Seagate ST43400N/ND user manual Switches and indicators

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Socket for Active LED (red)

Heartbeat LED (green)

Ready LED (green)

Control

Board

Drive

Power

Supply

On / Standby Switch	Standby =
	On =	I

Note. Differential unit shown.

Active LED (on optional bezel)

Figure 16: Switches and indicators

Image 39

Contents Elite Disc Drive ST43400N/ND Contents Electrostatic discharge protection PrefaceImportant safety information and precautions ST43400N/ND User’s Manual SeaBOARD Technical support servicesSeaFAX 408 SeaFONE 408ST43400N/ND disc drive General descriptionSize Dimensions Characteristics Conditions Specifications Page Drive functional block diagram Installation Site requirementsEnvironmental requirements Airflow requirements Suggested airflow Mounting orientations Space requirementsDimensions of the drive and power supply Power requirements Interface requirements Grounding requirementsScsi Unshielded single-ended I/O cabling Signal Name Pin Number Unshielded differential I/O cabling Signal Name Pin Number Repacking Unpacking, inspection, and repackingUnpacking InspectionSetting the control board jumpers Installation proceduresJ4A Installing the power supply Power supply installation Installing an optional bezel Attaching a bezel Mounting the drive Mounting the drive O cable attachment Connecting the system I/O cablingTerminator attachment-single-ended I/O Terminator attachment-differential I/O Grounding the systemSynchronizing the spindle System diagram for spindle syncJ4A Installation Verification Operation Switches and indicatorsSwitches and indicators Switch or Indicator Function Operating instructions Parts data Options and accessories Part Number Description Observing maintenance precautions MaintenanceRemoving and replacing a drive Arranging for depot repairPacking a drive for shipment Removing and replacing a power supplyPage Maintenance Publication Number 83327630, Rev. a