••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••Cheetah 4LPDisc Driv
8 Cheetah 4LP Installation Guide, Rev. ATechnical support servicesIf you need assistance installing your drive, consult your dealer.Dealers are famili
Cheetah 4LP Installation Guide, Rev. A 9SeaBOARD®SeaBOARD is a computer bulletin board system (BBS) that con-tains information about Seagate’s disc an
10 Cheetah 4LP Installation Guide, Rev. ASeagate Technology FAX servicesSeaFAX®You can use a touch-tone telephone to access Seagate’s auto-mated FAX s
Cheetah 4LP Installation Guide, Rev. A 11Seagate technical supportYou can talk to a technical support specialist during businesshours Monday through F
12 Cheetah 4LP Installation Guide, Rev. AGeneral descriptionCheetah 4LP SCSI disc drives are high-speed, random-accessdigital-data storage devices. Th
Cheetah 4LP Installation Guide, Rev. A 13Table 1. Drive characteristicsCharacteristics of the various drives covered by this manual aregiven in the fo
14 Cheetah 4LP Installation Guide, Rev. ATable 1a. Additional drive characteristicsLegend for following table listing other drive characteristics:A =
Cheetah 4LP Installation Guide, Rev. A 15Table 2. DC power requirements (Amps)1Measured with an average reading DC ammeter. Instanta-neous +12V curren
16 Cheetah 4LP Installation Guide, Rev. A6At power-up, the motor current regulator limits the +12V cur-rent to an average value of less than value sho
Cheetah 4LP Installation Guide, Rev. A 17Initial setup informationThe general information beginning on this page applies to all ofthe Cheetah 4LP driv
ContentsPreface ...1Electrostatic discharge protection...
18 Cheetah 4LP Installation Guide, Rev. ASCSI ID jumpersEach device on the SCSI chain must have a unique SCSI ID.The host system’s SCSI controller usu
Cheetah 4LP Installation Guide, Rev. A 19the case, change the ID so that each device on the SCSI chainhas its own unique ID. Also check your system or
20 Cheetah 4LP Installation Guide, Rev. AFigure 2. SCSI bus terminationTerminator powerYou usually will not need to change this option and can normall
Cheetah 4LP Installation Guide, Rev. A 21Figures 3a, 3b, 3c, and 3d show typical drive connections. Thefollowing table lists the maximum cable lengths
22 Cheetah 4LP Installation Guide, Rev. AFigure 3a. 50-pin I/O connection to driveFigure 3b. 68-pin I/O connection to drive
Cheetah 4LP Installation Guide, Rev. A 23[1] “X” means up to 6 or the maximum allowable number of devices onthe SCSI bus. See system documentation.Fig
24 Cheetah 4LP Installation Guide, Rev. A[1] “X” means up to 15 or the maximum allowable number of devices onthe SCSI bus. See system documentation an
Cheetah 4LP Installation Guide, Rev. A 25Note. This drive model plugs directly into a backplane connec-tor and therefore uses no cables.Figure 3e. Dri
26 Cheetah 4LP Installation Guide, Rev. AProviding adequate coolingThe enclosure design must ensure adequate cooling for thedrive. The maximum ambient
Cheetah 4LP Installation Guide, Rev. A 27Kühlung des SystemsDie Gehäusekonstruktion muß eine ausreichende Kühlung desLaufwerkes gewährleisten. Die Umg
Cheetah 4LP Installation Guide, Rev. A 1PrefaceThis manual contains information for users of the Seagate®Cheetah 4LP SCSI disc drives. It provides sup
28 Cheetah 4LP Installation Guide, Rev. A.Figure 4. Suggested air flow Abbildung 4. Empfohlener LuftstromverlaufAbove unitUnder unitNote. Air flows i
Cheetah 4LP Installation Guide, Rev. A 29Mounting the drive and connecting cablesDo not touch the connector pins or any components on the con-trol boa
30 Cheetah 4LP Installation Guide, Rev. A1. Befestigen Sie das Laufwerk mit vier 6-32-UNC-Schraubenam Gehäuse des Host-Systems. Die beiden Seiten desL
Cheetah 4LP Installation Guide, Rev. A 31defined in IEC 950. Figure 5 provides the pin information forthe DC power connector. To connect the DC power
32 Cheetah 4LP Installation Guide, Rev. ANote. Signal ground on the power control board (PCB) and thehead and disc assembly (HDA) are connected togeth
Cheetah 4LP Installation Guide, Rev. A 33elektromagnetische Strahlung fällt in den Zuständigkeits-bereich des Systemdesigners.5. Replace the host syst
34 Cheetah 4LP Installation Guide, Rev. AFigure 6. Mounting configuration dimensionsAF.050 in. (1.27mm)minimum clearanceLDGEC[3][1]BHMKJJ2[4][2]J6 LE
Cheetah 4LP Installation Guide, Rev. A 35Formatting the driveWarning. Formatting a drive erases all user data. Be sure thatyou understand this princip
36 Cheetah 4LP Installation Guide, Rev. AN drivesN drives sectionSetting the SCSI ID jumpersUse the J6 connector to set the SCSI ID (see Figure 7). T
Cheetah 4LP Installation Guide, Rev. A 37N drivesTerminating the drive“N” model drives are terminated with permanently mounted ICactive terminators. I
2 Cheetah 4LP Installation Guide, Rev. A• Turn off the power before removing or installing the DC powercable.• Do not remove any circuit boards from t
38 Cheetah 4LP Installation Guide, Rev. AN drivesTerminator powerThere are three possible terminator power (TP) configurationsfor “N” model drives (se
Cheetah 4LP Installation Guide, Rev. A 39N drivesOther applicable jumper optionsSeveral other jumper options are available as illustrated.Figure 10. A
40 Cheetah 4LP Installation Guide, Rev. AW/WD drivesW/WD drives sectionSetting the SCSI ID jumpersUse the J6 jumper block to set the SCSI ID (Figure 1
Cheetah 4LP Installation Guide, Rev. A 41W/WD drivesFigure 12. Model “W” and “WD” drive alternate ID selectand LED connectionSCSI ID = 0SCSI ID = 1SCS
42 Cheetah 4LP Installation Guide, Rev. AW/WD drivesTerminating the drive“W” model drives are terminated with permanently mounted ICactive terminators
Cheetah 4LP Installation Guide, Rev. A 43W/WD drivesTerminator powerThere are three possible terminator power (TP) configurationsfor “W” model drives
44 Cheetah 4LP Installation Guide, Rev. AW/WD drivesOther applicable jumper optionsOther option jumpers are available as illustrated below.Figure 15.
Cheetah 4LP Installation Guide, Rev. A 45WC/DC drivesWC/DC drives sectionSetting the SCSI ID jumpersThe SCSI ID for “WC” and “DC” model drives is norm
46 Cheetah 4LP Installation Guide, Rev. AWC/DC drivesApplicable jumper optionsOption jumpers are available as illustrated below. Figure 16. Jumper opt
Cheetah 4LP Installation Guide, Rev. A 47All drivesAll drives (LED connections)Drive Active indicatorThe drive Active LED indicator connections are sh
Cheetah 4LP Installation Guide, Rev. A 3stacked vertically, pay special attention to the top where tem-peratures are usually highest.• Follow the prec
Seagate Technology, Inc.920 Disc Drive, Scotts Valley, CA 95066-4544, USAPublication Number: 83329110, Rev. A, Printed in USA
4 Cheetah 4LP Installation Guide, Rev. AThis unit is a component part and as such is not meant to complywith FCC or similar national requirements as a
Cheetah 4LP Installation Guide, Rev. A 5Beachten Sie in jedem Fall die folgenden Warn-und Vorsicht-shinweise:• Beachten Sie alle Warn- und Vorsichtsh
6 Cheetah 4LP Installation Guide, Rev. A• Die vormontierte Kopf- und Festplatteneinheit (HDA) nicht ausdem Laufwerkgehäuse nehmen! Falls die HDA besch
Cheetah 4LP Installation Guide, Rev. A 7tromagnetische Strahlung sind für Designer von Untersystemenauf Anfrage von der Seagate-Sicherheitsabteilung e
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