J-MARK COMPUTER CORPORATION
JET-286V
|
Processor |
80286 |
|
Processor Speed |
16/20MHz |
|
Chip Set |
VLSI SCAMP |
|
Max. Onboard DRAM |
16MB |
|
Cache |
None |
|
BIOS |
Award |
|
Dimensions |
254mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J5 |
Power LED & keylock |
J10 |
|
External battery |
J8 |
Turbo LED |
J13 |
|
Turbo switch |
J7 |
Reset switch |
J15 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
NPU mode select synchronous with CPU |
JP2 |
pins 1 & 2 closed | |
|
NPU mode select synchronous with oscillator installed at OSC1 |
JP2 |
pins 2 & 3 closed | |
|
Battery type select internal |
JP7 |
pins 2 & 3 closed | |
|
Battery type select external |
JP7 |
pins 1 & 2 closed | |
|
Monitor type select color |
JP11 |
Closed | |
|
Monitor type select monochrome |
JP11 |
Open | |
|
DRAM CONFIGURATION | ||||||
|
Size |
Bank 0 |
P-0 |
Bank 1 |
P-1 |
Bank 2 |
Bank 3 |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
|
512KB |
NONE |
NONE |
NONE |
NONE |
(2) 256K x 9 |
NONE |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
|
1MB |
NONE |
NONE |
NONE |
NONE |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
NONE |
NONE |
NONE |
NONE |
(1) 1M x 9 |
NONE |
|
4MB |
NONE |
NONE |
NONE |
NONE |
(1) 1M x 9 |
(1) 1M x 9 |
|
DRAM JUMPER CONFIGURATION | ||
|
Size |
JP3 |
JP4 |
|
512KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
512KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
1MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
1MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
2MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
2MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
4MB |
pins 1 & 2 closed |
pins 1 & 2 closed |