Scsi terminator | Apple 8500/150 Series, 8500 Series instruction

IMPORTANT The total length of the cables in a SCSI chain should not exceed 6 meters (20 feet). SCSI cables must have a 110-ohm impedance. For best results, use SCSI cables manufactured by Apple Computer.

mMake sure that the last (or only) device in the SCSI chain has a terminator. Make sure that no other external SCSI device has a terminator.

To ensure accurate transmission of information, a terminator must be at each end of a SCSI chain. Your internal hard disk, which is the first device in the chain, has a built-in terminator.

Some external SCSI devices from manufacturers other than Apple have built-in terminators. (Check the information that came with the device.) If the device at the end of the SCSI chain does not have a built-in terminator, you need to attach an external terminator.

SCSI terminator

If your SCSI device has a built-in terminator, you may choose to use it as your first or last device in the chain, or you may have your Apple-authorized service provider remove any extra built-in terminators. You can attach or remove external terminators yourself.

Connecting Additional Equipment

61

Image 61

Apple 8500/150 Series, 8500 Series appendix Scsi terminator

Contents

Getting Started Monitor Computer power cord Monitor power cordMouseKeyboard Apple PlainTalk Microphone optional Plugging in the computer Connecting a monitor Installing an expansion cardConnecting the monitor power cord Place the monitor next to the computer Plug in the monitor power cord Connect the monitor power cord to the monitorOn some monitors, the cord is already attached On some monitors, the cable is already attached Connecting the monitor cableAttach the monitor cable to the monitor Connecting a keyboard with a built-in cable Connecting the mouse and keyboard Connecting a keyboard with a separate cable Turning the computer on Connecting other equipmentTurn on your monitor Chapter Check to see what’s on your screen Hard disk icon Macintosh desktop Problems turning your computer on? What’s next? Slide your mouse along your mouse pad or desk Learning the basics Chapter Menus Reviewing the basicsMenu Icons Window 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 Turning the computer off Using the Power keyFollowing dialog box appears on the screen Using the Shut Down command Getting Started Where to find answers Getting Started 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 Main Macintosh Shortcuts window appears Learning useful shortcutsClick one of the category buttons Chapter Your computer at a glance Connecting Additional Equipment Speaker Power-on light Green lightOptional CD-ROM drive Optional Monitor Monitor port Apple Desktop Bus ADB port Access covers for≈Sound input port Left & right About your computer’s A/V panel Connecting audio equipmentVideo input port Video output port About your computer’s sound ports Computer’s sound ports accept these 3.5 mm connectors Place the audio equipment near the Macintosh Connecting most audio equipment Turn on the computer and the audio equipment Connecting and positioning a microphone Turn on the computer 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 connectors plugs at each end Connecting video equipment for input to the computer Video connection for input from a VCR Follow the directions that came with the VCR or camera Composite video connection for input from a VCR Turn on the computer and the VCR or camera Composite video connection for input from a camera Audio cable with dual RCA connectors plugs at both ends Connecting video equipment for output from the computerAssemble the VCR and cables you need Video connection for output from the computer Follow the directions that came with the VCR Composite video connection for output from the computer Television used as a monitor with an S-video connection Using a television as a monitor Chapter 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 Connecting Additional Equipment Page Installing application programs Installing and Using Application Programs Chapter Working with several programs at a time Finding out which programs are open Switching programsHiding and showing windows on the desktop Backing up your files Using Power Macintosh application programsSpecial memory requirements Shared libraries Using the Optional CD-ROM Drive Tray opens Inserting a CD-ROM disc Open the tray Ejecting a CD-ROM discTake 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 Desktop is rebuilt Rebuild your desktop regularlyWhile holding down the Space bar, restart your computer 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 Your Macintosh can’t read a floppy disk Icons do not appear correctly on your screenYou can’t eject 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 Problems using the CD-ROM drive Solutions to CD-ROM problemsCD-ROM drive icon does not appear on screen Tray of your CD-ROM drive won’t open If no 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 You are unable to record sound from an audio CD Problems using Photo CDsYour CD-ROM drive will not open Photo CDs If your computer’s performance decreases Obtaining updated Apple software Solving printer problems EWorld AppleLink 106 Chapter Internet Apple Computer Higher Education gopher server CompuServe Internet ftp.support.apple.com Internet ftp.info.apple.comEach time you open a folder, a new Macintosh window opens 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 Open the Drive Setup icon How to initialize a hard diskList of drives, click the disk you want to initialize 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 Repair to begin testing and repairing the disk If Disk First Aid cannot correct the problemClick the icon of the disk you want to test When should you install system software? Installing or reinstalling system softwareWhen should you reinstall system software? You use the Drive Setup program to update your hard disk Installing system softwareFind and open the Disk First Aid icon List of drives, click your startup disk Click OK Easy Install dialog box appears Doing a clean installation of system software To do a clean installation, follow these steps Click the Install New System Folder button and click OK Hold down Shift-x-K to start the clean installationFollowing dialog box appears 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 126 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 139 Ejecting a disk Power supplyIf you can’t eject a floppy 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 Card installation Expansion card power requirementsDo not completely remove the screws or the back panel Turn off the computer Remove the cover from the computer Power supply Lower the retainer Squeeze the sides of the retainer and pull down Remove the card from its static-proof bag Hold the card by its edges to avoid touching the connector Align the connector end of the card with the expansion slot Back into place Replace the retainer Tighten the screws on the back panel Replace the cover on the computer Upgrading the processor Appendix C Special Keys on Your Keyboard Caps Lock key Clear key Command key 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… Page Index Index Index Authorized service providers error messages troubleshooting Index Index Index Index See Scsi Index Index User’s Manual Apple Computer, Inc Contents Getting Help Using the Optional CD-ROM Drive 145 129155 Index 161 Radio and television interference FCC statement Vcci statement CD-ROM drive DOC statement Chapter Chapter Getting Started Getting Help Apple Computer, Inc