N D - 4 3 7 S D NEWBURY DATA
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 3.5"/HH Cylinders 1560| | |
Capacity form/unform 437/ 517 MB Heads 9| | |
Seek time / track 12.5/ 2.5 ms Sector/track | | |
Controller SCSI1 DIFFERENTIAL Precompensation
Cache/Buffer 128 KB Landing Zone
Data transfer rate MB/S int Bytes/Sector 512
6.000 MB/S ext SYNC
Recording method RLL 1/7 operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 5 50 | -40 65
Power: sleep W Humidity % 5 80 | 5 80
standby W Altitude km -0.305 3.048| -0.305 12.192
idle W Shock g 3 | 50
seek W Rotation RPM 3600
read/write 13.2 W Acoustic dBA 30
spin-up W ECC Bit 56
MTBF h 150000
Warranty Month
Lift/Lock/Park YES Certificates CSA,FCC,IEC380,IEC950,TUV
**********************************************************************
L A Y O U T
**********************************************************************
MAXTOR LXT SCSI PRODUCTS 213SY/340SY/437SY/535SY DOC. 1023787
+---------------------------------------------------------50
| ++ |XX
| || |XX
|+-+ || |XX
|| |J4 +1 |XX
|+-+ PCB LAYOUT OPTION A ++ |XX
|+-+ Terminators || |XX J1
|| | || |XX
|| |J2 +1 |XX
|| | ++ |XX
|| | || |XX
|| | || |XX
|+-+ +1 |XX
| +--J6--10 |XX
|+-+ 1------+ |X1
|| |J5 |
|+-+ |XX Power
| |XX J3
+---------------------------------------------------------+
+---------------------------------------------------------50
| ++ |XX
| || |XX
|+-+ || |XX
|| |J4 +1 |XX
|+-+ PCB LAYOUT OPTION B ++ |XX
|+-+ Terminators || |XX J1
|| | || |XX
|| |J2 +1 |XX
|| | ++ |XX
|| | 12-+ || |XX
|| | | |J9 || |XX
|+-+ | | +1 |XX
| +-1 +--J6--10 |XX
|+-+ 1------+ |X1
|| |J5 |
|+-+ ++J8 |XX Power
| ++ |XX J3
+---------------------------------------------------------+
Tailgate PCB for Differential SCSI
/--------------DRIVE-------------------------------------
/ / |
/ / |
+--------------------------------------------------------+ |
| XXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX | |
| 4 Pin male DC Male SCSI on Drive PCB | |
| connector on Drive PCB | |
| +-------------------------------------------+ | |
4 female DC connector +----------------------------+Female|SCSI on
XXXXXXXXX | +----------------------------+back side of |
| | | | | tailgate PCB |
+--+-+-+-+----+ | | /
| ++-+-+-++ | | /
| +-------+ | |/
| +-+
| |
| +-J1--+ |
| +-----+ |
| J4 J3 SCSI ID |
| XXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
+---------------------------------------------------------+
Male Connector Male SCSI Connector to SCSI Bus
for Power Supply
**********************************************************************
J U M P E R S
**********************************************************************
MAXTOR LXT SCSI PRODUCTS 213SY/340SY/437SY/535SY DOC. 1023787
Jumper Setting
==============
Some drives were being manufactured with OPTION B. If your drive has
OPTION B, J8 should have a jumper only if terminator power is not
supplied by the initiator.
x = Jumper set at factory
J4 Service Connector Pin Assignment
------------------------------------
----+------+------+------+------+------+---PCB
|Pin 2 |Pin 4 |Pin 6 |Pin 8 |Pin 10|
|CNMI |CRDX |GND |SPDL |-LED |Active Low
| | | |Pu.REF|DRV |
+------+------+------+------+------+
|Pin 1 |Pin 3 |Pin 5 |Pin 7 |Pin 9 |
|GND |CTDX |GND |N/C |+ 5V |
| | | | | |
+------+------+------+------+------+
When an LED is connected to pins nine (+) and ten (-), that LED
functions in the same manner as the LED which is mounted on the disk
drive's faceplate. This is typically used in cases when the drive
is mounted in a position where the LED is not visible or the face-
plate is removed.
Pins two through four are the RS-422 lines used to down load firmware
updates to the microprocessor which are then stored on the disk. Pins
three (transmit data) and four (receive data) are the main communica-
tion lines. Pin two is used to debug the processor and for a non-
maskable interrupt. Pins five and six are signal ground lines. Pin
eight is used to synchronizes the spindles. Pin 9 may be used as
term. power.
J6 SCSI ID Setting
-------------------
+----------+
| 9 7 5 3 1|
|10 8 6 4 2|
+----------+
+--------+----------+-------+-------+-------+
|SCSI ID | Priority | 5 & 6 | 3 & 4 | 1 & 2 |
| | | (MSB) | | (LSB) |
+--------+----------+-------+-------+-------+
| 0 | Lowest |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 | Highest |CLOSED |CLOSED |CLOSED |
+--------+----------+-------+-------+-------+
SCSI ID jumpers (pins one through six on J6) are provided to con-
figure each disk drve with a SCSI device ID for use in multiple SCSI
device configurations.
An ID of seven is the highest priority in a multiple device
configuration, and is usually used by the initiator.
The disk drive is shipped from the factory with an ID of six. This
assures that sufficient jumpers are available for any address except
seven, which is usually reserved for the host system.
J6 Parity
---------
x 7-8 CLOSED Enables Parity detection
OPEN Disables Parity detection
The parity disable jumper, pins seven and eight of J6, enables (in)
or disables (out) odd parity detection by the disk drive.
The disk drive is shipped with pins seven and eigth in, enabling
parity detection.
J6 Drive Power-Up Options
--------------------------
x 9-10 CLOSED Start when power is applied
OPEN Wait for START Command
Wait for START Command: With no jumper pins nine and ten of J6, the
disk drive does not spin up until the initiator issues a START/STOP
UNIT command with the start bit set to one.
Start When Power is Applied: When pins nine and ten of J6 are
jumpered, the motor starts as soon as power is applied. The disk
drive is shipped in this configuration.
J8 Terminator Power Selection
------------------------------
OPEN The drive is prevented from supplying termination power
to the SCSI bus.
Power to the terminators may come internally from the disk drive or
externally from the SCSI bus.
The drive electronics are capable of sensing if the host is providing
power to the terminators. If the host is not providing power, the
disk drive automatically provides power to the terminators.
J9 Single Ended or Differential
--------------------------------
Single Ended Differential
+---+ +---+
1|o o|2 1|xxx|2
3|xxx|4 3|o o|4
5|o o|6 5|xxx|6
7|o o|8 7|xxx|8
9|o o|10 9|xxx|10
11|o o|12 11|xxx|12
+---+ +---+
xxx = CLOSED
The SCSI bus signals may be either single ended or differential. If a
single ended signal is desired, configure J7 so that pins 3 and 4 are
jumpered and all other pins on J9 are not.
J1 +-----------------+ SCSI ID on Tailgate PCB, Differential
|1 o o 2 (LSB)|
|3 o o 4 |
|5 o o 6 (MSB)|
+-----------------+
If a differential signal is desired, an optional "tailgate" PCB must
be added to the drive. The tailgate PCB must have J1 configured
for the same ID as the disk drive. Additionally J9 must have jumpers
on pins 1 and 2, 5 and 6, 7 and 8, 9 and 10, and 11 and 12, while
pins 3 and 4 should not have a jumper.
**********************************************************************
I N S T A L L
**********************************************************************
MAXTOR LXT SCSI PRODUCTS 213SY/340SY/437SY/535SY DOC. 1023787
Notes of Installation
=====================
Installation direction
----------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
+---------------------+ | +-----+ +-----+ |
+-+-----------------+-+ +--+ +--+
| |
| |
+-----------------+
The drive will operate in all axis (6 directions).
Drive Orientation
-----------------
The drives may be mounted in any position. Certain switching power
supplies may emanate electrical noise, which can degrade the
specified read error rate. For best results, orient the drives so
that the PCB assemblies are not adjacent to these noise sources.
Twelve mounting holes, four on the bottom and four on each side, are
provided for mounting each disk into an enclosure. The size and
location of these holes are identical to industry standards.
Caution: Mounting screw lengths must be chosen so that no more than
0.125 inch of the screw is available to enter the frame mounting
hole. The screw length, if incorrect, will damage the PCB during
installation and void the warranty. The torque applied to the
mounting screws should be between 9 and 12 inch-pounds.
Air Flow Requirements
---------------------
It is recommended that air flow over the drive be a minimum of 25
cubic feet per minute.
Air Filtration System
---------------------
The disks and read/write heads are assembled in a Class 100 environ-
ment and then sealed within the HDA. The HDA contains an absolute
filter, mounted inside the casing, to provide internal air
filtration.
Initiator-Target Configurations
-------------------------------
The SCSI initiator interface offers a number of unique advantages
which facilitate the interconnection of the disk drive with one (or
more) computer systems. Unlike traditional microcomputer disk
interfaces, such as ST506, SCSI supports multiple peripherals and
different peripheral types, all operating on the same bus structure.
Single Host, Single Device
--------------------------
+------------+ +-----------+
| HOST X+-----------xxxx------------+x SCSI |
| | xxxx |x |
| SYSTEM +-----------xxxx------------+x DEVICE |
+------------+ 50-Pin +|----------+
Ribbon Cable | Terminator packs
Multiple Host, Multiple Device
(Single Ended Version)
------------------------------
+------------+ +-----------+
| HOST X+---------------------------+* SCSI |
| | |. |
| SYSTEM +--+ +------------------+ +-+* DEVICE 1|
+------------+ | | | | +|----------+
| | | | | Terminator packs
| | | | Removed
| | | |
+------------+ | | | | +-----------+
| HOST X+--+ | | +-+* SCSI |
| | | | |. |
| SYSTEM +----+ | +-+* DEVICE 2|
+------------+ | | +|----------+
| | | Terminator packs
| | Removed
| |
| | +-----------+
| +-+x SCSI |
| |x |
+---+x DEVICE 3|
+|----------+
| Terminator packs
Installed
LXT SCSI drives also supports multiple initiator configurations
consistent with the established arbitration cycle outlined in the
SCSI standards. Configuration changes are made by SCSI address
jumpers, which are set when the drive is installed in the system.
The SCSI implementation used in the disk drive is intended to
facilitate high-speed data transfers between the initiator and the
drive. Interconnection between the initiator system(s) and the drive
is via a fifty-pin ribbon cable. The drive may be configured as
either single ended or differential.
Interface Termination
---------------------
Single Ended
SCSI devices require proper interface termination. The first device
and the last device on a SCSI bus daisy chain must be terminated.
Remove the terminators from any devices in between. For instance, if
a disk drive is in the middle of a SCSI bus daisy chain, remove its
terminators.
The terminator resistor pack's pin one is marked with a dot. Note
that the PCB's hole/solder pad for pin one has a square outline,
where as all the other holes/pads have a round outline. Also, note
that pin one is always the closest pin to the power connector, J3.
Note: All terminator packs (U40 through U42) must be oriented with
the dot (pin one) toward J3 for the disk drive to work properly.
As shipped, the interface signal lines are terminated with three re-
movable 220/330 ohm resistor network packs.
The devices driving the disk drive inputs should be open collector
devices capable of sinking at least 48 milliamps at a voltage level
of less than 0.5 volts DC (7438 or equivalent).
Devices receiving the disk drive outputs should be of a SCHMITT
trigger type to improve noise immunity (74LS14, 74LS240, or
equivalent). The initiator should not load the bus with more than one
standard low power Schottky transistor-transistor logic (LSTTL) input
load per line, and should terminate all input signals with 220/330
ohm terminators.
Spindle Synchronization
-----------------------
The configuration for the synchronized-spindle bus is a twisted pair
cable, daisy-chained from the master to each slave drive. This
twisted pair cable is connected to the Service Connetor (J4) on each
drive. The mating connector used on J4 is a Dupont part number
69764-010 or Berg part number 6976410. The last slave drive on the
bus will have a 2k ohm resistor from pin 8 (SPDL) to +5 volts. Pin 9
on J4 may be used as term. power. The maximum cable lenght is 3
meters.
System Cabling With One Drive in Master Mode
--------------------------------------------
+---------+ +---------+ +---------+ +---------+
|Disk | |Disk | |Disk | |Disk |
|Drive | |Drive | |Drive | |Drive |
|MASTER | |SLAVE | |SLAVE | |SLAVE |
+-+-----+-+ +-+-----+-+ +-+-----+-+ +-+-----+-+
+6-8-9+ +6-8-9+ +6-8-9+ +6-8-9+
| | | | | | | | 2K
| +---------+-o----SPDL-+-o---------+-o-
+--Twisted--o-pair------o-cable--GND+
After power is reset, the drive will be in an independent spindle
mode, not configured for either a MASTER or SLAVE mode. Each drive
must be configured for the appropriate mode of operation. This
configuration is accomplished via a MODE SELECT command with Page 4
setting the RPL bits in byte 17, bits 0 and 1. The master drive will
generate the spindle-synchronization sync pulses with the slave
drives to receive the sync pulses. The connection between drives for
the sync reference pulse, is a bi-directional line. The master can be
either the host or a drive, that generates the sync reference pulse.
J1 Pin Assignments and Connector
--------------------------------
LXT SCSI drives communicate with an initiator system via a fifty-pin
connector. Pin twenty-five is not connected. Pin one is located on
the end of J1 closest to the DC power connector, J3.
Connection to J1 is via a nonshielded fifty-conductor connector,
consisting of two rows of twenty-five female contacts on 0.1 inch
centers.
J3 Power Connector
------------------
The DC power connector, J3 is a four-pin AMP MATE-N-LOCK connector,
part number 3505430-1. The recommended mating connector is AMP part
number 1-480424-0 using AMP pims part number 350078-4 (strip) or part
number 61173-4 (loose piece).
+------------+ pin 1 +12 VDC Supply
| 4 3 2 1 | pin 2 +12 Volts Return
+------------+ pin 3 + 5 Volts Return
pin 4 + 5 VDC Supply
J4 Service Connector
--------------------
Connector J4 is a service connector provided for serial input, the
synchronous spindle, and the ability to carry the LED signal beyond
the disk drive. The service connector has ten pins. Its mating
connector is a Berg 6976410 part.
Sector Size
-----------
The disk drive is shipped from the factory formatted with a default
sector size of 512 bytes. The user can reformat the drive to the
user's sector size, using the PList, and the user's configuration
parameters.
Buffering Scheme
----------------
The disk drive buffer is either a 32-kilobyte data buffer. The buffer
controller allows transfer to the disk and from the initiator
simultaneously, or from the disk and to the initiator simultaneously.
Power-Up Sequence
-----------------
DC power (+5 volts and +12 volts) may be supplied in any order. Both
power supplies must be present and within the tolerances of the power
sending circuit, before the motor will spin up. When the spindle
reaches full speed, the actuator lock automatically disengages. The
disk drive performs automatic SEEK calibration during start up for
optimum SEEK performance. The drive spin up and becomes ready in 15
seconds. The drive executes in recalibration sequence whenever power
is applied or the SCSI START/STOP command invoked via the SCSI bus.
Removable Faceplate
-------------------
The faceplate is screwed to the front of the HDA in some LXT models,
and clipped to the front in others. The faceplate may be removed in
installations that do not require it.
**********************************************************************
F E A T U R E S
**********************************************************************
MAXTOR LXT SCSI PRODUCTS 213SY/340SY/437SY/535SY DOC. 1023787
Drive Mechanism
---------------
The HDA is a sealed subassembly containing the mechanical portion of
the disk drive. A brushless DC motor contained within the spindle hub
rotates the spindle and is controlled by a dedicated microprocessor.
Shock mounting is provided internally in the HDA and externally at
vibration isolators to minimize transmission of vibration through the
frame. The frame is the mechanical assembly holding the HDA and PCB.
Seek Time
---------
+---------------------------+--------+--------+--------+--------+
| |LXT213SY|LXT340SY|LXT437SY|LXT535SY|
+---------------------------+--------+--------+--------+--------+
|Single Track Read msec. | 3.0 | 2.5 | 2.5 | 2.5 |
| Write msec. | 3.0 | 3.0 | 3.0 | 3.0 |
|Average Read msec. | 15.0 | 12.0 | 12.0 | 12.0 |
|Average Write msec. | 15.0 | 13.0 | 13.0 | 13.0 |
|Full Stroke msec. | 30.0 | 30.0 | 30.0 | 30.0 |
|Average Latency msec. | 8.3 | 8.3 | 8.3 | 8.3 |
+---------------------------+--------+--------+--------+--------+
Physical Sectors per Track by Zone
-----------------------------------
Zone| LXT213SY| LXT340/437/535SY
----+---------+-----------------
1 | 34 | 47
2 | 41 | 53
3 | 45 | 59
4 | 49 | 64
5 | 53 | 66
6 | 56 | 68
7 | | 71
8 | | 72
Logical Sectors per Track by Zone
----------------------------------
Zone| LXT213SY| LXT340/437/535SY
----+---------+-----------------
1 | 33 | 46
2 | 40 | 52
3 | 44 | 58
4 | 48 | 63
5 | 52 | 65
6 | 55 | 67
7 | | 70
8 | | 71
Error Conditions
----------------
When the drive fails to achieve synchronization a Unit Attention with
an additional Sense Code of 0x5C (RPL status change) will be posted.
Additionally, if subsequent to achieving synchronization the drive
detects a loss of synchronization and no I/O operation is beeing
executed, a check condition of Unit Attention with RPL status change
will be posted.
If an I/O operation is beein executed, and no other error condition
exists, the drive shall return a check condition status. The Sense
Key will be Recovered Error if the drive is able to recover. If it is
not able to recover, then the Sense Key will be Hardware Error, with
an additional sense code of RPL status change.
Note: The number of slave drives that can be directly attached to the
master drive is dependent on zhe cable length and output capability
of the open collector driver.
A fault tolerant method would be dual 60 Hz +/- .01% crystal oscilla-
tors as the master synchronized-spindle with a buffer output to each
slave drive.
The J2 connector on the front of the drive, pin 9 is +5 V, the
maximum current rating is 100 milliamps. A preferred method would be
an external power source.
If the requirement is for an LED to be displayed on the drive, some
allowance must be made, due to the same connector is used for both
the LED and synchronized-spindle. The LED is connected from pin 10
(-LED Drv) to pin 9 (+5 volts).
Medium Type
-----------
The drive always returns a medium type of zero.
Power-Up Testing
----------------
The self-test sequence is performed upon power up, and is followed by
the initialization sequence. When the drive is reset, either by the
SCSI bus -RST signal or by the BUS DEVICE RESET message, only the
initialization sequence is performed.
Note: The self-test sequence can also be initiated via the SEND
DIAGNOSTIC and RECEIVE DIAGNOSTIC RESULT commands, and these commands
include options for more comprehensive diagnostics.
Self-Test Sequence
------------------
The self-test sequence is executed upon disk drive power up. The
self-test sequence verifies the integrity of the hardware. This test
is not an exhaustive hardware diagnostic, but simply a check of the
major components for full functionality. The drive does not respond
to a SELECTION phase on the SCSI bus for about the first 250 milli-
seconds of the self-test. After 250 milliseconds have passed, the
drive responds to SELECTION with a BUSY status for 2 to 3 seconds.
This time is spent completing the remaining self-test sequences,
initializing the SCSI chip, and enabling the SCSI interrupts.
Shipping
--------
At power down, the heads are automatically positioned over the non-
data, dedicated landing zone on each disk surface. The automatic
shipping lock solenoid is also engaged at this time. Maxtor ships the
disk drive in single or multipack shipping containers. Users can ship
the drive installed when the nonoperating shock and vibration limits
are not exceeded.
