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# SIEMENS NIXDORF INFORMATIONSSYSTEME AG
486 MODEL 402
Processor 80486DX
Processor Speed 25MHz
Chip Set Unidentified
Max. Onboard None (4/8/16MB on 32-bit external memory
DRAM cards)
Cache None
BIOS Phoenix
Dimensions 355.6mm x 304mm
I/O Options Floppy drive interface, parallel port, mouse
port, serial ports (2), 32-bit external
memory card slots (4)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| Mouse port | J3 | Floppy connecter | J22 |
|----------------+----------+---------------------+----------|
| Parallel port | J4 | Auxillary power | J23 & |
| | | connecter | J25 |
|----------------+----------+---------------------+----------|
| Serial port 1 | J5 | Auxillary front | J24 & |
| | | panel connecter | J26 |
|----------------+----------+---------------------+----------|
| Serial port 2 | J6 | 32-bit external | S1 - S4 |
| | | memory cards | |
|----------------+----------+---------------------+----------|
| Front panel | J16 | | |
| connecter | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------+---------+-------------------|
| » | Password enabled | JP1 | pins 2 & 3 closed |
|---+--------------------------+---------+-------------------|
| | Password disabled | JP1 | pins 1 & 2 closed |
|---+--------------------------+---------+-------------------|
| » | BIOS type select 27256 | JP2 | pins 1 & 2 closed |
|---+--------------------------+---------+-------------------|
| | BIOS type select 27512 | JP2 | pins 2 & 3 closed |
+------------------------------------------------------------+