DTK COMPUTER, INC.
PTM-1261C/1661C
|
Processor |
80286 |
|
Processor Speed |
12/16MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
5MB |
|
Cache |
None |
|
BIOS |
DTK |
|
Dimensions |
333mm x 222mm |
|
I/O Options |
Floppy drive interface, game port, IDE interface, parallel port, PS/2 mouse interface, serial ports (2) |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
External battery |
J9 |
|
Turbo LED |
J2 |
Serial port 2 |
J10 |
|
Reset switch |
J3 |
Serial port 1 |
J11 |
|
Turbo switch |
J4 |
Parallel port |
J12 |
|
IDE interface |
J5 |
PS/2 mouse interface |
J13 |
|
Floppy drive interface |
J6 |
IDE interface LED |
W12 |
|
Game port |
J7 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
IDE type select new standard |
W11 |
pins 2 & 3 closed | |
|
IDE type select original standard (i.e., CP-342) |
W11 |
pins 1 & 2 closed | |
|
Floppy drive interface (J6) enabled |
W14 |
Closed | |
|
Floppy drive interface (J6) disabled |
W14 |
Open | |
|
IDE interface enabled |
W21 |
Closed | |
|
IDE interface disabled |
W21 |
Open | |
|
Game port enabled |
W22 |
Closed | |
|
Game port disabled |
W22 |
Open | |
|
Monitor type select monochrome |
W23 |
Open | |
|
Monitor type select color |
W23 |
Closed | |
|
Battery select internal |
W24 |
pins 2 & 3 closed | |
|
Battery select external |
W24 |
pins 1 & 2 closed | |
|
Power good signal detect from power supply |
W25 |
pins 2 & 3 closed | |
|
Power good signal detect from board |
W25 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION | ||||||
|
Size |
Bank 0 |
P-0 |
Bank 1 |
P-1 |
Bank 2 |
Bank 3 |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
|
640KB |
(4) 44256 |
(2) 41256 |
(2) 64K x 9 |
NONE |
NONE |
NONE |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
|
1.5MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 256K x 9 |
NONE |
|
2MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
NONE |
NONE |
NONE |
NONE |
(2) 1M x 9 |
NONE |
|
3MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 1M x 9 |
NONE |
|
4MB |
NONE |
NONE |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
|
5MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
(2) 1M x 9 |
(2) 1M x 9 |
|
DRAM JUMPER CONFIGURATION | ||||||
|
Size |
W1 |
W2 |
W3 |
W4 |
W5 |
W6 |
|
512KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
640KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
1MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
1.5MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
2MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
2MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
3MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
4MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
5MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
Notes:Pins designated should be in the closed position. | ||||||
|
PARALLEL PORT CONFIGURATION | |||
|
Setting |
W13 |
W19 |
W20 |
|
LPT1 |
pins 1 & 2 closed |
Closed |
Closed |
|
LPT2 |
pins 2 & 3 closed |
Open |
Open |
|
Disabled |
N/A |
Open |
Closed |
|
Disabled |
N/A |
Closed |
Open |
|
SERIAL PORT 1 CONFIGURATION | |||
|
Setting |
W13 |
W15 |
W16 |
|
COM1 |
pins 1 & 2 closed |
Closed |
Closed |
|
COM3 |
pins 2 & 3 closed |
Open |
Open |
|
Disabled |
N/A |
Open |
Closed |
|
Disabled |
N/A |
Closed |
Open |
|
SERIAL PORT 2 CONFIGURATION | |||
|
Setting |
W13 |
W17 |
W18 |
|
COM2 |
pins 1 & 2 closed |
Closed |
Closed |
|
COM4 |
pins 2 & 3 closed |
Open |
Open |
|
Disabled |
N/A |
Open |
Closed |
|
Disabled |
N/A |
Closed |
Open |