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Apple G3 Minitower manual Connecting a Scsi Device, External Scsi terminator

Models: G3 Minitower

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To terminate the last device in the chain, do one of the following:

mUse a device that has a built-in terminator as the last device in the chain.

If you wish to attach two or more SCSI devices that have built-in terminators, an Apple- authorized service provider can remove the extra built-in terminators.

mIf the device at the end of the SCSI chain does not have a built-in terminator, attach an external terminator. You can attach or remove external terminators yourself. (Do not use a black terminator; the black terminators are for Macintosh IIfx computers and certain LaserWriter printers only.) Terminators are available at authorized Apple dealers.

External SCSI terminator

Important Do not attach a terminator to a device that already has a built-in terminator. If you do, your computer may not start up properly.

Exception to the “first and last” rule: If the total cable length in the chain is greater than 10 feet, the chain may need a third terminator at the 10-foot point. Do not add the third terminator unless you are experiencing a SCSI problem, and check all other possible causes of the problem before adding the third terminator.

Connecting a SCSI Device

After you read “Before You Connect a SCSI Device” earlier in this chapter, follow the instructions below. Use these general instructions in conjunction with the more specific instructions that came with your SCSI device.

1Shut down your Macintosh and make sure the SCSI device is switched off.

Warning Do not connect or disconnect any device while the device or your Macintosh is turned on. Doing so could damage the device, your computer, or both. Do not attach or remove a terminator while the computer or any device is turned on.

2Use a SCSI cable to connect the device either to the computer’s SCSI port or to the last SCSI device already in the chain.

Use the thumbscrews and metal clips on the connectors to make a tight, reliable connection. Do not overtighten the thumbscrews.

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Apple G3 Minitower manual Connecting a Scsi Device, External Scsi terminator

Contents

Setting Up Your Computer Sometimes built into the monitor Setting Up Your Computer Positioning and Plugging In the ComputerPower cord socket Power cord plug 230Connecting a Monitor To connect the monitor, follow these stepsMonitor power socket Monitor portConnecting the Mouse and the Keyboard to the Computer Plug the mouse cable into the keyboardChapter Optional internal modem port RJ-11 Modem port icon Connecting a ModemModem port icon Modem port Mini DIN-9 Turning the Computer On Problems Turning Your Computer On? What’s Next? Turning the Computer OffUsing Your Macintosh Your Computer’s Components and Front Panel Controls OptionalWorks with high-density and double-sided 3.5 floppy disks Your Computer’s Ports and Connectors Optional AV portsConnects your Macintosh to a printer or LocalTalk network To use your CD-ROM drive, follow these instructions Using the Computer’s Built-in DrivesUsing the CD-ROM Drive Press the Open/Close button next to the CD-ROM driveUsing the Floppy Disk Drive and Optional Zip Drive Connecting Audio EquipmentSound Input and Output Ports Optional Left and Right RCA-Type Audio Ports Stereo miniplugRCA-type plug Left and right RCA-type ports accept this type of connectorConnecting Most Audio Equipment RCA plugsTurn on the computer and the audio equipment Sound Output PortConnecting and Using a Microphone Video connector Connecting Video EquipmentYour Macintosh can work with two major video formats Connecting Video Equipment for Input to the Computer Video plugVideo Input port Audio input ports Left and right Video cableÆS-video Turn on the computer and the VCR or camera˜ Composite Video Input port Audio Connecting Video Equipment for Output From the Computer Video connection for output from the computer Video Audio Connecting a TelevisionOutput port Output ports TV Mirroring icon Resolution icon Composite Video Output port Audio outputBefore You Connect a Scsi Device Connecting External Scsi DevicesScsi icon Scsi port DB-25 Scsi system cable Connecting a Scsi Device External Scsi terminatorConnecting a Printer Printer port icon Printer port Mini DIN-9Connecting an ADB Input Device Connecting a Second MonitorADB port icon ADB port Mini DIN-4 Connecting to a Local Area Network LocalTalk adapter Connecting to a LocalTalk NetworkLocalTalk cable Printer port LocalTalk adapter LocalTalk cable Connecting to a 10Base-T Ethernet Network Ethernet icon 10Base-T Ethernet port RJ-45Ethernet port Wall plate Connecting to Multiple Networks SimultaneouslyConfiguring Your Network Connection 10Base-TSecuring Your Computer Security lock portInstalling PCI Cards, Memory Internal Storage Devices About PCI Expansion CardsVideo memory expansion slot Dram Dimm slots ROM slot Expansion Card Power RequirementsAbout Memory Front of computerImportant Use only Sgram SO-DIMMS Dram ConfigurationsVideo Memory Configurations About Internal Storage OptionsConnecting an Additional ATA Device Pin connectorConnecting an Internal Scsi Device Opening the Computer Back of computer Disconnect the power cord from the back of the computer Remove the cover Press the button and liftUse the handle to open the chassis Installing a PCI Expansion Card Connector Port access cover in place ShieldRemove the screw that holds Disconnect it PCI slotInstalling an Unusually Long PCI Card Installing PCI Cards, Memory, and Internal Storage Devices Memory Installing Dram or Video Memory, next Installing Dram or Video MemoryConnectors Notches Notch ConnectorsSgram SO-DIMM Your DIMM’s shape and components may vary Video memory slotInstalling a Hard Disk or Other Storage Device Bottom chassisRemove the plastic faceplate Carefully lift up the computer so that it sits uprightRaised catch Drive carrier Remove both screwsScsi device Replace the plastic faceplate Sheet metal shield Reinstall both screwsSnap the plastic faceplate back into place Closing the Computer Lock the chassis by rotating the locking levers Replace the computer cover panel What’s Next? Page Health-Related Information About Computer Use Musculoskeletal DiscomfortTo prevent discomfort and eye fatigue Eye FatigueArranging Your Office Shoulders relaxedAvoiding Fatigue Safety InstructionsWhat About Electromagnetic Emissions? Handling Your Computer Equipment Appendix Exposed part From magnets Handling Floppy Disks125 F 52 C 50 F 10 C Do not touch Keep disks away Disk behindHandling Zip Disks Do not touch Keep disks awayDo not expose discs To avoid damage to your discs, keep these points in mindHandling CD-ROM Discs To direct sunlight On discs Do not spill liquidsCleaning the Computer Case Cleaning Your EquipmentPower Supply Cleaning the MonitorLocking and Unlocking the Mouse Here on your mouseRecessed area surrounding ring Setting Up Your Power Macintosh Apple Computer, Inc Contents Appendix Health, Safety, and Maintenance Tips Connecting to Multiple Networks SimultaneouslyInstalling PCI Cards, Memory, and Internal Storage Devices About MemoryCommunications Regulation Information Vi Laser Information