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Barracuda 18LP Installation Guide, Rev. B

LC drives

[1] Jumper position names shown here are not marked on the PCB.

They are shown here for reference only.

Figure 12. Additional jumper options for “LC” drives

S
E

E
S

Pin 1

Jumper Plug

(enlarged to
show detail)

Drive
Front

A SE jumper here forces single-ended
I/O operation.

No jumper allows host to select either
single-ended or LVD operation.

Single-Ended I/O

(default)

[1]

Jumper

Positions

Содержание Barracuda 18LP

Страница 1: ...Barracuda 18LP Disc Drive ST39175LW LC ST318275LW LC Installation Guide...

Страница 2: ...s section 45 1997 1999 Seagate Technology Inc All rights reserved Publication Number 77767527 Rev B May 1999 Seagate Seagate Technology and the Seagate logo are regis tered trademarks of Seagate Techn...

Страница 3: ...may void the warranty All drive electronic assemblies are sensitive to static electricity due to the electrostatically sensitive devices used within the drive circuitry Although some devices such as...

Страница 4: ...his unit The procedures in this manual and labels on the unit contain warnings and cautions that must be carefully read and followed to minimize or eliminate the risk of personal injury The warnings p...

Страница 5: ...erforming depot repair this will damage components and void the warranty As a component this drive is designed to be installed and oper ated in accordance with UL1950 EN60950 CAN CSA C22 2 950 95 and...

Страница 6: ...se Diese Hinweise sind sorgf ltig durchzulesen und zu beachten um das Risiko von Verletzungen auf ein Mindestma zu beschr nken oder ganz zu vermeiden Die Warnhinweise machen auf Situationen oder Prakt...

Страница 7: ...lls oder Geh uses die f r das Laufwerk vorgege benen Grenzwerte nicht bersteigt Wenn Einheiten vertikal bereinander betestigt werden achten Sie besonders auf den oberen Stapelbereich da dort die Tempe...

Страница 8: ...ie Konstruktion von Untersystemen Sicherheitsbe h rden gew hren eine bedingte Zulassung f r Komponenten wie das Barracuda Festplattenlaufwerk vorbehaltlich der endg ltigen Zulasssung im Endprodukt Des...

Страница 9: ...agnetic compliance Seagate uses an independent laboratory to confirm compliance to the directives standard s for CE Marking and C Tick Marking The drive was tested in a representative system for typic...

Страница 10: ...gnetic Compatibility Direc tive 89 336 EEC of 03 May 1989 as amended by Directive 92 31 EEC of 28 April 1992 and Directive 93 68 EEC of 22 July 1993 Australian C Tick If this model has the C Tick Mark...

Страница 11: ...upport email email_disc_support shtml or DiscSupport Seagate com Tape http www seagate com support email email_tape_support shtml or TapeSupport Seagate com SeaBOARD is a computer bulletin board syste...

Страница 12: ...ape products and tape accessories through Seagate Express 24 hours daily by calling 1 800 531 0968 or by faxing your order to 1 972 481 4812 Technical Support If you need help installing your drive co...

Страница 13: ...of purchase Authorized Service Centers If you live outside the US you can contact an Authorized Service Center for service or repair USA Canada Latin America Support Services Presales Support Disc 1 8...

Страница 14: ...n Support Services For European customer support dial the toll free number for your specific country for presales support technical support SeaFAX and warranty repair If your country is not listed her...

Страница 15: ...Middle East Support Services For presales technical support warranty repair and FAX ser vices in Africa and the Middle East dial our European call center at 31 20 316 7222 from 8 30 a m to 5 00 p m Eu...

Страница 16: ...14 Barracuda 18LP Installation Guide Rev B SeaFAX Australia 61 2 9756 5170 Warranty Repair Japan 81 3 5462 2904 FAX 81 3 5462 2979 Asia Pacific and 65 485 3595 FAX 65 488 7503 Australia...

Страница 17: ...the system or an external enclosure designed to house one or more disc drives or other peripheral units In either case the disc drive must receive adequate cooling refer to Providing adequate cooling...

Страница 18: ...rite 7 7 msec Disk rotation RPM 7 200 r min Average latency 4 17 msec Internal transfer rate variable with zone ST39175 137 240 Mbits sec ST318275 137 240 Mbits sec Maximum synchronous SCSI transfer r...

Страница 19: ...he drive is able to accept selection by the host initiator 3 See the 12V current profile in the Barracuda 18LP Product Manual publication number 77767526 4 This condition occurs when the Motor Start o...

Страница 20: ...e is not less than 4 of the maximum operating current shown 2 Use separate ground returns for 5V and 12V supplies 3 Where power is provided to multiple drives from a common supply carefully consider i...

Страница 21: ...r model Drive models Page ST39175LW ST318275LW 40 ST39175LC ST318275LC 45 General information The following general information topics are discussed SCSI ID jumpers Drive termination Terminator power...

Страница 22: ...details about its requirements for proper SCSI device installation Note This drive is a SCAM SCSI Configured Auto Magically compliant drive If the system into which you are installing this drive requ...

Страница 23: ...The top example in Figure 2 shows an internal hard disc at one end of the SCSI bus with the SCSI controller at the other end both are terminated The bottom example shows two additional SCSI devices co...

Страница 24: ...O controller circuit board has the proper I O circuits to communicate with this drive You may have to replace your old controller with a newer one having the proper I O circuits The following paragrap...

Страница 25: ...igure 12 The host device cannot override the SE jumper If DIFFSNS is at nominal ground 0V to 6V all of the bus receivers drivers operate in single ended mode If DIFFSNS is between 7V and 1 9V all bus...

Страница 26: ...0 1142D docu ment It is recommended that the devices be uniformly spaced between terminators with the end devices located as close as possi ble to the terminators 3 Values specified by data rate shall...

Страница 27: ...all be within a stub length of the termination 1 meter 3 Values specified by data rate shall apply even if a slower data rate is negotiated 4 Loads spaced at least 8 inches 20 3 cm apart refer to SCSI...

Страница 28: ...26 Barracuda 18LP Installation Guide Rev B Figure 3a Sixty eight pin connection to LW model drive Power Cable...

Страница 29: ...T10 1142D including host adapter initiator The cable length restriction limits the total number of devices allowed 5 SCSI ID7 has highest arbitration priority For LW models priority is ID7 to ID0 then...

Страница 30: ...Barracuda 18LP Installation Guide Rev B Note This drive model plugs directly into a backplane connec tor and therefore uses no cables Figure 3c Drive model LC with single 80 pin I O and power connect...

Страница 31: ...nts remains within acceptable limits during drive operation We recommend orienting the drive or directing the air flow in a way that creates the least amount of air flow resistance while providing air...

Страница 32: ...rientieren oder den Luft strom so zu lenken da der geringste Luftstromwiderstand erzeugt wird und gleichzeitig ein Luftstrom ber den Platinen und um die Kopf und Festplatteneinheit HDA gegeben ist W h...

Страница 33: ...d air flow Abbildung 4 Empfohlener Luftstromverlauf Note Air flows in the direction shown front to back or in reverse direction back to front Note Air flows in the direction shown or in reverse direct...

Страница 34: ...e drive The maximum length that the screws should extend into the chassis mounting holes is 0 15 inch 3 81 mm measured from the outer surface of the chassis Tighten the screws down evenly Do not over...

Страница 35: ...ll die Schraube nicht in das Gewindeloch forcieren sondern die Schraube herausnehmen und erneut in das Gewindeloch einf hren 2 Verify that all connections between the drive and the host system are cor...

Страница 36: ...edehnt oder gedr ckt werden und es darf den Luftstrom zur K hlung des Systems nicht behindern Das Laufwerk wird ber einen 4 poligen neben dem SCSI Anschlu befestigten Steckverbinder mit Gleichstrom ve...

Страница 37: ...unted the drive is connected directly to the HDA and PCB without electrically isolating shock mounts Maximizing the conductive contact area between HDA ground and system ground may reduce radiated emi...

Страница 38: ...elektrisch isolierende Sto d mpfer direkt an die HDA und PCB angeschlossen Die elektromagnetische Strahlung kann reduziert wer den indem Sie eine m glichst gro e leitende Kontak fl che zwischen der H...

Страница 39: ...of power connector Centerline of pad for Pin 1 of J6 Centerline of pad for Pin 1 of J2 Dimensions indicated are for reference only Dimensions to Pin 1 of each connector are nominal values To pin ends...

Страница 40: ...rning Formatting a drive erases all user data Be sure that you understand this principle before formatting any hard disc drive It is not necessary to format a drive that previously has been used to st...

Страница 41: ...one or No hard drive installed Use FDISK EXE and FORMAT EXE Sys tems that have operating system Windows 95 release 950B or later do not need to partition the drive Macintosh Use a third party drive ut...

Страница 42: ...appropriate pins as shown in the illustration Optional connections to switching circuits in host equipment are provided on J1 auxiliary to set the SCSI ID see Figure 8 Terminating the drive LW model d...

Страница 43: ...n model LW drives SCSI ID 0 default Jumper Plug enlarged to show detail J6 Drive Front Pin 1 Reserved A2A1A0 1 A L E D R E S 3 SCSI ID 1 SCSI ID 2 SCSI ID 3 SCSI ID 4 SCSI ID 5 SCSI ID 6 SCSI ID 7 SCS...

Страница 44: ...1 A2 A3 11 9 7 5 3 1 12 10 8 6 4 2 Host Alternate Usage Plug Pins 1 3 5 and 7 are optional connections to switching circuits in host equipment to establish drive ID Remote Switches For ID selection us...

Страница 45: ...mple if the SCSI ID 2 the drive starts in 24 seconds Delay Motor Start option valid only if the Enable Motor Start jumper is not connected Enable motor start The drive waits for the Start Unit command...

Страница 46: ...erence only Figure 10 Additional jumper option for LW drives A jumper here forces single ended I O operation 2 1 3 No jumper allows host to select either single ended or LVD operation S E D S M E W P...

Страница 47: ...ver the SCSI bus by the host system using connector contacts 39 ID0 40 ID2 79 ID1 and 80 ID3 Users need not install jumpers to select SCSI ID Terminating the drive LC model drives do not have internal...

Страница 48: ...enables writing Write protect On disables writing Write Protect option The host system has complete control over motor start functions Do not install a jumper on these pins Delay Motor Start option T...

Страница 49: ...the SE jumper is not on the SCSI I O can operate in either single ended or low voltage differential LVD mode depending on which mode the host device has selected using the DIFFSNS I O line The SE jum...

Страница 50: ...or reference only Figure 12 Additional jumper options for LC drives S E D S M E W P P D R E S R E S R E S Pin 1 J2 J2 Jumper Plug enlarged to show detail J2 Drive Front J6 A SE jumper here forces sing...

Страница 51: ......

Страница 52: ...Seagate Technology Inc 920 Disc Drive Scotts Valley CA 95066 4544 USA Publication Number 77767527 Rev B Printed in USA...

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