DEC 600s - Connecting the Modem Loopback Connector

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Reporting Problems to Digital Services

Modem

Loopback

Connector

If your Digital service representative requests that you

connect the modem loopback connector, connect it as shown

in Figure 14–9.

Figure 14–9 Connecting the Modem Loopback Connector

MLO-009412

ISDN

14–18 Running Diagnostic Tests

Main Page

Default Chapter3
- Table of Contents3
Preface15
- Parts Description15
  - Purpose of this Guide15
  - Structure of this Guide15
Part I Basic Operations19
1 Introduction to Your System21
- Chapter Overview21
- System Conﬁgurations22
- Overview of the System23
  - The DEC 3000 Model 600/700 AXP Workstation23
- Operating Systems25
- Software Product Descriptions (SPD)27
- Graphics Capabilities28
- Integrated Services Digital Network (ISDN)29
- Audio Capabilities30
- Available Options31
2 Preparing to Install Your System33
- Chapter Overview33
- Choosing a Location34
  - Dimensions of System34
- Requirements for System Location35
- Hazards to Avoid35
- Customizing Your Work Area36
  - Positioning Your System36
- Positioning Your System Components37
- Unpacking a Workstation System38
  - Workstation Components and Parts Used for Installation39
  - Components and Parts to Save40
- Unpacking a Server System41
  - Server Components and Parts Used for Installation41
  - Components and Parts to Save42
- A Closer Look at Your System43
  - Front of System Unit43
- Front of the System Unit43
  - Back of System Unit44
- Synchronous/Asynchronous Communications Port45
  - Back of the System Unit45
  - Where to Go Next47
3 Installing a Workstation System49
- Chapter Overview49
- Before You Begin50
- Task Overview51
  - Parts Used to Install Your Workstation51
- Steps to Install Your DEC 3000 Model 600/700 AXP Workstation52
- Connecting the Workstation53
- Making Monitor Connections54
- Connecting the Monitor Cables to the Monitor55
- Connecting a Printer to the System66
- Checking Your Installation67
- Alternate Console Switch: up67
- A Connected Workstation68
- Where to Go Next69
4 Installing a Server System71
- Chapter Overview71
- Before You Begin72
- Task Overview73
- Parts Used to Install Your Server73
- Steps to Install Your DEC 3000 Model 600S AXP Server74
- Connecting the Server75
- Connecting the Ethernet Loopback Connector75
- Connecting the SCSI Terminator76
- Connecting a Terminal to the System Unit77
- Checking the Alternate Console Switch78
- Factory-Installed Software Label79
- Connecting the Power Cord to the System Unit80
- Connecting a Printer to the System82
- Checking Your Installation83
- A Connected Server83
- Where to Go Next84
5 Connecting Your System to a Network85
- Chapter Overview85
- Before You Begin86
- Required Network Cables87
- Connecting to an AUI Ethernet Network88
- Steps for Connecting an AUI Ethernet Network88
- Connecting to a 10BASE-T Ethernet Network90
- Connecting a 10BASE-T Network Cable91
- Connecting to a 10BASE2 (Thinwire) Ethernet Network92
- Steps for Connecting a Thinwire Ethernet Network92
- Connecting the AUI Ethernet Cable to the DECXM Transceiver93
- Connecting the Thinwire Cables and T-Connector to the DECXM Transceiver94
- Terminating the Ethernet Connection95
- DECXM Documentation95
- Setting and Verifying the Network Connection96
- Completing the Network Connection98
6 Starting up Your System99
- Chapter Overview99
- Before You Begin100
- Turning on the System101
- Steps for Starting a Workstation102
- Steps for Starting a Server102
- Turning on the System103
- Reviewing the Startup Display104
- Startup Display104
- Startup Display Information105
- Starting a System with Factory-Installed Software106
- Factory-Installed Software Documentation106
- Openvms AXP Initial Startup Display107
- Openvms AXP Decwindows Motif Start Session Screen108
- DEC OSF/1 AXP Initial Startup Display109
- DEC OSF/1 AXP Decwindows Motif Start Session Screen110
- Loading Operating System Software111
- Start the Operating System111
- Where to Go Next112
7 Turning off Your System113
- Chapter Overview113
- Before You Begin114
- Current System Status114
- Shutting down the System115
- Steps to Shutting down Your System115
- Operating System Shutdown Procedure115
- Turning off the System Unit116
- Halting the System117
- Halting the Operating Systems117
- Pressing the Halt Button118
- System Halt Message119
8 Maintaining Your System121
- Chapter Overview121
- Before You Begin122
- Maintaining the System Unit and Keyboard122
- Cleaning the Monitor124
- Cleaning the Mouse124
- Removing/Replacing the Mouse Cover Plate125
- Steps for Cleaning the Mouse125
Part II Advanced Operations127
9 Using Console Commands129
- Chapter Overview129
- Before You Begin130
- Modes of System Operation131
- Console Mode User Interface132
- Supported Keys and Control Characters133
- Console Commands134
- Basic Console Commands134
- Advanced Console Commands134
- The Boot Command137
- Boot Command Parameters/Qualiﬁers137
- The Continue Command141
- The Halt Command141
- The Help Command142
- The Help Advanced Command143
- The Set or Setenv Command144
- The Show or Printenv Command145
- The Test Command146
10 Changing Environment Variables147
- Chapter Overview147
- Before You Begin148
- Available Environment Variables148
- Displaying Current Environment Variables150
- Changing the Default Startup Action (Auto_Action)151
- Parameters for Setting Startup Action151
- Changing the Default Startup Action (Auto_Action)152
- Changing the Default Boot Device (Bootdef_Dev)153
- The Show Device Display154
- Changing the Default Diagnostic Startup Mode (Diag_Quick)155
- Changing the Default Keyboard Language (Language)156
- Changing the Default Fast SCSI (Fast_Scsi_A)(Fast_Scsi_B)157
- Environment Variables158
11 Using the Password Security Feature159
- Chapter Overview159
- Entering a Password159
- Before You Begin160
- Console Command Access161
- Task Overview162
- Steps to Making the System Secure162
- Moving the Secure System Jumper163
- Steps to Moving Secure System Jumper163
- Removing the System Unit Cover164
- Releasing the Driveplate165
- Moving the Driveplate166
- Moving the Secure System Jumper167
- Replacing the Driveplate168
- Replacing the Drive Cable and Driveplate Thumbscrews169
- Replacing the Cover170
12 Using an Alternate Console177
- Chapter Overview177
- Using the Alternate Console177
- Before You Begin178
- Using the Alternate Console Feature179
- Attaching a Device to the Alternate Console180
- Printer Port180
- Changing the Alternate Console Switch181
Part III Handling Problems183
13 Identifying a Problem185
- Chapter Overview185
- Before You Begin186
- How to Identify a Problem186
- Task Overview187
- Steps to Resolving Problems187
- Determining Type of Problem188
- Type of Problem189
- Startup Problems190
- Power Indicator Light Failure190
- Position of Diagnostic Display Lights191
  - Diagnostic Lights Display Error191
  - Missing Startup Display192
- Startup Display with Error193
  - Startup Error Codes194
  - Startup Without Booting195
  - Interpreting the Show Command Displays196
  - Information Provided by the Show Console Commands196
- Conﬁguration Display with Error197
- The Show Conﬁg Display Described197
- The Show Device Display198
- The Show Device Display Described199
- The Show Error Display201
- System Device Errors201
- Error Message Elements202
- The Show Memory Display203
  - Display Problems204
- Monitor Display Problems205
- Monitor Display Problems206
  - Mouse and Keyboard Problems207
  - SCSI Device Problems208
- Installed Disk Drive Problems208
- Installed Software Problems209
  - Network Problems210
- Resolving ni Network Errors210
  - Where to Go Next211
- Problems When Booting from the Network211
14 Running Diagnostic Tests213
- Chapter Overview213
- Before You Begin214
- Task Overview215
- Steps to Diagnostic Tests215
- Running Diagnostic Tests216
- SCC Diagnostic Test Display218
- SCC Test Display with Error219
  - Turbochannel Tests220
- Initializing Your System221
- Initializing the System with the SCC Test222
  - Recording the Diagnostic Display Light Pattern223
- Position of Diagnostic Display Lights223
  - Diagnostic Display Lights224
  - Reporting Problems to Digital Services225
- Serial and Model Numbers226
  - Telephone Numbers of Digital Support Centers227
- Connecting the 10BASE-T Loopback Connector228
- Connecting the Alternate Console/Printer Loopback Connector229
- Connecting the Modem Loopback Connector230
  - Handling Problems Worksheet231
Part IV233
A Hardware Speciﬁcations233
- Hardware Specifications235
- Appendix Overview235
- Appendix Overview241
C Associated Documents253
- Appendix Overview253
- Associated Printed Documents253
- Associated Printed Documents254
- Openvms AXP Documentation255
- Openvms AXP Operating System Documents255
- DEC OSF/1 AXP Documentation256
- User Documentation, QA-MT4AB-GZ256
- Server Documentation Kit, QA-MT4AL-GZ257
D Special Information for PTT Network Users259
- Appendix Overview259
- Service Categories259
- Host Power Rating259
- BABT-Approved Service Speciﬁcations for the 54-21813 Module for UK Compliance260
- Host Power Rating261
- Module Power261
- Module Isolation262
- Clearance and Creepage Distances262
- Safety Status263
- Cable Approval263
- Connector Pin Layout264
Glossary267
- Cable270

DEC 600s - Connecting the Modem Loopback Connector

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