Seagate 4320NT User manual

INSTALLATIONMANUAL
^v .
DAT Drive
<SP Seagal®

FCCNotice
Thisequipmentgeneratesandusesradiofrequencyenergyand,ifnot
installedandusedinstrictaccordancewiththemanufacturer'sinstruc-
tions,maycm:v.interferencetoradioandtelevisionreceptionwhich
couldvoidtheuser'sauthoritytooperatetheequipment.Ithasbeen
testedandfoundtocomplywiththelimitsfora ClassВ digitaldevice
pursuanttoPart15ofFCCRules,whicharedesignedtoprovidereason-
ableprotectionagainstsuchinterferenceina residentialinstallation.
However,thereisnoguaranteethatinterferencewillnotoccurina par-
ticularinstallation.Ifinterferencedoesoccur,trytocorrectitbytaking
oneormoreofthefollowingmeasures:
•Reorientorrelocatethereceivingantenna.
•Increasetheseparationbetweenthecomputerandthereceiver.
®Connectthecomputerintoanoutletona circuitdifferentfrom
thattowhichthereceiverisconnected.
•Consultthedealeroranexperiencedradio/televisiontechnician
forhelp.
YoumayfindthefollowingbookletpreparedbytheFederal
Communic4tionsCommissionhelpful:HowtoIdentifyandResolve
Radio-TVInterferenceProblems.Thisbooklet(StockNo.004-000-
00345-4)isavailablefromtheU.S.GovernmentPrintingOffice,
Washington,DC20402.Further,thisequipmentcomplieswiththelim-
itsforClassВ digitalapparatusinaccordancewithCanadianRadio
InterferenceRegulations.
CetappareilnumeriquedelaclasseВ estconformeauReglementsur
brouillageradioelectrique.C.R.C.,ch.1374.
SeagateandtheSeagatelogoareregisteredtrademarksofSeagate
Technology.Allothertrademarksmentionedinthismanualarethe
propertyoftheirrespectiveowners.
„Cop.,right1996,SeagateTechnologyAllrightsreserved.Nopartofthis
publicationmaybereproduced,storedina retrievalsystem,ortransmit-
ted,inanyformorbyanymeans,electronic,mechanical,photocopying,
recordingorotherwise,withoutpriorwrittenpermissionfromSeagate
Technology.
DocumentNo.10002664-002
StockingNo.601-090

DAT Drive
Introduction
Thisinstallationmanualgivesyouinformationabout
installingSeagateDigitalAudioTape(DAT)drives.The
rangeofDATdrivescoveredinthismanualsupportthe
DigitalDataStorage(DDS),DigitalDataStorageData
Compression(DDS-DC),andDigitalDataStorage-2
(DDS-2)tapeformats.
ThefollowingtableidentifiesthevariousmodelsofDAT
drivescoveredbythismanualandtheformatsthatthey
support.
Parameter DDS DDS-DC DDS-2
Capacity 2.0GB 2.0/4.0GB* 4.0/8.0GB*
3.5-ininterna! 4320NT 4324NP 4326NP
CTD2004H-S CTD4004H-S CTD8000H-S
STD12000N STD14000N STD18000N
5.25-ininternal 4320RT 4324RP 4326RP
CTD2004R-S CTD4004R-S CTD8Q00R-J3
STD22000N STD24000N STD28000N
External 4350XT 4324XP 4326XP
CTD2004E-S CTD4004E-S CTD8000E-S
STD62000N STD64000N STD68000N
" Typicalwithdatacompression
Before You Begin (Internal Models Only)
Keepthefollowingguidelinesinmindasyouinstallthe
unit:
•Toprotecttheinternaldrivefromstaticelectricity,
DONOTremoveitfromtheantistaticbaguntilyou
arereadytoinstallit.
•Beforeyouremovethedrivefromtheantistaticbag,
toucha groundedmetalsurfacetodischargeany
staticelectricitybuildupfromyourbody.
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DAT Drive
A
Caution:Ifyoutouchstatic-sensitiveparts
ofthedrive,suchastheprintedcircuit
board,anddischargestaticelectricity,the
componentsmaybedamaged.
•Holdthedrivebyitsedgesonlyandavoiddirect
contactwithanyprintedcircuitboardexposed.
•Laythedriveonlyontopoftheanti-staticbagor
returnittothebagwhenyouneedtolayitdown.
Cabling and Connectors
TheseDATdrivessupportconnectiontoa standard,
single-endedSCSIorSCSI-2interface.Eithera 50-
conductorflatcableor25-signaltwisted-paircablewitha
maximumlengthof6 meters(19.5feet)maybeusedto
connectthedrivetoitsSCSIhostadapteroutput.
Single-EndedSCSIConnector-InternalModels
Theinternaldrivesprovidea 50-pin,right-angle,dual-
rowconnectoronthemainPCBattherearoftheunit.
Single-EndedSCSIConnector-ExternalModels
Theexternaldrivesprovidetwo50-pin,shielded
connectors(ANSIAlternative2)ontherearpanelofthe
drive.Theseconnectorsconsistoftworowsofribbon
contactsspaced2.16mm(0.085in)apart.
Thesetwoconnectorsfacilitateaddingthedrivetoa
daisy-chainconfiguration.Eitherconnectorisa "SCSI
IN"connection;theotherisa "SCSIOUT"connection.
Whenthedriveisthelastdeviceinthechain(ortheonly
device),anexternalterminatormustbepluggedinthe
"SCSIOUT"connector.(SeagateP/N38-9-74000000)
installing the Internal Models
Inthismanual,twotypesofdrivesarereferenced-the3.5-
inchdriveandthe5.25-inchdrive,respectivelyInstalling
thesetwotypesofdrivesconsistsofa feweasysteps:
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DAT Drive
1.Configureoptions.
2.Mountthedriveunit.
3.Completethepowerandinterfaceconnections.
Theinstallationprocedureisthesameforbothtypesof
drivesexceptphysicallymountingtheunitinthe
computer.Thefollowingtextexplainstheinstallation
stepsforbothtypesofdrives.
ConfiguringOptions
Youconfigurethedriveoptionsbysettingswitchesor
installingjumpers,asdescribedinthefollowing
subsections.
Ifyoudonotwishtousetheswitch,setallswitchesto
theoffposition,andconfigurethedriveusingthejumper
block.
SCSIDeviceAddress(SIthroughS3)
ThethreeswitchesSIthroughS3correspondtotheSCSI
addressidentificationbits0 (LSB)through2 (MSB)
respectively.Settheswitchestomatchyouraddress.If
usingtheDIPswitchtosetSCSIaddress,movejumpers
forSCSIaddressonthejumperblocktotheOFFposition.
MediaRecognitionSystem(NIRS)(S4)
TheS4switchenablesordisablesMediaRecognition
System(MRS)mode.ThedefaultisMRSdisabled(S4=
ON).IfS4isON,thedrivereadsorwritesbothMRSand
non-MRSmedia.IfS4isOFF,thedriveonlywritesto
MRSmedia.
ParityCheckEnable(S5)
TheS5switchenablesordisablesparitycheckingforthe
SCSIbus.Thedefaultisparitydisabled(S5=OFF).
DDS-Pass-ThroughMode(S6)
TheS6switchenablesordisablesDDSpassthrough
mode.ThedefaultisDDSpassthroughmodedisabled
(S6=OFF).IfusingtheDIPswitchtosetDDS-Pass-
Throughmode,movejumpersforDDSPass-throughon
thejumperblocktotheOFFposition.
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DAT Drive
S6=0N,enablespassthrough,(DataCompression
disabled)
S6=OFF,disablespass-through,(DataCompression
enabled)(DCmodelsonly.)
ReservedSwitch(S7)
TheS7switchisreservedandshouldbeleftinitsfactory
defaultsetting.(Off)
Power-onSelfTestMode(S8)
TheS8Switchenablesordisablesexecutionofpower-on
selfdiagnosticswhenthepowercomeson.Thedefaultis
power-onself-testmodedisabled(S8=OFF).IfON,the
driverespondstoSCSIoommandsaftersuccessful
completionofthetest(about5 seconds).IFusingtheDIP
switchtosetpower-onself-testmode,configurejumpersfor
power-onself-testonthejumperblocktotheOFFposition.
SettingOperationalSwitches
Settheswitchesbeforeyouinstallthedriveinthe
computer.
Thefollowingconfigurationisthestandarddefaultsetup:
•SCSIIDO
оThedrivereadsorwritesbothMRSandnon-MRS4-
mmmedia.
•Paritycheckingisdisabled.
•DDS-DCdatacompressionisenabled.(Appliesonly
tomodelsthatsupportdatacompression)
•Thepower-onself-testdiagnosticsofthedriveare
disabled.
•Terminatorpowerisdisabled.
•Activeterminatorisdisabled.
Figure1 illustratestheswitchbanklocationforthe3.5-inch
internaldrive(viewofthebottomofthedrive).Youaccess
theswitchbankthroughoneoftherectangularcutouts
dependingonthemodelofthedrive.
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DAT Drive
Figure 1
Switchbank Access-3.5-Inch Drive
Figure2 illustratestheswitchbanklocationforthe5.25-
inchinternaldrive(viewofthebottomofthedrive).'You
accesstheswitchbankthroughoneoftherectangular
cutoutsdependingonthemodelofthedrive.
Figure 2
Switchbank Access-5.25-Inch Drive
Installation Manual Page 5

DAT Drive
Figure3 showsthedefaultsettingsfortheinternaldrives.
Figure 3
Dip Switch Default Settings
S8 S7 S6 S5S4S3S2S1-OFF
•Default
Settings:
0 П О О О В 0 0
Sett-TeslReservedDOSParityMRS
Pass-ThroughMode
0N=EnableOłfcDOS0N=batoOffcAI
(0FF=Dsable} |0FF=D0S-Gq(OFF-.Disabln) (OFFERS)
DSSZ-DCMcdefc
^Shown:General purpose
defaultsettingsonly
SCSI Ю
OFFOFFOFF0
OFFOFFON1
OFFONOFF
OFFONON
ONOFFOff
ONOFFON
ONONOFF
OHONON
-ON
Note:ThedrivemustbeturnedOFFthenONora
ОSCSIBusResetmustbereceivedinorderforswitch
settingstotakeeffect.
Ifthedefaultsettingsarecorrectforyoursystem,goto
MountingtheDriveUnit.
Ifyouneedtochangeanydefaultsettings,refertothe
appropriatefollowingsection;makethechangesandthen
gotoMountingtheDriveUnit.
SCSIDeviceAddress(S1throughS3)
ThethreeswitchesSIthroughS3correspondtotheSCSI
deviceaddressidentificationbits0 (LSB)through2 (MSB),
respectivelyFigure3 showstheswitchsettingsfortheeight
possibleSCSIdeviceaddresses.ThedefaultsettingisSCSI
address0.
Note:EachSCSIdeviceona busmusthavea unique
SCSIID.ThehostcontrollerusuallyusesID7.
MediaRecognitionSystem(MRS)(S4)
Themediarecognitionsystemallowsthedrivetodetect
DDScartridgesthatsupportthisfeature.Useofnon-DDS
mediamightappeartogivesatisfactoryresults,butthe
inferiorspecificationsofsuchmediamightcausedata
integrityproblems.
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DAT Drive
TheS4switchenablesordisablesMediaRecognition
System(MRS)mode.IfS4isON,thedrivereadsor
writesbothMRSandnon-MRS4-mmmedia.
IfS4isOFF,thedriveonlywritestoMRSmediabutwill
readanykindof4-mmmedia.
S4= ONdisablesMRS(Default)
54= OFFenablesMRS
ParityCheckEnable/Disable(S5)
TheS5switchenablesordisablesparitycheckingforthe
SCSIbus.
55= ONenablesparitychecking
55= OFFdisablesparitychecking(Default)
Whenparitycheckingisdisabled,parityisstillgenerated
bythedrive.
DDSPass-ThroughModeEnable/Disable(S6)
TheS6switchenablesordisablesDDSpass-through
mode.
56= ONenablesDDSpass-throughmode
(Datacompressiondisabled)
S6= OFFdisablesDDSpass-throughmode
(Default)
(Datacompressionenabled)
ThefunctionoftheS6switchcanbeover-riddenbythe
properSCSIMODESELECTcommandissuedfromthe
hostcomputer.RegardlessofthepositionofS6,the
MODESELECTcommandcanenableordisabledata
compression.
ReservedSwitch(S7)
TheS7switchisreservedandshouldbeleftinitsfactory
defaultsetting(OFF).
Installation Manual Page 7

DAT Drive
Power-onSelf-TestModeEnable/Disable(S8)
TheS8switchenablesordisablesexecutionofpower-on
self-testdiagnosticswhenthepowercomesON.IfON,
thedrivewillonlyrespondtoSCSIcommandsafter
successfulcompletionofthetest(about5 seconds).
S8= ONenablespower-onself-testmode
S8= OFFdisablespower-onself-testmode(Default)
TheconfigurationjumpersareusedtocontrolSCSIbus
terminationandterminatorpower.Thejumperscanalso
beusedforremoteSCSIaddressselection.Figure4
illustratesthelocationofthejumpersforthe3.5-inch
drive.
Figure 4
Location of Jumpers for 3.5-Inch Drives
ConfiguringJumpers
4
POWER
CONNECTOR
JUMPER
BtOCK
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DAT Drive
Figure5 illustratesthelocationofthejumpersforthe
5.25-inchdrives
Figure 5
Location of Jumpers for 5.25-inch Drives
Youcanusepins1 through6 toremotelyselecttheSCSI
address.Todoso,installa remoteSCSIIDswitchand
connectittopins1 through6.Pins1-2configurebit0;
pins3-4configurebit1;andpins5-6configurebit2.If
youusethismethodforIDselection,setswitchesSI
throughS3totheOFFposition.(SeeFigure3.)Figure6
showsthejumperlayout.
JUfcffcR
BLCCX
RemoteSCSIAddressSelection
Installation Manual Page 9

DAT Drive
Figure 6
Jumper Configurations
REMOTE
SCSIID
LACTIVETERMINATOR
ENABLED
11-12JUMPER-ON
lTERMPOWERON
15-16JUMPER- ON
JUMPEROFF
ActiveTerminator
Theactiveterminatoroptionisdisabledasthefactory
default.Ifyouneedenableactiveterminationonthe
drive,placea jumperbetweenpins11and12.
Note:Youonlyneedtoenabletheactiveterminator
optionifthedriveistheonlydeviceontheSCSIbus
oristhelastdeviceonthebus.
Youcanenabletei-minatorpowerifneededfor
terminatorsorotherSCSIdevicesthrougha jumper
placement.Thefactorydefaultforinternaldrivesiswith
terminatorpowerdisabled(jumperoveronepin).To
enableterminatorpower,placethejumperoverthetwo
pins-15and16-asshowninFigure6.Besurethejumper
isfirmly inplace.
TerminatorPower
A
Caution:Ifthejumperisinstalled,be
carefulnottoshorttheTERMPWRsignal
toground.
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DAT Drive
Thedrivecontainsa terminatorpowerfusetoprevent
damagetodrivecomponentsincasetheterminatorpower
isshorted.IfterminatorpowerisenabledandtheSCSI
cableisconnectedupsidedownforexample,thisfusemaj
blowtopreventdamagetothedriveitself.Ifthisoccurs,
thedrivewillnotlongersupplyterminatorpowertothe
busandwillneedtobereturnedtoanauthorizedrepair
facilitytocorrecttheproblem.
MountingtheDriveUnit
Theinternaldrivescanbeinstalledinthreedifferent
orientations:onehorizontally(ejectbuttonright)andtwo
vertically(ejectbuttonuporejectbuttondown).
Thechassisforboth3.5-inchand5.25-inchdrivescontain
threadedmountingholesforM3.0metricscrews.The
maximumlengthfortheM3.0metricscrewsis4 mm.
Useoflongerlengthscrewsmaydamagethedrive.
Onthe3.5-inchdrive,fourscrewsarelocatedonthe
bottom,andfive areoneachsideoftheframe.Forthe
5.25-inchdrive,fourscrewsarelocatedonthebottom,
andsixareoneachside.
CompletingConnections
Thepowerandinterfaceconnectorsfortheinternaldrives
arelocatedatthebackofthedriveunit.Figures1 and4
illustratetheseconnectionsforthe3.5-inchdrives,and
Figures2 and5 illustratetheseconnectionsforthe5.25-
inchdrives.
•Note:Tarnoffallpowerbeforeinserting
connectors.Pin1 ontheSCSIconnectoristoyour
rightasyoulookatthebackofthedrive.(See
Figure1,2,4,or5.)YourSCSIcableshouldhave
Pin1 highlightedbya colorstrip.Besuretomate
Pin1 onthecabletoPin1 onthedrive.Failureto
dosocouldmakethedriveinoperative.
Installation Manual Page 11

DAT Drive
•Therecommendedpowermatingconnectorrequires
anAMP1-48024-0housingwithAMP60617-1pins
orequivalent.
Theexternaldrivesarecompactexternalunitsthat
connectasa turnkeysubsystemtothecomputer.The
followingconfigurationisthestandarddefaultsetup:
•ThedrivereadsorwritesbothMRSandnon-MRS
4-mmmedia.
•Paritycheckingisdisabled.
•DDS-DCdatacompressionisenabled.(Applies
onlytomodelsthatsupportdatacompression)
•Thepower-onself-testdiagnosticsofthedriveare
disabled.
•TerminatorpowerissuppliedtotheSCSIbus.
Note:SomeconfigurationsettingsintheEEPROM
canbechangedusingtheModeSelectcommand.
Refertotheappropriateproductdescriptionmanual
foryourmodelofdriveforthespecificSCSI
information.
Installingthesedrivesconsistsofa feweasysteps:
1.SelectSCSIID.
2.Completetheinterfaceconnection.
3.Completethepowercordconnection.
Therearpaneloftheexternaldriveunitcontainsthe
SCSIaddressselectionpushswitch,thetwointerface
connectors,theON/OFFswitch,andthepowercord
connection.Figure7 illustratestherearpanel.
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DAT Drive
Figure 7
Rear Panel of External Drives
SelectingtheSCSIID
LocatetheSCSIaddresspushswitch.SelecttheSCSI
addressforthedrivebypressingthe+ or- buttonuntil
thedesiredaddress(0through7)appearsinthewindow.
TurntheunitpowerOFF;then,ON.
^Note:TheunitpowermustbeswitchedOFFthen
ON,ora busresetmustoccurforanychangein
SCSIIDtotakeeffect.
CompletingtheInterfaceConnection
TheexternaldrivesprovidetwoSCSIconnectorstoallow
daisychaining,(SeeFigure8.)Eitherconnectorcan
connecttothehostcomputeroranySCSIdeviceina
daisychain.
Note:Turnoffallpowerbeforeconnectingcables
andtheterminator.
Installation Manual Page 13

DAT Drive
°Whenthedriveisthelastdriveinthechain(orthe
onlydrive),a singleinterfacecableisattachedto
oneconnector,anda terminatingplugisinstalledin
theotherconnector.(SeagateP/N38-9-74000000)
•Whenthedriveiswithinthechain,theinterface
cablefromtheprecedingdeviceisconnectedinone
connector;aninterfacecableisalsoconnectedfrom
theotherconnectortothefollowingdevice.Inthis
case,noterminationisrequired.
Figure8 illustratesthedaisy-chainconnections
Figure 8
Daisy Chain Diagram
DATDRIVEASTHEFINALDEVICE
»TERMINATOR
PATDRIVEWITHINA CHAIN
DATDRIVE
022—
•FINAL
DEVICE
MUSTHAVE
TERMINATOR
Thesametypeofmatingconnectorisusedforeitherof
thedaisy-chainconnections.Thematinginterface
connectorisa single-endedconnectorasdescribedearlier.
ConnectingthePowerCord
SeeFigure7 forthelocationofthepowercordconnector.
Insertthepowercordmatingconnectorintotheconnector
ontherearpanel.Besuretheconnectionissecure.
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