Seagate ST39140N/W/WC/LW/LC, ST36530N/W/WC, ST34520N/W/WC/LW/LC manual Terminating the drive

Page 45

Medalist Pro Installation Guide, Rev. B

43

N drives

Terminating the drive

“N” model drives are terminated with permanently mounted IC active terminators. If you install one of these drives and it is not on the end of the SCSI bus, disable the terminators by removing the jumper “TE” from pins 15 and 16 of connector J2 (see Fig- ure 8). If you install the drive on the end of the SCSI bus, enable termination by installing a jumper on pins 15 and 16 of connector J2.

Pin 1

J2

R

 

T D M W P E T T

 

E S E P D S P P

Enable SCSI terminator

Disable SCSI terminator

(default)

 

J6

J2

 

SCSI I/O J1

 

 

 

 

Connector

 

Drive

 

J2 Jumper Type

Front

 

 

DC Power

(enlarged to

 

 

Connector

show detail)

 

 

 

Figure 8. Terminating the drive

Image 45
Contents ST39140N/W/WC/LW/LC Contents Preface Handling precautionsElectrostatic discharge protection Important safety information and precautions Medalist Pro Installation Guide, Rev. B Wichtige Sicherheitshinweise Medalist Pro Installation Guide, Rev. B Page Regulatory agency compliance Electromagnetic susceptibilityElectromagnetic compliance Australian C-Tick Electromagnetic compliance for the European UnionSeagate Technology support services Presales Support Customer Service CSO European Support Services Africa/Middle East Support Services SeaFAX General description RPM Drive characteristicsDCX Models ST39140 ST34520 DC power requirements Amps for LW/LCMedalist Pro Installation Guide, Rev. B Dimensions of the drive Drive models General informationScsi ID jumpers Drive termination Circuits and data path widths Terminator powerInterconnect characteristics for single-ended I/O circuits Interconnect characteristics for LVD I/O circuits Fifty pin I/O connection to drive Multiple drive connection to host adapter Multiple-drive connection to host adapter Medalist Pro Installation Guide, Rev. B Providing adequate cooling Kühlung des Systems Suggested air flow Abbildung 4. Empfohlener Luftstromverlauf Installation des Laufwerkes und Anschluß der Kabel Mounting the drive and connecting cablesMedalist Pro Installation Guide, Rev. B DC power connector Abbildung 5. Gleichstromanschluß Hinweis Page Mounting configuration dimensions Quick reference desktop system notes Formatting the driveSetting the Scsi ID on model N drives Setting the Scsi ID jumpersTerminating the drive Terminating the driveSetting terminator power jumpers Additional jumper options Other applicable jumper optionsLW drives Host Alternate Enable Scsi terminator Disable Scsi terminator Model only Terminator power Additional jumper options for W/LW drives Additional jumper option for LW drives WC/LC drives Jumper options Applicable jumper optionsLC drives Additional jumper options for LC drives Page