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STEP MP EV-2607

EVEREX SYSTEMS, INC.

STEP MP EV-2607

Processor

80386DX/80486DX (Depending on which CPU card is used)

Processor Speed

25/33MHz

Chip Set

C & T

Max. Onboard DRAM

64MB

SRAM Cache

64/256KB

BIOS

Quadtel

Dimensions

330mm x 220mm

I/O Options

Base card slots (3), CPU Card slot, external memory card, SCSI card slots (2)

NPU Options

80387DX (Depending on which CPU card is used)

CONNECTIONS

Purpose

Location

Purpose

Location

LED display

CN1

Speaker

J22

Chassis fan power

J15

Power good LEDs

LEDs

SCSI B connector

J16

16-bit external memory card

S1

SCSI A connector

J17

SCSI board slots

S2 & S3

Chassis fan power

J21

Base card slots

S4, S5, & S6

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

I/O bus select ISA card set

J1

closed

 

I/O bus select EISA card set

J1

open

CONNECTIONS

Purpose

Location

Purpose

Location

Memory activity indicator

CN1

ECC fault indicator LED

LED1

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

16MB

(4) 4M x 9

NONE

NONE

NONE

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

64MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NOTE

Note:This card must be place in either slot 5 or 6 on the system board only.

If installing the card in slot 5 then resistors RP4, RP8, & RP12 must be removed.

If installing the card in slot 6 then

CONNECTIONS

Purpose

Location

Purpose

Location

CPU activity indicator connector

CN1

CPU activity indicator LED

LED1

SCSI connector

CN2

   

CACHE CONFIGURATION

Size

Cache

64KB

(8) 8K x 8

CONNECTIONS

Purpose

Location

Purpose

Location

CPU activity indicator connector

CN1

RS422 Serial I/O connector

J3

RS422 Serial I/O connector

J1

RS422 Serial I/O connector

J4

RS422 Serial I/O connector

J2

CPU activity indicator LED

LED1

CACHE CONFIGURATION

Size

Cache

256KB

(8) 256K x 1

CONNECTIONS

Purpose

Location

Purpose

Location

CPU activity indicator connector

CN1

CPU activity indicator LED

LED1

CACHE CONFIGURATION

Size

Cache

256KB

(8) 256K x 1

MEMORY ADDRESS CONFIGURATION

Function

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

Disable 8th MB

On

Off

Off

Off

Off

Off

Off

Disable 9th MB

Off

On

Off

Off

Off

Off

Off

Disable 10th MB

Off

Off

On

Off

Off

Off

Off

Disable 11th MB

Off

Off

Off

On

Off

Off

Off

Disable 12th MB

Off

Off

Off

Off

On

Off

Off

Disable 13th MB

Off

Off

Off

Off

Off

On

Off

Disable 14th MB

Off

Off

Off

Off

Off

Off

On

Note:Turning on one or more of the above switches will open a window of addressed space for configuration of memory mappd devices like network controllers and multiport cards.

CONNECTIONS

Purpose

Location

Purpose

Location

CPU activity indicator connector

CN1

CPU activity indicator LED

LED1

Base CPU Ribbon connector

CN2

   

CACHE CONFIGURATION

Size

Cache

256KB

(8) 256K x 1

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

SCSI connector

CN4

Serial port

CN2

Reset button

CN5

Paddle port connector (optional)

CN3

Floppy drive interface

CN6

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port

CN1

Floppy drive interface

CN3

Base CPU ribbon connector

CN2

Reset switch

CN4

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Montior type select color

J1

Open

 

Monitor type select monochrome

J1

Closed

Floppy drive interface enabled

J2

Open

 

Floppy drive interface disabled

J2

Closed

Serial port select COM1

J3

Open

 

Serial port select COM2

J3

Closed

Factory configured - do not alter

J4

Open