz |
pins 2 & 3 closed |
|
80386SX-16MHz |
32MHz |
pins 1 & 2 closed |
|
80386SX-16MHz |
N/A |
pins 2 & 3 closed |
|
80386SX-20MHz |
32MHz |
pins 1 & 2 closed |
|
80386SX-20MHz |
40MHz |
pins 2 & 3 closed |
|
VIDEO MEMORY CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
256KB |
(8) 4164 |
NONE |
|
512KB |
(8) 4164 |
(8) 4164 |
|
Note: Bank 0 is factory installed and is not configurable. This memory may not be present on all boards. | ||