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