Seagate ST118202LW/LC manual Setting terminator power jumpers

Page 43

Cheetah 18 Installation Guide, Rev. A

41

LW drives

Terminator power

You can configure this drive to supply termination power to the SCSI bus by placing a jumper on J2 pins 1 and 2. The default setting is no jumper, meaning that some other source (other than this drive) is suppling termination power to the SCSI bus.

J2

R R

T D MW P E E T

E S E P D S S P

Pin 1 Pin 2

Term. Power to SCSI Bus

Host adapter or other device provides term power to external terminator

J2 Jumper Plug

(enlarged to show detail)

J2

J6

Drive

Front

Figure 12. Setting terminator power jumpers

Image 43

Contents Cheetah Disc Drive ST118202LW/LC Installation Guide Contents Electrostatic discharge protection PrefaceImportant safety information and precautions Page Wichtige Sicherheitshinweise Page Cheetah 18 Installation Guide, Rev. a Electromagnetic susceptibility Regulatory agency complianceElectromagnetic compliance for the European Union Seagate Technology support services SeaNET Seagate CompuServe forum Online servicesSeaFAX FAX servicesTechnical support Direct-support servicesCustomer service centers Manufacturer’s representatives General description Cheetah 18 family drive ST118202LW shown Characteristics ST118202LW/LC DC power requirements ±5%1 +5 +12 General information Drive modelsScsi ID jumpers Single-ended and low voltage differential modesPage Drive termination Circuits and data path widths Terminator powerCable characteristics for SE and LVD circuits Pin I/O connection to drive LW model Multiple-drive connection to host adapter Drive model LC with single 80-pin I/O and power connector Providing adequate cooling Kühlung des Systems Suggested air flow Installation des Laufwerkes und Anschluß der Kabel Mounting the drive and connecting cablesCheetah 18 Installation Guide, Rev. a DC power connector Abbildung 8. Gleichstromanschluß Hinweis Page Mounting configuration dimensions LW model Mounting configuration dimensions LC model Quick reference desktop system notes Formatting the driveLW drives Setting the Scsi ID jumpersTerminating the drive Setting terminator power jumpers Several other jumper options are available as illustrated Other applicable jumper optionsAdditional jumper options Drive Active LED indicator connections are shown below Drive Active indicatorLC drives Terminating the drive Other option jumpers are available as illustrated below Drive Active indicator