DTK COMPUTERS, INC.
PTM-1260B
|
Processor |
80286 |
|
Processor Speed |
12MHz |
|
Chip Set |
VLSI |
|
Max. Onboard DRAM |
1MB |
|
Cache |
None |
|
BIOS |
DTK |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, hard drive interface, parallel port, serial ports (2), video port |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Hard drive 1 data cable connector |
CN1 |
Parallel port |
CN9 |
|
Hard drive 1 data cable connector |
CN2 |
Power LED & keylock |
JP1 |
|
Hard drive interface |
CN3 |
Speaker |
JP3 |
|
Floppy drive interface |
CN4 |
Turbo LED |
JP4 |
|
Serial port 2 |
CN5 |
Turbo switch |
JP5 |
|
Video port |
CN7 |
IDE interface LED |
JP12 |
|
Serial port 1 |
CN8 |
External battery |
JP20 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Factory configured - do not alter |
JP2 |
N/A |
|
|
Zero wait state enabled |
JP8 |
Closed |
|
One wait state enabled |
JP8 |
Open | |
|
|
Primary hard drive address is 1F0h - 1F7h |
JP13 |
pins 2 & 3 closed |
|
Secondary hard drive address is 170h - 177h |
JP13 |
pins 1 & 2 closed | |
|
|
Primary floppy drive address is 3F0h - 3F7h |
JP13 |
pins 5 & 6 closed |
|
Secondary floppy drive address is 370h - 37Fh |
JP13 |
pins 4 & 5 closed | |
|
|
BIOS type select 32KB |
JP14 |
Open |
|
BIOS type select 64KB |
JP14 |
Closed | |
|
|
Factory configured - do not alter |
JP15 |
N/A |
|
|
Monochrome display primary |
JP22 |
Open |
|
CGA display primary |
JP22 |
Closed | |
|
FLOPPY DRIVE CONFIGURATION | ||||
|
Drive |
JP16 |
JP17 |
JP18 | |
|
Enabled |
Closed |
Closed |
Closed | |
|
Disabled |
Open |
Open |
Open | |
|
PRIMARY SERIAL PORT CONFIGURATION | ||
|
Port 1 (CN8) |
JP24 |
JP26 |
|
COM1 |
Closed |
Closed |
|
COM3 |
Open |
Open |
|
Disabled |
Closed |
Open |
|
Disabled |
Open |
Closed |
|
SECONDARY SERIAL PORT CONFIGURATION | ||
|
Port 2 (CN5) |
JP25 |
JP27 |
|
COM2 |
Closed |
Closed |
|
COM4 |
Open |
Open |
|
Disabled |
Open |
Closed |
|
Disabled |
Closed |
Open |
|
PARALLEL PORT CONFIGURATION | |||
|
LPT |
JP19 |
JP23 |
JP28 |
|
LPT1 |
pins 1 & 2 closed |
Closed |
Closed |
|
LPT2 |
pins 2 & 3 closed |
Open |
Open |
|
Disabled |
N/A |
Open |
Closed |
|
Disabled |
N/A |
Closed |
Open |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Parity 0 |
Bank 1 |
Parity 1 |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
|
640KB |
(4) 44256 |
(2) 41256 |
(4) 4464 |
(2) 4164 |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
|
Note:The exact locations of bank 0 and bank 1 are unknown. | ||||
|
DRAM JUMPER CONFIGURATION | ||
|
Size |
JP9 |
JP10 |
|
512KB |
Closed |
Closed |
|
640KB |
Open |
Closed |
|
1MB |
Open |
Open |