Epson ExpressStation Product Information Guide

ExpressStation

diskette access light

power outlet

serial

PO*

disk&e

release latch

cover screw

mouse

’

port

Computer Specifications

CPU and Memory CPU

System memory

BIOS

Video RAM

Cache memory

Math coprocessor

Intel 25 MHz 486SX, or 33 MHz 486DX microprocessor; simulated 8 MHz processor speed selectable through software or keyboard command

4MB RAM standard on one 4MB SIMM; expandable using 1MB, 2MB, 4MB, or 8MB SIMMs up to 32MB (when 8MB SIMMs are available); SIMMs must be 80ns, 36bit, 72-pin, gold-leaded, fast-page mode type

256KB two-part system BIOS including video BIOS in two FLASH ROM devices; write-protection available through jumper and software

1MB standard

8KB internal cache integrated into the microprocessor; optional 128KB Intel 485 Turbo Cache module can be installed on main system board (128KB cache module

standard on 486/33 model); writethrough, two-way set associative cache memory and controller; operation controllable through software

Socket for optional Intel 25 MHz 487SX coprocessor (allowable on 486SX/25 model only)

hard disk

access light

wrallel

keyboard

Doti

oort

‘/“““on

power light

I reset

button

poker

button

slots

Shadow RAM

Clock/calendar

Interfaces

Monitor

Parallel

serial

SCSI

LAN

Mouse

Keyboard

Option slots

Speaker

Controllers

Diskette

Hard disk

Video

Optional shadow RAM to copy system, video, or external BIOS information from ROM to RAM; software selectable

Socketed DS1287 real-time clock, calendar, and 64-byte CMOS RAM for configuration; integrated battery with IO-year life

15-pin, D-shell analog connector; supports standard VGA, multi-frequency, and highresolution monitors

25-pin, D-shell connector; supports IBM AT compatible or PS/2 compatible (bidirectional) signals; selectable through software

Two RS-232-C 9-pin, D-shell connectors; asynchronous; up to 56K baud rate

Internal connector for SCSI hard disk drive on drive riser card (single-ended mode only), terminator soldered onto riser card;

external SO-pin, fine-pitch connector on back panel for up to seven external SCSI devices (six if internal device is used); external SCSI terminator included

One 15-pin AUI (Attachment Unit Interface) D-sub connector; can connect external MAU (Medium Attachment Unit) to provide interface with other networks

One TPE (Twisted Pair Ethernet),

10BASET connector

Mini DIN, 6-pin connector for PS/2 compatible mouse or other pointing device

Mini DIN, 6-pin connector for PS/2 compatible keyboard

Two 32-bit EISA expansion slots (16-bit and 8-bit ISA compatible) on option card riser board

Internal speaker integrated into power supply; programmable at I/O port 61h; operation controllable through software

Controller on drive riser board supports one 3.5 inch 1.44MB, third-height diskette drive

Two interfaces on drive riser board support either one IDE drive or one internal SCSI hard disk drive; 3.5inch, third- or half- height form factor

WD90C30 controller; supports resolutions up to 1024 x 768 in 256 colors; compatible with MDA, CGA, Hercules, EGA, and VGA standards

ExpressStation Computer

11/2/92

ExpressStation-

ExpressStation

LAN

Intel 82596CA, 64-byte transmit FIFO,

128-byte receive FIFO; 6-byte Ethernet

address per IEEE 802.3 standard stored in

writ+protectable FLASH ROM; 25 MHz or

33 MHz operation, based on CPU speed

SCSI

NCR standard; internal FIFO (first-in-first-out), 32-bit address and data busses, internal SCRIPTS processor with fast DMA; 25 MHz or 33 MHz operation, based on CPU

speed

Mass Storage Bays

Up to two internal devices maximum, one third-height, 3.5-inch diskette drive bay; one third- or half-height, 3.5-inch hard disk drive bay for IDE or SCSI drive

Can connect up to seven optional external SCSI devices to external SCSI connector

(six maximum if internal SCSI is used)

Keyboard

Detachable, two-position, 101 or 102 sculpted keys

Layout

Countrydependent main typewriter keyboard; numeric/cursor control keypad; four-key cursor control keypad; 12 function keys

5X700

I/O processor for SCSI-II

Power Source Requirements

I20-Volt

power source requironents

Plug m

North America

R*ferencr

etendards

ANSI

Physical Characteristics

Width

Depth

Height 3 inches

Weight

15.5 inches

(39

cm)

15 inches (38 cm)

cm)

20 lb (9 kg) without peripheral devices

Main System Board Map

Powar

cord

UVCAS Listed, Type SIT.

no.lEI3AWG.

or no. 16BAWG. or

<HA&.

3OOV,

1 OA or

13A

Power Supply

Input ranges

Option slot power limits

Power supply current ratings

142W, fan-cooled, automatic input voltage

sensing male AC input socket, female AC output socket; integrated power and reset buttons, panel LEDs, speaker, and fans

9Oto132VACandX%Ito264VAC,47to63Hz

Maximum amperage for cards in both option slots: at +5V, 6 Amps; at +12V,

2 Amps; at

-5V,

0.3 Amps; at

Environmental Requirements

Condition

Temperature Humidity

Altitude

operating

60”to104°F(1Pto400C) 6!Y RH maximum with no

herd d&k; with herd nottoexaed78oF(26oCI

wet bulb

to 10,000 it

rengo

(3.046

disk,

. .

-l2V,

0.3 Amps

Non-apmting

-tol56“F(4U’toWC) 95O

RH maximum et

1M°F(40’C)

to 60.000 ft (15.240 m)

mnga

VIdeoRAM chip sockets

0-O

reoHlme

‘I,

I- powr supply

Jll

J12 J13 sockets

‘Jli

clock

connector

option

card her

boord

jumper

bbck JlO

connector jumper

bbck

microprocessor

math coprocessor socket

SIMM

ExpressStation-2

5/12/92 ExpressStation Computer

Main System Board Jumpers

The computer contains four blocks (groups) of jumpers: J3, JS,

119,

and J21. To access jumper blocks remove any option cards that are installed. You must remove the drive housing to access jumper blocks J3 and

Caution

Do not install or

remow

any option cards when the removed from the computer. The housing stabilizes the option card riser board and you could severely damage it if you put stress on it without the support of the drive housing. Also, do not change the settings in the reserved jumper block

JlO;

these jumpers must remain at their factory

settings.

Each jumper block consists of 14 jumper pins, as shown below. Certain pin numbers and jumper functions are each jumper block on the main system board.

119

and J21, you must

JS.

driw

labelled

housing is

beside

ExpressStation

121

Settings

Jumper pins i-3’

3-5 2-4

4-6 9-11

11-13’ 10-12’

12-14

Factory setting

Function

Enables you to use the BIOS SETUP program

Disables use of the BIOS SETUP program so unauthorized

users

canno

Clears the power-on password Retains the power-on password Clears the current

memory and sets delault parameters

Retains the current BIOS SETUP information in CMOS memory

Sets normal FLASH memory operation

Sets the FLASH memory 10 operate in recovery mode

you unsuccessfully attempted lo download updated BIOS

information; allows previous BIOS information

change the

settings you have chosen

BIOS SETUP information in CMOS

start of a procedure lo restore the

Main System Board Connectors

J1-Internal Serial Port 1 Header

Type: 3M style header, double row (Male)

2 GND

IN/C

4 DTR

3Rl

6 Serial 6 Data Out

5CTS 7RTS

ssrlal 10RLSD

Data In

9 DSR

I2N.C

11 tvc

14fvc

N/c

The tables below list the jumper settings available in each jumper block.

Settings

Jumper pins

2-4 4-6’

Settings

119

Settings

Jummr oins

Faclory setting

Function

Wrb-protecis dow’nloadlng

Enebks

1 Funcilon

Indkntes

Indicates that you have installed Enables the bulk-in VGA display adapter

Disables the

the dlhkstte drtve to prevent unauthorized

of software onto a diskette

all

writes 10

the diskette drive

that you are using the standard 512KB size video

additlonal

bulk-in

VGA display adapter

video RAM

J2-Power Connector

Type: Single Row Header Style (Male)

Pinout:

RAWST

+12

-12

GND

-5

GND

-12

HDActive

Front Panel Reset

Speaker Data

J4-Dual Serial Port Connector

Type: Stacked Dual 9-Pin D-sub (Male)

Pinout: PC AT standard

J6A-Parallel Port

Type: 25-pin Centronics type (Female)

Pinout: PC AT standard

ExpressStation Computer

5/12/92

ExpressStation-3

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