Seagate ST410800W/WD, ST410800N/ND manual Terminating the drive, Terminating the ends of a Scsi bus

Page 23

Elite 9 Installation Guide, Rev. B

21

Terminating the drive

If you are installing the drive in a system that has other SCSI devices installed, terminate only the end devices on the SCSI chain. A SCSI “device” is any disc drive, scanner, tape backup unit, or other piece of hardware connected to your system using the SCSI bus.

The top example in Figure 3 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 connected exter- nally—this means the SCSI controller is no longer on the end of the SCSI chain and should not be terminated.

Internal SCSI cable

 

 

 

 

 

 

 

 

Internal

 

Internal

 

Controller

SCSI device

 

SCSI device

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminate

Internal SCSI cable

 

 

 

 

 

 

 

 

Internal

 

Internal

 

Controller

SCSI device

 

SCSI device

 

 

 

 

 

 

 

 

 

 

 

 

 

External

SCSI cable

External

SCSI device

External

SCSI device

Terminate

Figure 3. Terminating the ends of a SCSI bus

Image 23
Contents Elite 9 Disc Drive ST410800N/ND ST410800W/WD Contents Electrostatic discharge protection PrefaceImportant safety information and precautions Page Elite 9 Installation Guide, Rev. B Wichtige Sicherheitshinweise Elite 9 Installation Guide, Rev. B Page Elite 9 Installation Guide, Rev. B Page SeaTDD 408 SeaFAX USA 408 438-2620 EnglandSeaFONE 408 Location Number SeaBOARDTelephone General description Elite 9 family disc drive ST410800N shown RPM Characteristics of ST410800 drivesAmps DC power requirements for ST410800N/ND drivesDC power requirements for ST410800W/WD drives Elite 9 Installation Guide, Rev. B Initial setup information Setting the Scsi ID jumpers Setting the Scsi ID Terminating the ends of a Scsi bus Terminating the driveST410800N/W termination ST410800ND/WD terminator locations J01 2 Changing other applicable jumper optionsAdditional jumper options Spindle sync jumpers and connectors ST410800N shown Synchronizing spindles Multiple drive configurationsSpindle sync diagram Providing adequate cooling Kühlung des Systems Elite 9 Installation Guide, Rev. B Mounting the drive and connecting cables Installation des Laufwerkes und Anschluß der Kabel Dimensions Abbildung 11. Laufwerkabmessungen Elite 9 Installation Guide, Rev. B DC power connector Abbildung 12. Gleichstromanschluß Hinweis Formatting the drive Elite 9 Installation Guide, Rev. B