. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HAWK 2LP Family:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Wide bus)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST32430W/WD/WC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST32430DC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST31230W/WD/WC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST31230DC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Guide
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 2LP (wide) product information ................... 15
Initial setup information.........................................16
Drive configuration................................................ 22
Drive installation ...................................................33
© 1994 Seagate Technology, Inc. All rights reserved
Publication Number: 77767478, Revision A.
September 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 2LP (Wide) Installation Guide, Rev. A 1
Introduction
This manual is organized to assist you in the installation
and operation of your Seagate Hawk 2LP (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 2LP
(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 subassembly and
are not subject to Subpart J of Part 15 of the FCC Rules
2 Hawk 2LP (Wide) Installation Guide, Rev. A
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 2LP (Wide) Installation Guide, Rev. A 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 2LP (Wide) Installation Guide, Rev. A
• 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 2LP (Wide) Installation Guide, Rev. A 5
Caution. The circuit assemblies and components con-
tained 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 2LP (Wide) Installation Guide, Rev. A
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 (3.05 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 0805:1993 and EN60950:
1992 (IEC 950).
Note. Power must be off when connecting or discon-
necting.
Hawk 2LP (Wide) Installation Guide, Rev. A 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 (3.05 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 0805:1993 oder EN60950: 1992
(IEC 950).
Vorsicht
Ánsehluss oder Entfernung oler Geräteverbindung nur
bei abgeschalteter Versorgungsspannung vornehmen.
8 Hawk 2LP (Wide) Installation Guide, Rev. A
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/DC" 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 2LP (Wide) Installation Guide, Rev. A 9
• Low-Level formatting: All Hawk 2LP 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 subdivided 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 2LP (Wide) Installation Guide, Rev. A
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 2LP (Wide) Installation Guide, Rev. A 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 2LP (Wide) Installation Guide, Rev. A
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 2LP (Wide) Installation Guide, Rev. A 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. Modem
required. (300-9600 baud, 8-N-1). This is a toll call.
14 Hawk 2LP (Wide) Installation Guide, Rev. A
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 2LP (Wide) Installation Guide, Rev. A 15
Hawk 2LP 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
ST32430W 2.59 GB 2.14 GB 3992 9 .70 .38
ST32430WD 2.59 GB 2.14 GB 3992 9 .90 .40
ST32430WC 2.59 GB 2.14 GB 3992 9 .70 .38
ST32430DC 2.59 GB 2.14 GB 3992 9 .90 .40
ST31230W 1.28 GB 1.06 GB 3992 5 .70 .38
ST31230WD 1.28 GB 1.06 GB 3992 5 .90 .40
ST31230WC 1.28 GB 1.06 GB 3992 5 .70 .38
ST31230DC 1.28 GB 1.06 GB 3992 5 .90 .40
"Wide" family products have a 16 bit SCSI data bus rather
than the normal 8 bit data bus. However, they can operate on
an 8 bit data bus.
Notes.
[1] Standard units are factory formatted with 512 data bytes
per sector with eight spare sectors 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 2LP (Wide) Installation Guide, Rev. A
Initial setup 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 2LP family "W" models only).
These procedures are described in paragraphs following. Note whether drive model number ends in W, WD,
WC or DC.
SCSI interface cable connection
The Hawk 2LP 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" and "DC" models is via an 80 pin SCSI and DC
power connector. The "WC" and "DC" models plug
directly into a PCB or bulkhead mounted mating 80 pin
connector. "WC" and "DC" drives should not be connected to the host via a cable/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 2LP 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.
Hawk 2LP (Wide) Installation Guide, Rev. A 17
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
DC Power connection
Hawk 2LP 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 2LP "WC" and "DC" model drives receive power
from the host computer through the 80 pin combined
SCSI I/O and power connector. No separate DC power
connector is provided on the "WC" and "DC" drives
(See Figure 2b).
18 Hawk 2LP (Wide) Installation Guide, Rev. A
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. ID7 has the highest priority during bus arbitration
(on both 8 and 16 device systems). Bus arbitration
priority decreases to ID0, then ID15 down to ID8. ID8 is
the very lowest priority. Typically the primary boot
device is set to ID 0, the host is ID7 and the subsequent
SCSI drives are jumpered as appropriate for the particular system involved.
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" and "DC" model drives the SCSI ID can be
and presumably 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" and "DC" 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 2LP (Wide) Installation Guide, Rev. A 19
Terminator resistor packs
As a factory installed option, Hawk 2LP 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.
Model numbers that end in "WD" and "DC" have
differential I/O circuits. 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 2LP
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.
Do not mix "W" and "WD" or "WC" and "DC" model
drives on the same I/O bus.
20 Hawk 2LP (Wide) Installation Guide, Rev. A
Read/Write head auto-park
Seagate disc drives described herein 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.
Hawk 2LP (Wide) Installation Guide, Rev. A 21
68 Pin
SCSI I/O
Connector
J6
J2
J1-Auxiliary
Pin 1A
J1-DC Power
Pin 1P
J1 Pin 1
80 Pin SCSI I/O
and Power
Connector
J6
J2
Pin 1
Figure 2a. Hawk 2LP family W/WD models I/O
connection (68 pin SCSI I/O connector).
"W" model terminators (not visible) are not
removable.
Figure 2b.Hawk 2LP family WC/DC model drive
physical interface (80 pin SCSI I/O and DC
power connector). Terminators are not
provided.
22 Hawk 2LP (Wide) Installation Guide, Rev. A
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 "Initial setup
information" and 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 2LP family "W/WD"
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.
drives
either J6 (on the
Hawk 2LP (Wide) Installation Guide, Rev. A 23
Hawk 2LP family "WC" and "DC" model 80 pin SCSI
I/O drives
On Hawk 2LP family "WC" and "DC" model drives there
is no J1-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 the external drive
activity LED indicator signal. The alternate use of J6 is
described in the notes following Figure 3c.
24 Hawk 2LP (Wide) Installation Guide, Rev. A
Drive with HDA up,
PCB down, viewed
from front
Pin 1
HDA
J6 [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
Reserved
J1-DC Power
Connector
J2
Drive Front
Pin 1
End
J6
SCSI I/O
Connector
J1-SCSI I/O
Pin 1
J2
A2A
1
J1-Auxiliary
A
0
See
Figure
3b
[3]
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
Enable
Terminator
TEDSMEWPPESSTPT
P
[6]
[5]
[5]
[8]
[5]
SCSI ID = 8
SCSI ID = 9
SCSI ID = 10
SCSI ID = 11
SCSI ID = 12
SCSI ID = 13
SCSI ID = 14
SCSI ID = 15
Shipped with cover installed.
Do not install jumpers; retain cover
unless 20 pin plug is installed.
11 9 7 5 3 1
Remote LED
[4]
Optional connections to switching circuits
in host equipment to establish drive ID.
Pins 2, 4, 6 and 8 are driven low for
250 ms after PWR ON and reset to
allow jumper selectable SCSI ID.
Dashed area is optional host circuitry (external to the drive)
connected to host supplied optional usage plug. Drive PCB
circuitry for Pin 8 includes a 150 Ω series resistor.
Do not connect anything to pins 13-20.
+5V
Host
Alternate
Usage Plug:
Reserved
Pins
8 6 4 2
Ground
[4]
[4]
A
3
Figure 3a. Drive configurator Hawk 2LP family
W/WD model
Hawk 2LP (Wide) Installation Guide, Rev. A 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
[3]
4P 3P 2P 1P
PCB
Pin 1
+5V
Ground
11 9 7 5 3 1
[4]
Host Alternate
Usage Plug:
Ground
8 6 4 2
Optional connections to switching circuits in host
equipment to establish drive ID. Pins 2, 4, 6, and
8 are driven low for 250 ms after PWR ON and
reset to allow jumper selectable SCSI ID. [4]
Dashed area is optional host circuitry (external to the drive)
connected to host supplied optional usage plug. Drive PCB
circuitry for Pin 8 includes a 150 Ω series resistor.
[4]
Remote LED
+5V
Figure 3b. Drive configurator Hawk 2LP family
W/WD models
J1
Delay
Motor Start
Enable
Motor Start
Write Protect
Parity Option
Jumper
Positions
TEDSMEWPPESSTPT
P
[8][8]
Pin 1
HDA
Drive with HDA up,
PCB down, viewed from front
J6
[1]
+5V
Ground
SCSI ID = 0
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
SCSI ID = 7
Reserved
A2A1A
0
[7]
SCSI ID = 8
SCSI ID = 9
SCSI ID = 10
SCSI ID = 11
SCSI ID = 12
SCSI ID = 13
SCSI ID = 14
SCSI ID = 15
Shipped with cover installed.
Do not install jumpers; retain cover
unless 20 pin plug is installed.
11 9 7 5 3 1
Remote LED
[4]
Optional connections to switching circuits in host
equipment to establish drive ID. Pins 2, 4, 6 and
8 are driven low for 250 ms after PWR ON and
reset to allow jumper selectable SCSI ID.
Dashed area is optional host circuitry (external to the drive)
connected to host supplied optional usage plug. Drive PCB
circuitry for Pin 8 includes a 150 Ω series resistor.
Do not connect anything to pins 13-20.
+5V
Host Alternate
Usage Plug:
Reserved
Pins
8 6 4 2
Ground
[4]
A
3
26 Hawk 2LP (Wide) Installation Guide, Rev. A
Pin 1
End
J6
Drive Front
J2
J2
Figure 3c. Drive configurator for Hawk 2LP family
WC/DC models
Pin 1
Hawk 2LP (Wide) Installation Guide, Rev. A 27
Notes for Figure 3a, 3b and 3c:
[1] Notes explaining the functions of the various jump-
ers 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" and "DC" 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 68 pin SCSI I/O, 12 pin
auxiliary, 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 remote BUSY
LED signal. Do not use J2 and J6 for these four
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 and
3b 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 2LP (Wide) Installation Guide, Rev. A
[4] The drive time-shares the ID and BUSY LED func-
tions of J6 and J1-auxiliary. That is, a cable may be
attached to one of these headers to pick up the
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
function the remainder of the time.
[5] "W" models only.
[6] "W/WD" models only.
[7] "WC/DC" 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/DC" models. Do not install jump-
ers.
J2
Jumper
Position Jumper Function Description
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
installed.
Off Terminator circuits not connected to I/O lines.
Hawk 2LP (Wide) Installation Guide, Rev. A 29
continued from previous page
DS ME
Off Off Spindle starts immediately after power up -
Default setting.
Off On Drive spindle does not start until Start Unit
command received from host.
On Off Spindle Start-up 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 com-
mand 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 check-
ing to host.
30 Hawk 2LP (Wide) Installation Guide, Rev. A
continued from previous page
SS
Off On Reserved. Default is no jumper installed.
TP TP (Not applicable to "WC/DC" model drives)
Off Off No terminator power is connected to drive
terminators 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. The "WC/DC" Model drives
have no provisions for terminators on the
drive and no provisions for terminator power
on the 80 pin I/O connector.
On On Drive supplies terminator power to itself (in-
ternal connection) and to I/O pin 26 of SCSI
bus. This is a legal jumper setting.
Off See above explanations for TP jumpers.
TP Position A
On This horizontally positioned jumper across
the two TP positions nearest PCB edge,
connects terminator power from SCSI bus
Hawk 2LP (Wide) Installation Guide, Rev. A 31
continued from previous page
I/O pin 26 to the drive's internal terminators (for single-ended I/O only).
Off See above explanations for TP jump
ers.
J1-Auxiliary
Jumper Jumper Function Description ("W"
Installation and "WD" models only)
A3,A2,A1,A0Drive ID on SCSI Bus (J1-auxiliary or J6
may be used, as the ID circuits are wired
in parallel). The drive ID is binary coded
positionwise i.e. jumper in position A3 is
drive ID 8, A2 is drive ID 4, position A1 is
ID 2, position A0 is ID 1 and no jumpers
is ID 0. Default is ID = 0. Both J1-
auxiliary and J6 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. "WC" and "DC" Models, do not have J1-auxiliary.
J6 Jumper Jumper Function Description ("W"
Installation and "WD" models only)
A3,A2,A1,A0Drive ID on SCSI bus. Either J6 or J1-
Auxiliary (optional) may be used to
select drive ID. Both should not be used
at the same time, because at some
32 Hawk 2LP (Wide) Installation Guide, Rev. A
continued from previous page
future time when the ID is changed the
user could fail to configure both the
same. Default is ID = 0.
For "WC" and "DC" models refer to Note
[7].
Models "W" and "WD" only
BUSY These pins used to connect a cable for a
LED remote BUSY LED indicator. J6 Pin 11
(top, nearest HDA), or J1-Aux Pin 11 the
anode connection, connects in the drive to
the +5V supply. J6 Pin 8 (bottom), or J1Aux Pin 8, the cathode connection, connects in the drive to signal common through
the emitter-collector junction of a transistor switch and 150 ohm series resistor that
controls the LED on/off condition.
Model "WC/DC" only
BUSY Time shared (see Note [4]) pins used to
LED connect a cable for a remote BUSY LED
indicator. Pin 4 (bottom), the cathode connection connects in the drive to GRD
through the emitter-collector junction of a
transistor switch and 150 ohm series resistor that controls the LED on/off condition. LED signal in J1 may be used in-
stead. See Note [2].
Hawk 2LP (Wide) Installation Guide, Rev. A 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 Setup Information
section.
• Verify option select, drive ID select jumpers and
terminator enable jumper where applicable. See Drive
Configuration section.
34 Hawk 2LP (Wide) Installation Guide, Rev. A
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
4.000
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
101.60
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. (3.05 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. (3.05 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]
Figure 4. Hawk 2LP family W/WD model drive mount-
ing dimensions (68 pin SCSI I/O connector)
Hawk 2LP (Wide) Installation Guide, Rev. A 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.
(3.05 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. (3.05 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 2LP family WC and DC model mounting
configuration dimension (80 pin I/O connector)
36 Hawk 2LP (Wide) Installation Guide, Rev. A
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 2LP 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 2LP (Wide) Installation Guide, Rev. A 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: 77767478, Rev. A
Printed in USA
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