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Digital Equipment InfoServer 150 Installation And Owner's Manual

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InfoServer 150
Installation and Owner's Guide
Order Number: EK–INFSV–OM–001
This manual describes how to install, test, operate, and maintain the
InfoServer 150 system.
Digital Equipment Corporation
Maynard, Massachussets

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Summary of Contents for Digital Equipment InfoServer 150

  • Page 1 InfoServer 150 Installation and Owner’s Guide Order Number: EK–INFSV–OM–001 This manual describes how to install, test, operate, and maintain the InfoServer 150 system. Digital Equipment Corporation Maynard, Massachussets...
  • Page 2 October 1991 The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document.

  • Page 3: Table Of Contents

    ........... . . 1 InfoServer 150 System Overview System Highlights .
  • Page 4 3 Expanding Your System Guidelines for Connecting Expansion Boxes ....3–1 Preparing Your System for an Expansion Box ....3–2 Unpacking an Expansion Box .
  • Page 5 Figures 1–1 InfoServer 150 System Enclosure ..... . 1–1 Front Panel of Embedded RRD42 Drive ....
  • Page 6 SHOW Command Summary ......5–15 SCSI ID numbers for InfoServer 150 System ... . . A–1...

  • Page 7: Preface

    Document Purpose This document describes how to install, test, operate, and maintain the InfoServer 150 system. This system is a general-purpose disk storage server that quickly and efficiently transfers data between disks connected to the server and remote network client systems.

  • Page 8: Related Documents

    Related Documents Consult your Digital sales representative for information on obtaining the documents listed in Table 1. Table 1 Related Documents Titles Order Number InfoServer Documentation InfoServer System Operations Guide AA–PJXJA–TE InfoServer 100 Installation and Owner’s Guide EK–DIS1K–IN Client Documentation VMS LAD Control Program Manual AA–PD1LB–TE SCSI Device Documentation...
  • Page 9 Conventions The following conventions are used in this document: A key name is shown enclosed to indicate that you press a Return key on the keyboard. The on/off power switch on equipment. You press | to turn power on, or O to turn power off. red ink Red ink indicates information that you must enter from the keyboard or a screen object that you must choose or click on.

  • Page 11: Infoserver 150 System Overview

    InfoServer 150 System Overview The InfoServer 150 system is a general-purpose disk storage server that quickly and efficiently transfers data between disks connected to the server and remote network client systems. It provides users with a low-cost data sharing capability that is flexible and easy to manage. Figure 1–1 shows the InfoServer 150 system enclosure.

  • Page 12: System Highlights

    SHR−XR0062−90 • Internal hard disk drive The InfoServer 150 system includes one internal disk drive. This drive stores server configuration information. The drive can also be served to client nodes as writable storage. The InfoServer 150 system configuration comes with an RZ23L drive; the InfoServer 150VXT system configuration comes with an RZ24 drive.

  • Page 13: Storage Devices

    1.2.2 RRD42 Compact Disc Drive A compact disc is an optical, read-only storage media. The InfoServer 150 system comes with one RRD42 compact disc drive. The system can bootstrap from compact disc, although the internal RZ hard disk drive is the primary bootstrap device.

  • Page 14: Console Terminal

    1.3 Console Terminal The InfoServer 150 system is designed to require a minimum amount of system management. You normally issue server commands by using a LAT terminal session created to the InfoServer 150 system from a terminal server. In the...

  • Page 15: Installing Your System

    Installing Your System Setting up your InfoServer 150 system is easy. This chapter provides step-by-step instructions on how to perform the following operations: • Choose the right location for the system • Unpack and inspect system components • Connect system components •...

  • Page 16: Unpacking And Inspecting System Components

    2.2 Unpacking and Inspecting System Components The InfoServer 150 system is shipped in two boxes, one for hardware and one for software. The larger box contains the InfoServer 150 hardware with accessories and documentation. The smaller box, packed inside the larger box, contains the software compact discs with licenses and instructions.

  • Page 17: Infoserver 150 System Components

    Installing Your System 2.2 Unpacking and Inspecting System Components Figure 2–1 InfoServer 150 System Components Server System Unit Documentation Power Cord ACCESSORIES: Two Terminators and One T-Connector (ThinWire Ethernet) Connector Covers SCSI Terminator Loopback Connector (Standard Ethernet) M K V - X 3 1 2 6 - 9 1...

  • Page 18: Connecting System Components

    Installing Your System 2.3 Connecting System Components 2.3 Connecting System Components After unpacking, follow the instructions in Sections 2.3.1 through 2.3.7 to connect system components. 2.3.1 Identify the System Unit Ports and Connectors Figure 2–2 shows all the ports and connectors on the rear of an InfoServer 150 system.

  • Page 19: Install The Scsi Terminators

    Installing Your System 2.3 Connecting System Components 2.3.2 Install the SCSI Terminators If you do not intend to connect additional drives to your system, be sure that the SCSI terminators are installed on the SCSI ports at the rear of the system unit, as shown in Figure 2–3.

  • Page 20: Attach The Ethernet Terminators

    Installing Your System 2.3 Connecting System Components Figure 2–4 Connector Covers M K V - X 3 1 0 9 - 9 1 2.3.4 Attach the Ethernet Terminators You must connect the T-connector, two Ethernet terminators, and the loopback connector (Figure 2–1) to the system unit, so that you can run diagnostic tests to verify the Ethernet circuits.

  • Page 21: Attaching T-Connectors

    Installing Your System 2.3 Connecting System Components For diagnostic purposes, note the following: • The T-connector and two terminators complete the ThinWire Ethernet circuit. Later, when you decide to connect to a network, you exchange ThinWire cable sections for one or both terminators, depending on your network setup.
  • Page 22 Installing Your System 2.3 Connecting System Components T-Connector M K V - X 3 1 1 1 - 9 1 4. Connect the loopback connector to the standard Ethernet port on the back of the system unit. If needed, rotate the T-connector slightly to make room for the loopback connector.

  • Page 23: Connect The System Unit Power Cord

    Installing Your System 2.3 Connecting System Components 2.3.5 Connect the System Unit Power Cord Note Make sure the power switch on the rear panel of the system unit is off (O). The system accepts power inputs in the ranges of 100 Vac to 120 Vac and 200 Vac to 240 Vac, at 50 or 60 Hertz.

  • Page 24: Connect A Console Terminal

    Installing Your System 2.3 Connecting System Components 2.3.6 Connect a Console Terminal You do not need a locally connected terminal for normal InfoServer operation. However, Digital advises that you connect a local terminal as part of this installation procedure, to ensure that the InfoServer system is operating properly.

  • Page 25: Connect External Expansion Boxes

    Installing Your System 2.3 Connecting System Components During normal operation, you can control the server through a LAT terminal server session, if terminal servers are available on your network. If terminal server access is not available, or if client systems have trouble accessing server services, then a locally connected terminal is needed to manage the server or diagnose server problems.

  • Page 26: Loading A Compact Disc

    (Section 2.3.1). It should be in the down position. 2.5 Loading a Compact Disc The InfoServer 150 system (Figure 1–1) has one RRD42 compact disc drive on the front of the system unit. When you load a disc into the compact disc drive, insert the entire disc caddy into the disc door on the drive.

  • Page 27: Opening The Caddy

    Installing Your System 2.5 Loading a Compact Disc Figure 2–8 Opening the Caddy SHR−XR0070−90 4. To load an empty caddy with a disc, hold the disc by the edges and place the disc (with disc label up) into the caddy (Figure 2–9). Do not touch the surface of the disc.

  • Page 28: Loading The Disc

    Installing Your System 2.5 Loading a Compact Disc Figure 2–9 Loading the Disc SHR−XR0073−90 Note The loading procedure for the RRD42 tabletop and embedded drives is the same with one exception: the tabletop drive requires setting the POWER switch to on. Figure 2–10 shows the tabletop drive. 2–14...

  • Page 29: Loading The Caddy In The Drive

    Installing Your System 2.5 Loading a Compact Disc 6. Insert the caddy into the drive (Figure 2–10). Figure 2–10 Loading the Caddy in the Drive SHR−XR0074−90A SHR−XR0074−90 2–15...

  • Page 30: Unoading A Compact Disc

    Installing Your System 2.5 Loading a Compact Disc The green activity light should turn on within 5 seconds. If the drive accepts the disc and caddy but the light does not come on, the disc might be sitting incorrectly in the caddy. Remove the disc and check that the label is facing up when you insert the disc into the drive again.

  • Page 31: Connecting The System To A Network

    Installing Your System 2.6 Unoading a Compact Disc 1. Turn off the power to the drive. 2. Insert a steel rod, about 1.2 millimeters in diameter and 35 millimeters or 1.37 inches long, and push into the emergency eject hole at the lower right of the front panel (Figure 2–12).

  • Page 32: Turning Off The System

    Installing Your System 2.8 Turning Off the System 2.8 Turning Off the System Turn off your equipment in the following order, by setting the switches to O (off): 1. Console terminal 2. Expansion boxes 3. System unit 2.9 Bootstrapping the System Once the server is booted and running, the diagnostic LEDs on the back of the box light up, rotating from right to left.

  • Page 33: Recovering From Bootstrap Failures

    The system now boots the internal RZ disc drive. If the boot is successful, the console screen displays a message like the following: DEC InfoServer 150 Copyright (c) 1991 Digital Equipment Corporation %ESS-I-INITDisc, Disc Intialization complete, 14 devices found Enter Password: 2.9.3 Recovering from Bootstrap Failures...
  • Page 34 Installing Your System 2.9 Bootstrapping the System 7. At the prompt, enter the default password (ESS) or the last saved password. If you have forgotten the current password, see the troubleshooting chapter in the InfoServer System Operations Guide. 8. The prompt appears.

  • Page 35: Expanding Your System

    Expanding Your System This chapter provides information on installing and using external add-on disk storage devices. An InfoServer 150 system can support 5 external SCSI devices on SCSI bus A and 7 external SCSI devices on SCSI bus B. Digital qualifies the external expansion boxes recommended for use with the InfoServer 150 system, to ensure that they meet system requirements.

  • Page 36: Preparing Your System For An Expansion Box

    Expanding Your System 3.1 Guidelines for Connecting Expansion Boxes is self-sensing, so the system unit does not need a voltage selection switch. • Turn on all expansion boxes before you turn on your system unit. This step ensures that the device in each expansion box is ready for use, and that the system firmware includes the device in its configuration.

  • Page 37: Unpacking An Expansion Box

    Expanding Your System 3.3 Unpacking an Expansion Box 3.3 Unpacking an Expansion Box SCSI peripherals in external, standalone enclosures usually come with the following accessories: • One 50-pin to 50-pin cable (part number BC19J-1E). Use this cable to connect the expansion box to other expansion boxes. •...

  • Page 38: Connecting One Rrd42 Expansion Box

    Expanding Your System 3.4 Connecting One Expansion Box 6. Connect the power cord to the power receptacle on the expansion box, then plug the other end into a grounded power outlet. Figure 3–2 shows how to connect one RRD42 expansion box to the system. Figure 3–2 Connecting One RRD42 Expansion Box SCSI CABLE...

  • Page 39: Connecting Two Expansion Boxes

    Expanding Your System 3.5 Connecting Two Expansion Boxes 3.5 Connecting Two Expansion Boxes You can add a second expansion box at a later time and link the two expansion boxes together in series. You can stack expansion boxes or place them side by side.

  • Page 40: Rrd42 Compact Disc Expansion Box

    Expanding Your System 3.5 Connecting Two Expansion Boxes Figure 3–3 Connecting Two RRD42 Expansion Boxes SCSI CABLE SCSI SCSI SCSI CABLE TO HOST SYSTEM SCSI CABLE SCSI SCSI SCSI TERMINATOR TERMINATOR TERMINATOR SHR−XR0066−90 3.6 RRD42 Compact Disc Expansion Box The RRD42 is a read-only storage device that reads data from removable compact discs.

  • Page 41: Verifying The Scsi Id Number On The Rrd42 Expansion Box

    To reset the number, follow instructions in step 3 of Section 3.4. In the following example, ID 0 is an open ID. To determine available ID numbers on the SCSI-A or SCSI-B bus on your InfoServer 150 system, enter TEST 50 at the console prompt , then press (>>>) Return.

  • Page 42: Preventive Maintenance

    Expanding Your System 3.6 RRD42 Compact Disc Expansion Box SCSI ID 4 — open SCSI ID 5 — open SCSI ID 6 — SCSI-A controller SCSI ID 7 — open SCSI-B 1C1C.0001 V1.3 FFFFFF05 05000001 05000001 05000001 05000001 05000001 FFFFFF03 FFFFFF05 SCSI ID 0 —...
  • Page 43 The caddy’s shutter automatically opens when it is inserted into the drive. Do not open the shutter manually and touch the disc. • When transporting the the InfoServer 150 system or the RRD42 tabletop drive, remove the caddy from the drive. •...

  • Page 45: Connecting To A Network

    ThinWire Ethernet network. 4.1.1 Check the Network Select Button The InfoServer 150 system has a network select button on the rear of the system unit. When you first receive the system, the button is usually set to the In position. The button can be positioned as follows: •...

  • Page 46: Verify Your Thinwire Ethernet Network Installation

    Connecting to a Network 4.1 Connecting to a ThinWire Ethernet Network Figure 4–1 Position of Network Select Button and Ethernet Lights S t a n d a r d E t h e r n e t L i g h t N e t w o r k S e l e c t B u t t o n T h i n W i r e L i g h t M K V - X 3 1 1 9 - 9 1...

  • Page 47: Connect Your System To Thinwire Ethernet Cable

    Connecting to a Network 4.1 Connecting to a ThinWire Ethernet Network Figure 4–2 Position of Halt Button Halt Button M K V - X 3 1 2 0 - 9 1 3. Enter the following command: >>> TEST 50 Return The system responds with another display.

  • Page 48: Creating A Thinwire Ethernet Work Group

    Connecting to a Network 4.1 Connecting to a ThinWire Ethernet Network 4. If your system is not the first or last system and you want to connect another system to the ThinWire cable, add another section of cable to the T-connector.

  • Page 49: Connecting Your System To A Decconnect Faceplate

    The faceplate has one of the following connectors: • A ThinWire BNC connector that allows several systems, including InfoServer 150 systems, to be serially connected to one another on the office side of the faceplate. •...

  • Page 50: Troubleshooting The Thinwire Segment

    Connecting to a Network 4.2 Creating a ThinWire Ethernet Work Group Figure 4–4 Connecting to DECconnect Faceplate T-Connector M K V - X 3 1 2 2 - 9 1 4.2.2 Troubleshooting the ThinWire Segment If you find problems during the ThinWire Ethernet installation, use the following checklist to make sure all connections are correct: 1.
  • Page 51 Connecting to a Network 4.2 Creating a ThinWire Ethernet Work Group 4. Check that there are no branches off a ThinWire segment except through a DEMPR multiport repeater. A DEMPR provides eight ThinWire Ethernet connections from a single standard Ethernet connection. 5.

  • Page 52: Disconnecting T-Connector

    Connecting to a Network 4.2 Creating a ThinWire Ethernet Work Group Figure 4–5 Disconnecting T-connector T-Connector M K V - X 3 1 2 3 - 9 1 7. Check that you have not disconnected a terminator from an active ThinWire segment.

  • Page 53: Connecting To A Standard Ethernet Network

    4.3 Connecting to a Standard Ethernet Network 4.3 Connecting to a Standard Ethernet Network This section describes how to connect the InfoServer 150 system to a standard Ethernet system. First, you must check the position of the network select button.

  • Page 54: Connect A Transceiver Cable To Your System

    4.3.3 Connect a Transceiver Cable to Your System A transceiver cable is the physical connection between a standard Ethernet network interface and an InfoServer 150 system. You use a transceiver cable to connect your system to an H4000 transceiver or DELNI unit, which is attached to the standard Ethernet cable.
  • Page 55 Connecting to a Network 4.3 Connecting to a Standard Ethernet Network 2. Turn your system off, then turn it on again. The system verifies the Ethernet connection during the power-up sequence. 3. After you check all Ethernet connections, retest the Ethernet subsystem. Enter the following command at the console prompt: >>>...

  • Page 57: Solving Problems

    Solving Problems This chapter provides information on troubleshooting problems with the InfoServer 150 system. Topics include • Checking cable connections • Using the troubleshooting table • Interpreting power-up error messages • Running self-tests • Displaying system configuration information • Displaying device information •...

  • Page 58: Using The Troubleshooting Table

    Solving Problems 5.1 Checking Cable Connections • Console cable (linking the console terminal to the system unit) • Terminal power cord • System unit power cord • Expansion box connector cable to system unit • Expansion box power cord Now, set the power switches on your equipment to the on ( | ) position, in the following order: 1.

  • Page 59: Troubleshooting Basic System Problems

    Solving Problems 5.2 Using the Troubleshooting Table Table 5–1 Troubleshooting Basic System Problems Symptom Possible Cause Suggested Solution System Unit Problems The system unit power light The power cord is not Check the power cord is off. connected. The power connections at both ends.
  • Page 60 Section 5.4 and Section 5.7 for further test instructions. The server system’s InfoServer 150 system See Section 2.9.3. software Password: software is not installed. prompt does not appear on the screen.

  • Page 61: Interpreting Power-Up Error Messages

    Solving Problems 5.3 Interpreting Power-Up Error Messages 5.3 Interpreting Power-Up Error Messages The InfoServer 150 system displays important information during its power-up test sequence. A single question mark indicates status information. A double question mark or asterisk indicates possible failures.

  • Page 62: Power-Up And Self-Test Display Identifiers

    Solving Problems 5.3 Interpreting Power-Up Error Messages A double question mark indicates a hard error that can affect normal operation and use of some system component. For example: • ?? 1 00C0 0000.7004 This message indicates that the Ethernet subsystem is present in the system but that one or more of the following problems exist: –...

  • Page 63: Running Self-Tests

    Solving Problems 5.4 Running Self-Tests 5.4 Running Self-Tests Self-test diagnostic programs reside permanently in your system’s read-only memory (ROM). You can run self-tests from the console terminal. After running each self-test, enter the command TEST 50 or T 50 and press Return to display the status of the device tested.

  • Page 64: Displaying System Configuration Information

    If a self-test results in a failure, run the configuration display to show any error codes. 5.5 Displaying System Configuration Information The InfoServer 150 system can display configuration, Ethernet ID, ROM revision levels, and status information. Error information displayed is valuable to your service representative. Have this information ready if you must call for service.

  • Page 65: Displaying Device Information

    Solving Problems 5.5 Displaying System Configuration Information SCSI-B 1C1C.0001 V1.3 FFFFFF05 05000001 05000001 05000001 05000001 05000001 FFFFFF03 FFFFFF05 Table 5–3 Definition of Mnemonics Mnemonic Device System clock Serial line controller Floating point unit SCSI-A SCSI-A controller SCSI-B SCSI-B controller Interval timer Memory Memory management unit Network interconnect...

  • Page 66: Using The System Exerciser

    Solving Problems 5.6 Displaying Device Information Device type Number of megabytes Removable or fixed disc Write-protected Device name 5.7 Using the System Exerciser The system exerciser emulates an operating system by interacting with system devices and tests all internal and external devices. Use the system exerciser if your system has intermittent problems.
  • Page 67 Solving Problems 5.7 Using the System Exerciser >>> TEST 0 Return KA41-2 V1.0 F 00B0 MONO 0000.0001 11 1005 0 00:00:35 C 0080 0000.0001 14 0 00:01:12 B 0010 0137.0001 5 00A7 0 00:02:02 7 0090 SCSI-A 6000.0001 22 0002 0 00:02:23 3200.0001 6 00A0...

  • Page 68: Running Test Utilities For Expansion Boxes

    Solving Problems 5.8 Running Test Utilities for Expansion Boxes 5.8 Running Test Utilities for Expansion Boxes If an expansion box fails check that all cable connections are in place. To test an RRD42 expansion box, follow these steps: 1. Press the halt button on the rear of your system unit. The console prompt appears on your screen.

  • Page 69: Service Information

    1. Write down the serial and model numbers of your system. Your system is identified by a label on the rear of the system unit. For example: Model: SEACx-Ax, InfoServer 150 system. Your service representative might need this number when you call.

  • Page 70: Test Command Summary

    Solving Problems 5.12 Command Summary Table 5–5 TEST Command Summary Command Test or Utility Program TEST F Reserved. TEST E System clock. TEST D Nonvolatile RAM. TEST C Serial line controller. TEST B System Memory. TEST A Memory management unit. TEST 9 Floating point unit.

  • Page 71: Show Command Summary

    Solving Problems 5.12 Command Summary Table 5–6 SHOW Command Summary Command Information Displayed SHOW DEVICE Devices available and SCSI ID SHOW ESTAT Results of last system exerciser test SHOW ETHER Hardware Ethernet address SHOW HALT Default action after your system halts SHOW MEMORY Memory for your system unit SHOW SCSIA...

  • Page 73: A Scsi Id Numbers

    The remaining six ID numbers (0 through 5) are available for custom configuration. Table A–1 lists the default SCSI settings for the InfoServer 150 system. The ID numbers listed give optimal performance on most systems. However, if you have special performance needs, you can set the ID number on each SCSI device manually.

  • Page 74: Determining Scsi Id Numbers

    SCSI ID Numbers A.1 SCSI ID Default Settings Table A–1 SCSI ID numbers for InfoServer 150 System SCSI-A Bus SCSI-B Bus Available for expansion Available for expansion SCSI-A adapter SCSI-B adapter Available for expansion Available for expansion Available for expansion...

  • Page 75: Setting Rrd42 Id Numbers

    SCSI ID Numbers A.2 Determining SCSI ID Numbers SCSI ID 6 — SCSI-A controller SCSI ID 7 — Open Rules for Setting SCSI ID Numbers • You can have up to seven devices on one bus. • Each device must have its own unique identifier. •...
  • Page 77 System Specifications This appendix lists InfoServer 150 system specifications, including operating and storage conditions. System Components and Power Requirements Processor VAX KA41-FA CPU with 1 KB of first-level cache DRAM memory 4 MB ROM memory 256 KB Hard disk RZ23L (121 MB), RZ24 (204 MB) (depends on configuration)
  • Page 78 System Specifications Weight and Dimensions Weight† Height Width Depth 11.4 kg 10.03 cm 46.38 cm 39.42 cm 25 lb 4.07 in 18.26 in 15.52 in †Depends on configuration System Operating Conditions Temperature range 10° to 40° C (50° to 104° F) Temperature change rate 11°...

  • Page 79: Glossary

    Glossary 32-bit The length of the internal data path of the CPU. 802.3 An Institute of Electrical and Electronics Engineers (IEEE) standard describing the physical and data link layers of a local area network based on bus topology and carrier sense multiple access/collision detect (CSMA/CD). application program A program, such as a financial spreadsheet program, that performs an end-user task.
  • Page 80 A binary digit; the smallest unit of information in a binary system of notation, designated as a 0 or a 1. The name assigned to Digital’s suite of special-purpose, high-performance protocols, including LAT, LASTport/Disk, LASTport/Tape, and LASTport/PDQ. boot See bootstrap. boot device The device that is booted at system startup.
  • Page 81 coaxial cable A 2-conductor, concentric, constant-impedance transmission cable. communications line A cable along which electrical signals are transmitted. Devices or systems that are connected by a communications line can share information and resources. computer system A combination of system hardware, software, and external devices that performs operations and tasks.
  • Page 82 DECconnect Digital’s simple, cost-effective cabling system for extending Ethernet and terminal interconnections into offices and work areas. DECconnect faceplate See faceplate. DECnet Digital’s networking software that runs on nodes in both local and wide-area networks. default A value or setting used by the system if you do not enter your own. Default settings are often set at the factory and reflect the most commonly used values.
  • Page 83 disk A flat circular plate with a coating that stores data magnetically in concentric circles (tracks). A disk resides permanently inside a disk drive, while a diskette is removable. disk drive A device that holds a disk. The drive contains mechanical components to spin the disk and move the read/write heads that store and read information on the surface of the disk.
  • Page 84 hardware The physical components—mechanical and electrical—that make up a system. Compare to software. head The part of a fixed disk drive, diskette drive, or tape drive that reads, records, and erases data. Also called read/write head. icon A graphic symbol that visually represents a device or a procedure’s function. IEEE Institute of Electrical and Electronics Engineers.
  • Page 85 load device The drive that holds the distribution media during software installation. local area network (LAN) A high-speed communications network that covers a limited geographical area, such as a section of a building, an entire building, or a cluster of buildings. It is a privately owned communication network whose speed is upward of 1 megabit/second.
  • Page 86 network coordinator The network coordinator manages the network, assigns unique node names and addresses for each system on the network, and provides administrative assistance to network users. network manager See network coordinator. node An individual information-processing unit, such as a computer, workstation, or peripheral device, that is connected to a network.

  • Page 87: Connector

    program mode The state in which the computer is controlled by the operating system. After the operating system is installed, the system always operates in program mode, unless you put it into console mode. See console mode. prompt Words or characters that the system displays to indicate it is waiting for you to enter a command.
  • Page 88 single-segment LAN A LAN that is composed of only one coaxial cable segment. See also section and segment. Small Computer System Interface (SCSI) An interface designed for connecting disks and other peripheral devices to computer systems. SCSI is defined by an American National Standards Institute (ANSI) standard and is used by many computer and peripheral vendors throughout the industry.
  • Page 89 terminator A connector used on one or both ends of an Ethernet segment that provides the 50-ohm termination resistance needed for the cable. ThinWire A Digital trademark used to describe its 10 base 2 (IEEE standard 802.3 compliant) Ethernet products used for local distribution of data. ThinWire connector The connector on the rear of the system unit to which the ThinWire Ethernet cable is attached.
  • Page 91 Index Compact disc (cont’d) testing, 5–12 unloading, 2–16 ANSI standard Compact disc caddy, 2–12 SCSI, A–1 Compact disc drive, 1–2, 2–12 Asterisks turning on, 2–11 in power-up display, 5–5 Configuration display, 3–7, 5–8 code example, 5–8 device mnemonics, 5–9 Configurations Barrel connector, 4–3 customizing, A–1 Baud rate...
  • Page 92 Ethernet, 4–9 system exerciser, 5–10 Faceplate, DECconnect ThinWire Ethernet, 4–2 connecting, 4–5 Dimensions Features system unit, B–2 InfoServer 150 system, 1–2 Disc drives Field service, 5–13 RRD42, 1–3 turning off, 2–18 turning on, 2–11 Disk drives Grounding power strip, 2–2 RZ, 1–3...

  • Page 93: Connector Covers

    MMJ console port, 2–4 ID number Modem port, 2–4 setting for RRD42 tabletop drive, A–3 Moving the system, 2–2 InfoServer 150 system features, 1–2 to 1–3 hardware components, 2–3 Network select button, 2–4 overview, 1–1 to 1–3 setting for standard Ethernet, 4–9 possible applications, 1–1...

  • Page 94: Removing Scsi Terminator

    Power-up display (cont’d) SCSI terminators (cont’d) examples of common status messages in, removing, 3–2 5–5 SCSI ID numbers low battery, 5–5 creating custom configurations, A–1 setting the clock, 5–5 default settings, A–1 system exerciser, 5–10 definition of, A–1 troubleshooting, 2–12, 5–3 RRD42, 3–7 Program mode, 5–12 rules for setting, A–3...

  • Page 95: Ports And Connectors

    Standard Ethernet connector, 2–4 Standard Ethernet light, 2–4 Standard Ethernet networks T-connector connecting to, 4–8 to 4–11 attaching terminators, 2–7 setting network select button for, 4–9 attaching to system unit, 2–6 verifying, 4–9 connecting ThinWire Ethernet cable, 4–3 Starting the system with a console, 2–18 connecting to system unit, 4–4 Starting up, 2–11 diagnostics, 2–7...
  • Page 96 ThinWire Ethernet network (cont’d) Turning off the system, 2–18 troubleshooting, 4–6 Turning on the system, 2–11 verifying, 4–2 ThinWire Ethernet segment, 4–3 Transceiver cable, 4–10 Troubleshooting, 5–1 to 5–15 Unloading configuration display, 5–8 compact disc, 2–16 expansion box, 5–4 Unpacking lights (LEDs), 5–13 expansion box, 3–3 mnemonics for system exerciser, 5–10...

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