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# JPN CORPORATION
286LS
Processor 80286
Processor Speed 12/16MHz
Chip Set Headland
Max. Onboard DRAM 4MB
Cache None
BIOS AMI
Dimensions 220mm x 220mm
I/O Options None
NPU Options 80287
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | JP2 | Turbo switch | JP10 |
|------------------+----------+-------------------+----------|
| Speaker | JP8 | Reset switch | JP11 |
|------------------+----------+-------------------+----------|
| Turbo LED | JP9 | Power LED & | JP12 |
| | | keylock | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP3 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP3 | Open |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP4 | Open |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP4 | Closed |
|---+----------------------------------+--------+------------|
| » | BIOS type select 27256 | JP5 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS type select 27128 | JP5 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | NPU clock speed select 10.4MHz | JP6 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | NPU clock speed select 4.8MHz | JP6 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | NPU mode select synchronous with | JP7 | Closed |
| | CPU | | |
|---+----------------------------------+--------+------------|
| | NPU mode select asynchronous | JP7 | Open |
| | with CPU | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Parity | Parity | Bank | Bank |
| | (D) | (D) | 0 (D) | 1 (D) | 0 (S) | 1 (S) |
|--------+--------+--------+--------+--------+-------+-------|
| 512KB | (4) | NONE | (2) | NONE | NONE | NONE |
| | 44256 | | 41256 | | | |
|--------+--------+--------+--------+--------+-------+-------|
| 512KB | NONE | NONE | NONE | NONE | (2) | NONE |
| | | | | | 256K | |
| | | | | | x 9 | |
|--------+--------+--------+--------+--------+-------+-------|
| 640KB | (4) | (4) | (2) | (2) | NONE | NONE |
| | 44256 | 4464 | 41256 | 4164 | | |
|--------+--------+--------+--------+--------+-------+-------|
| 1MB | (4) | (4) | (2) | (2) | NONE | NONE |
| | 44256 | 44256 | 41256 | 41256 | | |
|--------+--------+--------+--------+--------+-------+-------|
| 1MB | NONE | NONE | NONE | NONE | (2) | (2) |
| | | | | | 256K | 256K |
| | | | | | x 9 | x 9 |
|--------+--------+--------+--------+--------+-------+-------|
| 2MB | NONE | NONE | NONE | NONE | (2) | NONE |
| | | | | | 1M x | |
| | | | | | 9 | |
|--------+--------+--------+--------+--------+-------+-------|
| 4MB | NONE | NONE | NONE | NONE | (4) | (2) |
| | | | | | 1M x | 1M x |
| | | | | | 9 | 9 |
|------------------------------------------------------------|
| Notes:Model 286LS is available with either SIMM or SIPP |
| sockets. DIP and SIMM/SIPP memory must be used separately. |
+------------------------------------------------------------+