Nec POWERMATE PROFESSIONAL SERVICE MANUAL

PROPRIETARY NOTICE AND LIABILITY DISCLAIMER

The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Computer Systems Division, Packard Bell NEC, Inc. (hereinafter “NECCSD”) and/or its licensors. NECCSD and/or its licensors, as appropriate, reserve all patent, copyright and other proprietary rights to this document, including all design, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others.

The NECCSD product(s) discussed in this document are warranted in accordance with the terms of the Warranty Statement accompanying each product. However, actual performance of each such product is dependent upon factors such as system configuration, customer data, and operator control. Since implementation by customers of each product may vary, the suitability of specific product configurations and applications must be determined by the customer and is not warranted by NECCSD.

To allow for design and specification improvements, the information in this document is subject to change at any time, without notice. Reproduction of this document or portions thereof without prior written approval of NECCSD is prohibited.

NEC is a registered trademark of NEC Corporation, and FastFacts, MagicEye, MultiSync, and PowerMate are either trademarks or registered trademarks of NEC Technologies, Inc.; these trademarks are used under license by Packard Bell, NEC.

All other product, brand, or trade names used in this publication are the trademarks or registered trademarks of their respective trademark owners.

First Printing — May 1997

 

Copyright 1997

Copyright 1997

NEC Computer Systems Division

NEC Corporation

Packard Bell NEC, Inc.

7-1 Shiba 5-Chome, Minato-Ku

1414 Massachusetts Avenue

Tokyo 108-01, Japan

Boxborough, MA 01719-2298

All Rights Reserved

All Rights Reserved

 

iii

Contents

Preface.........................................................................................................................

xv

Abbreviations...............................................................................................................

xvii

Section 1 Technical Information

 

System Chassis ............................................................................................................

1-3

System Board ..............................................................................................................

1-4

Processor and Secondary Cache ............................................................................

1-7

System BIOS ........................................................................................................

1-7

I/O Addressing......................................................................................................

1-9

System Memory....................................................................................................

1-10

Interrupt Controller...............................................................................................

1-11

Plug and Play ........................................................................................................

1-12

ISA Bus ................................................................................................................

1-12

PCI Local Bus ......................................................................................................

1-12

PCI/IDE Ports ......................................................................................................

1-13

Parallel Interface ...................................................................................................

1-13

Serial Interface......................................................................................................

1-14

Infrared Interface ..................................................................................................

1-15

Video Board ................................................................................................................

1-15

Video Support ......................................................................................................

1-15

Video Playback .....................................................................................................

1-16

Audio ..........................................................................................................................

1-17

SCSI Board .................................................................................................................

1-18

Diskette Drive..............................................................................................................

1-19

Hard Disk Drive...........................................................................................................

1-19

IDE Hard Drives...................................................................................................

1-19

SCSI Hard Disk ....................................................................................................

1-20

Sixteen-Speed CD-ROM..............................................................................................

1-20

CD-ROM Reader Operation..................................................................................

1-20

CD-ROM Reader Settings.....................................................................................

1-21

Power Supply ..............................................................................................................

1-22

Keyboard .....................................................................................................................

1-22

Mouse .........................................................................................................................

1-22

Speakers ......................................................................................................................

1-22

Specifications...............................................................................................................

1-23

 

 

iv Contents

Section 2 Setup and Operation

 

Unpacking and Repacking............................................................................................

2-1

System Setup ...............................................................................................................

2-1

Keyboard, Mouse, and Power Cable Connection ...................................................

2-1

Monitor Connection..............................................................................................

2-3

Speaker and Microphone Connections...................................................................

2-3

Starting Up ..................................................................................................................

2-7

The Setup Utility..........................................................................................................

2-7

When to Use Setup ...............................................................................................

2-8

How to Start Setup ...............................................................................................

2-9

How to Use Setup.................................................................................................

2-10

Main Menu ...........................................................................................................

2-10

System Date/Time..........................................................................................

2-11

Diskette Drive................................................................................................

2-11

IDE Devices...................................................................................................

2-11

Language .......................................................................................................

2-13

Boot Options .................................................................................................

2-13

Power-On COM1 Ring ..................................................................................

2-16

Video Mode...................................................................................................

2-16

Mouse............................................................................................................

2-16

Base Memory.................................................................................................

2-17

Extended Memory..........................................................................................

2-17

BIOS Version ................................................................................................

2-17

Advanced Menu....................................................................................................

2-17

Processor Type ..............................................................................................

2-18

Processor Speed.............................................................................................

2-18

Cache Size .....................................................................................................

2-18

Peripheral Configuration ................................................................................

2-18

Advanced Chipset Configuration ....................................................................

2-20

Power Management Configuration .................................................................

2-22

Plug and Play Configuration...........................................................................

2-24

Event Logging Configuration .........................................................................

2-26

Security Menu.......................................................................................................

2-27

Enter Password and Set Administrative Password ..........................................

2-29

Unattended Start ............................................................................................

2-29

Security Hot Key (CTRL-ALT-) ....................................................................

2-30

Exit Menu.............................................................................................................

2-30

 

 

 

Contents v

 

 

Exit Saving Changes ......................................................................................

2-30

Exit Discarding Changes ................................................................................

2-31

Load Setup Defaults.......................................................................................

2-31

Discard Changes ............................................................................................

2-31

Flash Utility .................................................................................................................

2-31

NECCSD Bulletin Board Service ..........................................................................

2-32

Flash Utility ..........................................................................................................

2-34

SCSISelect Utility........................................................................................................

2-35

LANDesk Client Manager............................................................................................

2-35

LANDesk Client Manager Setup ...........................................................................

2-35

Features ................................................................................................................

2-35

PC Health Indicator ..............................................................................................

2-35

Managing Workstations .................................................................................

2-35

PC Health Meter ............................................................................................

2-36

PC Health Description....................................................................................

2-36

Inventory ..............................................................................................................

2-37

Using DMI............................................................................................................

2-37

NEC MagicEye Technology..................................................................................

2-38

Video Drivers ..............................................................................................................

2-38

Changing Display Properties .................................................................................

2-39

Windows 95...................................................................................................

2-39

Windows NT 4.0............................................................................................

2-40

CD Restore..................................................................................................................

2-41

Selecting CD Restore Options...............................................................................

2-41

Restore Individual Files ..................................................................................

2-41

System Recovery ...........................................................................................

2-41

Restoring Individual Files......................................................................................

2-42

Selecting Files ................................................................................................

2-43

Checking Selected Files..................................................................................

2-43

Restoring the Files .........................................................................................

2-44

Recovering the System..........................................................................................

2-44

Windows NT 4.0 Application CD Installation Instructions............................................

2-45

McAfee VirusScan Installation ..............................................................................

2-45

LANDesk Client Manager Installation...................................................................

2-46

Local Mode ...................................................................................................

2-46

Administrator Mode.......................................................................................

2-47

Driver CD Installation Instructions...............................................................................

2-48

 

 

vi Contents

Driver Installation Guidelines ................................................................................

2-48

Guidelines for Windows 95 Installations.........................................................

2-48

Guidelines for Windows NT Installations........................................................

2-49

Driver Installation For the Windows 95 Operating System.....................................

2-49

Preparation ....................................................................................................

2-49

NEC 16X CD-ROM Drivers ..........................................................................

2-50

PIIX3 IDE Drivers.........................................................................................

2-50

Matrox Mystique Video Drivers.....................................................................

2-51

Yamaha Audio Drivers...................................................................................

2-52

Driver Installation for the Windows NT Operating System ....................................

2-53

Preparation ....................................................................................................

2-53

PIIX3 IDE Drivers.........................................................................................

2-53

Matrox Mystique Video Drivers.....................................................................

2-54

Yamaha Audio Drivers...................................................................................

2-55

Number Nine Imagine 128 Series 2 Video Drivers..........................................

2-56

Section 3 Option Installation

 

General Rules For Installing Options ............................................................................

3-1

Precautions ...........................................................................................................

3-1

Optional Hardware................................................................................................

3-2

Removing the System Unit Cover ................................................................................

3-3

Removing the Cover .............................................................................................

3-3

Replacing the System Unit Cover ..........................................................................

3-5

Adding Internal Options...............................................................................................

3-6

Expansion Boards .................................................................................................

3-7

Slot Locations................................................................................................

3-8

Expansion Board Installation..........................................................................

3-8

Expansion Board Removal .............................................................................

3-10

SIMM Upgrade.....................................................................................................

3-11

Checking the Memory in the System ..............................................................

3-11

SIMM Removal .............................................................................................

3-13

SIMM Installation..........................................................................................

3-13

Video Upgrade .....................................................................................................

3-14

Data Storage Devices............................................................................................

3-16

Device Support ..............................................................................................

3-16

Device Slots...................................................................................................

3-16

Device Preparation.........................................................................................

3-18

 

 

Contents vii

Device Cables ................................................................................................

3-18

Diskette Drive Signal Cable............................................................................

3-19

IDE Signal Cables ..........................................................................................

3-20

SCSI Cable ....................................................................................................

3-20

System Power Cables .....................................................................................

3-21

Cabling an IDE or SCSI Device .....................................................................

3-21

Cabling a Diskette Drive ................................................................................

3-22

Storage Device Installation....................................................................................

3-23

3 1/2-Inch Drive Installation...........................................................................

3-23

Removing the Side Panel................................................................................

3-26

Removing the Front Panel ..............................................................................

3-27

Installing the 5 1/4-Inch Device ......................................................................

3-29

Replacing the Front and Side Panels ...............................................................

3-31

Adding External Options..............................................................................................

3-31

Parallel Printer ......................................................................................................

3-32

Serial Devices .......................................................................................................

3-32

SCSI Devices........................................................................................................

3-33

Section 4 Maintenance and Troubleshooting

 

Online Services ............................................................................................................

4-2

NEC’s FastFacts Service.......................................................................................

4-2

NECCSD Bulletin Board Service ..........................................................................

4-3

E-mail/Fax Technical Support Service...................................................................

4-5

Internet .................................................................................................................

4-5

NECCSD Technical Support Services ...................................................................

4-6

Maintenance ................................................................................................................

4-6

System Cleaning....................................................................................................

4-6

Keyboard Cleaning................................................................................................

4-7

Mouse Cleaning ....................................................................................................

4-7

Troubleshooting...........................................................................................................

4-8

Error Messages .....................................................................................................

4-8

Diagnosing and Solving Problems .........................................................................

4-11

Beep Codes...........................................................................................................

4-17

CMOS Battery Replacement .................................................................................

4-17

viii Contents

Section 5 Repair

 

Disassembly and Reassembly........................................................................................

5-1

System Unit Cover Removal .................................................................................

5-2

Side Panel Removal ..............................................................................................

5-4

Expansion Board Removal ....................................................................................

5-4

SIMM Removal ....................................................................................................

5-5

Front Panel Assembly Removal .............................................................................

5-7

Blank Panel and Metal Cover Plate Removal.........................................................

5-7

3 1/2-Inch Diskette Drive Removal .......................................................................

5-8

3 1/2-Inch Hard Disk Drive Removal ....................................................................

5-10

5 1/4-Inch Device Removal...................................................................................

5-11

Power Supply Removal.........................................................................................

5-13

System Board Removal.........................................................................................

5-15

Processor Subsystem Removal ..............................................................................

5-16

Illustrated Parts Breakdown .........................................................................................

5-17

Appendix A Connector Pin Assignments

 

I/O, Power Supply, and Chassis Intrusion Connectors ..................................................

A-1

Parallel Interface Connector ..................................................................................

A-2

Serial Interface Connectors ...................................................................................

A-3

Keyboard and Mouse Connectors..........................................................................

A-4

USB Connectors ...................................................................................................

A-5

Audio/MIDI Connectors .......................................................................................

A-5

Power Supply Connector ......................................................................................

A-6

Chassis Intrusion Connector..................................................................................

A-7

Storage Device Connectors..........................................................................................

A-7

Diskette Drive Connector......................................................................................

A-8

IDE Connectors ....................................................................................................

A-9

LED Connectors ..........................................................................................................

A-10

Hard Drive LED Connector ..................................................................................

A-10

Power LED Connector..........................................................................................

A-11

Reset Button Connector........................................................................................

A-11

Infrared Connector................................................................................................

A-12

Sleep Connector....................................................................................................

A-12

Power On Connector ............................................................................................

A-13

ISA, PCI, and SIMM Connectors.................................................................................

A-13

 

 

Contents ix

 

ISA Pin Assignments.............................................................................................

A-13

 

PCI Pin Assignments.............................................................................................

A-15

 

SIMM Sockets......................................................................................................

A-16

Appendix B System Board Settings

 

Changing Jumper Settings ............................................................................................

B-2

 

System Board Jumper Locations ...........................................................................

B-3

 

Changing System Board Jumper Settings ..............................................................

B-4

 

Processor/Bus Speed Jumpers ........................................................................

B-4

 

BIOS Recovery..............................................................................................

B-6

 

Clearing CMOS .............................................................................................

B-7

 

Denying Access to CMOS Setup....................................................................

B-8

 

Clearing the Password....................................................................................

B-10

Appendix C Hard Disk Drive Specifications

 

Hard Disk Drive Specifications ....................................................................................

C-1

Appendix D CD-ROM Reader Specifications and Jumper Settings

 

CD-ROM Reader Specifications...................................................................................

D-1

CD-ROM Reader Connectors and Jumper Settings ......................................................

D-2

List of Figures

 

1-1

System Controls and Storage Device Slots .....................................................

1-3

1-2

Rear Panel Features........................................................................................

1-4

1-3

IDE Hard Disk Drive Jumper Settings............................................................

1-20

1-4

CD-ROM Reader Controls and Indicators ......................................................

1-21

1-5

CD-ROM Jumper Settings .............................................................................

1-22

2-1

Voltage Selector Switch.................................................................................

2-2

2-2

Keyboard/Mouse Connections........................................................................

2-2

2-3

Monitor Signal Cable Connection...................................................................

2-3

2-4

Right Speaker ................................................................................................

2-4

2-5

Speaker Cables...............................................................................................

2-4

2-6

Connecting the Two Speakers ........................................................................

2-5

2-7

Attaching the Microphone and Y-Cable..........................................................

2-6

2-8

Connecting the AC Adapter ...........................................................................

2-6

 

 

 

x Contents

2-9

Power Button.................................................................................................

2-7

2-10

Main Menu ....................................................................................................

2-9

2-11

Display Properties Window – Windows 95.....................................................

2-39

2-12

Display Properties Window – Windows NT 4.0..............................................

2-40

3-1

Cover Screws.................................................................................................

3-4

3-2

Releasing the System Unit Cover....................................................................

3-5

3-3

System Unit Cover Replacement ....................................................................

3-6

3-4

System Board Upgrade Sockets and Connectors ............................................

3-7

3-5

Expansion Slot Locations...............................................................................

3-8

3-6

Removing a Slot Cover ..................................................................................

3-9

3-7

Inserting the Expansion Board........................................................................

3-10

3-8

Removing a SIMM.........................................................................................

3-13

3-9

Inserting the SIMM........................................................................................

3-14

3-10

Aligning the Video Module with the Socket ...................................................

3-15

3-11

Storage Device Slots......................................................................................

3-17

3-12

System Board Cable Connectors ....................................................................

3-19

3-13

Diskette Drive Signal Cable............................................................................

3-19

3-14

IDE Cable Connectors ...................................................................................

3-20

3-15

SCSI Connectors ...........................................................................................

3-20

3-16

Power Cable Connectors ................................................................................

3-21

3-17

Connecting IDE Device Cables ......................................................................

3-22

3-18

Connecting 1.2-MB Diskette Drive Cables .....................................................

3-22

3-19

Locating the Power Supply ............................................................................

3-24

3-20

Removing the Power Supply Screws ..............................................................

3-25

3-21

Securing a 3 1/2-Inch Drive............................................................................

3-26

3-22

Removing Side Panel Screws .........................................................................

3-27

3-23

Removing the Front Panel ..............................................................................

3-28

3-24

Removing the Slot Cover ...............................................................................

3-28

3-25

Attaching the Device Rails .............................................................................

3-29

3-26

Inserting the Device .......................................................................................

3-30

3-27

Aligning the Front Panel.................................................................................

3-31

3-28

Connecting a Printer Cable.............................................................................

3-32

3-29

Connecting an RS-232C Cable .......................................................................

3-33

3-30

Connecting a SCSI Cable ...............................................................................

3-34

 

Contents xi

 

 

 

4-1

Removing the Mouse Ball Cover....................................................................

4-8

4-2

Battery Socket Location.................................................................................

4-18

4-3

Battery Removal ............................................................................................

4-18

5-1

Cover Screws.................................................................................................

5-3

5-2

Releasing the System Unit Cover....................................................................

5-3

5-3

Removing Side Panel Screws .........................................................................

5-4

5-4

Expansion Board Removal .............................................................................

5-5

5-5

System Board SIMM Sockets ........................................................................

5-6

5-6

Removing a SIMM.........................................................................................

5-6

5-7

Removing the Front Panel ..............................................................................

5-7

5-8

Removing the Slot Cover ...............................................................................

5-8

5-9

3 1/2-Inch Diskette Drive Cables....................................................................

5-8

5-10

Diskette Drive Screws....................................................................................

5-9

5-11

Diskette Drive Removal .................................................................................

5-9

5-12

3 1/2-Inch Hard Disk Drive Cables.................................................................

5-10

5-13

Removing the 3 1/2-Inch Drive ......................................................................

5-11

5-14

Removing the Device .....................................................................................

5-12

5-15

Removing the Device Rails.............................................................................

5-12

5-16

Power Supply Screws ....................................................................................

5-13

5-17

Power Supply Ducting (266-MHz Models) ....................................................

5-14

5-18

System Board Removal..................................................................................

5-15

5-19

Processor Subsystem Removal .......................................................................

5-16

5-20

PowerMate Professional Series Illustrated Parts Breakdown ..........................

5-20

A-1

System Board Chassis Intrusion, Power, and I/O Connector Locations...........

A-2

A-2

Parallel Interface Connector ...........................................................................

A-2

A-3

Serial Interface Connector..............................................................................

A-3

A-4

PS/2-Style Keyboard and Mouse Interface Connectors...................................

A-4

A-5

Storage Device Connector Locations .............................................................

A-7

A-6

LED Connectors ............................................................................................

A-10

A-7

Hard Disk LED Connector.............................................................................

A-10

A-8

Power LED Connector...................................................................................

A-11

A-9

Reset Button Connector.................................................................................

A-11

A-10

Infrared Connector.........................................................................................

A-12

xii Contents

A-11

Sleep Connector.............................................................................................

A-12

A-12

Power On Connector .....................................................................................

A-13

A-13

PCI, ISA, and SIMM Connector Locations ....................................................

A-13

B-1

Locating System Configuration Jumpers.........................................................

B-3

List of Tables

 

1-1

PowerMate Professional Series System Configurations...................................

1-1

1-2

System Board Feature Components................................................................

1-6

1-3

System Memory Map .....................................................................................

1-8

1-4

I/O Address Map ...........................................................................................

1-9

1-5

Interrupt Level Assignments...........................................................................

1-11

1-6

Parallel Port Addressing and Interrupts ..........................................................

1-13

1-7

Serial Port Addressing and Interrupts .............................................................

1-14

1-8

Matrox Mystique Video Board Support .........................................................

1-16

1-9

Number Nine Imagine Video Board Support ..................................................

1-16

1-10

Audio Subsystem Resources..........................................................................

1-18

1-11

Specifications.................................................................................................

1-23

2-1

Navigation Keys.............................................................................................

2-10

2-2

Hot Key Parameters .......................................................................................

2-24

2-3

Security Passwords ........................................................................................

2-28

3-1

Recommended Memory Upgrade Path ...........................................................

3-12

4-1

NECCSD Service and Information Telephone Numbers .................................

4-1

4-2

System Error Messages ..................................................................................

4-9

4-3

PCI Error Messages .......................................................................................

4-10

4-4

Problems and Solutions ..................................................................................

4-12

4-5

Diagnostic Beep Codes ..................................................................................

4-17

5-1

PowerMate Professional Series System Unit Disassembly Sequence ...............

5-1

5-2

PowerMate Professional Series Field-Replaceable Parts List...........................

5-15

5-3

PowerMate Professional Series Options .........................................................

5-19

5-4

PowerMate Professional Series Documentation and Packaging.......................

5-19

Contents xiii

A-1

System Board Connectors ..............................................................................

A-1

A-2

Parallel Interface Pin Assignments ..................................................................

A-3

A-3

Serial Interface Pin Assignments.....................................................................

A-4

A-4

Keyboard and Mouse Pin Assignments ...........................................................

A-4

A-5

USB Port Pin Assignments.............................................................................

A-5

A-6

Microphone In Pin Assignments .....................................................................

A-5

A-7

Line In Pin Assignments .................................................................................

A-5

A-8

Line Out Pin Assignments ..............................................................................

A-5

A-9

MIDI Pin Assignments ...................................................................................

A-6

A-10

Power Connector Pin Assignments.................................................................

A-6

A-11

Chassis Intrusion Pin Assignments..................................................................

A-7

A-12

Diskette Drive Pin Assignments......................................................................

A-8

A-13

IDE Interface Pin Assignments.......................................................................

A-9

A-14

Hard Disk LED Pin Assignments....................................................................

A-10

A-15

Power LED Pin Assignments .........................................................................

A-11

A-16

Reset Pin Assignments ...................................................................................

A-11

A-17

Infrared Pin Assignments................................................................................

A-12

A-18

Sleep Pin Assignments ...................................................................................

A-12

A-19

Power On Pin Assignments ............................................................................

A-13

A-20

ISA Bus Pin Assignments...............................................................................

A-14

A-21

PCI Connector Pin Assignments.....................................................................

A-15

A-22

SIMM Socket Pin Assignments ......................................................................

A-16

B-1

System Board Jumper Settings .......................................................................

B-4

C-1

Quantum 3.2-GB Hard Disk Specifications ....................................................

C-1

C-2

4-GB Seagate Hard Disk Specifications..........................................................

C-3

D-1

Specifications for Sixteen-Speed NEC CD-ROM Reader................................

D-1

D-2

Jumper A Settings ..........................................................................................

D-3

D-3

Jumper B Settings ..........................................................................................

D-4

xiv Contents

xv

Preface

This service and reference manual for NEC PowerMate® Professional Series computer systems contains hardware and interface information for users who need an overview of system design. The manual also includes system setup information, procedures for installing options, and illustrated parts lists. The manual is written for NEC-trained customer engineers, system analysts, service center personnel, and dealers.

The manual is organized as follows:

Section 1 — Technical Information , provides an overview of the system features, hardware design, interface ports, and internal devices. System specifications are listed, including dimensions, weight, environment, safety compliance, power consumption, and memory.

Section 2 — Setup and Operation , includes unpacking, setup, and operation information. It contains procedures for configuring the system through the Setup utility program and reinstalling the system software. This section includes procedures for restoring the operating system, various drivers, and application programs. Information on using the BIOS Update utility is also included.

Section 3 — Option Installation, provides installation procedures for adding optional expansion boards, diskette and hard disk storage devices, and system and video memory.

Section 4 — Maintenance and Troubleshooting, provides information on cleaning the system and identifying system malfunctions.

Section 5 — Repair, includes disassembly procedures along with an exploded view diagram of the system. Also included are parts lists for field-replaceable parts.

Appendix A — Connector Pin Assignments , provides a list of the system board’s internal and external connector pin assignments.

Appendix B — System Board Settings , includes information on setting jumpers for clearing passwords, resetting CMOS, disabling Setup access, and recovering from a corrupted BIOS.

Appendix C — Hard Disk Specifications, includes specifications for the IDE and SCSI hard disk drives provided with the computer.

Appendix D — CD-ROM Reader Specifications and Jumper Settings, provides specification and jumper setting information for the CD-ROM reader provided with the computer.

An Index is provided at the end of this guide.

xvii

Abbreviations

A

ampere

AC

alternating current

ASIC

application-specific integrated

 

circuit

AT

advanced technology (IBM PC)

ATA

AT attachment

ATAPI

AT attachment packet interface

BBS

Bulletin Board System

BCD

binary-coded decimal

BCU

BIOS Customized Utility

BIOS

basic input/output system

bit

binary digit

BUU

BIOS Upgrade Utility

bpi

bits per inch

bps

bits per second

C

capacitance

C

centigrade

cache

high-speed buffer storage

CAM

constantly addressable memory

CAS

column address strobe

CD-ROM

compact disk-ROM

CGA

Color Graphics Adapter

CGB

Color Graphics Board

CH

channel

clk

clock

cm

centimeter

CMOS

complementary metal oxide

 

semiconductor

COM

communication

CONT

contrast

CPGA

ceramic pin grid array

CPU

central processing unit

DAC

digital-to-analog converter

DACK

DMA acknowledge

db

decibels

DC

direct current

DIP

dual in-line package

DMA

direct memory access

DMAC

DMA controller

DOS

disk operating system

DRAM

dynamic RAM

ECC

error checking and correction

ECP

enhanced capabilities port (ECP)

EGA

Enhanced Graphics Adapter

EPP

Enhanced Parallel Port

EPROM

erasable and programmable ROM

EVGA

Enhanced Video Graphics Array

F

Fahrenheit

FAX

facsimile transmission

FCC

Federal Communications

 

Commission

FG

frame ground

FIFO

first-in/first-out

FM

frequency modulation

FRU

field-replaceable unit

ftp

file transfer protocol

GB

gigabyte

GND

ground

HEX

hexadecimal

HGA

Hercules Graphics Adapter

Hz

hertz

IC

integrated circuit

ID

identification

IDE

intelligent device electronics

in.

inch

IPB

illustrated parts breakdown

ISA

Industry Standard Architecture

I/O

input/output

IPC

integrated peripheral controller

ips

inches per second

IR

infrared

IRQ

interrupt request

K

kilo (1024)

k

kilo (1000)

xviii Abbreviations

KB

kilobyte

R/W

read/write

kg

kilogram

S

slave

kHz

kilohertz

SCSI

Small Computer System Interface

lb

pound

SG

signal ground

LED

light-emitting diode

SIMM

single inline memory module

M

mega

SVGA

Super Video Graphics Array

mA

milliamps

SW

switch

max

maximum

TSC

Technical Support Center

MB

megabyte

TTL

transistor/transistor logic

MDA

Monochrome Display Adapter

tpi

tracks per inch

MFM

modified frequency modulation

V

volt

MHz

megahertz

Vac

volts, alternating current

MIC

microphone

Vdc

volts, direct current

MIDI

musical instrument device

VESA

video electronics standards

 

interface

 

association

MPC

multimedia PC

VGA

Video Graphics Array

mm

millimeter

VRAM

video RAM

MPEG

Motion Picture Experts Group

W

watt

ms

millisecond

W

write

NC

not connected

WWW

world-wide web

NMI

Non-maskable Interrupt

 

 

ns

nanosecond

 

 

PAL

programmable array logic

 

 

PC

personal computer

 

 

PCI

Peripheral Component

 

 

 

Interconnect

 

 

PDA

personal digital assistant

 

 

PFP

plastic flat package

 

 

PIO

parallel input/output

 

 

pixel

picture element

 

 

PROM

programmable ROM

 

 

RAM

random-access memory

 

 

RAMDAC

RAM digital-to-analog converter

 

 

RGB

red green blue

 

 

RGBI

red green blue intensity

 

 

RM

retention mechanism

 

 

ROM

read-only memory

 

 

rpm

revolutions per minute

 

 

R

read

 

 

RTC

real-time clock

 

 

 

 

 

 

Section 1

Technical Information

This section provides technical information about PowerMate® Professional Series computers. PowerMate Professional Series computers are Intel® Pentium® II processorbased systems with MMX™ and cache memory enhancements.

Depending on the model, the PowerMate Professional Series computer comes with a Pentium II 233-MHz or 266-MHz microprocessor and the Windows® 95 or Windows NT® 4.0 operating system. Multimedia and SCSI configurations are available in six models as described in Table 1-1.

Table 1-1 PowerMate Professional Series System Configurations

 

 

Operating

System

 

 

Model Number

Processor

System

Memory

Video Memory

Hard Disk

 

 

 

 

 

 

MT-2550-24874X

233-MHz

Windows 95

32 MB

2 MB

3.2-GB IDE

 

Pentium II

 

 

synchronous

 

 

 

 

 

graphics RAM

 

 

 

 

 

(SGRAM) on

 

 

 

 

 

Matrox Mystique®

 

 

 

 

 

video board

 

MT-2560-24874X

266-MHz

Windows 95

32 MB

2 MB

3.2-GB IDE

 

Pentium II

 

 

synchronous

 

 

 

 

 

graphics RAM

 

 

 

 

 

(SGRAM) on

 

 

 

 

 

Matrox Mystique

 

 

 

 

 

video board

 

MT-2560-24874C

266-MHz

Windows NT

32 MB

2 MB

3.2-GB IDE

 

Pentium II

4.0

 

synchronous

 

 

 

 

 

graphics RAM

 

 

 

 

 

(SGRAM) on

 

 

 

 

 

Matrox Mystique

 

 

 

 

 

video board

 

MT-2550-24874C

233-MHz

Windows NT

32 MB

2 MB

3.2-GB IDE

 

Pentium II

4.0

 

synchronous

 

 

 

 

 

graphics RAM

 

 

 

 

 

(SGRAM) on

 

 

 

 

 

Matrox Mystique

 

 

 

 

 

video board

 

MT-2560-2784S

266-MHz

Windows NT

32 MB

4 MB video RAM

4.35-GB SCSI

 

Pentium II

4.0

 

(VRAM) on

 

 

 

 

 

Number Nine

 

Imagine™ 128 Series 2 video board

1-2 Technical Information

Table 1-1 PowerMate Professional Series System Configurations

 

 

Operating

System

 

 

Model Number

Processor

System

Memory

Video Memory

Hard Disk

 

 

 

 

 

 

MT-2560-2785S

266-MHz

Windows NT

64 MB

4 MB VRAM on

4.35-GB IDE

 

Pentium II

4.0

 

Number Nine

 

 

 

 

 

Imagine 128

 

 

 

 

 

Series 2 video

 

 

 

 

 

board

 

 

 

 

 

 

 

All PowerMate Professional Series configurations come with the following common hardware:

T3 1/2-inch diskette drive

T512-kilobyte (KB) burst-rate synchronous secondary cache (BSRAM)

Tsixteen-speed (maximum) CD-ROM reader

T8-watt (W) external speakers.

The PowerMate Professional SCSI configuration comes with the above features and an Adaptec SCSI controller board.

NOTE: All PowerMate Professional Series systems contain audio connectors on the system board that are accessible on the rear of the system unit.

The following paragraphs give an overview of the PowerMate Professional Series systems. Differences between the systems are noted as they occur.

Technical Information 1-3

SYSTEM CHASSIS

The chassis provides an enclosure for the system board, power supply, six PCI/ISA expansion slots, and six storage device slots. The expansion slots include two 8-/16-bit ISA slots, one shared PCI/ISA slot, and three 32-bit PCI slots. One PCI slot contains either a Matrox Mystique or a Number Nine Imagine 128 Series 2 video board, depending on the model.

The six storage device slots accommodate up to four accessible devices and two internal hard disk drive devices. The accessible devices include the standard one-inch high 3 1/2- inch 1.44-MB diskette drive and up to three 1.6-inch high 5 1/4-inch storage devices. The internal device slots support up to two 1-inch high 3 1/2-inch hard disks.

Figure 1-1 shows the front panel features and the locations of the accessible storage device slots in a system. Figure 1-2 shows the features on the rear panel of the system chassis.

Figure 1-1 System Controls and Storage Device Slots

NOTE: The Matrox Mystique video board installed in some models contains a video module feature connector, in addition to the standard VGA connector. The Number Nine Imagine 128 Series 2 video board installed in some models contains only the standard VGA connector.

Nec POWERMATE PROFESSIONAL SERVICE MANUAL

1-4 Technical Information

Figure 1-2 Rear Panel Features

SYSTEM BOARD

The system board includes the following features:

TIntel Pentium II microprocessor running at 233or 266-MHz (model dependent)

TIntel 82440FX PCI chipset used for PCI/ISA, memory, and peripheral control

TPC87308 Super I/O controller (integrates standard PC I/O functions: two serial ports, one EPP/ECP-capable parallel port, floppy disk interface, real time clock, CMOS RAM, keyboard controller, and support for an IrDA-compatible infrared interface)

TPCI and ISA peripheral connectors on the system board

TSupport for up to 256 MB of 60 nanosecond (ns) single in-line memory modules (SIMMs)

TIntel BIOS in a 2-MB flash memory device supports system setup and PCI autoconfiguration

TSound Blaster Pro™-compatible Yamaha audio chip

TExpansion slots for up to five add-in boards

¾Three dedicated PCI slots

¾Two dedicated ISA-bus slots

¾One combination slot for either a PCI or an ISA add-in board

Technical Information 1-5

NOTE: One expansion slot contains either a Matrox Mystique or a Number Nine Imagine 128 Series 2 video board as standard equipment. In SCSI models, a SCSI adapter board is also installed.

T200-watt power supply (switch-selectable for 115 and 230 Vac operation)

TTwo RS-232C-compatible 9-pin serial connectors

TOne multimode, 25-pin Centronics® -compatible parallel port

TTwo Universal Serial Bus (USB) connectors

TSix device slots:

¾One 1-inch high 3 1/2-inch slot (contains standard 1.44-MB diskette drive)

¾Three 1.6-inch high 5 1/4-inch slots (one slot contains the standard CD-ROM reader

¾Two internal 1-inch high 3 1/2-inch slots (one slot contains the standard hard disk)

TPS/2® -style keyboard and mouse connector

TSpeaker mounted on the system board

TPassword protection and padlock slot for system security

THardware management ASIC (NEC MagicEye™) chip mounted on the system board (see Section 2).

Table 1-2 lists the major chips on the system board. See Appendix A, “Connector Pin Assignments,” for a list of the system board connectors. See Appendix B, “System Board Settings,” for a description of system board switches.

1-6 Technical Information

Table 1-2 System Board Feature Components

Chip

Function

 

 

Pentium II Chip

233/66-MHz or 266/66-MHz Intel Pentium II

 

processor

82440FX Chipset:

 

82371SB PCI/ISA IDE

Provides interface between PCI and ISA bus;

Xccelerator (PIIX3)

supports up to four PCI/IDE devices;

 

mode 3 and mode 4 support; Logical block

 

addressing (LBA) and Extended Cylinder

 

Head Sector (ECHS) translation modes and

 

ATAPI devices on both IDE interfaces

82441FX PCI Bridge and

Provides CPU interface control and integrated

Memory Controller (PMC)

DRAM control; supports a fully synchronous

 

PCI bus interface plus CPU-to-DRAM and

 

PCI-to-DRAM data buffering

82442FX Data Bus Accelerator

Connects to the CPU data bus, memory data

(DBX)

bus, and PMC private data bus; works in

 

parallel with PMC to provide a high

 

performance memory subsystem for

 

Pentium II-based systems

PC87307 I/O Controller

Multifunction I/O device:

 

Multimode parallel port

 

-- Centronics-compatible (standard mode)

 

-- Enhanced capabilities port (ECP)

 

-- Enhanced parallel port (EPP)

 

Two RS-232C serial ports that support an

 

IrDA and Consumer IR compliant Infrared

 

interface

 

Integrated real-time clock with Century

 

calendar functionality and 242-byte

 

battery-backed CMOS RAM

 

Integrated 8042A keyboard controller

 

Flexible IRQ and DMA mapping; interfaces

 

are automatically configured during boot

 

up; the I/O controller can also be manually

 

configured in the Setup program

 

Supports industry-standard floppy

 

controller

 

 

Technical Information 1-7

Processor and Secondary Cache

The PowerMate Professional uses a Pentium II processor with an internal clock speed of 233 MHz or 266 MHz. The external speed of the 233-MHz and 266-MHz processors is 66 MHz.

Each processor has 32 KB of write-back primary cache and a math coprocessor. The 32-KB primary cache provides 16 KB for instructions and 16 KB for data.

The processor is an advanced pipelined 32-bit addressing, 64-bit data processor designed to optimize multitasking operating systems. The 64-bit registers and data paths support 64-bit addresses and data types.

To use the Pentium II processor’s power, the system features an optimized 64-bit memory interface and 512 KB of secondary write-back cache incorporated into the processor.

The processor is compatible with 8-, 16-, and 32-bit software written for the Intel386™, Intel486™, Pentium, and Pentium Pro processors. The Pentium II processor is contained on a Single Edge Contact (S.E.C.) cartridge that plugs into the system board at Slot 1, which is a 242-pin edge connector. The processor subsystem consists of the following components:

Tprocessor card (including the processor and secondary cache)

Tthermal plate

Tback cover.

When the processor subsystem is mounted in Slot 1, it is secured by a retention mechanism (RM) attached to the system board. The RM acts as an insertion guide and prevents movement of the processor after installation. The processor heatsink is also stabilized by supports that attach to the motherboard.

System BIOS

The system BIOS is from Intel/American Megatrends Incorporated (AMI) and provides ISA and PCI compatibility. The BIOS is contained in a 2-MB flash memory device on the system board. The BIOS provides the Power-On Self Test (POST), the system Setup program, a PCI and IDE auto-configuration utility, and BIOS recovery code.

The system BIOS is always shadowed. Shadowing allows any BIOS routine to be executed from fast 32-bit onboard DRAM instead of from the slower 8-bit flash device.

NEC’s Flash ROM allows fast, economical BIOS upgrades. NEC Flash ROMs are reprogrammable system and video EPROMs. With NEC’s Flash ROM, a ROM BIOS change is expedited in the following ways:

Tis fast and easily done using a Flash utility

Teliminates the expensive replacement of ROM BIOS chips, and reduces system maintenance costs

1-8 Technical Information

Treduces inadvertent system board damage that can take place when replacing ROMs

Tfacilitates adopting new technology while maintaining corporate standards

Tgives network administrators company-wide control of BIOS revisions.

The BIOS programs execute the Power-On Self-Test, initialize processor controllers, and interact with the display, diskette drives, hard disks, communication devices, and peripherals. The system BIOS also contains the Setup utility. The hardware setup default copies the ROM BIOS into RAM (shadowing) for maximum performance.

The Flash ROM allows the system and video BIOS to be upgraded with the BIOS Update utility, without removing the ROM (see Section 2 for further information on the BIOS Update utility). The Flash ROM supports the reprogramming of the system BIOS and the video BIOS.

The system memory map is shown in Table 1-3.

Table 1-3 System Memory Map

Memory Space

Size

 

Function

 

 

 

 

100000-8000000

130048

KB

Extended memory (configurable/upgradable)

E0000-FFFFF

64 KB

 

AMI System BIOS

EC000-EFFFF

16 KB

 

FLASH boot block (available as UMB)

EA000-EBFFF

8 KB

 

ECSD (Plug and Play configuration area)

E9000-E9FFF

4 KB

 

Reserved for BIOS

E8000-E8FFF

4 KB

 

OEM logo (available as UMB)

E0000-E7FFF

32 KB

 

BIOS reserved (currently available as UMB)

C8000-DFFFF

96 KB

 

Available HI DOS memory (open to ISA and PCI

 

 

 

bus)

A0000-C7FFF

160 KB

Available HI DOS memory (normally reserved for

 

 

 

Video BIOS)

9FC00-9FFFF

1 KB

 

Extended BIOS data

80000-9FBFF

127 KB

Extended conventional memory

00000-7FFFF

512 KB

Conventional base memory

 

 

 

 

Technical Information 1-9

I/O Addressing

The processor communicates with I/O devices by I/O mapping. The hexadecimal (hex) addresses of I/O devices are listed in Table 1-4.

 

 

Table 1-4 I/O Address Map

 

 

 

 

 

Address (Hex)

I/O Device Name

 

 

 

 

 

 

0000-000F

PIIX3 - DMA controller 1 (channel 0-3)

 

 

0020-0021

PIIX3 - Interrupt controller 1

 

 

002E-002F

87308B I/O base configuration registers

 

 

0040-0043

PIIX3 - Timer 1

 

 

0048-004B

PIIX3 - Timer 2

 

 

0060

Keyboard controller byte - Reset IRQ

 

 

0061

PIIX3 - NMI, speaker control

 

 

0064

Keyboard controller, command/status byte

 

 

0070, bit 7

PIIX3 - Enable NMI

 

 

0070, bits 6 through 0 PIIX3 - Real time clock, address

 

 

0071

PIIX3 - Real time clock, data

 

 

0078-0079

Reserved - board configuration

 

 

0080-008F

PIIX3 - DMA page registers

 

 

00A0-00A1

PIIX3 - Interrupt controller 2

 

 

00C0-00DE

PIIX3 - DMA controller 2

 

 

00F0

Reset numeric error (numeric data processor)

 

 

0170-0177

Secondary IDE channel

 

 

01F0-01F7

Primary IDE channel

 

 

0200-0207

Game port

 

 

0220-022F

Yamaha audio

 

 

0278-027F

Parallel port 2

 

 

02F8-02FF

Onboard serial port 2

 

 

0330-0331

MPU-401 (MIDI)

 

 

0376

Secondary IDE channel command port

 

 

0377

Secondary IDE channel status port

 

 

0378-037F

Parallel port 1

 

 

0388-038B

Yamaha audio

 

 

03BC-03BF

Parallel port 3

 

 

 

 

 

 

 

 

 

1-10 Technical Information

 

Table 1-4 I/O Address Map

 

 

Address (Hex)

I/O Device Name

 

 

03E8-03EF

Serial port 3

03F0-03F5

Floppy channel 1

03F6

Primary IDE channel command port

03F7 (write)

Floppy channel 1 command

03F7, bit 7

Floppy disk change channel 1

03F7, bit 6 through 0 Primary IDE channel status port

03F8-03FF

Onboard serial port 1

04D0-04D1

Edge/level triggered

LPT + 400h

ECP port, LPT + 400h

0608-060B

Yamaha audio

0CF8*

PCI configuration address register

0CF9

Turbo and reset control register

0CFC-0CFF*

PCI configuration data register

FF00-FF07

IDE bus master register

FFA0-FFA7

IDE primary channel

0FF0-0FF7

Yamaha audio

 

 

* Only accessible by DWORD accesses.

System Memory

Configurations ship with 32 MB or 64 MB of memory: 640 KB of base memory and 31 MB or 63 MB of extended memory. System memory can be expanded up to 256 MB using optional single in-line memory modules (SIMMs) installed in SIMM sockets on the system board.

The memory configuration consists of two banks (bank 0 and bank 1) with two sockets each. The memory sockets accept 32-bit, 60-ns for faster, 4-, 8-, 16-, 32-, or 64-MB SIMMs. The sockets accept Extended Data Out (EDO) mode or Fast Page (FM) mode SIMMs and support parity, non-parity, or error checking and correction (ECC).

The SIMMs are 1 MB x 32 bit (4 MB), 2 MB x 32 bit (8 MB), 4 MB x 32 bit (16 MB), 8 MB x 32 bit (32 MB), and 16 MB x 32 bit (64 MB). When the standard SIMMs are removed, four 64-MB SIMMs may be installed for a total of 256 MB.

CAUTION: SIMMs must match the tin metal plating used on the system board SIMM sockets. When adding SIMMs, use tin-plated SIMMs only.

Technical Information 1-11

SIMMs install directly in the four sockets on the system board. The four sockets are assigned as Bank 0 (2 sockets) and Bank 1 (2 sockets). All configurations have two SIMMs installed in Bank 1.

SIMMs must be installed in pairs of the same memory type and size. Both sockets must be populated within a bank for the system to work. No switch or jumper settings are required when the memory is changed. The system BIOS automatically detects the SIMMs. See “Checking the Memory in the System” in Section 3 for the valid configurations.

Interrupt Controller

The interrupt controller operates as an interrupt manager for the entire system environment. The controller accepts requests from peripherals, issues interrupt requests to the processor, resolves interrupt priorities, and provides vectors for the processor to determine which interrupt routine to execute. The interrupt controller has priority assignment modes that can be reconfigured at any time during system operations.

The interrupt levels are described in Table 1-5. Interrupt-level assignments 0 through 15 are listed in order of decreasing priority. See Section 2, “Setup and Operation,” for information on changing the interrupts using Setup.

Table 1-5 Interrupt Level Assignments

Interrupt Priority

Interrupt Device

 

 

NMI

I/O channel check

IRQ00

Reserved, Interval Timer

IRQ01

Reserved, Keyboard buffer full

IRQ02

Reserved, Cascade interrupt from slave

IRQ03

Serial Port 2 (COM2)

IRQ04

Serial Port 1 (COM1)

IRQ05

Audio/LPT2 plug and play option/user-available

IRQ06

Diskette Drive Controller

IRQ07

Parallel Port 1 (LPT1)

IRQ08

Real-time clock

IRQ09

User-available

 

 

1-12 Technical Information

Table 1-5 Interrupt Level Assignments

Interrupt Priority

Interrupt Device

 

 

IRQ10*

USB (SCSI board for SCSI configurations)

IRQ11*

Video Board

IRQ12

Onboard mouse port (available if no PS/2 mouse)

IRQ13

Reserved, Math Coprocessor

IRQ14

Primary IDE

IRQ15

Secondary IDE if present, or else user-available

 

 

*These interrupts are selected and used by the installed expansion boards.

Plug and Play

The system comes with a Plug and Play BIOS that supports Plug and Play technology. Plug and Play eliminates complicated setup procedures for installing Plug and Play expansion boards. With Plug and Play, adding a Plug and Play expansion board is done by turning off the system, installing the board, and turning on the system. There are no jumpers to set and no system resource conflicts to resolve. Plug and Play automatically configures the board.

ISA Bus

The system board uses the ISA bus for transferring data between the processor and I/O peripherals and expansion boards. The ISA bus supports 16-bit data transfers and typically operates at 8 MHz. ISA expansion slot connector pin assignments are provided in Appendix A.

PCI Local Bus

The 32-bit PCI-bus is the primary I/O bus for the system. The PCI-bus is a highly integrated I/O interface that offers the highest performance local bus available for the Pentium II processor. The bus supports burst modes that send large chunks of data across the bus, allowing fast displays of high-resolution images.

The high-bandwidth PCI-bus eliminates the data bottleneck found in traditional systems, maintains maximum performance at high clock speeds, and provides a clear upgrade path to future technologies.

PCI expansion slot connector pin assignments are provided in Appendix A.

Technical Information 1-13

PCI/IDE Ports

The system board provides two high-performance PCI/IDE ports: a primary channel and a secondary channel. Each port supports up to two devices for a total of four IDE devices. The primary PCI/IDE port has an enhanced IDE interface that supports PIO Mode 4 devices with 16 MB per second 32-bit wide data transfers on the high-performance PCI local bus. The installed hard disk drive is connected to the primary PCI/IDE port. In multimedia configurations, the installed CD-ROM reader is connected to the secondary PCI/IDE port.

Parallel Interface

The system has a 25-pin parallel bidirectional enhanced parallel port on the system board. Port specifications conform to the IBM-PC standards. The port supports Enhanced Capabilities Port (ECP) and Enhanced Parallel Port (EPP) modes for devices that require ECP or EPP protocols. The protocols allow high-speed bidirectional transfer over a parallel port. This increases parallel port functionality by supporting more devices.

The BIOS has automatic ISA printer port sensing. If the BIOS detects an ISA printer port mapped to the same address, the built-in printer port is disabled. The BIOS also sets the first parallel interface port it finds as LPT1 and the second port it finds as LPT2. The interrupt is selected to either IRQ5 or IRQ7 via Setup. Software-selectable base addresses are 3BCh, 378h, and 278h.

I/O addresses and interrupts for the parallel port are given in Table 1-6.

NOTE: Any interrupts used for the built-in parallel port are not available for ISA parallel ports.

Table 1-6 Parallel Port Addressing and Interrupts

Starting I/O Address

Interrupt Level

Port

 

 

 

378

IRQ05

LPT1

278

IRQ05

LPT1 or LPT2

3BC

IRQ05

LPT1 or LPT2

378

IRQ07

LPT1

278

IRQ07

LPT1 or LPT2

3BC

IRQ07

LPT1 or LPT2

 

 

 

Parallel interface signals are output through the system board’s 25-pin, D-subconnector. This connector is located at the rear of the system unit. Pin locations for the parallel interface connector are given in Appendix A.

1-14 Technical Information

Serial Interface

The system has two 16C550 UART-compatible serial ports (COM1 and COM2) integrated on the I/O controller. The serial ports support the standard RS-232C interface and the IR interface (see Table 1-7). The buffered high-speed serial ports support transfer rates up to 19.2 KB. These ports allow the installation of high-speed serial devices for faster data transfer rates.

I/O addresses and interrupt levels for the two channels are given in Table 1-7. The interrupt level is selectable via Setup to either IRQ3 or IRQ4. Software selectable base addresses are 3F8h, 2F8h, 3E8h, and 2E8h.

NOTE: Any interrupts used for the built-in serial ports are not available for ISA parallel ports.

Table 1-7 Serial Port Addressing and Interrupts

Starting I/O Address

Interrupt Level

Port

 

 

 

3F8h

IRQ04

COM1

2F8h

IRQ03

COM2*

3E8h

IRQ04

COM3

2E8h

IRQ03

COM4

 

 

 

* Used for IrDA data transfer

 

 

See Section 2, “Setup and Operation,” for information on resetting the port through Setup.

Serial interface specifications include:

TBaud rate up to 19.2 KB per second

TWord length - 5, 6, 7, or 8 bits

TStop bit - 1, 1.5, or 2 bits

TStart bit - 1 bit

TParity bit - 1 bit (odd parity or even parity).

Serial interface signals are output through the system board’s 9-pin, D-subconnector. The connectors are located at the rear of the system unit. Pin locations for the serial interface connector are shown in Appendix A.

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