. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HAWK 1LP Family:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Wide bus)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST31200W/WD/WC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST3620W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Guide
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Contents
Introduction ........................................................ 1
Electromagnetic interference ............................ 1
Before you begin ................................................ 3
Installation overview .......................................... 8
Product Repair.................................................... 10
Shipping ......................................................... 11
Product Repair and return information ........... 11
Technical support services ............................... 12
Hawk 1LP (wide) product information .............. 15
Initial set-up information.................................... 17
Drive configuration.............................................22
Drive installation................................................. 33
© 1994 Seagate Technology, Inc. All rights reserved
Publication Number: 77767468, Revision B.
May 1994
Seagate®, Seagate Technology® and the Seagate logo
are registered trademarks of Seagate Technology, Inc.
HawkTM, SeaFAXTM, SeaFoneTM, SeaTDDTM and
SeaBOARDTM are trademarks of Seagate Technology,
Inc. Other product names are registered trademarks or
trademarks of their own.
Seagate reserves the right to change, without notice,
product offerings or specifications. No part of this
publication may be reproduced in any form without
written permission of Seagate Technology, Inc.
Hawk 1LP (Wide) Installation Guide, Rev. B 1
Introduction
This manual is organized to assist you in the installation
and operation of your Seagate Hawk 1LP (wide bus)
family disc drive. Family models are listed in the Product Information section. It also provides information to
aid in obtaining service for the drive. The Hawk 1LP
(wide) family drives have a 16 bit data interface.
Before attempting any installation, please read through
all applicable sections of this document, including all
warnings and cautions.
Warning.
This equipment generates, uses, and can radiate radio
frequency energy and if not installed and used in
accordance with these instructions, may cause inter-
ference to radio communications.
Electromagnetic interference (EMI) considerations
The drive(s) described herein, as delivered, are designed for system integration and installation into a
suitable enclosure prior to use. As such, the drive(s)
described herein are supplied as a sub-assembly and
are not subject to Subpart J of Part 15 of the FCC Rules
2 Hawk 1LP (Wide) Installation Guide, Rev. B
and Regulations nor the Radio Interference Regula-
tions of the Canadian Department of Communications.
However, the unit has been tested using proper shielding and grounding and found to be compliant with the
Class A limits of the FCC Rules and the Regulations of
the Canadian Department of Communications.
The physical design characteristics of the drive(s)
described herein, serve to minimize EMI radiation
when installed in an enclosure that provides reasonable shielding. As such, the drive(s) are capable of
meeting the Class B limits of the FCC Rules and the
Regulations of the Canadian Department of Communications.
Note. It is the end users' responsibility to assure that
the drive(s) described herein meet the appropriate EMI requirements of their system.
Shielded I/O cables may be required if the
enclosure does not provide adequate shielding. If I/O cables are external to the enclosure,
shielded cables should be used, with the shields
grounded to the enclosure and to the host
controller.
Hawk 1LP (Wide) Installation Guide, Rev. B 3
Before you begin
Verify that the system is switched off and disconnected from main power before any installation is
attempted.
Protect yourself, the drive, and your valuable programs and data by reading the following cautions
and warnings.
• Do not tamper with sealed top cover. Doing so voids
your warranty. The drive contains no user serviceable components. See Product Repair section for
more information.
• Visually inspect the shipping container for any obvious damage.
• Verify all parts listed on shipping bill are received with
the equipment. Discrepancies or damage should be
reported to the shipping company.
• Inspect drive for possible shipping damage. All claims
of this type should be filed promptly with the transporter involved. Save original packing materials to be
used when reshipping.
4 Hawk 1LP (Wide) Installation Guide, Rev. B
• When transporting or shipping a drive or system,
please ensure that they are correctly packed in
original Seagate approved (or equivalent) container
and shipped via an air-ride carrier experienced in
handling computer equipment.
• Do not unpack drive from its static shielded bag until
you are ready to install it in the system.
• Always handle the drive by the frame or casting.
• Do not touch Printed Circuit Board (PCB) or the I/O
connector pins.
• Never apply pressure to the PCB or to the drive top
cover
Hawk 1LP (Wide) Installation Guide, Rev. B 5
Caution. The circuit assemblies and components
contained in this equipment can be degraded
or destroyed by Electrostatic Overstress
(EOS) or by Electrostatic Discharge (ESD).
Static electrical charges can accumulate
quickly on personnel, clothing and synthetic
materials. The electrostatic fields due to these
charges when brought in close proximity to
susceptible circuit assemblies and components, can result in degraded reliability or
immediate failure of the affected component
or assembly.
To insure optimum reliable equipment operation, it is required that technical support personnel discharge themselves by wearing a
grounding strap around the wrist and be
connected to a grounding terminal while working in the vicinity of, and while handling EOS/
ESD susceptible assemblies/parts. If unavailable, ground yourself frequently by touching
the metal chassis of the system before handling any components (this helps only if the
system is connected to a ground).
static-inducing carpeted areas.
Avoid
This procedure is especially important when handling
printed circuit boards (PCB's).
6 Hawk 1LP (Wide) Installation Guide, Rev. B
Safety instructions
1. The disc drive(s) are to be installed in a customer
supplied enclosure where the surrounding air does
not exceed 50oC.
2. Four (4) 6-32 UNC-2A screws are required for
installation. Maximum screw length into side of
drive is 0.15 inches (3.81 mm). Maximum screw
length into bottom is 0.20 in. (5.08 mm). Maximum
screw tightening torque is 6.0 in-lb (.675 NM) with
minimum thread engagement of 0.12 in (3.0 mm).
3. The power requirements are shown in the Product
Information section.
4. The power supply must satisfy the safety requirements for SELV (Safety Extra Low Voltage) circuits.
5. Service is to be provided by trained Seagate service personnel.
6. The incorporation of the disc drives listed in this
guide into a customer enclosure must meet the
appropriate safety requirements of the country in
which it is used (e.g. UL 1950, CAN/CSA-C22.2
No. 950-M89, DIN VDE 0805/05.90 and EN60950:
1988 (IEC 950).
Note.
Power must be off when connecting or disconnecting.
Hawk 1LP (Wide) Installation Guide, Rev. B 7
Sicherheitsanleitung
1. Däs Gerät ist ein Einbaugerät, vorgesehen für eine
maximale Umgebungstemperatur von 50oC.
2. Zur Befestigung des Drives werden 4 Schrauben
benötigt (6-32 UNC-2A). Die maximale Länge der
Schrauben in der unteren Seite des Chassis darf
nicht mehr als 0.20 in (5.08 mm) betragen, die in
der oberen 0.15 in (3.81 mm). Maximalle
Schraubenanziehung von 6.0 in-lb (.675 NM) mit
minimalem Gewindeansperuch 0.12 in (3.00 mm).
3. Die Versorgungsspannungen werden in der Sektion
Produkt Information gezeigt.
4. Die Versorgungsspannung muss SELV entsprechen.
5. Alle Arbeiten dürfen nur von ausgebildetem Seagate
Service-Personal durchgefürhrt werden.
6. Der Einbau des Drives muss den Anforderungen
gemäss DIN VDE 0805/05.90 oder EN60950: 1988
(IEC 950).
Vorsicht
Ánsehluss oder Entfernung oler Geräteverbindung nur
bei abgeschalteter Versorgungsspannung vornehmen.
8 Hawk 1LP (Wide) Installation Guide, Rev. B
Installation Overview
Installation of the drive can be divided into distinct
phases. Some of these may not be applicable to all
system installation requirements. Refer to the individual drive installation sections for specific information
on your drive model.
• Drive configuration: Select those drive features
that are appropriate to install the drive in the system.
In "W/WD" models this is done by installing or removing user configuration jumpers found on the drive
PCB. For "WC" models, some of the configuration
parameters can be set over the 80 pin interface.
• Mechanical installation: After setting up the drive
configuration the drive must be mechanically installed into the host system and the power and I/O
cables attached. Previously mentioned precautions
should be observed.
• CMOS configuration: SCSI drives should not be
defined in the CMOS. The SCSI host adapter uses its
own BIOS to handle the Input/Output procedures.
The CMOS setting for SCSI drive is either drive type
zero, or the no drive installed option.
Hawk 1LP (Wide) Installation Guide, Rev. B 9
• Low-Level formatting: All Hawk 1LP wide family
drive models are low-level formatted at the factory
and do not require this step during installation. If an
installed drive is low-level formatted, all user data will
be lost.
Note: Seagate Technology assumes no liability for lost
user data.
• Partitioning and high level formatting: A drive can
be sub-divided into "partitions" which behave as
individual drives within the system. Consult the system documentation for instructions on partitioning
and high level formatting. Information is also available in bookstores and libraries.
10 Hawk 1LP (Wide) Installation Guide, Rev. B
Product repair information
Service requirements
The special facilities required for the manufacture of
these drives generally prohibit repair in the field. If
problems occur during installation, please contact your
supplier for assistance. Do not attempt to disassemble
or repair. Drives should be sent to the repair depot
through the purchase source, if possible. Please observe the following cautions.
Caution.
• Handle drive with care. Do not drop, or bump hard.
• Never remove the cover of these disc drives. Servicing items in the sealed HDA (heads, media, actuator, etc.) require special facilities. The drive contains
no user purchasable parts or PCBs.
• Opening the sealed HDA voids the drive warranty.
• Applying a soldering device to the components on
the PCB voids the drive warranty.
• Do not connect or disconnect cables without first
removing power from the drive.
Hawk 1LP (Wide) Installation Guide, Rev. B 11
• Place drive on a flat, static dissipative surface and
handle with extreme care. Always follow all EOS/
ESD precautions to avoid damage to the electrical
assemblies.
Shipping:
When transporting or shipping a drive, a Seagate
approved container must be used. Keep your original
box. They are easily identified by the Seagate Approved Package label. Shipping a drive in a nonapproved container voids the drive warranty.
Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in
transit. Contact your Authorized Seagate Distributor to
purchase additional boxes. Seagate recommends shipping by an air-ride carrier experienced in handling
computer equipment.
Product repair and return information
Seagate customer service centers are the only facilities
authorized to service Seagate drives. Seagate does
not sanction any third-party repair facilities. Any unauthorized repair or tampering with the factory-seal voids
the warranty.
12 Hawk 1LP (Wide) Installation Guide, Rev. B
Warranty: Contact your Seagate Authorized Distribu-
tor, Dealer or other purchase source for warranty
information.
If the drive is no longer under warranty contact purchase source for repair information or refer to numbers
listed in section Technical Support Services.
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 available for all Seagate products by calling the
SeaFAX, SeaFone, SeaTDD or SeaBOARD services.
These are toll calls.
SeaFAX number : United States 408/438-2620
England 44-62-847-7080
You can use a Touch-Tone telephone to access
Seagate's automated FAX delivery system and select
technical support information by return FAX. This service is available 24 hours a day, 7 days a week.
Hawk 1LP (Wide) Installation Guide, Rev. B 13
SeaFone telephone number: 408/438-8222
The enhanced phone system provides recorded technical information on selected Seagate products while
you are on hold. Technical support specialists are
available to answer questions from 8:00 AM to 5:00 PM
PST, Monday through Friday. Recordings are accessible 24 hours a day, 7 days a week.
SeaTDD telephone number: 408/438-5382
TDD is a Telecommunication Device for the Deaf
where two people can communicate using a keyboard
that is connected to the phone line. A TDD device is
required to access this service. This service is available
from 8:00 AM to 5:00 PM PST, Monday through Friday.
SeaBOARD service:
The Seagate Technical Support Bulletin Board System
(BBS) is available 24 hours a day, 7 days a week. A
modem is required to access this service. (300–9600
baud, 8-N-1). This is a toll call.
14 Hawk 1LP (Wide) Installation Guide, Rev. B
With this service you can access:
• Specifications and jumper configurations for all
Seagate products.
• Reprints of Seagate documentation.
• A directory of information and helpful utilities that you
can download to your own computer.
BBS Modem
Location Number
USA, Mexico, Latin America 408/438-8771
Canada 416/856-5581
England 44-62-847-8011
France 33-1-40-67-1034
Germany 49-89-140-9331
Singapore 65-292-6973
Australia 61-2-756-2359
Korea 82-2-556-7294
Note: These are toll calls
Hawk 1LP (Wide) Installation Guide, Rev. B 15
Hawk 1LP family (Wide) information
Characteristics of the various drives covered by this
manual are listed in the following table.
Legend for table column meanings:
A = capacity, unformatted megabytes
B = capacity, formatted megabytes [1]
C = number of cylinders, user accessible
D = number of heads
E = + 5 V typical current [2], Amps
F = +12 V typical current [2], Amps
Model A B C D E F
ST31200W 1258.8 1055.28 2700 9 .73 .57
ST31200WD 1258.8 1055.28 2700 9 .73 .57
ST31200WC 1258.8 1055.28 2700 9 .73 .57
ST3620W 651.8 545.9 2700 5 .73 .57
"Wide" family products have a 16 bit SCSI data bus
rather than the normal 8 bit data bus.
Notes.
[1] Standard units are factory formatted with 512 data bytes
per sector with nine spare sector per cylinder and 2
cylinders at inner tracks reserved for spares in addition
to capacity listed.
[2] Measured with an average reading DC ammeter. In-
stantaneous +12 V current peaks will exceed these
values.
16 Hawk 1LP (Wide) Installation Guide, Rev. B
Initial set-up information
For the initial setup connect the cables or plug into a
mounted connector (if applicable), set the drive ID on
the bus and enable or disable the I/O line terminator
resistor packs (Hawk 1LP family "W" models only).
These procedures are described in paragraphs following. Note whether drive model number ends in W, WD
or WC.
SCSI interface cable connection
The Hawk 1LP family wide drives are SCSI interface
drives. System connection on "W" and "WD" models is
via a 68 pin SCSI connector. System connection for
"WC" models is via an 80 pin SCSI and DC power
connector. The "WC" model plugs directly into a PCB or
bulkhead mounted mating 80 pin connector. Pin 1 is
noted in Figure 2. Some cables have a contrasting color
stripe on one edge to indicate pin 1. On the Hawk 1LP
wide drives the I/O connector is keyed by virtue of its
shape. There is only one way it can mate with the
mating input connector. Strain relief is recommended at
the cable in drives using cables. Do not block system
cooling air flow in routing of cables.
J1-DC Power
Connector
Pin
1P
2P
3P
4P
Power
+12V
+12V ret
+ 5V ret
+ 5V
J1
1P2P3P4P
68 Pin SCSI I/O
Connector
J1-Auxiliary
Hawk 1LP (Wide) Installation Guide, Rev. B 17
DC Power connection
Hawk 1LP family "W/WD" model drives receive DC
power through a 4 pin connector mounted on the PCB
in line with the SCSI I/O connector. See figure below.
Figure 1. DC power connection, 68 pin SCSI I/O
connector
Hawk 1LP "WC" model drives receive power from the
host computer through the 80 pin combined SCSI I/O
and power connector. No separate DC power connec-
tor is provided on the drive (See Figure 2b).
SCSI address selection
On "W" and "WD" model drives
, make sure that the
SCSI bus address jumper(s) are properly set for the
bus address assigned to the drive. See figures 3a and
3b showing the bus address select header and the
jumper configurations that select addresses 0 through
15. Typically the primary boot device is set to ID 0, and
the subsequent SCSI drives are jumpered in ascending
18 Hawk 1LP (Wide) Installation Guide, Rev. B
order. Bus addresses 0 through 14 should be used (the
host adapter usually uses address 15). If the drive
"Busy" LED shows no on/off activity when the host is
trying to communicate with it, an incorrect bus address
selection at the drive should be suspected.
On "WC" model drives
ably will be, set over the 80 pin interface by the host
computer. Unless directed to do so by the system
documentation, no jumpers should be installed for
address selection.
system also has complete control over motor start
functions, so no Motor Start or Delayed Motor Start
Jumpers should be installed.
Terminator resistor packs
As a factory installed option, Hawk 1LP family model
"W" drives can have terminator resistor packs that are
permanently installed, but can be enabled or disabled
by jumper plug. See jumper in Figure 3a. If you are
installing a single drive, the terminator resistor packs
must remain enabled. If you are installing multiple hard
disc drives, disable the termination resistor packs from
all the drives but the one connected to the end of the
SCSI I/O cable.
the SCSI ID can be and presum-
On "WC" model drives
, the host
Hawk 1LP (Wide) Installation Guide, Rev. B 19
On "WC" model drives
ably will be, set over the 80 pin interface by the host
computer. Unless directed to do so by the system
documentation, no jumpers should be installed for
address selection. On "WC" model drives, the host
system also has complete control over motor start
functions, so no Motor Start or Delayed Motor Start
Jumpers should be installed.
Hawk 1LP family "W" model drives have terminator
resistor packs that are permanently installed, but can
be enabled or disabled by jumper plug. See jumper in
Figure 3a. If you are installing a single drive, the
terminator resistor packs must remain enabled. If you
are installing multiple hard disc drives, disable the
termination resistor packs from all the drives but the
one connected to the end of the SCSI I/O cable.
the SCSI ID can be and presum-
20 Hawk 1LP (Wide) Installation Guide, Rev. B
Model numbers that end in "WD" have differential I/O
circuits and these drives and "WC" model drives have
no provisions for terminators on the drive PCB. The
system manufacturer must provide some external
means of I/O line termination. The Hawk 1LP family
"W/WD" model drives can provide power for external
terminators if the TP jumper is installed on the last
position on the right end of J2. See Figure 3a.
Read/Write head auto-park
Seagate disc drives described herein mentioned in this
drive park the heads automatically at power off. This
feature requires no operator intervention.
Optional parity bit enable
Some systems require parity bit checking. Consult the
system documentation for the specific requirements.
See figure 3a for location of Parity Bit enable jumper.
Jumper-installed enables parity reporting by the SCSI
bus.
Write precompensation and reduced write
current
Not required on Seagate SCSI Interface drives covered
by this manual.
80 Pin SCSI I/O
and Power
Connector
J6
J2
Pin 1
Hawk 1LP (Wide) Installation Guide, Rev. B 21
68 Pin
SCSI I/O
Connector
J6
J2
J1-Auxiliary
Pin 1A
J1-DC Power
Pin 1P
J1 Pin 1
Figure 2a. Hawk 1LP family W/WD models I/O
connection (68 pin SCSI I/O connector).
"W" model terminators (not visible) are not
removable.
Figure 2b.Hawk 1LP family WC model drive physical
interface (80 pin SCSI I/O and DC power
connector). Terminators are not provided.
22 Hawk 1LP (Wide) Installation Guide, Rev. B
Drive configuration
Each disc drive has option select header connectors on
the back, side and front where jumper plugs are installed to select the way that the drive is to be configured or to select its ID on the I/O bus. See notes
following Figure 3c. Some host systems have a remote
drive ID selection capability.
"W/WD" family 68 pin SCSI I/O drives
On Hawk 1LP family "W/WD" drives
front of the drive) or J1-auxiliary (at the rear, next to the
DC Power connector) may be used to set the drive ID.
To avoid possible incorrect ID setting, do not use both
J1-auxiliary and J6 for ID selection. The following
figures show where these headers are located on the
different drives covered by this manual. See notes
following Figures 3a, 3b and 3c where explanations are
given about the purpose of each jumper and specify the
standard factory (called "default") settings of these
jumpers (i.e., settings used for most common single
drive application). Changes to these settings should be
made only if it is known that the system requires a
different configuration.
either J6 (on the
Hawk 1LP (Wide) Installation Guide, Rev. B 23
Hawk 1LP family "WC" model 80 pin SCSI I/O drives
On Hawk 1LP family "WC" model drives
auxiliary connector. J6 can be used to set drive ID, but
the host probably does it over the 80 pin interface. J6
can also be used to drive LED indicators and the
synchronized spindle reference signal. The alternate
use of J6 is described in the notes following Figure 3c.
there is no J1-
SCSI ID = 8
SCSI ID = 9
SCSI ID = 10
SCSI ID = 11
SCSI ID = 12
SCSI ID = 13
SCSI ID = 14
SCSI ID = 15
J1-DC Power
Connector
J2
Drive Front
Pin 1
End
J6
SCSI I/O
Connector
J1-SCSI I/O
Pin 1
J2
Pin 1
HDA
Drive with HDA up,
PCB down,
viewed from front
J6
A3A2A
1
SCSI ID = 0
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
SCSI ID = 7
J1-Auxiliary
A
0
See
Figure
3b
[2]
[2]
[2]
[3]
[2]
Delay
Motor Start
Enable
Motor Start
Write Protect
Parity Option
Term. Power
from Drive
Term. Power
to SCSI Bus
Term. Power
from SCSI Bus
Jumper
Positions
Position A
Reserved
R
ESDSMEWPPETETPT
P
Enable
Terminators
[6]
[5]
[5]
[5]
Ground
+5V
11 9 7 5 3 1
Busy
[4]
Connections to drive ID
switching circuits in
host equipment. [4]
Dashed area is optional user
circuitry external to the drive. [4]
Alternate
Useage:
SSP
Ground+5V
24 Hawk 1LP (Wide) Installation Guide, Rev. B
Figure 3a. Drive configurator Hawk 1LP family
W/WD model
Hawk 1LP (Wide) Installation Guide, Rev. B 25
J1-DC Power
J1
68 Pin
SCSI I/O
Connector
Drive
HDA
SCSI ID = 8
SCSI ID = 9
SCSI ID = 10
SCSI ID = 11
SCSI ID = 12
SCSI ID = 13
SCSI ID = 14
SCSI ID = 15
A3A2A
1
SCSI ID = 0
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
SCSI ID = 7
A
0
[3]
J1-Auxiliary
Pin 1A
[2]
4P 3P 2P 1P
PCB
Pin 1
+5V
Ground
11 9 7 5 3 1
Busy
[4]
Connections to drive ID
switching circuits in
host equipment. [4]
Dashed area is optional user
circuitry external to the drive. [4]
Alternate
Useage:
SSP
Ground+5V
Figure 3b. Drive configurator Hawk 1LP family
W/WD model
SCSI ID = 8
SCSI ID = 9
SCSI ID = 10
SCSI ID = 11
SCSI ID = 12
SCSI ID = 13
SCSI ID = 14
SCSI ID = 15
J2
Drive Front
Pin 1
End
J6
Pin 1
J2
Pin 1
HDA
Drive with HDA up,
PCB down,
viewed from front
J6
A3A2A
1
SCSI ID = 0
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
SCSI ID = 7
A
0
[7]
[8]
Sync Spindle
Remote LED
Delay
Motor Start
Enable
Motor Start
Write Protect
Parity Option
Jumper
Positions
R
ESDSMEWPP
E
J1
CATH
Remote LED
[8]
26 Hawk 1LP (Wide) Installation Guide, Rev. B
Figure 3c. Drive configurator for Hawk 1LP family
WC model
Hawk 1LP (Wide) Installation Guide, Rev. B 27
Notes for Figure 3a, 3b and 3c:
[1] Notes explaining the functions of the various jumpers on
jumper header connectors J2, J1-auxiliary and J6 are
given below in left to right order of jumper position. The
term "default" means as standard OEM units are configured when shipped from factory. "Off" means no
jumper is installed; "On" means a jumper is installed. Off
or On
underlined is factory default condition.
[2] The PCB on "WC" models does not have connector J1-
auxiliary, but has a single 80 pin J1 connector having
combined SCSI I/O and DC power connector instead of
the 50 pin SCSI I/O and 4 pin DC power connectors that
"W" and "WD" models have. Included among the 80 J1
pins are the SCSI ID, Motor Start and Delayed Motor
Start select functions, and the synchronous spindle
master sync signal and the remote BUSY LED signal.
Do not use J2 and J6 for these five functions if the host
uses the ones included in the 80 pin J1 connector.
[3] Drive ID may be established by installing jumper plugs
in one of the patterns shown in Figures 3a, 3b and 3c or
by plugging onto J6 or J1-auxiliary a cable that leads to
an external ID selection circuit. Jumper plugs on both J6
and J1 auxiliary, or J6 and an external ID selection
source should not be used. See [4] for other functions of
these two headers that are time-shared with the drive ID
function.
28 Hawk 1LP (Wide) Installation Guide, Rev. B
[4] The drive time-shares the ID and BUSY LED/SSP
functions of J6 and J1-auxiliary. That is, a cable may be
attached to one of these headers to pick up the synchronized spindle reference signal (SSP) and signal that
lights the external BUSY LED indicator. If lines for
external ID selection are not also included in the cable,
jumper plugs must be used on the header not having a
cable connected in order to establish drive ID. The drive
reads the ID from J6 and J1-auxiliary for 250 ms after
power-on or drive reset, and then uses these headers
for the LED and SSP functions the remainder of the
time.
[5] "W" models only.
[6] "W/WD" models only.
[7] "WC" models only. Use the ID signals from the host in
J1, or jumpers on J6 to establish drive ID, but not both.
[8] Not used on "WC" models.
J2
Jumper
Position Jumper Function Description
RES
Off On Reserved. Default is no jumper installed.
DS ME
Off Off Spindle starts immediately after power up - De-
fault setting.
Off On Drive spindle does not start until Start Unit com-
mand received from host.
Hawk 1LP (Wide) Installation Guide, Rev. B 29
continued from previous page
On Off Spindle Startup is delayed by SCSI ID times 12
seconds after power is applied, i.e., drive 0
spindle starts immediately when DC power connected, drive 1 starts after 12 second delay,
drive 2 starts after 24 second delay, etc.
On On Drive spindle starts when Start Unit command
received from host. Delayed start feature is overridden and does not apply when ME jumper is
installed.
WP
On Entire drive is write protected.
Off Drive is not write protected. Default is no WP
jumper installed.
PE
On Parity checking and parity error reporting by the
drive is enabled. Default is PE jumper installed.
Off Drive does not report result of parity checking to
host.
TE (Applies to "W" models only)
On With the jumper installed, the On-board (non-
removable) terminator circuits are enabled (connected to the I/O lines). Default is jumper in-
stalled.
Off Terminator circuits not connected to I/O lines.
30 Hawk 1LP (Wide) Installation Guide, Rev. B
continued from previous page
TP TP (Not applicable to "WC" model drives)
Off Off No terminator power is connected to drive termi-
nators or SCSI bus I/O pin 26.
On Off Drive supplies its own terminator power only.
Jumper on this position is factory default.
Off On Drive supplies power to I/O pin 26 of SCSI bus;
none to internal terminators. When drives have
differential I/O circuits a jumper on the right TP
position may be needed to power external terminator (see system documentation). The "WD"
drive has differential I/O circuits which have no
terminator circuits on the drive.
On On Drive supplies terminator power to itself (internal
connection) and to I/O pin 26 of SCSI bus. This
is a legal jumper setting.
TP Position A
On This horizontally positioned jumper across the
two TP positions nearest PCB edge, connects
terminator power from SCSI bus I/O pin 26 to the
drive's internal terminators (for single-ended I/O
only).
Off See above explanations for TP jumpers.
Hawk 1LP (Wide) Installation Guide, Rev. B 31
J1-Auxiliary and
J6 Jumper
Installation Jumper Function Description
A
3,A2,A1A0
* Drive ID on SCSI Bus. The drive ID is binary
coded positionwise i.e., jumper in position A
drive ID 8, in position A
ID 2 position A
Default is ID = 0.
is ID 1 and no jumpers is ID 0.
0
Either J1-auxiliary or J6 may be used to select
drive ID. Both should not be used at the same
time, because at some future time when the ID
is changed the user could fail to configure both
J1-auxiliary and J6 the same. Default is ID =
0.
On "WC" models the A3, A2, A1, A0 signals are
on J6 and in the 80 pin J1 connector. Both
should not be used to establish drive ID.
*See notes on page 27 and 28.
is ID 4, position A
2
is
3
is
1
32 Hawk 1LP (Wide) Installation Guide, Rev. B
continued from previous page
SSP* Used only as a cable connection for the refer-
ence index signal (REFIND+) (J6 Pin 6, bottom) for sync spindle feature. J6 pin 10 is GRD.
Installing a jumper between pins 5 and 6 will
cause an erroneous drive ID indication.
BUSY* Connection for optional external Drive Busy
indicator.
*See notes on page 27 and 28.
SSP and BUSY are also in the 80 pin J1 connector on "WC"
models.
Hawk 1LP (Wide) Installation Guide, Rev. B 33
Drive installation
This section describes the physical mounting of the
drive in the host cabinet and the logical installation as
a system member, which is called drive setup.
Disc drive mounting
Do not touch the connector pins or any PCB components without observing static-discharge precautions.
Always handle the drive by the frame only.
The drive may be mounted in any orientation.
• See notes in Figures 4 and 5 pertaining to proper
drive installation.
• Verify that all connections between the drive and the
host system are correctly installed. Most cables have
a contrasting color stripe indicating pin 1. Pin 1 on the
drive I/O connector and the DC power connector are
indicated in the figures in the Initial Set-up Information section.
• Verify option select, drive ID select jumpers and
terminator enable jumper where applicable. See Drive
Configuration section.
B
J
H
K
[2]
Notes:
[1]
[2]
[3]
[4]
Inches Millimeters
5.74
4.00
1.00
2.362
.620
4.000
.250
1.750
3.750
2.370
1.00
4.100
0.19
0.015
145.80
101.60
25.40
60.00
15.75
101.60
6.35
44.45
95.25
60.20
25.40
104.14
4.83
0.381
A
B
C
D
E
F
G
H
J
K
L
M
N
P
±
±
+
–
±
±
±
+
–
±
±
±
±
±
±
max
0.010
0.010
0.026
0.010
0.010
0.010
0.010
0.010
0.005
0.010
0.010
0.010
0.010
0.010
0.010
±
±
+
–
±
±
±
+
–
±
±
±
±
±
±
max
.25
.25
.66
.25
.25
.25
.25
.25
.12
.25
.25
.25
.25
.25
.25
M
N
[4]
P
Mounting holes three on each side, 6-32
UNC. Max screw length into side of drive
0.15 in. (3.81 mm). Screw tightening torque
6.0 in-lb (.675 NM) max with minimum
thread engagement of 0.12 in. (3.00 mm).
Mounting holes four on bottom, 6-32 UNC.
Max screw length into bottom of drive
0.20 in. (5.08 mm). Screw tightening torque
6.0 in-lb (.675 NM) max with minimum
thread engagement of 0.12 in. (3.00 mm).
Power and interface connections can
extend past the "A" dimension by
0.040 in. (1.02 mm).
Decorative front panel.
A
F
D
E
L
[1]
[3]
G
C
[4]
34 Hawk 1LP (Wide) Installation Guide, Rev. B
Figure 4. Hawk 1LP family W/WD model drive mount-
ing dimensions (68 pin SCSI I/O connector)
Hawk 1LP (Wide) Installation Guide, Rev. B 35
A
F
D
E
[1]
[3]
B
G
Inches
A
B
C
D
E
F
G
H
J
K
L
145.80
101.60
25.40
60.00
15.75
101.60
6.35
44.45
95.25
60.20
4.597
J
H
K
[2]
5.74
4.00
1.00
2.362
.620
4.000
.250
1.750
3.750
2.370
0.181
± .010
± .010
+ .026
– .010
± .010
± .010
± .010
+ .010
– .005
± .010
± .010
± .010
+ .018
– .013
± .25
± .25
+ .66
– .25
± .25
± .25
± .25
+ .25
– .12
± .25
± .25
± .25
+ .45
– .33
Millimeters
C
L
Connector Centerline
[4]
Pin 1
Notes:
[1]
[2]
[3]
[4]
Mounting holes three on each side, 6-32
UNC. Max screw length into side of drive
0.15 in. (3.81 mm). Screw tightening
torque 6.0 in-lb (.675 NM) max with
minimum thread engagement of 0.12 in.
(3.00 mm).
Mounting holes four on bottom, 6-32 UNC.
Max screw length into bottom of drive
0.20 in. (5.08 mm). Screw tightening torque
6.0 in-lb (.675 NM) max with minimum
thread engagement of 0.12 in. (3.00 mm).
Power and interface connections can
extend past the "A" dimension by
0.040 in. (1.02 mm).
Connector is centered on drive within
±0.020 in. (.508 mm).
Figure 5. Hawk 1LP family WC model mounting
configuration dimension (80 pin I/O
connector)
36 Hawk 1LP (Wide) Installation Guide, Rev. B
Do not power up the host system until the drive is
mounted and the system cover is replaced.
• Connect DC power connector to the drive ("W/WD"
models only).
• Replace the Host System cover.
• Turn on DC power.
• Boot the system from the floppy drive or from a
previously installed hard-drive if there is one.
• Proceed with drive setup of the new hard drive.
Grounding
Signal ground (PCB) and HDA ground are connected
together in the Hawk 1LP wide drives and cannot be
separated by the user. The equipment in which the
drive is mounted is connected directly to the HDA and
PCB with no electrically isolating shock mounts. If it is
desired for the system chassis to not be connected to
the HDA/PCB ground, the systems integrator or user
must provide a nonconductive (electrically isolating)
method of mounting the drive in the host equipment.
Hawk 1LP (Wide) Installation Guide, Rev. B 37
SCSI interface drives
The SCSI interface handles both drive geometry and
defect management internally. The "no drive installed"
option is selected for systems with SCSI drives.
All SCSI interface drives are low-level formatted at the
factory. You may wish to low-level format the drive to
optimize its performance for your system. Consult the
controller documentation for information on low-level
formatting. Partitioning and high-level formatting can
be done through DOS by way of the FDISK utility for
partitioning, and FORMAT for high-level formatting.
Consult your DOS manual for FORMAT and FDISK
command options.
Seagate Technology, Inc.
920 Disc Drive, Scotts Valley, CA. 95066-4544, USA
Publication Number: 77767468, Rev. B
Printed in USA
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