Seagate ST43400N/ND user manual J4A

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To enable the feature, it is necessary to run an additional daisychain cable from drive to drive and to make a master/slave selection for each drive. Connector J5 on the control board handles the cable connections. Master/slave selection is made by a jumper on connector J4A. Figure 15 shows the two connectors.

For a drive at the end of the daisychain, the cable connects to one of the two rows of pins (row A or row B), and a terminator connects to the other row of pins, as shown in Figure 15. Both ends of the cable must be terminated.

 

Pin 4A

J5

Pin 1A

Pin 4B

Cable from

Preceding Unit

Pin 1B

A

B

Cable to

Next Unit

Control

Board

J4A

Master / Slave

Select Plug

(removed = master)

Figure 15. Making spindle sync connections

Image 35
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 Environmental requirements InstallationSite 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