MULTI-TECH SYSTEMS, INC.
MT386SBC/486SLC
| Processor | 80386SX/CX486SLC | 
| Processor Speed | 25MHz | 
| Chip Set | UMC | 
| Max. Onboard DRAM | 16MB | 
| Cache | None | 
| BIOS | Phoenix | 
| Dimensions | 340mm x 105mm | 
| I/O Options | Floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port | 
| NPU Options | 80387SX | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Serial port 1 | CN1 | Serial port 2 | P4 | 
| VGA port | CN2 | Power LED & keylock | P5 pins 1-5 | 
| IDE interface LED | J11 | External switch reset | P5 pin 7 | 
| Turbo LED | J12 | Keyboard inhibit switch | P5 pin 8 | 
| Hardware reset switch | J13 | Speaker | P5 pins 9-10 | 
| IDE interface | P1 | Turbo switch | P5 pins 11-12 | 
| Floppy drive interface | P2 | Parallel port | P8 | 
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper | Position | |
| » | Pipeline control disabled | J2 | Open | 
| Pipeline control disabled | J2 | Closed | |
| » | NPU asynchronous with CPU | J3 | Open | 
| NPU synchronous with CPU | J3 | Closed | |
| » | IDE interface enabled | J4 | pins 1 & 2 closed | 
| IDE interface disabled | J4 | pins 2 & 3 closed | |
| » | Hardware reset when DCD on COM1 goes from on to off enabled | J5 | Closed | 
| Hardware reset when DCD on COM1 goes from on to off disabled | J5 | Open | |
| » | Parallel port unidirectional (printer) | J7 | pins 2 & 3 closed | 
| Parallel port bidirectional | J7 | pins 1 & 2 closed | |
| » | IRQ9 connected to AT bus | J10 | pins 2 & 3 closed | 
| IRQ9 connected to internal VGA | J10 | pins 1 & 2 closed | |
| DRAM CONFIGURATION | ||
| Size | Bank 0 | Bank 1 | 
| 512KB | (2) 256K x 9 | NONE | 
| 1MB | (2) 256K x 9 | (2) 256K x 9 | 
| 4MB | (2) 1M x 9 | (2) 1M x 9 | 
| 8MB | (2) 4M x 9 | NONE | 
| 16MB | (2) 4M x 9 | (2) 4M x 9 |