Seagate ST36530N/W/WC, ST39140N/W/WC/LW/LC, ST34520N/W/WC/LW/LC Electrostatic discharge protection

Page 4

2

Medalist Pro Installation Guide, Rev. B

Electrostatic discharge protection

Caution. Removal of circuit boards by personnel not perform- ing depot repair will damage components and 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 metal-oxide semi- conductors are extremely sensitive, all semiconductors, as well as some resistors and capacitors, may be damaged or degraded by exposure to static electricity.

Electrostatic damage to electronic devices may be caused by the direct discharge of a charged conductor or by exposure to the static fields surrounding charged objects. To avoid damaging drive electronic assemblies, observe the following precautions when installing or servicing the drive:

Ground yourself to the drive whenever the drive electronics are or will be exposed. Connect yourself to ground with a wrist strap (Seagate part number 12263496). Connection may be made to any grounded metal assembly. As a general rule, remember that you and the drive electronics must all be grounded to avoid potentially damaging static discharges.

Turn off the power before removing or installing the DC power cable.

Do not remove any circuit boards from the drive.

Never use an ohmmeter on any circuit boards.

When installing the drive on a carrier or tray, discharge the car- rier or tray prior to inserting it into the system.

Image 4
Contents ST39140N/W/WC/LW/LC Contents Handling precautions PrefaceElectrostatic discharge protection Important safety information and precautions Medalist Pro Installation Guide, Rev. B Wichtige Sicherheitshinweise Medalist Pro Installation Guide, Rev. B Page Electromagnetic susceptibility Regulatory agency complianceElectromagnetic compliance Electromagnetic compliance for the European Union Australian C-TickSeagate Technology support services Presales Support Customer Service CSO European Support Services Africa/Middle East Support Services SeaFAX General description Drive characteristics RPMDCX DC power requirements Amps for LW/LC Models ST39140 ST34520Medalist Pro Installation Guide, Rev. B Dimensions of the drive General information Drive modelsScsi ID jumpers Drive termination Terminator power Circuits and data path widthsInterconnect 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 Mounting the drive and connecting cables Installation des Laufwerkes und Anschluß der KabelMedalist Pro Installation Guide, Rev. B DC power connector Abbildung 5. Gleichstromanschluß Hinweis Page Mounting configuration dimensions Formatting the drive Quick reference desktop system notesSetting the Scsi ID jumpers Setting the Scsi ID on model N drivesTerminating the drive Terminating the driveSetting terminator power jumpers Other applicable jumper options Additional 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 Applicable jumper options Jumper optionsLC drives Additional jumper options for LC drives Page