Digital Equipment DECpc AXP 150 Bedienungsanleitung

DECpcAXP150and

DEC2000Model300AXP

AdaptecAHA-1742ASCSIAdapter

UserInformation

Order Number: EK-A0652-UG.001

July 1993

This manual describes how to install, conﬁgure, and use the Adaptec

AHA-1742A SCSI adapter for the DEC 2000 Model 300 AXP and DECpc

AXP 150 systems.

Revision Information: This is a new manual.

Digital Equipment Corporation

Maynard, Massachusetts

First Printing, July 1993

Possession, use, or copying of the software described in this documentation is

authorized only pursuant to a valid written license from Digital, an authorized,

sublicensor, or the identiﬁed licensor.

While Digital believes the information included in this publication is correct as

of the date of publication, it is subject to change without notice.

Digital Equipment Corporation makes no representations that the

interconnection of its products in the manner described in this document

will not infringe existing or future patent rights, nor do the descriptions

contained in this document imply the granting of licenses to make, use, or sell

equipment or software in accordance with the description.

The postpaid Reader’s Comments form at the end of this document requests

your critical evaluation to assist in preparing future documentation.

The following are trademarks of Digital Equipment Corporation: AXP,

DEC, DECpc, Digital, OpenVMS, VAX DOCUMENT, the AXP logo, and

the DIGITAL logo.

OSF/1 is a registered trademark of the Open Software Foundation, Inc.

All other trademarks and registered trademarks are the property of their

respective holders.

This document was prepared using VAX DOCUMENT, Version 2.1.

Contents

Preface ..................................................... v

1 Installing the SCSI Adapter

Introduction . . . ................................... 1–1

About the AHA-1742A SCSI Adapter ................... 1–1

In This Chapter ................................... 1–1

Preparing to Install the SCSI Adapter . . ................... 1–2

Before You Begin .................................. 1–2

Disabling the Floppy Controller .......................... 1–3

Disabling the Floppy Controller ....................... 1–3

Removing the Onboard SCSI Terminators .................. 1–4

Removing the Onboard SCSI Terminators ............... 1–4

Installing the SCSI Adapter. . ........................... 1–5

Installation Procedure . . . ........................... 1–5

Connecting External SCSI Devices ....................... 1–6

Connection Procedure . . . ........................... 1–6

Connection Illustration . . ........................... 1–7

Testing the SCSI Connection ......................... 1–8

Updated SHOW DEVICE Display . . ................... 1–8

2 Conﬁguring the SCSI Adapter

Introduction . . . ................................... 2–1

In This Chapter ................................... 2–1

EISA Conﬁguration Utility (ECU) ........................ 2–2

Running the ECU ................................. 2–2

Changing the Conﬁguration .......................... 2–2

Default Conﬁguration . . . ........................... 2–3

iii

3 Troubleshooting

Summary ........................................ 3–1

Identifying and Solving Problems ..................... 3–1

A Speciﬁcations

Introduction ...................................... A–1

In This Appendix . . ................................ A–1

SCSI Adapter Speciﬁcation ............................. A–2

SCSI Adapter Speciﬁcation Summary . . ................ A–2

SCSI Port Pin Speciﬁcation ............................. A–3

Summary ........................................ A–3

SCSI Port Illustration .............................. A–3

SCSI Port Pin Speciﬁcation . . ........................ A–3

Index

Examples

1–1 Updated SHOW DEVICE Display ..................... 1–8

Figures

1–1 Disabling the Floppy Controller ....................... 1–3

1–2 Removing the SCSI Terminators ...................... 1–4

1–3 Connecting an External SCSI Device . . . ................ 1–7

A–1 SCSI Port ........................................ A–3

Tables

1–1 Preinstallation Procedure............................ 1–2

1–2 Connecting External Devices . ........................ 1–6

1–3 Testing the SCSI Connection Using the SHOW DEVICE

Display . . ........................................ 1–8

2–1 Conﬁguration Settings .............................. 2–2

2–2 Default Conﬁguration .............................. 2–3

3–1 Troubleshooting Table .............................. 3–1

A–1 Speciﬁcation Table . ................................ A–2

A–2 SCSI Port Pin Speciﬁcation . . ........................ A–3

Preface

Purpose of This

Manual This manual describes how to install, conﬁgure, and use the

Adaptec AHA-1742A SCSI adapter in the DEC™ 2000 Model 300

AXP™ or DECpc™ AXP 150 systems.

Audience This manual is intended for anyone installing, conﬁguring, or

using the Adaptec AHA-1742A SCSI adapter in the DEC 2000

Model 300 AXP or DECpc AXP 150 systems. It is written for

both experienced and inexperienced users.

Structure of

This Manual This manual contains three chapters, an appendix, and an index

as follows:

• Chapter 1 describes how to install and use the SCSI adapter.

• Chapter 2 describes how to conﬁgure the SCSI adapter.

• Chapter 3 contains troubleshooting information.

• Appendix A lists the speciﬁcations for the SCSI adapter.

• The index is a reference to the main topics in the manual.

Associated

Information See the DECpc AXP 150 and DEC 2000 Model 300 AXP

Customer Technical Information manual for associated

information.

Conventions The following conventions are used in this manual:

Convention Description

monospace

Text displayed on the screen is shown in

monospace type.

italic type Italic type emphasizes important information,

indicates variables, and indicates complete

titles of manuals.

n.nn

A period in numerals signals the decimal point

indicator. For example, 1.75 equals one and

three-fourths.

UPPERCASE Words in uppercase indicate a command.

nA lowercase italic nindicates the generic use

of a number. For example, 19nn indicates a

4-digit number in which the last 2 digits are

unknown.

Note A note contains information of special

importance to the reader.

Caution A caution contains information to prevent

damage to the equipment.

Installing the SCSI Adapter

Introduction This chapter describes how to install and connect the

AHA-1742A SCSI adapter.

About the

AHA-1742A

SCSI Adapter

The AHA-1742A SCSI adapter provides a diskette drive

controller and it allows you to connect up to seven SCSI devices,

either internal or external, to the system.

In This Chapter This chapter contains the following sections:

• Preparing to Install the SCSI Adapter

• Disabling the Floppy Controller

• Removing the Onboard SCSI Terminators

• Installing the SCSI Adapter

• Connecting External SCSI Devices

Installing the SCSI Adapter 1–1

Preparing to Install the SCSI Adapter

Before You

Begin Before you install the AHA-1742A SCSI adapter, you must

determine if it is the ﬁrst or the second SCSI adapter in the

system. If it is the second SCSI adapter in the system, you must

disable the ﬂoppy disk controller. You must also decide whether

you are using the SCSI adapter to connect internal or external

SCSI devices to the system. Table 1–1 describes the actions you

should take.

Table 1–1 Preinstallation Procedure

Adapter Internal Devices External Devices

First No action required. If you are ready to connect the external SCSI

devices immediately after installing the SCSI

adapter, remove the terminators from the SCSI

adapter. See the section entitled Removing the

Onboard SCSI Terminators for information on

removing the terminators.

Second No internal device

connections permitted. If you are connecting external devices, do the

following:

1. Disable the ﬂoppy controller on the SCSI

adapter. See the section entitled Disabling

the Floppy Controller for information on

disabling the ﬂoppy controller.

2. If you are ready to connect the external SCSI

devices immediately after installing the

SCSI adapter, remove the terminators from

the SCSI adapter. See the section entitled

Removing the Onboard SCSI Terminators for

information on removing the terminators.

1–2 Installing the SCSI Adapter

Disabling the Floppy Controller

Disabling

the Floppy

Controller

If you are installing a second SCSI adapter in the system, you

must disable the ﬂoppy disk controller on the second SCSI

adapter. To disable the ﬂoppy controller, remove the jumper from

pin number 1 of J6 on the SCSI adapter. Figure 1–1 shows the

default position of the jumper.

Figure 1–1 Disabling the Floppy Controller

GA_EN00500A_93A

123456

Installing the SCSI Adapter 1–3

Removing the Onboard SCSI Terminators

Removing the

Onboard SCSI

Terminators

If you want to connect external SCSI devices to the system unit,

you must remove the three onboard SCSI terminators from

the SCSI adapter. Figure 1–2 shows how to remove the SCSI

terminators (

) from the SCSI adapter.

Figure 1–2 Removing the SCSI Terminators

GA_EN00501A_93A

1–4 Installing the SCSI Adapter

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