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 |