DTK COMPUTER, INC.
PTM-1230C
|
Processor |
80286 |
|
Processor Speed |
12MHz |
|
Chip Set |
VLSI/VTI |
|
Max. Onboard DRAM |
1MB |
|
Cache |
None |
|
BIOS |
DTK |
|
Dimensions |
341.6mm x 204.2mm |
|
I/O Options |
Parallel port, serial ports (2) |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
External battery |
J12 |
|
Reset switch |
J2 |
Serial port (COM2) |
CN1 |
|
Speaker |
J3 |
Serial port (COM1) |
CN2 |
|
Turbo LED |
J4 |
Parallel port |
CN3 |
|
Turbo switch |
J5 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
DRAM speed select 0 wait states |
J6 |
Closed | |
|
DRAM speed select 1 wait state |
J6 |
Open | |
|
Factory configured - do not alter |
J7 |
Unknown | |
|
Factory configured - do not alter |
J10 |
N/A | |
|
Monitor type select color |
J11 |
Closed | |
|
Monitor type select monochrome |
J11 |
Open | |
|
BIOS type select 27256 |
J22 |
Closed | |
|
BIOS type select 27128 |
J22 |
Open | |
|
CMOS memory normal operation |
JP1 |
Closed | |
|
CMOS memory clear |
JP1 |
Open | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(18) 41256 |
NONE |
|
640KB |
(18) 41256 |
(18) 4164 |
|
1MB |
(18) 41256 |
(18) 41256 |
|
DRAM JUMPER CONFIGURATION | ||
|
Size |
J8 |
J9 |
|
512KB |
Closed |
Closed |
|
640KB |
Closed |
Open |
|
1MB |
Open |
Closed |
|
PARALLEL PORT (CN3) CONFIGURATION | |||
|
Port |
J13 |
J14 |
J19 |
|
LPT1 |
Closed |
Closed |
pins 1 & 2 closed |
|
LPT2 |
Open |
Open |
pins 2 & 3 closed |
|
Disabled |
Open |
Closed |
N/A |
|
Disabled |
Closed |
Open |
N/A |
|
SERIAL PORT CONFIGURATION | |||||
|
Serial Port 1 (CN2) |
J15 |
J16 |
Serial Port 2 (CN1) |
J17 |
J18 |
|
COM1 |
Closed |
Closed |
COM2 |
Closed |
Closed |
|
COM3 |
Open |
Open |
COM4 |
Open |
Open |
|
Disabled |
Closed |
Open |
Disabled |
Closed |
Open |
|
Disabled |
Open |
Closed |
Disabled |
Open |
Closed |