DATA BUSINESS SYSTEMS
KEYBOARD PC
Processor | 80286/80386SX |
Processor Speed | 12/16/20/25MHz |
Chip Set | C & T |
Max. Onboard DRAM | 16MB |
Cache | 32KB (80386SX model only) |
BIOS | AMI |
Dimensions | 236mm x 205mm |
I/O Options | Bus mouse port, external keyboard connector, floppy interface, game port, IDE interface, parallel ports (3), serial ports (2), VGA port, Video port (TTL) |
NPU Options | 80287/80387SX |
VIDEO SWITCH SETTINGS | ||||||
Function | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 | JP2 |
Monochrome | Closed | Open | Closed | Open | Open | pins 1 & 2 closed |
CGA | Open | Closed | Open | Closed | Closed | pins 2 & 3 closed |
EGA | Open | Closed | Closed | Open | Open | pins 1 & 2 closed |
Notes:For VGA mode, no switch configuration is necessary. |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
DC power | CN1 | Hard & floppy drive power | CN15 |
Video port (TTL) | CN2 | Internal IDE drive | CN16 |
VGA port | CN3 | External IDE drive | CN17 |
Parallel port (LPT1) | CN4 | 16-bit ISA expansion slot (2/3 size) | ISA1 |
Parallel port (LPT2) | CN5 | Speaker | J1 |
Parallel port (LPT3) | CN6 | Integrated keyboard | J2 |
Serial port (COM1) | CN7 | Turbo LED | J3 |
Serial port (COM2) | CN8 | IDE interface LED | J4 |
Bus mouse port | CN9 | Power LED & keylock | J5 |
Auxiliary keyboard | CN10 | External battery | J6 |
Game port | CN12 | Power switch | J7 |
Internal floppy drive | CN13 | Reset switch | J8 |
External floppy drive | CN14 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
Volume select maximum | CN11 | max. clockwise | |
Volume select minimum | CN11 | max. counter-clockwise | |
» | CMOS memory normal operation | JP1 | pins 1 & 2 closed |
CMOS memory clear | JP1 | pins 2 & 3 closed | |
» | Memory select 0 wait states | JP3 | Open |
Memory select 1 wait state | JP3 | Closed | |
» | LPT2 (CN5) enabled | SW1/1 | On |
LPT2 (CN5) disabled | SW1/1 | Off | |
» | LPT3 (CN6) enabled | SW1/2 | On |
LPT3 (CN6) disabled | SW1/2 | Off | |
» | Game port (CN12) enabled | SW1/3 | On |
Game port (CN12) disabled | SW1/3 | Off |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
512KB | (2) 256K x 9 | NONE |
1MB | (2) 256K x 9 | (2) 256K x 9 |
2MB | (2) 1M x 9 | NONE |
2.5MB | (2) 256K x 9 | (2) 1M x 9 |
4MB | (2) 1M x 9 | (2) 1M x 9 |
8MB | (2) 4M x 9 | NONE |
8.5MB | (2) 256K x 9 | (2) 4M x 9 |
10MB | (2) 1M x 9 | (2) 4M x 9 |
16MB | (2) 4M x 9 | (2) 4M x 9 |
CACHE CONFIGURATION | |
Size | Bank 0 |
32KB | (4) 16K x 4 |