
I M P U L S E   2 1 0   S C S I    PLUS DEVELOP.
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders    1156|     |     |
Capacity form/unform   210/      MB        Heads           7|     |     |
Seek time   / track  15.0/ 4.0 ms          Sector/track     |     |     |
Controller           SCSI2 SINGLE-ENDED    Precompensation
Cache/Buffer            64 KB LOOK-AHEAD   Landing Zone
Data transfer rate    1.350 MB/S int       Bytes/Sector      512
                      4.000 MB/S ext SYNC
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         4 50    |    -40 65
Power: sleep              W     Humidity     %         8 85    |      5 95
       standby            W     Altitude    km    -0.061  3.048| -0.061 12.192
       idle          11.4 W     Shock        g        10       |     60
       seek               W     Rotation   RPM      3605
       read/write         W     Acoustic   dBA        40
       spin-up            W     ECC        Bit   48
                                MTBF         h      50000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,FCC,SDA,TUV,UL478,VDE    

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QUANTUM  PRODRIVE 120/170/210S  PRODUCT MANUAL 1990

  +----------------------------------------------------------+
  |                                 ++      A2 A1 A0         |
  |                                 |+-+-+-++-+-+-+    RP12++|XX
  |                                 ++-+-+-++-+-+-+        |||XX
  |                                  SS EP WS              |||XX
  |                                                        ++|XX
  |                                                    RP11++|XX SCSI
  |                                             Terminators|||XX J1
  |                                                        |||.X
  |                                                        ++|XX
  |                                                    RP10++|XX
  |                                                        |||XX
  |                                                        |||XX
  |                                                        ++|XX
  |                                                          |XX
  |                                                          |
  |                                                          |XX
  |                                                          |XX J3
  +----------------------------------------------------------+



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                      J   U   M   P   E   R   S
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QUANTUM  PRODRIVE 120/170/210S  PRODUCT MANUAL 1990

 Jumper Setting
 ==============

 x = Jumper set at factory


 Jumper Options
 --------------
  +---------+-----------+-------------------------------------------+
  | Jumper  | Setting   | Description                               |
  +---------+-----------+-------------------------------------------+
  |   SS    | OPEN   x  | Self-seek test disabled                   |
  |         | CLOSED    | Self-seek test enabled                    |
  +---------+-----------+-------------------------------------------+
  |   EP    | CLOSED x  | Parity checking enabled                   |
  |         | OPEN      | Parity checking disabled                  |
  +---------+-----------+-------------------------------------------+
  |   WS    | OPEN   x  | Wait/Spin disabled                        |
  |         | CLOSED    | Wait/Spin enabled                         |
  +---------+-----------+-------------------------------------------+
  |   A2    | CLOSED x  | A0, A1, and A2 are used in combination to |
  |   A1    | CLOSED x  | determine the drive's SCSI ID. The default|
  |   A0    | OPEN   x  | value is six.                             |
  +---------+-----------+-------------------------------------------+


 SS  Self-Seek Jumper
 --------------------
 Quantum ships the ProDrive 120/170/210S hard disk drive from the
 factory with no Self-Seek (SS) jumper installed- that is, with the
 self-seek test disabled. To enable the Self-Seek test, install a
 the SS jumper.

 When the SS jumper is installed, the drive initiates a self-seek
 test. During the self-seek test, the drive can execute any command
 that does not require a disk access. When the self-seek test begins,
 the drive-activity LED (Light-Emitting Diode) lights and remains on
 as long as the test proceeds without error. The drive executes seeks
 in butterfly pattern. Each butterfly seek pattern starts and ends
 with a seek to cylinder 256, where the drive verifies the sector ID.
 If the vertification detects a seek error, the self-seek test
 terminates immediately and the LED flashes continously until the SS
 jumper is removed. When the SS jumper is removed, the drive completes
 the seek pattern in progress and turns off the LED. The drive
 attempts no error recovery and is ready to execute any command.


 EP  Enable Parity Jumper
 ------------------------
 The Enable Parity (EP) jumper controls parity checking across the
 SCSI bus. Installing the EP jumper enables parity checking. Quantum
 ships ProDrive 120/170/210S hard disk drive from the factory with the
 EP jumper installed. Removing the EP jumper disables parity checking.
 The drive still generates parity, but does not perform parity check-
 ing. When the jumper is changed, the new setting takes effect at the
 next power on.


 WS  Wait/Spin Jumper
 --------------------
 The Wait/Spin (WS) jumper controls the Wait/Spin option. Quantum
 ships the ProDrive 120/170/210S hard disk drive from the factory with
 no WS jumper installed - that is, with the Wait/spin option disabled.
 With the Wait/Spin option disabled at power-on, the motor starts
 spinning automatically and the drive is ready within 20 seconds. To
 enable Wait/Spin option, install the WS jumper.

 With the WS jumper installed at power-on, the motor does not start to
 spin until the host sends a START/STOP UNIT command. This delay
 permits power sequencing, preventing the system power supply from be-
 ing overloaded by simultaneous demands for peak start current from
 multiple devices. Once the drive receives the START/STOP UNIT
 command, it is ready within 20 seconds.


 A2/A1/A0  SCSI-Bus Device Identification
 ----------------------------------------
 The SCSI bus can support up to eight devices, including the host
 system. The identification number of each device determines its
 priority level. Ptior to installing the ProDrive 120/170/210S hard
 disk drive, you must choose its SCSI-device identification number.

 Jumpers installed across three pair of jumper pins - A2, A1 and A0 -
 in various combinations permit the assignment of the drive's
 identification number. These three pairs of jumper together comprise
 a 3-bit binary number, in which A2 is the most-significant bit and A0
 is the least significant bit. With a jumper installed, a pair of pins
 represents a 1; with no jumper installed a 0. Thus, with jumpers
 installed across all of the pins, the device identification is 7;
 with no jumpers installed, the device identification is 0.

 Quantum ships the ProDrive 120/170/210S hard disk drive from the
 factory with the A2 and A1 jumpers installed - that is, the drive's
 default SCSI-device identification is 6. If the jumpers are changed,
 the new device identification takes effect at the next power on.

   +----------+-----------------------+
   | SCSI ID  |        Jumpers        |
   |          |  A2   |  A1   |  A0   |
   +----------+-------+-------+-------+
   |    0     | OPEN  | OPEN  | OPEN  |
   |    1     | OPEN  | OPEN  | CLOSED|
   |    2     | OPEN  | CLOSED| OPEN  |
   |    3     | OPEN  | CLOSED| CLOSED|
   |    4     | CLOSED| OPEN  | OPEN  |
   |    5     | CLOSED| OPEN  | CLOSED|
   |x   6     | CLOSED| CLOSED| OPEN  |
   |    7     | CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+

 The SCSI bus supports up to eigth devices, including the host system.
 A device's identification number determines its priority and must be
 unique in the system.


 Driver Terminators
 ------------------
 On the ProDrive 120/170/210S hard disk drive, three resistor networks
 installed in sockets on the PCB terminate the SCSI bus. Quantum ships
 the ProDrive 120/170/210S hard disk drive from the factory with the
 terminating resistors installed. On a SCSI bus, only the first device
 - usually the host - and the last device can contain terminating
 resistors. When installing the ProDrive 120/170/210S hard disk drive
 in any other position on the bus, remove the terminating resistors.



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QUANTUM  PRODRIVE 120/170/210S  PRODUCT MANUAL 1990

 Notes on Installation
 =====================

 Orientation
 The ProDrive 120/170/210S can be mounted in ANY orientation.
 #6-32 UNC screws are recommended for mounting.

 Note
 With the exception of the faceplate and integral mounting bracket,
 clearance between the drive and any other surface must be a minimum
 of 0.10 inch.

 CAUTION: The PCB is very close to the mounting holes. Do not exceed
 the specified length for the mounting screws. The specified screw
 length allows full use of the mounting-hole threads, while avoiding
 damaging or placing unwanted stress on the PCB. To avoid stripping
 the mounting-hole threads, the maximum torque applied to the screws
 must not exceed 8 inch-pounds.


 Ventilation
 -----------
 The ProDrive 120/170/210S hard disk drive operates without a cooling
 fan, provided the ambient air temperature does not exceed 122*F
 (50*C). Any user-designed cabinet should provide adequate air
 circulation to prevent the maximum temperature from being exceeded.


 J3 DC Power Connector
 ---------------------
 The drive's DC power connector (J3) is a 4-pin Ranoda Electronics
 Connector (06300010-04-1), or equivalent, mounted on the back edge of
 the Printed-Circuit Board (PCB).
   +----------+
   |4  3  2  1|
   +----------+

 Recommended connectors and their numbers:

 4-pin connector:         AMP P/N 1-480424-0 or equivalent

 Loose-piece contacts:    AMP P/N 60619-4 or equivalent

 Strip contacts:          AMP P/N 61117-4 or equivalent

  pin 1    +12 VDC
  pin 2    +12 Volts Return (Ground)
  pin 3    + 5 Volts Return (Ground)
  pin 4    + 5 VDC

 Note:
 Labels indicate the pin numbers on the connector. Pins 2 and 3 are
 connected on the drive.


 J1  SCSI Connector
 ------------------
 The SCSI cable connector (J1) on the ProDrive 120/170/210S hard disk
 drive is a 50-pin universal header. A key slot on the header prevents
 the incorrect installation of the header connector on the SCSI cable.
 To prevent the header connector on the SCSI cable from being plugged
 in backwards, use only a keyed header connector.

 Recommended header connectors and their part numbers:

 50-pin connector (without strain relief) AMP P/N 1-746195-2 or
 equivalent

 50-pin connector (with strain relief) AMP P/N 1-499508-2 or
 equivalent


 Faceplate LED Operation
 -----------------------
 Whenever the drive initiates the execution of a command, a green LED
 on the faceplate lights, and remains lit until the execution of the
 command is complete, disconnectec, or aborted.


 Air Filtration
 --------------
 ProDrive Series hard disk drives are Winchster-type drives. The heads
 fly very close to the media surface, with a nominal flying height of
 8 microinches. Therefore, it is essential that the air circulating
 within the drive be kept free of paticles. Quantum assembles the
 drive in a Class-100, purified air environment, then seals the drive
 with a metal cover. When the drive is in use, the rotation of the
 disks forces the air inside the drive through an internal filter.


 SCSI Electrical Characteristics
 -------------------------------
 All signals are asserted, or true, at the low level, and use open-
 collector drivers terminated at each end of the cable with 220 ohms
 to +5 volts (nominal) and 330 ohms to ground. On the ProDrive 120/
 170/210S hard disk drive, resistor networks in sockets terminate the
 lines.

 Note
 To connect multiple devices on a SCSI bus, remove the terminating
 resistors on all but the two devices at the cable ends.

 Each signal driven by the ProDrive 120/170/210S hard disk drive has
 the following output characteristics:

 - True (signal assertion) = 0.0 to 0.5 volts DC at 48 milliamperes
                             (maximum)

 - False (signal deassertion) = 2.5 to 5.25 volts DC

 Each signal from the host to the ProDrive 120/170/210S hard disk
 drive must have the following characteristics, as measured at the
 drive:

 - True (signal assertion) = 0.0 to 0.8 volts DC

 - False (signal deassertion) = 2.5 to 5.25 volts DC

 The ProDrive 120/170/210S hard disk drive uses a standard 50-pin
 SCSI-bus connector (J1) - providing a single-ended, non shielded
 connection. The maximum cable length is 20 ft (6 meters).


 Terminator Power
 ----------------
 The ProDrive 120/170/210S hard disk drive supplies power to the
 terminating resistor through a Schottky diode and a 1-amp fuse that
 has the following characteristics:

 VTERM = 4.25 volts DC to 5.25 volts DC
         800 milliamperes minimum source drive capability
         1.0 milliamperes maximum sink capability, except when
         providing power to an internal terminator
         1.0 amp current limiting (fuse)



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                      F   E   A   T   U   R   E  S
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QUANTUM  PRODRIVE 120/170/210S  PRODUCT MANUAL 1990

 Indroduction
 ------------
 The ProDrive 120/170/210S intelligent hard disk drive features the
 Small Computer System Interface (SCSI) controller.

 The ProDrive 120/170/210S hard disk drive conforms to the proposed
 ANSI X3T9.2/86-109 (SCSI-2) specification.

 NOTE
 As defined by Quantum a megabyte is 1,000,000 bytes.


 Reliability
 -----------
 Mean Time Between Failures (MTBF): 50,000 Power On Hours (POH),

 Preventive Maintenance (PM):       Not required

 Mean Time To Repair (MTTR):        30 minutes

 Start/Stop:                        10,000 cycles (minimum)


 Seek Time
 ---------

        ----------------------------------+--------+
        Track-to-Track         msec. typ. |   4    |
                       Average msec. typ. | <15    |
        Third-Stroke Seek      msec. max. |  15    |
        Full Stroke            msec. typ. |  27    |
        Latency                msec. avg. |   8.3  |
        ----------------------------------+--------+

 Media Quality
 -------------
 The ProDrive 120/170/210S hard disk drive features automatic defect
 management, making the manual identification of defects unneccessary.
 Defect management is completely transparent to the user.

 Error Rates:
 A data error occurs whenever the drive fails to read or write a
 sector of data correctly. An error detected when reading may be
 correctable or uncorrectable. When a data error occurs, if the data
 can be transferred successfully using the drive's default error-
 recovery algorithm, the data error is recoverable; otherwise, it is
 unrecoverable. The miscorrection rate indicate the frequency with
 which the drive transfers incorrect read data, due to faulty ECC
 correction using the default error-recovery algoritm.

 If a data error recurs on each of eight retries, it is a read error;
 otherwise it is a soft error. Hard errors generally occur due to
 media defects.


 Error Correcting Code (ECC)
 ---------------------------
 6 bytes. Contains the error-correction bytes used to maintain data
 integrity when the data fiel is read.


 Acoustics
 ---------
 Idle Mode:   45 dBA maximum, at 1 foot in any direction


 Track Format
 ------------
 The ProDrive 120S, 170S, and 210S hard disk drives all use the same
 sector format. The principal differences between the drives are the
 number of data zones, and tracks and sectors available for use in
 each zone. The ProDrive 120S and 170S hard disk drives have two
 zones, with 48 sectors per track in the outer zone and 36 sectors per
 track in the inner zone. The ProDrive 210S hard disk drive has eight
 zones, with 39 to 59 sectors per track, depending on the location
 of the zone on the disk. Two sectors per cylinder are reserved as
 spares for defect management. Thus, the 120S has 238 user sectors per
 cylinder in the outer zone and 178 in the inner zone. The 170S has
 334 user sectors per cylinder in the outer zone and 250 in the inner
 zone. On the 210S, the number of sectors per cylinder ranges from 411
 in the outermost zone to 271 in the inner zone.


 Automatic Actuator Lock
 -----------------------
 To ensure data integrity and prevent damage during shipment, all
 ProDrive Series hard disk drives feature a dedicated landing zone and
 Quantum's patented AIRLOCK. AIRLOCK, locks the headstack in the
 landing zone. It consists of an airvane mounted near the perimeter of
 the disk stack and a locking arm that restrains the actuator arm
 assembly when the disks are not rotating.

 When DC power is applied to the motor and the disk stack rotates, the
 rotation generates an airflow on the surface of the disk. As the flow
 of air across the airvane increases with disk ratation, the locking
 arm pivots away from the actuator arm, enabling the headstack to move
 out of the landing zone. When DC power is removed from the motor, a
 return mechanism automatically pulls the actuator into the landing
 zone, where the AIRLOCK holds it in place.


