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Manual Seagate ST43401N/ND

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  • Seagate ST43401N/ND - page 1

    Elite Disc Drive ST43401N/ND ST43402ND User ’ s Manual ...

  • Seagate ST43401N/ND - page 2

    © 1994 Seagate Technology, Inc. All rights reserved Publication number: 83327720, Rev. B December 1994 Seagate ® , Seagate Technology ® , and the Seagate logo are registered trademarks of Seagate Technology, Inc. Elite™, SeaFAX™, SeaFONE™, SeaTDD™, and SeaBOARD™ are trademarks of Seagate Technology, Inc. Other product names are registe ...

  • Seagate ST43401N/ND - page 3

    ST43401N/ND, ST43402ND User’s Manual, Rev. B iii Preface This manual contains information for users of Seagate ® ST43401N/ND and ST43402ND Elite™ disc drives. It provides instructions to all personnel who operate the drive and to customer engineers who install and check out the drive. Additional information is available in the reference manual ...

  • Seagate ST43401N/ND - page 4

    iv ST43401N/ND, ST43402ND User’s Manual, Rev. B Important safety information and precautions Caution. Use forced-air ventilation when bench-testing the drive to ensure proper cooling of drive components. Use proper safety and repair techniques for safe, reliable operation of this unit. Service should be done only by qualified persons. We recommen ...

  • Seagate ST43401N/ND - page 5

    ST43401N/ND and ST43402ND User’s Manual, Rev. B v • Do not remove any circuit boards from the drive chassis. Return the entire drive for depot repair if any circuit board is defective. Removal of circuit boards by personnel not performing depot repair will damage components and may void the warranty. • Do not remove the head and disc assembly ...

  • Seagate ST43401N/ND - page 6

    vi ST43401N/ND, ST43402ND User’s Manual, Rev. B Wichtige Sicherheitshinweise Vorsicht. Beim Testen des Laufwerks auf dem Prüftisch ist Fremdbelüftung vorzusehen, um eine ausreichende Kühlung der Laufwerkkomponenten sicherzustellen. Verwenden Sie geeignete Sicherheits- und Reparaturverfahren, um den sicheren, zuverlässigen Betrieb dieser Einhe ...

  • Seagate ST43401N/ND - page 7

    ST43401N/ND, ST43402ND User’s Manual, Rev. B vii • Tragen Sie Sicherheitsschuhe, wenn Sie schwere Teile aus- bzw. einbauen. • Wenn das Laufwerk in einem Einbaugestell oder Gehäuse montiert ist, sorgen Sie dafür, daß die Temperatur im Inneren des Gestells oder Gehäuses die für das Laufwerk vorgegebenen Grenzwerte nicht übersteigt. Wenn E ...

  • Seagate ST43401N/ND - page 8

    viii ST43401N/ND, ST43402ND User’s Manual, Rev. B Dieses Gerät ist eine Baugruppe und unterliegt als solche nicht den Anforderungen der FCC oder ähnlicher nationaler Behörden für eigenständige. Technische Testergebnisse zu Frequenz- und Elektrizitätsemissionen sind für Designer von Untersystemen auf Anfrage von der Seagate- Sicherheitsabte ...

  • Seagate ST43401N/ND - page 9

    ST43401N/ND, ST43402ND User’s Manual, Rev. B ix Technical support services Seagate Technology provides technical support literature and diagnostic utilities to authorized distributors. Please contact your dealer for technical support and installation troubleshooting. Product technical support is avail- able for all Seagate products by calling the ...

  • Seagate ST43401N/ND - page 10

    x ST43401N/ND, ST43402ND User’s Manual, Rev. B Telephone Location number USA, Mexico, Latin America (408) 438-8771 England 44-62-847-8011 Germany 49-89-140-9331 Singapore 65-292-6973 Australia 61-2-756-2359 Canada (416) 856-5581 France 33-1-40-67-1034 Korea 82-2-556-7294 ...

  • Seagate ST43401N/ND - page 11

    Control Board Power Board Optional Bezel Chassis DC Power Connector Option Jumpers and Spindle Sync Connector Option Jumpers I/O Connector Option Jumpers Option Jumpers Head and Disc Assembly (HDA) Pin 1 ST43401N/ND, ST43402ND User’s Manual, Rev. B 1 Section 1. General description Seagate ST43401N/ND and ST43402ND ...

  • Seagate ST43401N/ND - page 12

    2 ST43401N/ND, ST43402ND User’s Manual, Rev. B Control Board Chassis Head and Disc Assembly (HDA) Power Board DC Power Connector Option Jumpers Pin 1 I/O Board Optional Bezel Spindle Sync Connector Remote Operator Panel Connector Port B I/O Connector Port A I/O Connector Port A Terminator Power Port B Ter ...

  • Seagate ST43401N/ND - page 13

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 3 Table 1. Drive specifications Characteristics Conditions Specifications Size Dimensions See “Space requirements” in Section 2 Weight (drive only) 3.6 kg (8.0 lb) Interface Fast and wide (16-bit) SCSI-2 Recording Total capacity (unformatted) 3,554,871,600 bytes Bytes per track (unformatted) Inner ...

  • Seagate ST43401N/ND - page 14

    4 ST43401N/ND, ST43402ND User’s Manual, Rev. B continued from previous page Characteristics Conditions Specifications SCSI transfer rate, burst 20.0 Mbytes/sec max Seek time (time required Typical full 23.5 msec to move heads to a different Typical average 11.5 msec track address—excluding Typical one-track 1.7 msec SCSI I/O overhead) Typical a ...

  • Seagate ST43401N/ND - page 15

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 5 The drive contains all the circuits and mechanical devices necessary to record data on and recover it from its discs. The drive requires DC voltage inputs from an external power supply, which you must supply. The DC power cable is available as an accessory. The ST43401N/ND drives consist of a head an ...

  • Seagate ST43401N/ND - page 16

    6 ST43401N/ND, ST43402ND User’s Manual, Rev. B When the drive is not powered on, the heads rest on the disc surface in a preassigned landing zone beyond the data zone. The actuator automatically latches in this position at shutdown for moving or shipping protection. When the drive is activated to bring the discs up to speed, the heads fly on a cu ...

  • Seagate ST43401N/ND - page 17

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 7 Section 2. Installation/Abschnitt 2. Installation The information contained in this section describes installation and initial checkout of the drive. Site requirements The site requirements considered are environment, airflow, space, power, grounding, and interface. Voraussetzungen am Aufstellungsort ...

  • Seagate ST43401N/ND - page 18

    8 ST43401N/ND, ST43402ND User’s Manual, Rev. B Table 2. Environmental requirements Conditions Specifications Operating environment Temperature Range of 5°C to 50°C (41°F to 122°F) with a maximum change of 20°C (36°F) per hour Humidity Range of 5% to 95% relative A maximum wet bulb temperature of 26°C (79°F) Barometric pressure – 305 m t ...

  • Seagate ST43401N/ND - page 19

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 9 Tabelle 2. Umgebungsbedingungen des Laufwerkes Bedingungen Technische Daten Betriebsumgebung Temperatur 5°C bis 50°C mit einer maximalen Schwankung von 20°C pro Stunde Relative Luftfeuchtigkeit 5% bis 95% Maximale Naßthermometertemperatur von 26°C Luftdruck – 305 m bis 3.048 m; 104 kPa bis 69 ...

  • Seagate ST43401N/ND - page 20

    10 ST43401N/ND, ST43402ND User’s Manual, Rev. B Air-flow requirements The enclosure design must ensure adequate cooling for the drive. Note that the fan in the power supply cools only the power supply’s internal parts. The drive’s product specification (document 64403603) describes how to evaluate the air-flow design. The evaluation consists ...

  • Seagate ST43401N/ND - page 21

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 11 Above unit Under unit Note. Air flows in the direction shown (front to back) or in reverse direction (back to front) Above unit Under unit Note. Air flows in the direction shown or in reverse direction (side to side) Figure 4. Suggested air flow/Empfohlener Luftstromverlauf ...

  • Seagate ST43401N/ND - page 22

    12 ST43401N/ND, ST43402ND User’s Manual, Rev. B Space requirements The drive is designed to be mounted in one of the three orientations shown in Figure 5. The drive may be mounted on its base or on either side. The physical dimensions of the drive are shown in Figure 6. The drive weighs 3.6 kg (8.0 lb). For details about designing an enclosure to ...

  • Seagate ST43401N/ND - page 23

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 13 Up Up Up Figure 5. Mounting orientations/ Montageorientierungen ...

  • Seagate ST43401N/ND - page 24

    14 ST43401N/ND, ST43402ND User’s Manual, Rev. B 203.20 mm 8.00 in max 82.55 mm 3.25 in 149.35 mm 5.88 in Figure 6. Dimensions of the drive/ Laufwerkabmessungen ...

  • Seagate ST43401N/ND - page 25

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 15 Power requirements The voltage and current requirements for a single drive at cylinder 0 are shown in Table 3. Ensure that your power supply meets these requirements. Table 3. Single drive voltage and current requirements Current without Internal Current with Internal Terminator Terminator Seeking C ...

  • Seagate ST43401N/ND - page 26

    16 ST43401N/ND, ST43402ND User’s Manual, Rev. B continued from previous page Without Internal With Internal Terminator Terminator Maximum Current Limits +5V 5,7 +12V 5,7 +5V 5,7 +12V 5,7 Amps Amps Regulation ± 5% 3,4,8,9 SCSI single-ended interface (ST43401N) Maximum operating current 1,2,6 1.9 1.8 2.3 1.8 Average idle current 1 1.8 1.8 1.9 1.8 ...

  • Seagate ST43401N/ND - page 27

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 17 Grounding requirements A safety ground must be provided by the site AC power system. The green wire (or green wire with yellow stripe) in the AC power cord provides the safety ground connection between the power supply and the site AC power system. The site AC power system must provide the safety gr ...

  • Seagate ST43401N/ND - page 28

    18 ST43401N/ND, ST43402ND User’s Manual, Rev. B A connector (J6) at the back of the drive accepts the I/O cable that connects it to the system. The daisy-chain cable is a continuous unshielded cable having one connector for each drive it connects to. Refer to the reference manual (publication 83327730) for guidelines on I/O cabling. These guideli ...

  • Seagate ST43401N/ND - page 29

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 19 Table 4. Unshielded single-ended I/O cabling (P cable) Even pin Odd in Signal name numbers Signal name numbers DB– (12) 2 GROUND 1 DB– (13) 4 GROUND 3 DB– (14) 6 GROUND 5 DB– (15) 8 GROUND 7 DB– (P1) 10 GROUND 9 DB– (0) 12 GROUND 11 DB– (1) 14 GROUND 13 DB– (2) 16 GROUND 15 DB– (3) ...

  • Seagate ST43401N/ND - page 30

    Table 5. Unshielded differential I/O cabling (P cable) Even pin Odd pin Signal name numbers Signal name numbers DB– (12) 2 DB (12) 1 DB– (13) 4 DB (13) 3 DB– (14) 6 DB (14) 5 DB– (15) 8 DB (15) 7 DB– (P1) 10 DB (P1) 9 GROUND 12 GROUND 11 DB– (0) 14 DB (0) 13 DB– (1) 16 DB (1) 15 DB– (2) 18 DB (2) 17 DB– (3) 20 DB (3) 19 DB– (4) ...

  • Seagate ST43401N/ND - page 31

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 21 continued from previous page Even pin Odd pin Signal name numbers Signal name numbers GROUND 60 GROUND 59 DB– (8) 62 DB (8) 61 DB– (9) 64 DB (9) 63 DB– (10) 66 DB (10) 65 DB– (11) 68 DB (11) 67 Notes: 1. A minus sign indicates active low. 2. Eight-bit devices connected to the P cable must le ...

  • Seagate ST43401N/ND - page 32

    22 ST43401N/ND, ST43402ND User’s Manual, Rev. B Unpacking, inspection, and repacking After removing the packing material, inspect the drive for shipping damage. Save all packing materials for future use. The drive is shipped separately from any other items ordered for the installation. Unpacking 1. Allow the drive temperature to approach the ambi ...

  • Seagate ST43401N/ND - page 33

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 23 Installation procedures With the site requirements completed, the enclosure designed, and the drive unpacked you are ready to begin the installation. The following procedures are included in drive installation: • Setting the circuit board jumpers • Installing a power supply • Attaching an opti ...

  • Seagate ST43401N/ND - page 34

    24 ST43401N/ND, ST43402ND User’s Manual, Rev. B Figure 8. ST43401N/ND control board jumpers Pin 1 Pin 1 Pin 1 Terminator Resistor-Paks (3) (must be installed if drive is at either end of the daisychain) 1 2 3 4 Terminator Power Source Jumper Assign the terminal power jumpers as shown below. 2 1 4 3 J01 Internal terminator power source. Exte ...

  • Seagate ST43401N/ND - page 35

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 25 Not used Not used Not used Write Protect/Enable (WRT) Slave Select (SLV) J4A Write Protect/Enable (WRT) N/A N/A N/A WRT Write protect (disable writing) Write enable (enable writing) Slave Select (SLV) Master (master for spindle sync) Slave (slave drive unless  selected as the master b ...

  • Seagate ST43401N/ND - page 36

    26 ST43401N/ND, ST43402ND User’s Manual, Rev. B Port A SCSI ID Port A SCSI ID = 0 GND A3 A1 A2 A0 SBS B3 B1 B2 B0 Port A SCSI ID = 1 Port A SCSI ID = 2 Port A SCSI ID = 3 Port A SCSI ID = 4 Port A SCSI ID = 5 Port A SCSI ID = 6 Port A SCSI ID = 7 Port A SCSI ID = 8 Port A SCSI ID = 9 Port A SCSI ID = A Port A SCSI ID = B Port A SCSI ID = C Port A ...

  • Seagate ST43401N/ND - page 37

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 27 Manual Reset (MR) RL SDO L6 FL Ground this pin to manually reset the SCSI board.  Remove ground after reset. NA L4 PB WPL PA ST ID0 SBS PSS ID3 MR ID2 WRT ID1 Write Protect/Enable (WPL) Write protect (disable writing) Write enable (enable writing) Panel Start/Stop (PSS) Start spindle after the SC ...

  • Seagate ST43401N/ND - page 38

    28 ST43401N/ND, ST43402ND User’s Manual, Rev. B Enable/Disable Port A Enable Port A Disable Port A Enable/Disable Port B Enable Port B Disable Port B Enable Port A and Port B Simultaneously Use jumpers to connect the four  pins as illustrated. = Jumper  connected = Jumper not  connected = Non-applicable jumper  (not relevant to the ...

  • Seagate ST43401N/ND - page 39

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 29 Installing a power supply A power supply is required to provide current to the disc drive. Several vendors offer power supplies that meet the disc drive’s power requirements. Ensure that the power supply you select meets these requirements as specified in Table 3. Setting the voltage range Caution ...

  • Seagate ST43401N/ND - page 40

    30 ST43401N/ND, ST43402ND User’s Manual, Rev. B Attaching an optional bezel Use the following procedure to attach an optional bezel to the drive. The bezel is available as an accessory (see Section 4). 1. Remove the backing from the double-sticky tape attached to the rear surface of the bezel. 2. Orient the drive and bezel as shown in Figure 13. ...

  • Seagate ST43401N/ND - page 41

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 31 Mounting the drive Caution. When installing the drive, observe all precautions listed under “Electrostatic discharge protection” in the preface. Failure to ob- serve these precautions can result in serious damage to electronic assemblies. The drive may be secured to the enclosure using the tappe ...

  • Seagate ST43401N/ND - page 42

    32 ST43401N/ND, ST43402ND User’s Manual, Rev. B 6-32 Bottom-Mounting Screws (4) DC Power Connector J15 Pin 1 DC Power Cable M4 x .70 (metric) M4 x .70 (metric) 6-32 Screw 6-32 Screw Side-Mounting Screws (2 on each side) Note: Either side- or bottom-mounting screws can be used with each drive orientation 1 1 1 2 ...

  • Seagate ST43401N/ND - page 43

    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 ...

  • Seagate ST43401N/ND - page 44

    34 ST43401N/ND, ST43402ND User’s Manual, Rev. B ST43402ND drives ST43402ND drives have two I/O connectors as shown in Figure 16. Both of these I/O connectors (one for Port A and the other for Port B) are located on the I/O board. Figure 16 shows how typical I/O cables connect to the I/O board. You must use an adapter (part number 70935801) to ter ...

  • Seagate ST43401N/ND - page 45

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 35 Figure 17 shows how the terminator resistor-paks are attached on ST43401N drives (single-ended I/O). The terminator resistor-paks, which are single inline packages, mount in the rows of holes located in the control board. Ensure that they are installed with the correct orientation (indicated by a do ...

  • Seagate ST43401N/ND - page 46

    36 ST43401N/ND, ST43402ND User’s Manual, Rev. B Figure 18 shows how the terminator resistor-paks are attached on ST43401ND drives (differential I/O). These terminator resistor-paks, which are dual inline packages, mount in sockets in the control board. These terminators are also marked with a dot above pin 1. If the drive is located at either end ...

  • Seagate ST43401N/ND - page 47

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 37 Grounding the system Grounding the system through the power cables and I/O cables is usually sufficient to protect against noise and emissions. Synchronizing the spindle The spindle sync feature makes it possible to synchronize the spindle rotation of a group of disc drives. This reduces the latency ...

  • Seagate ST43401N/ND - page 48

    38 ST43401N/ND, ST43402ND User’s Manual, Rev. B To enable the feature, it is necessary to run an additional daisy-chain cable from drive to drive and to make a master/slave selection for each drive. Connector J7 is used by ST43401N/ND drives. Connector J5 on the control board handles the cable connections on ST43402ND drives. Master/slave selecti ...

  • Seagate ST43401N/ND - page 49

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 39 Pin 1 B J5 J4A A Cable from Preceding Unit Cable to Next Unit Control Board Select Plug (removed = master) Slave Select Figure 21. Making ST43402ND spindle sync connections ...

  • Seagate ST43401N/ND - page 50

    40 ST43401N/ND, ST43402ND User’s Manual, Rev. B For each drive in the middle of the daisy chain, the cable from the preceding unit connects to one row of pins in (row A or row B), and the cable to the next unit connects to the other row of pins. There are two ways to establish a drive as a master (supplying the sync reference signal to all drives ...

  • Seagate ST43401N/ND - page 51

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 41 Verification After installing the drive, follow the sequence outlined below for initial startup. 1 . Place the on/standby switch in the on ( l ) position. What follows depends on the setting of the Start Command option and the Spinup Delay option jumpers. • If the Start Command option jumper was c ...

  • Seagate ST43401N/ND - page 52

    ...

  • Seagate ST43401N/ND - page 53

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 43 Section 3. Operation This section provides the information and instructions to operate the drive. It is arranged as follows: • LED indicators—locates and describes the switches and indicators used for normal drive operation. • Operating instructions—describes procedures for operating the dri ...

  • Seagate ST43401N/ND - page 54

    44 ST43401N/ND, ST43402ND User’s Manual, Rev. B  Socket for Active LED (red) Heartbeat LED (green) Active LED (on optional bezel) Ready LED (green) Control Board Figure 22. LEDs on ST43401N/ND drives ...

  • Seagate ST43401N/ND - page 55

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 45 Table 6. LED functions for ST43401N/ND drives LED indicator Function Drive control board Ready LED This LED flashes during the power-on sequence until (green) the discs are up to speed and the heads are loaded. It is on steady with power-on complete, assuming that there are no fault conditions. It f ...

  • Seagate ST43401N/ND - page 56

    46 ST43401N/ND, ST43402ND User’s Manual, Rev. B Control Board Optional Bezel  Socket for Active LED (red) Heartbeat LED (green) Ready LED (green) Port A Enabled LED (green) Port B Active LED (red) Port B Enabled LED (green) Figure 23. LEDs on ST43402ND drives ...

  • Seagate ST43401N/ND - page 57

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 47 Table 7. LED functions for ST43402ND drives LED indicator Function Drive control board Ready LED This LED flashes during the power-on sequence until (green) the discs are up to speed and the heads are loaded. It is on steady with power-on complete, assuming that there are no fault conditions. It fla ...

  • Seagate ST43401N/ND - page 58

    48 ST43401N/ND, ST43402ND User’s Manual, Rev. B continued from previous page LED or indicator Function SCSI I/O board SCSI port A enabled This LED is on steady when port A is enabled to (green) receive SCSI commands and to transfer data on this port. SCSI port B enabled This LED is on steady when port B is enabled to (green) receive SCSI commands ...

  • Seagate ST43401N/ND - page 59

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 49 Section 4. Parts data This section lists part numbers of options and accessories that can be used in a drive installation. Because the drive is depot repairable, there are no field- replaceable parts. If the drive requires maintenance, refer to the instructions in Section 5. Table 8 lists the part n ...

  • Seagate ST43401N/ND - page 60

    50 ST43401N/ND, ST43402ND User’s Manual, Rev. B Table 8. Options and accessories Part number Description 12263496 Static ground wrist strap, 6 1/2 to 8-inch wrist ** I/O cables (unshielded) ** External terminators 96752447 Terminator resistor-pak, single-ended 70906701 Terminator resistor-pak, differential 70935801 Terminator adapter cable assemb ...

  • Seagate ST43401N/ND - page 61

    ST43401N/ND, ST43402ND User’s Manual, Rev. B 51 Section 5. Maintenance This section contains the following maintenance information: • Observing maintenance precautions • Arranging for depot repair • Removing and replacing a drive • Packing a drive for shipment Observing maintenance precautions Because the drive is depot repairable, there ...

  • Seagate ST43401N/ND - page 62

    52 ST43401N/ND, ST43402ND User’s Manual, Rev. B Arranging for depot repair Before returning any units to Seagate, it is necessary to obtain a returned material authorization (RMA) number. To get the number, you will need to know the part number and serial number of the unit. These numbers appear on a label located on the side of the HDA. Then con ...

  • Seagate ST43401N/ND - page 63

    ...

  • Seagate ST43401N/ND - page 64

    Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 83327720, Rev. B, Printed in USA ...

Manufacturer Seagate Category Computer Drive

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All of them are important, but the most important information from the point of view of use of the device are in the user manual Seagate ST43401N/ND.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Seagate ST43401N/ND, service manual, brief instructions and user manuals Seagate ST43401N/ND. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Seagate ST43401N/ND.

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