Seagate ST43401N/ND, ST43402ND user manual General description

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ST43401N/ND, ST43402ND User’s Manual, Rev. B

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Section 1. General description

Seagate ST43401N/ND and ST43402ND Elite 3 disc drives are high speed, random access digital data storage devices. They communicate with an initiator using the fast and wide (16-bit) Small Computer System Interface (SCSI-2). The ST43401N/ND disc drive is shown in Figure 1, and the ST43402ND (dual port) disc drive is shown in Figure 2. Specifications for these drives are listed in Table 1 following the figures.

The drive is a component for installation in an enclosure designed for the drive. The enclosure design must ensure adequate cooling for the drive, and it must address the requirements for grounding and for shielding of emissions. The reference manual (publication 83327730) presents guidelines for a properly designed enclosure.

Control

Board

Option Jumpers and

Spindle Sync

Connector

Option

Jumpers

Option

Jumpers

Option

Jumpers

Pin 1

I/O

Connector

Head and Disc

Assembly (HDA)

DC Power

Connector

Figure 1. ST43401N/ND disc drives

Power

Board

Optional

Bezel

Chassis

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Contents Elite Disc Drive ST43401N/ND ST43402ND Contents Electrostatic discharge protection PrefaceImportant safety information and precautions Page Wichtige Sicherheitshinweise Page Page SeaTDD 408 Technical support servicesSeaFAX USA 408 438-2620 England SeaFONE 408Location Number TelephoneGeneral description ST43402ND disc drive ST43401N/ND, ST43402ND User’s Manual, Rev. B Write Read Msec Characteristics Conditions SpecificationsPage Drive functional block diagram Umgebungsbedingungen Site requirementsEnvironmental requirements Environmental requirements Conditions Specifications ST43401N/ND, ST43402ND User’s Manual, Rev. B Air-flow requirements Suggested air flow/Empfohlener Luftstromverlauf Räumliche Anforderungen Space requirementsMounting orientations Montageorientierungen Dimensions of the drive Laufwerkabmessungen Power requirements ST43401N/ND, ST43402ND User’s Manual, Rev. B Interface requirements Grounding requirementsST43401N/ND, ST43402ND User’s Manual, Rev. B Ground Ground Diffsens Termpwr Reserved ATN BSY ACK RST MSG SEL REQ Even pin Odd pin Signal name Numbers Repacking Unpacking, inspection, and repackingUnpacking InspectionSetting the control board jumpers Installation proceduresJ4B J4A ST43402ND I/O board J09 jumpers ST43402ND I/O board J10 jumpers ST43402ND I/O board J01 and J03 jumpers Mounting the power supply Installing a power supplySetting the voltage range Attaching a bezel ST43401N/ND shown Attaching an optional bezelMounting the drive Mounting the drive ST43401N/ND shown ST43401N/ND drives Connecting the system I/O cablingST43402ND I/O cable attachment ST43402ND drivesST43401N terminator attachment-single-ended I/O ST43401ND terminator attachment-differential I/O Synchronizing the spindle Grounding the systemJ4A J4A ST43401N/ND, ST43402ND User’s Manual, Rev. B Verification Page Operation LED indicatorsLEDs on ST43401N/ND drives LED indicator Function LEDs on ST43402ND drives When it is off, the drive does not have a Scsi Operating instructions LED or indicator FunctionParts data Options and accessories Part Number Description Observing maintenance precautions MaintenancePacking a drive for shipment Arranging for depot repairRemoving and replacing a drive