Connecting external Scsi devices | Apple 120 Series manual

Connecting external SCSI devices

Your computer has a port for connecting devices that use the Small Computer System Interface (SCSI, pronounced “skuh-zee”). The SCSI port permits high-speed communication between the computer and the device. The SCSI icon appears above the port on the computer’s back panel.

SCSI icon

SCSI port

You can connect SCSI devices to the SCSI port in a chain. The first device in the chain plugs into the SCSI port; the second device plugs into the first device, and so on. SCSI devices commonly used with the Macintosh include hard disk drives, CD-ROM drives, scanners, some printers, and tape or cartridge backup drives.

You can attach up to seven external SCSI devices to the SCSI port. However, if you have a second internal hard disk connected to this SCSI chain you can attach only six external SCSI devices to the port. All SCSI devices connected to this chain must have their own unique ID number.

Note: In addition to the external SCSI port, your computer has a second, internal SCSI connection. The internal hard disk drive that came with the computer is connected to this internal SCSI interface. If your computer came with a CD-ROM player, it is also attached to the internal SCSI interface. An authorized Apple dealer or service provider can attach additional devices to the internal SCSI interface. For more information about the SCSI interfaces, see the Technical Information booklet that came with your computer.

All devices on the same SCSI chain must have unique ID numbers, but devices on different SCSI chains may use the same SCSI ID number. (For example, you could have a CD-ROM player with ID number 3 connected to the internal SCSI chain and a tape drive with ID number 3 connected to the external SCSI chain.)

IMPORTANT “Before You Connect a Device” and “Connecting a SCSI Device,” both later in this section, contain general instructions for attaching SCSI devices to your computer. Be sure also to follow the specific instructions that came with your external hard disk drive or other SCSI device when connecting the device to your Macintosh.

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Apple 120 Series user manual Connecting external Scsi devices

Contents

User’s Manual Apple Computer, Inc Contents Getting Help Connecting Additional Equipment 139 123151 Index 157 Radio and television interference FCC statement Vcci statement CD-ROM drive DOC statementPage Welcome to Power Macintosh Chapter Chapter Getting Started Getting HelpPage Getting Started Macintosh computer Monitor Monitor power cord Computer power cordKeyboard Mouse Apple PlainTalk Microphone optional Plugging in the computer Page Country Single voltage Voltages for different locations Power cord plug Connecting a monitor Installing an expansion cardConnecting the monitor power cord Place the monitor on top of the computer On some monitors, the cord is already attached Connect the monitor power cord to the monitorPlug in the monitor power cord Attach the monitor cable to the monitor Connecting the monitor cableOn some monitors, the cable is already attached Connecting a keyboard with a built-in cable Connecting the mouse and keyboard Connecting a keyboard with a separate cable Turn on your monitor Connecting other equipmentTurning the computer on Getting Started Check to see what’s on your screen Problems turning your computer on? What’s next? Slide your mouse along your mouse pad or desk Learning the basics Chapter Menu Icons Window Reviewing the basicsMenus Windows Icons Saving energy with the Energy Saver control panel Setting energy-saving options Putting your computer to sleep Accessing a sleeping computer over a networkWaking your computer from sleep Scheduling automatic startup and shutdown Using the Shut Down command Using the Power keyTurning the computer off Following dialog box appears on the screen Chapter Where to find answers Page Getting Help Getting answers to your questions Macintosh Guide window, click the Topics button Getting answers with the Topics button Now continue with the next section Small window appears with instructions for you to followClick Customizing Your Computer in the list of topics Read and follow the instructions in this window Macintosh Guide window, click the Index button Getting answers with the Index button Read and follow the instructions in the window Macintosh Guide window, click the Look For button Getting answers with the Look For button If you want to close Macintosh Guide, click here Tips for using Macintosh Guide Identifying objects on the screen Click one of the category buttons Learning useful shortcutsMain Macintosh Shortcuts window appears Chapter Your computer at a glance Connecting Additional Equipment Scsi port Expansion baySecurity lock ports Ethernet port Aaui Video connector Printer port GeoPort Monitor power socket ≤ Power socketRight & left Modem port GeoPort Sound input port Connecting audio equipmentAbout your computer’s A/V panel About your computer’s sound ports Computer’s sound ports accept these 3.5 mm connectors Connecting most audio equipment Turn on the computer and the audio equipment Connecting and positioning a microphone Turn on the computer Follow these steps to connect and position the microphone If the speakers take a dual-plug cable, connect both plugs Connecting external stereo speakersYour finished connections should look something like this Assemble the speakers and the cable you need Connecting video equipment Composite video connectors Video connectors Audio cable with dual RCA plugs at each end Connecting video equipment for input to the computer Composite video connection for input from a VCR Follow the directions that came with the VCR or camera Video connection for input from a VCR Turn on the computer and the VCR or video camera Video connection for input from a camera Connecting external Scsi devices Before you connect a device Scsi terminator Expanding memory Connecting a Scsi device Installing internal drives About Macintosh networking Connecting network cables Chapter Installing application programs Installing and Using Application Programs Chapter Working with several programs at a time Hiding and showing windows on the desktop Switching programsFinding out which programs are open Special memory requirements Using Power Macintosh application programsBacking up your files Shared libraries Using the Optional CD-ROM Drive Tray opens Inserting a CD-ROM disc Press the Open/Close button for your CD-ROM drive Ejecting a CD-ROM discOpen the tray Take the CD-ROM disc out of the tray Playing audio CDs Working with Photo CDs Sharing a CD-ROM disc over a network IIpart TroubleshootingPage If you have trouble When you have questions Take your time Select Restart from the dialog box that appears Start over While holding down the Space bar, restart your computer Rebuild your desktop regularlyDesktop is rebuilt Computer is turned on but the screen is dark Solutions to common problems Computer’s clock keeps time inaccurately Troubleshooting Hard disk icon does not appear on the desktop Sad Macintosh icon appears, and the computer won’t start up You can’t eject a floppy disk Icons do not appear correctly on your screenYour Macintosh can’t read a floppy disk Chapter Troubleshooting Dialog box with a bomb appears Pointer 8 doesn’t move when you move the mouse Typing on the keyboard produces nothing on the screen Troubleshooting You experience problems using an older Macintosh program You experience problems using a document from a DOS computer CD-ROM drive icon does not appear on screen Solutions to CD-ROM problemsProblems using the CD-ROM drive Tray of your CD-ROM drive won’t open If a CD-ROM disc icon appears on your screen Problems using CD-ROM discs You can’t open a document on a CD-ROM disc Problems playing audio CDs Problems using ISO 9660 or High Sierra discs Your CD-ROM drive will not open Photo CDs Problems using Photo CDsYou are unable to record sound from an audio CD If your computer’s performance decreases Obtaining updated Apple software Solving printer problems EWorld AppleLink 100 Chapter Internet Apple Computer Higher Education gopher server CompuServe Each time you open a folder, a new Macintosh window opens Internet ftp.info.apple.comInternet ftp.support.apple.com Initializing a hard disk When do you need to initialize a hard disk? Starting up from a floppy disk Starting up from a CD-ROM discCD-ROM disc will remain in the CD-ROM drive Turn your computer on List of drives, click the disk you want to initialize How to initialize a hard diskOpen the Drive Setup icon When do you need to repair a disk? Repairing a damaged diskTry these suggestions first Disks can become damaged by repeated use and handling List of drives, click the disk you want to test How to test a hard disk Open the Disk First Aid icon How to repair a hard disk or floppy disk Click the icon of the disk you want to test If Disk First Aid cannot correct the problemClick Repair to begin testing and repairing the disk When should you reinstall system software? Installing or reinstalling system softwareWhen should you install system software? Find and open the Disk First Aid icon Installing system softwareYou use the Drive Setup program to update your hard disk Click OK Easy Install dialog box appears Doing a clean installation of system software To do a clean installation, follow these steps Following dialog box appears Hold down Shift-x-K to start the clean installationClick the Install New System Folder button and click OK Click Clean Install It takes a few minutes to complete the installation Replacing special software Doing a custom installation Choose Custom Install from the pop-up menu When should you install or reinstall CD-ROM software? Installing or reinstalling CD-ROM softwareInstalling or reinstalling CD-ROM software Restart your Macintosh 120 Chapter IIIpart Page Health-related information about computer use Appendix a Health, Safety, and Maintenance Tips Musculoskeletal discomfort Arranging your office Eye fatigue Shoulders relaxed What about electromagnetic emissions? Avoiding fatigue Safety instructions Handling your computer equipment Handling the keyboard Handling the monitor Handling floppy disks Handling CD-ROM discs 133 If you can’t eject a floppy disk Power supplyEjecting a disk Cleaning the computer case Cleaning your equipmentCleaning the monitor Cleaning the mouse Rotate the rollers to clean all around them Put the ball and the ring back in place Locking and unlocking the mouse To unlock the mouse, follow these steps Appendix B Installing an Expansion Card Turn off the computer Expansion card power requirementsCard installation 141 Remove the cover from the computer Power supply Flip the expansion card cover open Flip the expansion card cover open Remove the card from its static-proof bag Hold the card by its edges to avoid touching the connector Its final position until you 147 Appendix B Replace the cover on the computer Upgrading the processor Caps Lock key Clear key Special keys on Apple keyboards Arrow keys Control key Power key Return key Shift key Tab keyDelete key Enter key Typing special characters and symbols Diacritical mark Here are other key combinations you may find useful Special key combinationsTo do this… …press this key combinationPage Index Index Index Authorized service providers error messages troubleshooting Index Index Index Index Index See Scsi Index Index Apple Computer, Inc