PROMISE TECHNOLOGY, INC.
DC420
|
| |
|
Data bus: |
32-bit, VL-bus |
|
Size: |
Three/quarter-length, full-height card |
|
Hard drive supported: |
Two IDE (AT) interface drives |
|
Floppy drives supported: |
Two 360KB, 720KB, 1.2MB or 1.44MB drives |
|
CONNECTIONS | |
|
Function |
Location |
|
25-pin parallel port - external |
CN1 |
|
9-pin serial port 1 - external |
CN2 |
|
10-pin serial port 2 - internal |
CN3 |
|
34-pin control cable connector - floppy drive |
J1 |
|
40-pin IDE (AT) Interface connector |
J3 |
|
4-pin connector - drive active LED |
JP3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
| » |
Main board supports VL-bus ID3 (speed < 50MHz) |
JP1 |
pins 1 & 2 closed |
|
Main board does not support VL-bus ID3 (speed > 50MHz) |
JP1 |
pins 2 & 3 closed | |
| » |
Factory configured - do not alter |
JP2 |
pins 1 & 2 closed |
| » |
Floppy drive enabled |
JP4/G |
pins 1 & 2 closed |
|
Floppy drive disabled |
JP4/G |
pins 2 & 3 closed | |
|
SERIAL PORT 1 (CN2) CONFIGURATION | |||
|
COM/Address/IRQ |
JP4/A |
JP4/B | |
| » |
COM1/3F8h/IRQ4 |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
COM3/3E8h/IRQ4 |
pins 2 & 3 closed |
pins 1 & 2 closed | |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
SERIAL PORT 2 (CN3) CONFIGURATION | |||
|
COM/Address/IRQ |
JP4/C |
JP4/D | |
| » |
COM2/2F8h/IRQ3 |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
COM4/2E8h/IRQ3 |
pins 2 & 3 closed |
pins 1 & 2 closed | |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
PARALLEL PORT (CN1) CONFIGURATION | ||||
|
Address/IRQ |
JP4/E |
JP4/F |
JP4/H | |
| » |
378h/IRQ7 |
pin 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
3BCh/IRQ7 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
278h/IRQ5 |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed | |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
all pins open | |
|
PARALLEL PORT BI-DIRECTIONAL FUNCTION | |
|
Setting |
JP5 |
|
Bi-directional |
open |
|
Uni-directional |
closed |
|
MEMORY CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 | |
| » |
512KB |
(1) 512K x 8 |
None |
|
1MB |
(1) 512K x 8 |
(4) 256K x 4 | |