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Sun Ultra 2 Series Reference
Manual

Sun Microsystems Computer Company
A Sun Microsystems, Inc. Business

901 San Antonio Road Palo Alto, CA 94303-4900 USA
650 960-1300
fax [phone]

Part No.: 802-2562-11
Revision A, May 1996

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1997 Sun Microsystems, Inc., 901SanAntonio Road, Palo Alto,California94303-4900 U.S.A.
All rights reserved.
This product or document isprotectedbycopyright and distributed underlicensesrestrictingits use, copying, distribution,anddecompilation.

No part of this productordocument may be reproduced in any formbyany means without priorwrittenauthorization of Sun anditslicensors,
if any.

Portions of this product maybederived from the UNIX® system,licensedfromNovell, Inc., and fromtheBerkeley 4.3 BSD system, licensed
fromthe University of California.UNIXis a registered trademark in theUnitedStates and in othercountriesand is exclusively licensedby
X/Open Company Ltd. Third-party software,includingfonttechnology in this product,isprotectedby copyright and licensedfromSun’s
suppliers. RESTRICTED RIGHTS: Use, duplication,or disclosure by the U.S.Governmentis subject to restrictions ofFAR 52.227-14(g)(2)(6/87)
and FAR52.227-19(6/87),or DFAR252.227-7015(b)(6/95) and DFAR227.7202-3(a).

Sun, Sun Microsystems, the Sunlogo,and Solaris are trademarks orregisteredtrademarksof Sun Microsystems, Inc. intheUnited States and in
other countries. All SPARCtrademarks are used underlicenseand are trademarks or registered trademarks of SPARCInternational, Inc. in the
United States and in othercountries.Products bearing SPARCtrademarks are based upon anarchitecturedevelopedby Sun Microsystems, Inc.

The OPEN LOOK® and Sun™GraphicalUser Interfaces were developedbySun Microsystems, Inc. for itsusersand licensees. Sun
acknowledges the pioneering efforts ofXeroxCorporationin researching and developing theconceptof visual or graphicaluserinterfaces for
the computer industry.Sunholds a nonexclusive licensefromXeroxtothe Xerox Graphical UserInterface,which license also covers Sun’s
licensees who implement OPEN LOOKGUIs and otherwise comply withSun’swritten license agreements.

THIS PUBLICATIONISPROVIDED “AS IS” WITHOUTWARRANTY OF ANY KIND,EITHEREXPRESS OR IMPLIED, INCLUDING, BUT
NOT LIMITED TO, THE IMPLIEDWARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULARPURPOSE,OR NON­INFRINGEMENT.

Copyright 1997 Sun Microsystems, Inc.,901San Antonio Road, PaloAlto,Californie 94303-4900 U.S.A. Tousdroits réservés.
Ce produit ou document estprotégéparun copyright et distribuéavecdes licences qui enrestreignentl’utilisation,la copie et la décompilation.

Aucune partie de ce produitoude sa documentation associéenepeut être reproduite sous aucune forme,parquelque moyen que ce soit,sans
l’autorisation préalable et écrite deSunet de ses bailleursdelicence, s’il y ena.

Des parties de ce produitpourrontêtrederivées du système UNIX® licenciéparNovell, Inc. et dusystèmeBerkeley 4.3 BSD licenciépar
l’Université de Californie. UNIX estunemarque enregistrée aux Etats-Unis etdansd’autrespays, et licenciée exclusivementparX/Open
Company Ltd. Le logiciel détenupardes tiers, et quicomprendla technologie relative aux policesdecaractères,est protégé par un copyrightet
licencié par des fournisseurs deSun.

Sun, Sun Microsystems, le logoSun,et Solaris sont desmarquesdéposéesou enregistrées de Sun Microsystems,Inc.aux Etats-Unis et dans
d’autrespays. TouteslesmarquesSPARC,utiliséessouslicence, sont des marquesdéposéesouenregistrées de SPARCInternational,Inc. aux
Etats-Unis et dans d’autres pays.Lesproduitsportant les marques SPARCsont basés sur unearchitecturedéveloppéepar Sun Microsystems,
Inc.

Les utilisateurs d’interfaces graphiques OPENLOOK®et Sun™ ont étédéveloppésde Sun Microsystems, Inc. poursesutilisateurs et licenciés.
Sun reconnaît les efforts de pionniersdeXerox Corporation pour la rechercheetledéveloppement du concept desinterfacesd’utilisation
visuelle ou graphique pour l’industriedel’informatique. Sun détient unelicencenon exclusive de Xeroxsurl’interfaced’utilisation graphique,
cette licence couvrant aussi leslicenciésde Sun qui mettentenplace les utilisateurs d’interfacesgraphiquesOPEN LOOK et quienoutrese
conforment aux licences écrites deSun.

CETTE PUBLICATIONESTFOURNIE "EN L’ETAT"SANS GARANTIE D’AUCUNE SORTE, NI EXPRESSENIIMPLICITE, Y COMPRIS, ET
SANS QUE CETTE LISTE NESOIT LIMITATIVE, DES GARANTIESCONCERNANTLA VALEURMARCHANDE,L’APTITUDE DES
PRODUITS A REPONDRE A UNEUTILISATIONPARTICULIEREOULE FAITQU’ILSNE SOIENT PASCONTREFAISANTSDEPRODUITS
DE TIERS.

Please
Recycle

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Contents

Preface ix

How This Book Is Organized x
Using UNIX Commands x
Typographic Conventions xi
Shell Prompts xi
Related Books xiii
Sun Documentation on the Web xiii
Sun Welcomes Your Comments xiii

1. Back Panel Connectors 1-1

1.1 Connector Layout 1-1

1.2 Serial Connectors 1-3

1.3 Parallel Connector 1-4

1.4 Keyboard/Mouse Connector 1-5

1.5 Media Independent Interface (MII) Connector 1-6

1.6 Twisted-Pair Ethernet (TPE) Connector 1-7

1.7 SCSI Connector 1-8

1.7.1 SCSI Implementation 1-9

1.7.2 SCSI Cabling and Configuration 1-10

1.8 Audio Ports 1-11

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iii

1.9 Audio Specifications 1-12

1.10 Graphics Card 13W3 Video Connector 1-13

2. 10BASE-T Twisted-Pair
Ethernet Link Test 2-1

2.1 Overview 2-1

2.2 Technical Discussion 2-3

2.3 Troubleshooting 2-4

2.4 Moves and Changes 2-5

2.5 Checking or Disabling the Link Test 2-5

2.6 Enabling the Link Test 2-6

3. Modem Setup Specifications 3-1

3.1 Setting Up the Modem 3-1

3.2 Serial Port Speed Change 3-2

3.3 Recommendations 3-2

3.3.1 Cable 3-2

3.3.2 Modem Switch Settings (AT Commands) 3-3

4. Main Logic Board Jumpers 4-1

4.1 Identifying Jumpers 4-3

4.2 Flash PROM Jumpers 4-3

4.3 Serial Port Jumpers 4-4

5. System Specifications 5-1

5.1 Power 5-1

5.2 Environment 5-2

5.3 Physical Specifications 5-3

5.4 Memory Mapping 5-3

iv Sun Ultra 2 Series Reference Manual • May 1996

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Figures

FIGURE P-1 Ultra 2 Series Nameplates ix
FIGURE P-2 Ultra Enterprise 2 Nameplate x
FIGURE 1-1 Back Panel Switches and Connectors 1-2

FIGURE 1-2 DB-25 Serial Connectors 1-3
FIGURE 1-3 DB-25 Parallel Connector 1-4
FIGURE 1-4 DIN-8 Keyboard/Mouse Connector 1-5
FIGURE 1-5 40-Pin Miniature-D MII Connector 1-6
FIGURE 1-6 RJ-45 TPE Connector 1-7
FIGURE 1-7 68-Pin SCSI Connector 1-8
FIGURE 1-8 Connecting External Mass Storage Devices 1-10
FIGURE 1-9 Audio Port Locations 1-11
FIGURE 1-10 13W3 Video Connector 1-13
FIGURE 2-1 Hosts and Hub in a Local Area Network 2-2
FIGURE 2-2 Ensuring Host-Hub Communication in a 10BASE-T Network 2-3
FIGURE 4-1 Jumper Locations on the Main Logic Board 4-2
FIGURE 4-2 Identifying Jumper Pins 4-3

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vi Sun Ultra 2 Series Reference Manual • May 1996

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Tables

TABLE P-1 Typographic Conventions xi
TABLE P-2 Shell Prompts xi
TABLE P-3 Related Books xiii
TABLE 1-1 Serial Connector Pinouts, RS-423/RS-232 1-3

TABLE 1-2 Parallel Connector Pinouts 1-4
TABLE 1-3 Keyboard/Mouse Connector Pinouts 1-5
TABLE 1-4 MII Connector Pinouts 1-6
TABLE 1-5 TPE Connector Pinouts 1-7
TABLE 1-6 68-Pin SCSI Connector Pinout 1-8
TABLE 1-7 Audio Port Signals 1-11
TABLE 1-8 Audio Port Functions 1-11
TABLE 1-9 Audio Inputs and Output 1-12
TABLE 1-10 Internal Monaural Speaker Specifications 1-12
TABLE 1-11 13W3 Video Connector Pinouts 1-13
TABLE 4-1 Flash PROM Jumper Settings 4-4
TABLE 4-2 Serial Port Jumper Settings 4-4
TABLE 5-1 Power Specifications 5-1
TABLE 5-2 Environmental Specifications (Operating) 5-2
TABLE 5-3 Environmental Specifications (Nonoperating) 5-2
TABLE 5-4 Dimensions and Weight 5-3

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vii

TABLE 5-5 Physical Clearances 5-3
TABLE 5-6 Main Logic Board Memory Mapping 5-3

viii Sun Ultra 2 Series Reference Manual • May 1996

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Preface

The Sun Ultra 2 Series Reference Manual contains useful information about the use
and maintenance of a Sun

This book is for use with Ultra 2, Ultra 2 Creator, Ultra 2 Creator 3D, and Ultra
Enterprise 2 systems only.

The nameplate on your system front panel must be like the nameplate(s) shown in

FIGURE P-1 or FIGURE P-2.

™ Ultra™ 2 Series system.

FIGURE P-1 Ultra 2 Series Nameplates

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ix

FIGURE P-2 Ultra Enterprise 2 Nameplate

How This Book Is Organized

Chapter 1 provides the location of each back panel connector and gives the pinouts
for each connector.

Chapter 2 presents a full tutorial about connecting the system to a 10BASE-T
twisted-pair Ethernet (TPE} local area network (LAN).

Chapter 3 gives modem settings for Sun Ultra 2 Series systems used in specific
network telecommunication applications.

Chapter 4 gives the locations and pin definitions of user-configurable main-logic
board jumpers.

Chapter 5 gives system requirements about power and environment, and also gives
system dimension, weight, and memory mapping specifications.

Using UNIX Commands

This document may not contain information on basic UNIX® commands and
procedures such as shutting down the system, booting the system, and configuring

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See one or more of the following for this information:

■ Solaris 2.x Handbook for SMCC Peripherals (If you are incorporating Solaris 2.x software

commands in your document, delete this sentence.)

■ AnswerBook™ online documentation for the Solaris™ 2.x software environment

■ Other software documentation that you received with your system

Typographic Conventions

TABLEP-1 Typographic Conventions

Typeface or
Symbol Meaning Examples

AaBbCc123 The names of commands, files,

and directories; on-screen
computer output.

AaBbCc123 What you type, when

contrasted with on-screen
computer output.

AaBbCc123 Book titles, new words or

terms, words to be emphasized.
Command-line variable;
replace with a real name or
value.

Edit your .login file.
Use ls -a to list all files.

% You have mail.

% su
Password:

Read Chapter 6 in the User’s Guide.
These are called class options.
You must be root to do this.
To delete a file, type rm filename.

Shell Prompts

TABLEP-2 Shell Prompts

Shell Prompt

C shell machine_name%

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xi

TABLEP-2 Shell Prompts

Shell Prompt

C shell superuser machine_name#
Bourne shell and Korn shell $
Bourne shell and Korn shell superuser #

xii Sun Ultra 2 Series Reference Manual • May 1996

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Related Books

The following documents contain topics that relate to the information in the Sun
Ultra 2 Series Reference Manual.

TABLEP-3 Related Books

Application Title Part Number

Installation Sun Ultra 2 Series Hardware Setup Instructions 802-5933
Installation Sun Ultra 2 Series Installation Guide 802-5934
Service Sun Ultra 2 Series Service Manual 802-2561

Sun Documentation on the Web

The docs.sun.com web site enables you to access Sun technical documentation on
the World Wide Web. You can browse the docs.sun.com archive or search for a
specific book title or subject at:

http://docs.sun.com.

Sun Welcomes Your Comments

We are interested in improving our documentation and welcome your comments
and suggestions. You can email your comments to us at:

[e-mail].
Please include the part number of your document in the subject line of your email.

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xiii

xiv Sun Ultra 2 Series Reference Manual • May 1996

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CHAPTER

1

Back Panel Connectors

1.1 Connector Layout

See the following figure.

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1-1

Serial Connectors
RS-423/RS-232

Keyboard/
Mouse
Connector

Power
On/Standby
Switch

Graphics/Video
Output — UPA Slot

UPA Slot

MII
Connector

SBus Slots 1, 0

Parallel
Connector

SBus Slots 3, 2

SCSI
Connector

TPE
Connector

Audio Connectors

Headphones — Line Out — Line In — Microphone

FIGURE 1-1 Back Panel Switches and Connectors

1-2 Sun Ultra 2 Series Reference Manual • May 1996

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1.2 Serial Connectors

113

25 14

25 14

FIGURE 1-2 DB-25 Serial Connectors

TABLE1-1 Serial Connector Pinouts, RS-423/RS-232

Pin Function I/O Signal Description

1 none none Not connected
2 TxD O Transmit Data
3 RxD I Receive Data
4 RTS O Ready To Send
5 CTS I Clear To Send
6 DSR I Data Set Ready
7 Gnd Signal Ground
8 DCD I Data Carrier Detect
9-14 none none Not connected
15 TRxC I Transmit Clock
16 none none Not connected
17 RTxC I Receive Clock
18-19 none none Not connected
20 DTR O Data Terminal

21-23 none none Not connected
24 TxC O Transmit Clock
25 none none Not connected

A

113

B

Ready

Chapter 1 Back Panel Connectors 1-3

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1.3 Parallel Connector

25 14

FIGURE 1-3 DB-25 Parallel Connector

TABLE1-2 Parallel Connector Pinouts

Pin Description Pin Description

1 Data_Strobe_L 14 nAutoFd
2 Data[1] 15 nFault
3 Data[2] 16 nInit
4 Data[3] 17 nSelectln
5 Data[4] 18 Signal Ground
6 Data[5] 19 Signal Ground
7 Data[6] 20 Signal Ground
8 Data[7] 21 Signal Ground
9 Data[8] 22 Signal Ground
10 nAck 23 Signal Ground
11 Busy 24 Signal Ground
12 PError 25 Signal Ground
13 Select

113

1-4 Sun Ultra 2 Series Reference Manual • May 1996

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1.4 Keyboard/Mouse Connector

7

68

345

12

FIGURE 1-4 DIN-8 Keyboard/Mouse Connector

TABLE1-3 Keyboard/Mouse Connector Pinouts

Pin Description Pin Description

1 Ground 5 Keyboard Out
2 Ground 6 Keyboard In
3 +5 VDC 7 Power Key In
4 Mouse In 8 +5 VDC

Note – All signals are standard TTL levels. The +5V supply is fuse-protected.

Chapter 1 Back Panel Connectors 1-5

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1.5 Media Independent Interface (MII)
Connector

20
40

FIGURE 1-5 40-Pin Miniature-D MII Connector

TABLE1-4 MII Connector Pinouts

Pin Function Pin Function

1 +5V 21 +5V
2 MDIO 22 Signal Ground
3 MDC 23 Signal Ground
4 RXD<3> 24 Signal Ground
5 RXD<2> 25 Signal Ground
6 RXD<1> 26 Signal Ground
7 RXD<0> 27 Signal Ground
8 RX_DV 28 Signal Ground
9 RX_CLK 29 Signal Ground
10 RX_ER 30 Signal Ground
11 TX_ER 31 Signal Ground
12 TX_CLK 32 Signal Ground
13 TX_EN 33 Signal Ground
14 TXD<0> 34 Signal Ground
15 TXD<1> 35 Ground
16 TXD<2> 36 Ground
17 TXD<3> 37 Ground

1
21

1-6 Sun Ultra 2 Series Reference Manual • May 1996

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TABLE1-4 MII Connector Pinouts (Continued)

Pin Function Pin Function

18 COL 38 Signal Ground
19 CRS 39 Signal Ground
20 +5V 40 +5V

1.6 Twisted-Pair Ethernet (TPE) Connector

18

FIGURE 1-6 RJ-45 TPE Connector

TABLE1-5 TPE Connector Pinouts

Pin Description Pin Description

1 Transmit Data + 5 Common Mode

Termination
2 Transmit Data - 6 Receive Data ­3 Receive Data + 7 Common Mode

Termination
4 Common Mode

Termination

8 Common Mode

Termination

Chapter 1 Back Panel Connectors 1-7

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1.7 SCSI Connector

34
68

FIGURE 1-7 68-Pin SCSI Connector

TABLE1-6 68-Pin SCSI Connector Pinout

Pin Signal Name Pin Signal Name

1 Ground 21 Ground
2 Ground 22 Ground
3 Ground 23 Ground
4 Ground 24 Ground
5 Ground 25 Ground
6 Ground 26 Ground
7 Ground 27 Ground
8 Ground 28 Ground
9 Ground 29 Ground
10 Ground 30 Ground
11 Ground 31 Ground
12 Ground 32 Ground
13 Ground 33 Ground
14 Ground 34 Ground
15 Ground 35 -DB<12>
16 Ground 36 -DB<13>
17 TERMPWR 37 -DB<14>
18 TERMPWR 38 -DB<15>
19 Not connected 39 -PAR<1>
20 Ground 40 -DB<0>
41 -DB<1> 63 -REQ
42 -DB<2> 53 Reserved

1

35

1-8 Sun Ultra 2 Series Reference Manual • May 1996

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TABLE1-6 68-Pin SCSI Connector Pinout (Continued)

Pin Signal Name Pin Signal Name

43 -DB<3> 54 Ground
44 -DB<4> 55 -ATN
45 -DB<5> 56 Ground
46 -DB<6> 57 -BSY
47 -DB<7> 58 -ACK
48 -PAR<0> 59 -RST
49 Ground 60 -MSG
50 TERM.DIS 64 -IO
51 TERMPWR 65 -DB<8>
52 TERMPWR 66 -DB<9>
61 -SEL 67 -DB<10>
62 -CD 68 -DB<11>

Note – All signals shown in TABLE 1-6 are active low.

1.7.1 SCSI Implementation

■ Single-ended

■ 16-bit (wide SCSI) with parity

■ 20 MBytes/sec Fast Wide SCSI

■ Supports 16 SCSI addresses:

■ Target 0-6 and 8-F for devices

■ Target 7 reserved for SCSI host adapter on main-logic board

■ Supports up to 3 internal SCSI drives:

■ SCSI disk drive target 0 (lower drive slot)

■ SCSI disk drive target 1 (upper drive slot)

■ SCSI CD-ROM drive target 6 or SCSI tape drive target 5

■ External 8-bit and 16-bit SCSI devices supported via 68-pin SCSI connector

Chapter 1 Back Panel Connectors 1-9

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1.7.2 SCSI Cabling and Configuration

When mixing 8-bit and 16-bit SCSI devices on the same physical SCSI bus, follow
these cabling and configuration guidelines to insure proper device addressing and
operation:

■ If all external mass storage devices use 68-pin connectors, connect all non-Sun

devices to the Ultra 2 Series system first and follow them with Sun devices. Sun
devices use autotermination.

■ If external mass storage devices consist of 68-pin Sun devices and 50-pin devices,

connect the Sun 68-pin devices to the Ultra 2 Series system first and terminate the
daisy chain with the 50-pin device and its terminator.

See the following figure for a summary of cabling and configuration guidelines.

Ultra 2 Non-Sun Sun

series device device device

68—68

Ultra 2

series device device device

68—68

FIGURE 1-8 Connecting External Mass Storage Devices

Non-Sun

68—68

68—68

68—68

Sun

68—50

Adapter cable

Sun

50-pin

T

Terminator

1-10 Sun Ultra 2 Series Reference Manual • May 1996

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1.8 Audio Ports

FIGURE 1-9 Audio Port Locations

All audio ports use EIA standard 3.5-mm (0.125-inch) jacks.

TABLE1-7 Audio Port Signals

Headphones Line Out Line In Microphone

Tip Left Channel Left Channel Left Channel Left Channel
Ring (Center) Right Channel Right Channel Right Channel Right Channel
Shield Ground Ground Ground Ground

Audio Ports:
Headphones — Line Out — Line In — Microphone

TABLE1-8 Audio Port Functions

Port Function

Headphones Connects stereophonic headphones for private listening of audio

output

Line Out Connects the system audio output to an external stereophonic

amplifier and loudspeakers

Line In Connects external stereophonic audio sources such as a compact

disc player or cassette tape player to the system

Microphone Connects the SunMicrophone II (or other suitable microphone

the system

Chapter 1 Back Panel Connectors 1-11

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1

)to

1. The Ultra 2 Series microphone port accepts stereophonic input; however, the Sun Microphone II is a mono­phonic device. Note also that the older SunMicrophone is not compatible with the Ultra 2 Series system.

1.9 Audio Specifications

The specifications in the following table assume use of the Audio Tool format setting
“CD-ROM or DAT” selected.
specifications.

The microphone input specifications are for the SunMicrophone II.

TABLE 1-10 lists the internal monaural speaker

TABLE1-9

Stereo I/Os Specifications

Line In 2V typical, 4V max.; 5-50-ohm impedance
Frequency Response 20 Hz-17 kHz +/- 0.5 dB
Internal CD Input

Input Level 0.1 percent Vrms typical at 10 kohms;

Distortion 0.01 percent, typical at 1 kHz
S/N Ratio 84 dB, typical IEC 179 A-weighted
Frequency

Response

Microphone Input 15 mV typical, 0.6-1.0 kohm impedance;

Headphones Output 1V typical, 2.4V max.; 16 kohms to 1 kohm impedance
Line Out 1V typical, 2.4V max.; 5-50 kohms impedance

TABLE1-10 Internal Monaural Speaker Specifications

Speaker Specifications

Power Output 1.5W ave., 3W peak
Distortion 0.02 percent typical at 1 kHz
Impedance 16 ohms +/- 20 percent
Frequency Response 150 Hz-17 kHz +/- 0.5 dB

Audio Inputs and Output

2Vpp max.

20 Hz-17 kHz +/- 0.5 dB

+5 VDC input bias via a 2.2 kohms resistor

1-12 Sun Ultra 2 Series Reference Manual • May 1996

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1.10 Graphics Card 13W3 Video Connector

15

A1 A2 A3

610

FIGURE 1-10 13W3 Video Connector

The graphics card for your system provides the 13W3 video connector for
transmitting video output signals from the system unit to the monitor.

See the following table for 13W3 video connector pinouts.

TABLE1-11 13W3 Video Connector Pinouts

Pin Function I/O Level

A1 Red O Analog
A2 Green O Analog
A3 Blue O Analog
1 Serial Read TTL
2 Vert Sync O TTL
3 Sense <0> I TTL
4 Ground GND
5 Comp Sync O TTL
6 Horiz Sync O TTL
7 Serial Write TTL
8 Sense <1> I TTL
9 Sense <2> I TTL
10 Ground GND

Chapter 1 Back Panel Connectors 1-13

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1-14 Sun Ultra 2 Series Reference Manual • May 1996

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CHAPTER

2

10BASE-T Twisted-Pair
Ethernet Link Test

Read this chapter if you are connecting your Ultra 2 Series system to a 10BASE-T
twisted-pair Ethernet (TPE) network. This chapter contains important information
for getting your system to communicate correctly over a TPE network. If you have
no experience with TPE networks, ask your system or network administrator to
perform the procedures in this chapter.

Note – This chapter does not apply to 100BASE-T networks. In such networks, the

link test function must be enabled at both the host and the hub. If your host is
connected to a 100BASE-T network, you must not disable the host link test function.

2.1 Overview

■ The twisted-pair Ethernet link integrity test is a function defined by the IEEE

802.3 10BASE-T specification.

■ For a networked workstation (host) to communicate with a network hub, the link

test state (enabled or disabled) must be the same on the host and hub.

■ If either the host or hub does not share the link test enabled/disabled state of the

other, then the host cannot communicate effectively with the hub, and the hub
cannot communicate effectively with the host.

The following figure gives an example of a star configuration local area network
(LAN), showing the relationship of hosts to a hub.

FIGURE 2-2 shows the importance of ensuring that the host and hub link test settings

match in a 10BASE-T network.

2-1

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Host

Host

Host

Ultra 2 Series (Host)

FIGURE 2-1 Hosts and Hub in a Local Area Network

Hub

Host

Host

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Link Test
Enabled
(Default)
1

Two-Way Communication

Link Test
Enabled
1

Ultra 2 Series

Link Test
Enabled
(Default)
1

Ultra 2 Series

Link Test
Disabled
(Reset)
0

Ultra 2 Series

Link Test
Disabled
(Reset)
0

Ultra 2 Series may boot
successfully, but with “lost
carrier” or “no carrier” error
messages.

Ultra 2 Series may boot
successfully, but other hosts
in the network cannot
communicate with the
Ultra 2 Series.

Two-Way Communication

Hub

Link Test
Disabled
0

Hub

Link Test
Enabled
1

Hub

Link Test
Disabled
0

Ultra 2 Series Hub

FIGURE 2-2 Ensuring Host-Hub Communication in a 10BASE-T Network

2.2 Technical Discussion

The twisted-pair Ethernet link integrity test determines the state of the twisted-pair
cable link between the host and the hub in a network. Both the host and hub
regularly transmit a link test pulse. When either the host or hub has not received a

Chapter 2 10BASE-T Twisted-Pair Ethernet Link Test 2-3

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link test pulse within a certain amount of time (50-150 ms), it makes the transition
from the link-pass state to the link-fail state and remains in the link-fail state until it
once again receives regular link test pulses.

The link integrity test is specific to twisted-pair Ethernet and is not applicable to the
other physical layer implementations of IEEE 802.3 such as 10BASE5 (”thicknet”) or
10BASE2 (“thinnet”).

The link test function at the host or hub is either enabled (link test enabled or 1) or
disabled (link test disabled or 0). The IEEE 802.3 10BASE-T specification requires
that the link test be enabled at both the host and the hub.

Although link test disabled does not conform to the specification, it is often
encountered in real-world 10BASE-T network installations. Some hubs from various
vendors can exhibit any of the following:

■ Link test is “hardwired” enabled—link test is always enabled.

■ Link test is “hardwired” disabled—link test is always disabled.

■ Link test is configurable—the network administrator may enable or disable link

test.

2.3 Troubleshooting

If you have connected an Ultra 2 Series host to a hub using twisted-pair Ethernet
cable and observe either “no carrier” messages or fail to communicate effectively
with another host in the same network, look first at the hub. If it supports
configurable link test, then make sure “link test enabled” is configured. This is
usually done by setting a hardware switch.

If the hub does not support configurable link test, then refer to the hub
manufacturer’s documentation. Check to see if your hub is hardwired for link test
disabled. If it is, you must follow the “Checking or Disabling the Link Test”
procedure elsewhere in this chapter to disable the link test at your Ultra 2 Series
host.

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2.4 Moves and Changes

If the Ultra 2 Series host is physically moved to another network location or if the
hub is reconfigured, remember to refer back to
relationship between the host and the hub is functional (that is, 1-1 link test enabled­link test enabled or 0-0 link test disabled-link test disabled), there will be no full,
regular two-way communication between the host and the hub.

FIGURE 2-2. Unless the new network

2.5 Checking or Disabling the Link Test

To check the link test state of an Ultra 2 Series host:

1. If you do not see the ok prompt, press the Stop (L1)-a keys.

2. At the ok prompt, type:

ok printenv tpe-link-test?
tpe-link-test? true true
ok

The above screen shows the current link test state (true, or enabled), followed by the
default state (true, or enabled).

To disable the host’s link test function:

1. Type the following commands:

ok setenv tpe-link-test? false
tpe-link-test? = false
ok reset-all

2. Boot the host and verify that the transceiver cable problem messages do not
appear. Type either boot net or boot disk and press Return.

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2.6 Enabling the Link Test

1. If you do not see the ok prompt, press the Stop (L1)-a keys.

2. At theokprompt, type:

ok printenv tpe-link-test?
tpe-link-test? false true
ok

The above screen shows the current link test state (false, or disabled), followed by
the default state (true, or enabled).

1. To enable the host’s link test function, type the following commands:

ok setenv tpe-link-test? true
tpe-link-test? = true
ok reset-all

2. Boot the host and verify that the transceiver cable problem messages do not
appear. Type either boot net or boot disk and press Return.

2-6 Sun Ultra 2 Series Reference Manual • May 1996

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CHAPTER

3

Modem Setup Specifications

3.1 Setting Up the Modem

Any modem compatible with U.S. Robotics‘ or CCITT V.24 can be connected to the
Ultra 2 Series serial ports. Modems can be set up to function in one of three ways:

■ Dial out only

■ Dial in only

■ Bidirectional Calls

To set up your modem:

1. Become superuser. Type admintool.

% su
Password:
# admintool

2. Highlight Browse.

3. Select Serial Port.

4. Select Port A or Port B for your modem connection.

5. Select Edit.

6. Select Expert.

7. Open the Use Template menu, and select one of the following:

Modem - Dial-Out Only
Modem - Dial-In Only
Modem - Bidirectional

3-1

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8. Select Apply.

9. Set your modem auto-answer switch to one of the following:

For Dial-Out Only, set the switch to Off.
For Dial-In Only, set the switch to On.
For Bidirectional, set the switch to On.

3.2 Serial Port Speed Change

You must edit the /etc/remote file to change the speed of a serial port.

1. Become rootsuperuser, and type cd /etc.

% su
Password:
# cd /etc

2. Type vi remote.

3. Type tip speed device-name.

Typical speeds are 9600, 19200 to 38400 bps.
The device name is the serial port name — for example,
/dev/tty[a,b] or /dev/term/[a,b].

4. Press Esc and type :wq to save your file change(s) and to exit from the vi text
editor.

3.3 Recommendations

3.3.1 Cable

For a modem-to-host (system) connection, use an RS-423/RS-232 straight-through
cable with DB-25 male connectors at both ends.

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3.3.2 Modem Switch Settings (AT Commands)

■ Enable transmit flow control (AT&H1) [suggested setting]

(Required for sending binary/8-bit data)

■ Set link rate to fixed

(Will not track modem data rate, AT&Bn; n = menu choice in modem manual.)

■ Set display result codes (ATQ0)

■ Set verbal result codes (ATV1)

■ Set result code subset (ATXn; n = option choice)

■ Save settings in NVRAM (AT&W)

Note – The above settings are guidelines to help you get started quickly. Changes to

these guidelines should be expected depending on your site requirements and the
modem you are using.

For additional information about modem switch settings, see the manual that came
with your modem.

Chapter 3 Modem Setup Specifications 3-3

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CHAPTER

4

Main Logic Board Jumpers

Jumper settings given in this chapter refer to etchings on the main logic board.
Jumpers are labeled with the letter “J” followed by a four-digit number.
See the following figure.

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4-1

Back panel

Audio ports

Side panel

Fan

Fan

K/B

J2101

J2203

J3001

J3002

J3101

SBus slot 0

SBus slot 1

J3102

Parallel port

J2503

J2204

SBus slot 2

SBus slot 3

CPU 0 J2801
CPU 1 J2901

DSIMM U slots:

0601,0701,0401,U0501
0602, 0702, 0402, 0502
0603, 0703, 0403, 0503
0604, 0704, 0404, 0504

TPE

RJ45

MII

J2501

NVRAM/TOD

UPA slot J2701

SCSI
J2502

J2104

Disk drive sd0

Disk drive sd1

Speaker

J2105

J3201

J3202

Fan

Power
supply

MIDDLE Diskette drive

UPPER CD-ROM drive

Fan

LOWER Disk drive 0 + 1

Front panel

FIGURE 4-1 Jumper Locations on the Main Logic Board

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4.1 Identifying Jumpers

Jumpers are marked on the main logic board with part numbers. For example, the
serial port jumpers are marked J2104 and J2105. Jumper pins are located
immediately adjacent to the part number. Pin 1 is marked with an asterisk in any of
the positions shown in the following figure.

J 2 X X X

*

*

*

FIGURE 4-2 Identifying Jumper Pins

Part number

Pins

*

*

*

4.2 Flash PROM Jumpers

The Ultra 2 Series system uses flash PROMs. Flash PROMs permit the following:

■ Reprogramming of specific code blocks

■ Remote reprogramming of the PROM chip by a system administrator over a local

area network

The default shunt setting of J2002 is on pins 1 and 2. This selects the flash PROM
chip as the controlling firmware device. See

The default shunt setting of J2003 is on pins 1 and 2. This disables the flash PROM
chip from being reprogrammed. Placing the shunt on pins 2 and 3 enables
reprogramming of the flash PROM chip.

FIGURE 4-1.

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Note – If you are reprogramming your system flash PROM, after successful

reprogramming be sure to return the flash PROM Write Protect/Enable jumper
(J2003) to the Write Protect position to increase system security.

TABLE4-1 Flash PROM Jumper Settings

Jumper Pins 1 + 2 Select Pins 2 + 3 Select

J2002 Flash PROM Not To Be Used 1 + 2 FLASH PROM

J2003 Write Protect Write Enable 1 + 2 FLASH PROM

J2204 High Half

Booting

Normal Booting 2 + 3 XOR LOGIC

For flash PROM reprogramming information and the function of J2204, see the
SMCC System Flash PROM Programming Guide .

4.3 Serial Port Jumpers

The serial port jumpers on the main logic board permit configuring the two DB-25
serial ports on the system unit back panel for either RS-423 or RS-232 signal levels.
RS-423 levels are the default standard for North American users. RS-232 levels are
required for digital telecommunication in nations of the European Community.

TABLE4-2 Serial Port Jumper Settings

Default Jumper
on Pins Signal Controlled

SEL

PROG ENABLE

SET

Jumper Pins 1 + 2 Select Pins 2 + 3 Select

J2104 RS-232 RS-423 2 + 3 RS232/RS423

J2105 RS-232 RS-423 2 + 3 RS232/RS423

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Default Jumper
on Pins Signal Controlled

SEL

SEL

CHAPTER

5

System Specifications

5.1 Power

The following table lists power specifications.

TABLE5-1 Power Specifications

Input/Output Specifications

AC Power Input 100-240 VAC nominal, 47-63 Hz.
DC Power Output 350 W maximum

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5-1

5.2 Environment

The following specifications comply with the International Electromechanical
Commission (IEC) Standards, 5th ed., 1990-1994.

TABLE5-2 Environmental Specifications (Operating)

Operating

Altitude without
removable tape
media

Altitude with
removable tape
media

Humidity 5% to 95% relative humidity (RH) regardless of temperature

Shock 2.0G, 11 milliseconds, half sine pulse

Vibration 0.1G, 5 to 500 Hz, swept sine — IEC 68-2-06
Temperature 5 degrees C to 40 degrees C

0 meters (0 feet) [sea level], 40 degrees C (104 degrees F) to 3000
meters (9840 feet), 34.6 degrees C (94.2 degrees F)
— IEC 68-2-40

0 meters (0 feet) [sea level], 35 degrees C (95 degrees F) to 3000
meters (9840 feet), 29.4 degrees C (84.9 degrees F)
— IEC 68-2-40

—IEC 68-2-02, 68-2-03

— IEC 68-2-27

(41 degrees F to 104 degrees F)
— IEC 68-2-01, 68-2-02

TABLE5-3 Environmental Specifications (Nonoperating)

Nonoperating

Altitude 0 to 12,000 meters (0 to 39,360 feet)

— IEC 68-2-40

Humidity 0% to 93% RH at 40 degrees C (104 degrees F)

— IEC 68-2-03

Shock 15 G peak, 11 milliseconds, half sine pulse

— IEC 68-2-27
Vibration 0.5 G, 5 to 500 Hz, swept sine — IEC 68-2-06
Temperature 20 degrees C to 55 degrees C

(-4 degrees F to 131 degres F)

— IEC 68-2-01, 68-2-0

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5.3 Physical Specifications

TABLE5-4 Dimensions and Weight

Height Width Depth Weight

13.0 cm (5.12 in.) 45.0 cm (17.72 in.) 45.2 cm (17.94 in.) 15.88 kg (35.0 lb)

TABLE5-5 Physical Clearances

Clearance Specification

Compact Disc/Diskette 16.51 cm (6.5 in.)
System Unit Parallel Placement 7.6 cm (3.0 in.)

1. Physical space between two system units side by side

5.4 Memory Mapping

Single in-line memory modules (SIMMs) are installed on the main logic board in
groups of four. Identical SIMMs are installed in each group.

1

TABLE5-6

Memory Group Slots

0 U0501, U0701, U0401, U0601
1 U0502, U0702, U0402, U0602
2 U0503, U0703, U0403, U0603
3 U0504, U0704, U0404, U0604

Main Logic Board Memory Mapping

Chapter 5 System Specifications 5-3

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