Seagate ST43402ND user manual Connecting the system I/O cabling, ST43401N/ND drives

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

33

Connecting the system I/O cabling

Make sure the site has been prepared in accordance with the site require- ments information provided earlier in this section. This procedure describes how to cable the system in a daisy-chain configuration, which was discussed earlier in this section in “Interface requirements.”

ST43401N/ND drives

The drive has one I/O connector on the control board. Figure 15 shows how a typical I/O cable connects to the board.

If the drive is either the first or last device (at either end) in the daisy chain, it must be terminated. Drives in the middle of the daisy chain must not be terminated. Drives that are terminated have three terminator resistor-paks installed as shown in Figures 17 (ST43401N) and 18 (ST43401ND).

I/O

Connector

Pin 1

Daisychain

I/O Cable

Figure 15. ST43401N/ND I/O cable attachment

Image 43

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 Environmental requirements Site requirementsUmgebungsbedingungen 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 Setting the voltage range Installing a power supplyMounting the power supply 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 MaintenanceRemoving and replacing a drive Arranging for depot repairPacking a drive for shipment