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# MULTI-TECH SYSTEMS, INC.
MT-486SX/DX
Processor 80486SX/80486DX
Processor Speed 33MHz
Chip Set UMC
Max. Onboard DRAM 32MB
Cache None
BIOS Phoenix
Dimensions 105mm x 34mm
I/O Options Floppy drive interface, IDE interface,
parallel port, serial ports (2), VGA port
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| VGA port | CN1 | Floppy drive | P2 |
| | | interface | |
|---------------+----------+----------------------+----------|
| Serial port 1 | CN2 | Serial port 2 | P4 |
|---------------+----------+----------------------+----------|
| Reset switch | J17 | Parallel port | P8 |
|---------------+----------+----------------------+----------|
| IDE interface | P1 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|---------------------------------------+---------+----------|
| ยป | Flash BIOS write protect enabled | J18 | Closed |
|---+-----------------------------------+---------+----------|
| | Flash BIOS write protect disabled | J18 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+