Seagate MEDALIST 2160WC, MEDALIST PRO2160N User Manual

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Medalist Pro Family

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Medalist 2160N (ST52160N)

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Medalist 2160WC (ST52160WC)

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SCSI Interface Drives

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Product Manual

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Medalist Pro Family

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Medalist 2160N (ST52160N)

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Medalist 2160WC (ST52160WC)

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SCSI Interface Drives

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Product Manual

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2	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A

© 1996 Seagate Technology, Inc. All rights reserved

Publication Number: 32650-001, Rev. A, December 1996

Seagate, Seagate Technology, the Seagate logo and Medalist are registered trademarks of Seagate Technology, Inc. Other product names are trademarks or registered trademarks of their owners.

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 from Seagate Technology, Inc.

Medalist Pro 2160N/ 2160WC Product Manual, Rev. A iii

Contents

Introduction . . . . . . . . . .	. . . . . . . . . . . . . . . .	. .	.	1
Specifications summary table	. . . . . . . . . . . . . . . .	. .	.	3

1.0 Specifications summary . . . . . . . . . . . . . . . . . . . . . 5

1.1	Formatted capacity . . . . . . . . . . . . . . . . . . . . . .	5
1.2	Physical geometry . . . . . . . . . . . . . . . . . . . . . . . 5
1.3	Functional specifications . . . . . . . . . . . . . . . . . . .	5
1.4	Physical dimensions . . . . . . . . . . . . . . . . . . . . . . 6
1.5	Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
1.6	Read look-ahead and caching . . . . . . . . . . . . . . . . 7
1.7	Start/stop command . . . . . . . . . . . . . . . . . . . . . . 7
1.7.1 Power-up sequence . . . . . . . . . . . . . . . . . . .		7

1.7.2Power-down sequence . . . . . . . . . . . . . . . . . . 8

1.7.3Auto-park . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.8Power management . . . . . . . . . . . . . . . . . . . . . . 8

1.8.1Power consumption . . . . . . . . . . . . . . . . . . . . 9

1.8.2Voltage tolerance . . . . . . . . . . . . . . . . . . . . . 9

1.8.3	Input noise . . . . . . . . . . . . . . . . . . . . . . .	10
1.9 Environmental . . . . . . . . . . . . . . . . . . . . . . . .		10
1.9.1	Ambient temperature (HDA case) . . . . . . . . . . .	10

1.9.2Temperature gradient . . . . . . . . . . . . . . . . . . 10

1.9.3Altitude . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.9.4Relative humidity . . . . . . . . . . . . . . . . . . . . 11

1.10 Shock and vibration . . . . . . . . . . . . . . . . . . . . 11

1.11Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.12Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.13Agency listings . . . . . . . . . . . . . . . . . . . . . . . 12

1.14Electromagnetic Compliance for the European Union . . . 13

1.15 FCC verification . . . . . . . . . . . . . . . . . . . . . .	13
2.0 Hardware and interface . . . . . . . . . . . . . . . . . . . .	17

iv	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A
2.1	SCSI-3 compatibility . . . . . . . . . . . . . . . . . . . . .	17
2.2	Handling and static-discharge precautions . . . . . . . . .	17

2.3Electrical interface . . . . . . . . . . . . . . . . . . . . . . 18

2.4Interface and connector configuration . . . . . . . . . . . . 19

2.5	ST52160N interface connector . . . . . . . . . . . . . . .		20
2.5.1		ST52160N interface pin assignments . . . . . . . . .	21
2.5.2 ST52160WC interface connector . . . . . . . . . . . .			22
2.5.3		ST52160WC interface pin assignments . . . . . . . .	22
2.6	Interface cable requirements . . . . . . . . . . . . . . . .		25
2.6.1		Interface cable length for asynchronous operation . . .	25
2.6.2		Interface cable for Fast SCSI operation . . . . . . . .	25
2.6.3		Interface cable for UltraSCSI operation . . . . . . . .	25
2.7	Options jumper block . . . . . . . . . . . . . . . . . . . .		26

2.7.1SCSI address . . . . . . . . . . . . . . . . . . . . . . 26

2.8Active Termination . . . . . . . . . . . . . . . . . . . . . . 29

2.9Parity enable option . . . . . . . . . . . . . . . . . . . . . 29

2.9.1Motor Start option . . . . . . . . . . . . . . . . . . . . 29

2.9.2 Remote LED connection . . . . . . . . . . . . . . . .	29
2.10 Daisy chaining . . . . . . . . . . . . . . . . . . . . . . .	29

2.11Hot-plugging . . . . . . . . . . . . . . . . . . . . . . . . 30

2.12Mounting the drive . . . . . . . . . . . . . . . . . . . . . 30

3.0 Command set . . . . . . . . . . . . . . . . . . . . . . . . .		35
3.1	Command descriptor block . . . . . . . . . . . . . . . . .	35
3.2	Status byte . . . . . . . . . . . . . . . . . . . . . . . . .	35

3.3Supported commands . . . . . . . . . . . . . . . . . . . . 36

3.4Group 0 commands . . . . . . . . . . . . . . . . . . . . . 37

3.4.1Test Unit Ready command (00H) . . . . . . . . . . . . 37

3.4.2Rezero Unit command (01H) . . . . . . . . . . . . . . 38

3.4.3	Request Sense command (03H)	. . . . . . . . . . . .	38
3.4.4	Format Unit command (04H) . .	. . . . . . . . . . . .	39
3.4.5	Reassign Blocks command (07H)	. . . . . . . . . . .	43

Medalist Pro 2160N/ 2160WC Product Manual, Rev. A	v

3.4.6Read (6) command (08H) . . . . . . . . . . . . . . . . 45

3.4.7Write (6) command (0AH) . . . . . . . . . . . . . . . . 46

3.4.8Seek (6) command (0BH) . . . . . . . . . . . . . . . . 47

3.4.9Inquiry command (12H) . . . . . . . . . . . . . . . . . 47

3.4.10	Mode Select (6) command (15H) . . . . . . . . . . .	48
3.4.11	Reserve (6) command (16H) . . . . . . . . . . . . .	51
3.4.12	Release (6) command (17H) . . . . . . . . . . . . .	52

3.4.13Mode Sense (6) command (1AH) . . . . . . . . . . . 53

3.4.14Start/Stop Unit command (1BH) . . . . . . . . . . . . 56

3.4.15Receive Diagnostic Results command (1CH) . . . . . 57

3.4.16	Supported Diagnostic Pages . . . . . . . . . . . . .	58
3.4.17	Translate Address Page . . . . . . . . . . . . . . .	59

3.4.18Send Diagnostic command (1DH) . . . . . . . . . . . 61

3.5Supported Diagnostics Page—Send Diagnostics . . . . . . 62

3.6Translate Address Page—Send Diagnostic . . . . . . . . . 62

3.6.1 Read Capacity command (25H) . . . . . . . . . . . . 63

3.6.2Read (10) command (28H) . . . . . . . . . . . . . . . 64

3.6.3Write (10) command (2AH) . . . . . . . . . . . . . . . 65

3.6.4Seek (10) command (2BH) . . . . . . . . . . . . . . . 66

3.6.5Write and Verify command (2EH) . . . . . . . . . . . . 67

3.6.6 Verify command (2FH) . . . . . . . . . . . . . . . . . 68

3.6.7Read Defect Data command (37H) . . . . . . . . . . . 68

3.6.8Write Data Buffer command (3BH) . . . . . . . . . . . 70

3.6.9Read Data Buffer command (3CH) . . . . . . . . . . . 72

3.6.10Read Long command (3EH) . . . . . . . . . . . . . . 74

3.6.11Write Long command (3FH) . . . . . . . . . . . . . . 74

3.7Group 2 commands . . . . . . . . . . . . . . . . . . . . . 75

3.7.1 Log Select command (4CH) . . . . . . . . . . . . . . 75

3.8Log Sense command (4DH) . . . . . . . . . . . . . . . . . 82

3.9Reserve (10) command (56H) . . . . . . . . . . . . . . . . 83

3.10 Release (10) command (57H) . . . . . . . . . . . . . . . 84

vi	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A

3.11Group 3 and 4 commands . . . . . . . . . . . . . . . . . 85

3.12Group 5 and 6 commands . . . . . . . . . . . . . . . . . 85

3.13 Group 7 commands . . . . . . . . . . . . . . . . . . . . 85

Appendix A. Supported messages . . . . . . . . . . . . . . . . 87

A.1 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 87 A.2 Synchronous Data Transfer Request message (01H) . . . . 88 A.2.1 Wide Data Transfer Request Message . . . . . . . . . 89

Appendix B. Sense data . . . . . . . . . . . . . . . . . . . . . . 91

B.1 Additional sense data . . . . . . . . . . . . . . . . . . . .			91
B.2 Sense key . . . . . . . . . . . . . . . . . . . . . . . . . .			93
B.3	Additional sense code and additional sense code qualifier .		94
Appendix C. Mode pages . . . . . . . . . . . . . . . . . . . . .			97
C.1	Read-Write Error Recovery page (01H) . . . . . . . . . .		98
C.2	Disconnect/Reconnect page (02H) . . . . . . . . . . . .		100
C.3	Format Device page (03H) . . . . . . . . . . . . . . . .		102
C.4	Rigid Disc Geometry page (04H) . . . . . . . . . . . . .		104
C.5	Verify error recovery page (07H) . . . . . . . . . . . . .		107
C.6	Caching page (08H) . . . . . . . . . . . . . . . . . . . .		108
C.6.1		Read look-ahead and caching . . . . . . . . . . . .	108
C.6.2		Write caching and write merging . . . . . . . . . . .	109
C.6.3		Caching page description . . . . . . . . . . . . . .	110
C.7	Control Mode page (0AH) . . . . . . . . . . . . . . . . .		113
C.7.1		Unit Attention Parameters (00H) . . . . . . . . . . .	114
Appendix D. Inquiry data . . . . . . . . . . . . . . . . . . . .			117
D.1	Inquiry data . . . . . . . . . . . . . . . . . . . . . . . .		117
D.2	Vital product data pages . . . . . . . . . . . . . . . . .		120
D.2.1		Unit Serial Number page (80H) . . . . . . . . . . . .	121
D.2.2		Implemented Operating Definition page (81H) . . . .	121
D.2.3		Firmware Numbers page (C0H) . . . . . . . . . . .	122
D.2.4 Date Code page (C1H) . . . . . . . . . . . . . . . .			123
D.2.5		Jumper Settings page (C2H) . . . . . . . . . . . . .	123

Medalist Pro 2160N/ 2160WC Product Manual, Rev. A vii

Figures

Figure 1. Typical startup current profile . . . . . . . . . . . . . . . . 7

Figure 2.	Single-ended transmitter and receiver . . . . . . . . . .	.18
Figure 3. Connectors . . . . . . . . . . . . . . . . . . . . . . . .		19
Figure 4. ST52160N jumper settings . . . . . . . . . . . . . . . .		27
Figure 5.	ST52160WC jumper settings . . . . . . . . . . . . . . .	28
Figure 6.	ST52160N Mounting dimensions . . . . . . . . . . . . .	32
Figure 7.	ST52160WC Mounting dimensions . . . . . . . . . . .	33

Medalist Pro 2160N/ 2160WC Product Manual, Rev. A	1

Introduction

This manual describes the functional, mechanical and interface specifications for the Medalistâ Pro 2160N and Medalist Pro 2160WC SCSI hard disc drives. The Medalist Pro 2160N is referred to in this manual by its model number ST52160N. This drive comes with the standard 50-pin interface connector. The Medalist Pro 2160WC is referred to in this manual by its model number ST52160WC. This drive comes with the 80-pin blindmate single-connector attachment (SCA-2).

Seagate desktop products take a step into the future with the ST52160N and ST52160WC. These drives feature MR heads and PRML recording technology.

The Medalist Pro drives uses an UltraSCSI interface. The ST52160N supports a synchronous external transfer rate of up to 20 Mbytes per second. The ST52160WC supports a synchronous external transfer rate of up to 40 Mbytes per second.

These drives have other features that ensure fast data throughput. The ST52160N uses a 128-Kbyte buffer. The ST52160WC uses a 256-Kbyte buffer. The adaptable cache aids the flow of read and write data. Embedded servo technology allows the drives to position the heads for data retrieval efficiently and accurately while eliminating the periodic thermal recalibration that can interrupt during data transfers. These drives also use a 16-bit microprocessor and an intelligent controller that provides data streaming: direct data transfers between the drive and the host without microprocessor intervention. This feature allows for a sustained data rate that facilitates video playback and other multimedia operations.

The drives conform to the standard 3.5-inch footprint but have a 0.75-inch (19 mm) height profile and a 5.380-inch depth profile. The lower height and shorter depth gives the designer or integrator more room for air circulation, other peripherals or a smaller drive bay.

The SCSI commands the drives support are listed in Section 3.3. on page 36.

2 Medalist Pro 2160N/ 2160WC Product Manual, Rev. A

The following is a summary of the drives’ features:

Capacity

∙ 2.17 Gbytes, guaranteed

Features

∙SCSI-3 SPI and SCAM Plug and Play compliant

∙8-bit and 16-bit UltraSCSI

∙Transfer rates up to 20 Mbytes and 40 Mbytes per second

∙11-msec average seek time

∙5,379-RPM rotational speed

∙5.56 average latency

∙128-Kbyte1and 256-Kbyte2 buffer

∙Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.)

∙Rotational-position seek/sort

∙On-the-fly ECC correction

∙Embedded servo

∙PRML channel

∙MR heads

Acoustics

∙3.4-bel idle sound power level

∙27-dBA idle sound pressure level

Mini 3.5-inch form-factor

∙19-mm-height profile

∙Fits standard 3.5-inch footprint

1.ST52160N

2.ST52160WC

Medalist Pro 2160N/ 2160WC Product Manual, Rev. A	3

Specifications summary table

The following table serves as a quick reference for the drives’ performance specifications. These and other specifications are discussed in the Specifications summary section following the table.

Drive specification	ST52160N	ST52160WC
Guaranteed capacity (Gbytes, 109 )	2.17	2.17
Guaranteed sectors	4,238,282	4,238,282
Bytes per sector	512	512
Sectors per track (average)	161	161
Physical cylinders	6,536	6,536
Physical read/write heads	4	4
Discs	2	2
Recording density (bits per inch, max)	122,369	122,369
Track density (tracks per inch)	6,731	6,731
Spindle speed (RPM)	5,397 ± 0.5%	5,397 ± 0.5%
Internal data-transfer rate	56.3 to 99.6 MHz	56.3 to 99.6 MHz
(Mbits per second max)
External transfer rate	10.0 asynchronus	20.0 asynchronus
(Mbytes per second, max)	20.0 synchronous	40.0 synchronous
Cache buffer (Kbytes)	128	256
Height, inches max (mm)	0.748 (19.0)	0.748 (19.0)
Width, inches max (mm)	4.01 (101.8)	4.01 (101.8)
Depth, inches max (mm)	5.38 (136.6)	5.38 (136.6)
Typical weight, lb. (Kg)	1.0 (0.45)	1.0. (0.45)
Track-to-track seek time (msec, typical)	3.5	3.5
Average seek time (msec, typical)	11.0	11.0
Average seek time read (msec, typical)	12.0	12.0
Average seek time write (msec, typical)	13.0	13.0
Full-stroke seek time (msec, typical)	25.0	25.0
Average latency (msec)	5.56	5.56
Power-on to ready (sec, typical)	20	20
Spinup current: +12V (max)	1.18A	1.18A
Seek power (typical)	6.4W	6.4W

4	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A
Drive specification			ST52160N	ST52160WC
Read/Write power (typical)			6.3W	6.3W
Idle power (typical)			6.2W	6.2W
Voltage tolerance (including noise): +5V			± 5%	± 5%
Voltage tolerance (including noise): +12V			± 5%	± 5%
Ambient temperature, operating (C°)			5° to 55°C	5° to 55°C
Temperature gradient, operating
(°C per hour max)			20°C	20°C
Relative	humidity,operating	gradient
(max)			10% per hr.	10% per hr.
Relative humidity, operating			8% to 80%	8% to 80%
Wet bulb temperature
operating (noncondensing)			29.4°C	29.4°C
Altitude, operating			–1,000 to	–1,000 to
			10,000 ft.	10,000 ft.
Shock, normal operating
(Gs max for 11 msec)			2 Gs	2 Gs
Vibration, operating
(Gs max at 22–350 Hz		without	0.75 Gs	0.75 Gs
nonrecoverable errors)			0 to Peak	0 to Peak
Vibration, nonoperating
(Gs max at 22–350 Hz with no physical			4 Gs	4 Gs
damage incurred)			0 to Peak	0 to Peak
Nonrecoverable read errors			1 per 1013	1 per 1013
(bits transferred)
Mean time between failures (MTBF)			500,000	500,000
(power-on hours)
Contact start-stop cycles			50,000	50,000
Service life (years)			5	5

Medalist Pro 2160N/ 2160WC Product Manual, Rev. A	5

1.0Specifications summary

1.1Formatted capacity

The capacities specified here do not include spare sectors and cylinders. The media contains 2,000 spare blocks at the end of the volume.

Guaranteed capacity (Gbytes3)	2.17
Guaranteed sectors	4,238,282

1.2Physical geometry

Discs	2
Read/write heads	4
Cylinders	6,536
Sectors per track (average)	161

1.3Functional specifications

Interface	SCSI-3 SPI Compliant
PRML recording method	Code (0,4,4)
External data-transfer rate	10 asynchronous4
(Mbytes per sec, max)	20 synchronous4
	20 asynchronous5
	40 synchronous5
Internal data-transfer rate	56.3 - 99.6 MHz
(Mbits per sec)
Bytes per sector	512
Data zones	19
Areal density (Mbits/ in2)	823.7
Track density (TPI)	6,731
Recording density (BPI, max)	122,369

3.One Gbyte equals 1,000,000,000 bytes.

4.ST52160N

5.ST52160WC

6	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A

1.4Physical dimensions

Height (max)	0.748 inches (19 mm)
Width (max)	4.01 inches (101.8 mm)
Depth (max)	5.38 inches (136.6 mm)
Weight (max)	1.0 lb. (0.45 Kg)

1.5Seek time

All seek time measurements are taken under nominal conditions of temperature and voltage with the drive mounted horizontally. In the following table:

∙Track-to-track seek time is the average of all possible single-track seeks in both directions.

∙Average/typical seek time is a true statistical random average of at least 5,000 measurements of seeks in both directions between random cylinders, less overhead.

∙Full-stroke seek time is one-half the time needed to seek from logical block address zero (LBA 0) to the maximum LBA and back to LBA 0.

Track-to-track	Average/typical	Full-stroke	Average
seek time typ6	seek time7	seek time typ8	latency
3.5 msec typ	11.0 msec typ	25.0 msec typ	5.56 msec
4.5 msec max	12.0 msec read	27.0 msec max
	13.0 msec write

Note. Host overhead varies between systems and cannot be specified. Drive internal overhead is measured by issuing a no-motion seek. Drive overhead is typically less than 1.0 msec.

____________________

6.All possible onetrack seeks are divided into the time required to perform these seeks. Only the mechanism time is used; interface overhead is excluded.

7.All possible seeks are divided into the time required to perform these seeks. Only the mechanism time is used; interface overhead is excluded.

8.The average of 1,000 full-stroke seeks is used in this computation. Only the mechanism time is used; interface overhead is excluded.

Medalist Pro 2160N/ 2160WC Product Manual, Rev. A	7

1.6Read look-ahead and caching

The drives use algorithims that improve seek performance by storing data in a buffer and processing it at a more convenient time. Three methods are used: read look-ahead, read caching and write caching. These are described in Appendix C.6 on page 108.

1.7Start/stop command

If the motor-start option is disabled, the drive is ready within 20 seconds after power is applied. If the motor-start option is enabled, the drive is ready within 20 seconds after it receives the Motor Start command. If the drive receives a command to spin down or power is removed, the drive stops within 15 seconds.

Current (mA)

1,200

1,000

800

600

400

200

2

4

6

8

10

12

14

16

Time (seconds)

Figure 1. Typical startup current profile

1.7.1Power-up sequence

The following typical power-up sequence is provided to assist you in evaluating drive performance. This information does not constitute a specification or a performance guarantee.

1.Power is applied to the disc drive.

2.Depending on whether there is a jumper installed on pins 9 and 10 of the options jumper block (J5) shown in Figure 3 on page 19, either of the following sequences occurs:

∙If a jumper is not installed, the remote start option is not enabled, and the drive begins to spin up as soon as power is applied.

∙If a jumper is installed, the remote start option is enabled, and the drive begins to spin up when the host sends a command for the motor to start.

8	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A

3.Within 250 msec after power is applied, the drive responds to the Test Unit Ready, Request Sense, Mode Sense and Inquiry commands.

4.The drive begins to lock in speed-control circuits.

6.The actuator lock releases the actuator.

7.The spindle motor reaches operating speed in about 5 seconds. After 5 seconds, there are no speed variations.

8.The drive performs velocity-adjustment seeks.

9.The drive seeks track 0 and is then ready.

1.7.2Power-down sequence

Caution. Do not move the drive until the motor has come to a complete stop.

1.The power is turned off.

2.Within 15 seconds, the drive spindle stops rotating.

3.The read/write heads automatically move to the landing zone, which is inside the maximum data cylinder.

4.The magnetic acuator lock mechanism locks the arm. This completes the power-down sequence.

1.7.3Auto-park

During power-down, the read/write heads automatically move to the landing zone. The heads park inside the maximum data cylinder and the magnetic actuator lock engages. When power is applied, the heads recalibrate to track 0.

1.8Power management

The drive supports power-management modes that reduce its overall power consumption. They automatically change from one mode to another in response to interface activity. You do not need to change any parameters or send any special commands to make the drive change modes. The power-management modes are described as follows:

∙Spinup. Spinup is defined as the period during which the spindle is coming up to operating speed. The power consumed in this mode is equivalent to the average power during the first 10 seconds after the drive begins to spin up.

Medalist Pro 2160N/ 2160WC Product Manual, Rev. A	9

∙Seek. The servo electronics are active, and the heads are moving to a specific location on the disc. The read/write electronics are powereddown. The power consumed in this mode is equivalent to the average power measured while executing random seeks with a 2-revolution (26.6 msec) dwell between seeks. The drive enters this mode from the Idle mode.

∙Read/Write. The drive is reading or writing. All electronics are active and the heads are on track.

∙Idle. The motor is up to speed and the drive is in track-follow mode.

1.8.1Power consumption

Values in the table below were measured at the drive power connector with an RMS DC ammeter. The terminating resistors are disabled, and terminator power is supplied through the SCSI connector. All values are measured 10 minutes after the drive spins up except as noted.

	Spinup	Seeking	Read/	Idle	Standby
			Write
Current at +12V
Amps peak	1.18	—	—	—	—
RMS amps typ	—	0.287	0.274	0.274	0.020
Watts typ	—	3.444	3.288	3.288	0.240
Current at +12V
RMS amps typ	—	0.596	.0.590	0.581	0.625
Watts typ	—	2.980	2.950	2.905	3.125
Power
Total watts typ	—	6.424W	6.238W	6.193W	3.365W

1.8.2Voltage tolerance

	+5V	+12V
Voltage tolerance	± 5%	± 5%
(including noise)

10	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A

1.8.3Input noise

	+5V	+12V
Voltage tolerance	± 5%	± 5%
(including noise)
Input noise frequency	25 MHz	25 MHz
(max)
Input noise	100 mV	240 mV
(max, peak-to-peak)

1.9Environmental

This section specifies acceptable environmental conditions for the drives. The operating specifications assume that the drive is powered up. The nonoperating specifications assume that the drive is packaged as it was shipped from the factory.

1.9.1Ambient temperature (HDA case)

Operating	5°C to 55°C (41°F to 131°F)
Nonoperating	–40°C to 70°C (–40°F to 158°F)

Note. The system must provide sufficient airflow so that the aluminum base surface temperature remains below 55°C.

1.9.2Temperature gradient

Operating	20°C per hour (36°F per hour)
Nonoperating	30°C per hour (54°F per hour)

1.9.3Altitude

Operating	–1,000 ft. to 10,000 ft. (–305 m to 3,048 m)
Nonoperating	–1,000 ft. to 40,000 ft. (–305 m to 12,192 m)

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1.9.4Relative humidity

Operating	8% to 80% noncondensing
	Maximum wet bulb 29.4°C (84.9°F)
Operating gradient, max	10% per hour
Nonoperating	5% to 95% noncondensing
	Maximum wet bulb 35°C (95.0°F)

1.10 Shock and vibration

All shock and vibration specifications assume that the inputs are measured at the drive mounting screws. Shock measurements are based on an 11-msec, half sine wave shock pulse, not to be repeated more than twice per second.

During normal operating shock and vibration, there is no physical damage to the drive or performance degradation.

During abnormal operating shock and vibration, there is no physical damage to the drive, although performance may be degraded during the shock or vibration episode. When normal operating shock levels resume, the drive meets its performance specifications.

During nonoperating shock and vibration, the read/write heads are positioned in the shipping zone.

	Normal	Abnormal	Nonoperating
	operating	operating
Shock	2 Gs	10 Gs	75 Gs
5–22 Hz vibration	0.020-inch	0.030-inch	0.160-inch
	displacement	displacement	displacement
22–350 Hz vibration	0.50 Gs	0.75 Gs	4.00 Gs

12	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A

1.11 Acoustics

This table shows the overall A-weighted sound power and sound pressure levels for the drives. All measurements are generally consistent with ISO document 7779. Acoustic measurements are taken under essentially free-field conditions over a reflecting plane. The drive is oriented with the top cover up for all tests.

Overall A-weighted Value	Idle	Seek
Sound power, typ (bels)	3.4	4.0
Sound power, max (bels)	3.7	4.3
Sound pressure, typ (dBA)	27	30
Sound pressure, max (dBA)	30	33

1.12 Reliability

Read error rates are measured with automatic retries and data correction with ECC enabled and all flaws reallocated. The mean time between failures (MTBF) is measured at nominal power at sea level and an ambient temperature of 35°C.

Nonrecoverable read errors	1 per 1013 bits transferred
Seek errors	1 per 107 physical seeks
Contact stops and starts	50,000
MTBF	500,000 power-on hours
Service life	5 years

1.13 Agency listings

These drives are listed by agencies as follows:

∙Recognized in accordance with UL 478 and UL 1950

∙Certified to CSA C22.2 No. 220-M1986 and CSA C22.2 No. 950M1989

∙Certified to VDE 0806/05.90 and EN 60950/1.88 as tested by VDE

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1.14Electromagnetic Compliance for the European Union

This model has the CE Marking, signifying that it complies with the European Union requirements of the Electromagnetic Compatibility Directive 89/336/EEC of 03 May 1989 as amended by Directive 92/31/EEC of 28 April 1992 and Directive 93/68/EEC of 22 July 1993.

Seagate® uses an independent laboratory to confirm compliance to the above directives. The drive was tested in a representative system for typical applications. The selected system represents the most popular characteristics for test platforms.

The system configurations include:

∙486, Pentium, and PowerPC microprocessors

∙3.5-inch floppy disc drive

∙Keyboard

∙Monitor/display

Although the test system with this Seagate model complies to the directives, we cannot guarantee that all systems will comply. The computer manufacturer or system integrator will confirm EMC compliance and provide CE Marking for their product. The drive is not meant for external uses (without properly designed enclosure, shielded I/O cable, etc.), and a terminator should be used on all unused I/O ports.

1.15 FCC verification

The Medalist Pro SCSI interface drives are intended to be contained solely within a personal computer or similar enclosure (not attached to an external device). As such, a drive is considered to be a subassembly even when individually marketed to the customer. As a subassembly, no Federal Communications Commission authorization, verification or certification of the device is required.

Seagate Technology, Inc. has tested the drive in an enclosure as described above to ensure that the total assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B computing device, pursuant to Subpart J of Part 15 of the FCC rules. Operation with noncertified assemblies is likely to result in interference to radio and television reception.

14	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A

Radio and television interference. This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio and television reception.

This equipment is designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television, which can be determined by turning the equipment on and off, you are encouraged to try one or more of the following corrective measures:

∙Reorient the receiving antenna.

∙Move the device to one side or the other of the radio or TV.

∙Move the device farther away from the radio or TV.

∙Plug the equipment into a different outlet so that the receiver and computer are on different branch outlets.

If necessary, you should consult your dealer or an experienced radio/television technician for additional suggestions. You may find helpful the following booklet prepared by the Federal Communications Commission:

How to Identify and Resolve Radio-Television Interference Problems.

This booklet is available from the Superintendent of Documents, US Government Printing Office, Washington, DC 20402. Refer to publication number 004-000-00345-4.

Note. This digital apparatus does not exceed the Class B limits for radio noise emissions from computer equipment as set out in the radio interference regulations of the Canadian Department of communications.

Le présent appareil numérique n′émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de Classe B prescrites dans le règlement sur le brouillage radioélectrique édicté par le Ministère des Communications du Canada.

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Sicherheitsanleitung

1.Das Gerrät ist ein Einbaugerät, das für eine maximale Umgebungstemperatur von 55°C vorgesehen ist.

2.Zur Befestigung des Laufwerks werden 4 Schrauben 6-32 UNC-2A benötigt. Bei seitlicher Befestigung darf die maximale Länge der Schrauben im Chassis nicht mehr als 5,08 mm und bei Befestigung an der Unterseite nicht mehr als 5,08 mm betragen.

3.Als Versorgungsspannugen werden benötigt:

+5V æ 5% 0.55A

+12V æ 5% 0.35A (1,9A fur ca. 10 Sek. fur ± 10%)

4.Die Versorgungsspannung muss SELV entsprechen.

5.Alle Arbeiten an der Festplatte dürfen nur von ausgebildetem Servicepersonal durchgeführt werden . Bitte entfernen Sie nicht die Aufschriftenschilder des Laufwerkes.

6.Der Einbau des Laufwerkes muss den Anforderungen gemäss DIN IEC 950 VDE 0805/05.90 entsprechen.

16	Medalist Pro 2160N/ 2160WC Product Manual, Rev. A

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2.0 Hardware and interface

The Medalist Pro drives use an UltraSCSI interface. The ST52160N consists of an 8-bit bidirectional data bus. The ST52160WC consists of a 16-bit bidirectional data bus. The interface supports multiple initiators, disconnect and reconnect, self-configuring host software and logical block addressing.

The UltraSCSI interface uses a singled-ended driver/receiver configuration that uses asynchronous or synchronous communication protocols. The ST52160N supports asynchronous transfer rates up to 10 Mbytes per second and synchronous transfer rates up to 20.0 Mbytes per second. The ST52160WC supports asynchronous transfer rates up to 20 Mbytes per second and synchronous transfer rates up to 40 Mbytes per second.

2.1SCSI-3 compatibility

The drive interface is described in the Seagate SCSI-2 /SCSI-3 Interface Manual, publication number 77738479. The drives comply with the mandatory subset of the ANSI SCSI-2 Interface. The Fast SCSI-3 interface is based on the ANSI Small Computer System Interface-2 (SCSI-2), document number ANSI X3.131-1994.

2.2Handling and static-discharge precautions

The drive has static-sensitive devices. Avoid damaging the drive and these devices by observing the following standard handling and staticdischarge precautions:

∙Keep the drive in its static-shielded bag until you are ready to complete the installation. Do not attach any cables to the drive while it is in its static-shielded bag.

∙Before handling the drive, put on a grounded wrist strap, or ground yourself frequently by touching the metal chassis of a computer that is plugged into a grounded outlet. Wear a grounded wrist strap throughout the entire installation procedure.

Wool and synthetic clothes, carpets, plastics and Styrofoam contributes to electrostatic buildup. Static discharge may damage sensitive components in your drive and computer.

∙Handle the drive by its edges or frame only.

∙The drive is extremely fragile—handle it with care. Do not press down on the drive’s top cover.

18	Medalist Pro 2160N/2160WC Product Manual, Rev. A

∙Always rest the drive on a padded, antistatic surface until you mount it in the host system.

∙Do not touch the connector pins or the printed circuit board.

∙Do not remove the factory-installed labels from the drive or cover them with additional labels. If you do, you void the warranty. Some factoryinstalled labels contain information needed to service the drive. Others are used to seal out dirt and contamination.

2.3Electrical interface

The drives are designed to use single-ended interface signals. They use single-ended drivers and receivers and active terminator circuitry. Figure 2 shows a single-ended transmitter and receiver without the active terminator circuitry.

∙Transmitter characteristics. The drives use an ANSI SCSI-compat- ible, open-collector, single-ended driver. This driver is capable of sinking a current of 48 mA with a low-level output voltage of 0.4 volts.

∙Receiver characteristics. The drives use an ANSI SCSI singleended receiver with hysteresis gate or equivalent as a line receiver.

The loss in the cable is defined as the difference between the voltages of the input and output signals, as shown below:

Logic level	Driver output (x)	Receiver input (x)
Asserted (1)	0.0V ≤ x ≤ 0.4V	0.0V	≤ x ≤ 0.8V
Negated (0)	2.5V ≤ x ≤ 5.25V	2.0V	≤ x ≤ 5.25V

Line driver	+2.85V	+2.85V	Line receiver
(transmitter or transceiver)	110	110
	ohms	ohms
		Flat cable pair
ANSI SCSI			ANSI SCSI
			compatible
compatible circuit
			circuit

Figure 2. Single-ended transmitter and receiver

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ST52160WC

Options Jumper

Block (J5)

SCA-2 Interface

connector

ST52160N

Options Jumper

Block (J5)

	50-Pin Interface
Standard	connector
	Pin 1
power connector

1

2

3

4

Circuit +5V board +5V return +12V return +12V

Figure 3. Connectors

2.4Interface and connector configuration

The ST52160N and ST52160WC drives are differentiated by their connectors. The ST52160N comes with a standard 50-pin interface connector and a standard 4-pin power connector. The ST52160WC comes with an 80-pin blindmate single-connector attachment (SCA-2). The power is supplied to the drive through the bus. To minimize noise, use shielded mating connectors.

20	Medalist Pro 2160N/2160WC Product Manual, Rev. A

2.5ST52160N interface connector

The ST52160N uses a standard 50-pin, nonshielded, keyed connector. The connector consists of two rows of 25 male contacts 0.100 inches apart. Pin 1 on the connector is shown in Figure 3 on page 19. Recommended mating connectors and their part numbers are

listed below.

Part numbers for mating 3M connectors that are compatible with the drives are listed below. These connectors do not have a center key and are available with or without strain relief.

	Without strain relief	With strain relief
	No center key	No center key
Closed end	3M	3M
(for cable ends)	3425-7000	3425-7050
Open end	3M	3M
(for daisy chain)	3425-6000	3425-6050

Part numbers for mating Molex connectors compatible with the drives are listed below. These connectors have a center key.

Closed end	Molex
(for cable ends)	39-51-2504
Open end	Molex
(for daisy chain)	39-51-2501

Below are part numbers for strain reliefs that can be used with the Molex connectors.

Molex strain relief,	Molex 90170-0050
preferred version
in Europe
Molex strain relief,	Molex 15-25-1503
preferred version
in Japan