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Epson SCSI Hard Disk Drive, Information, Page: 10 / 12

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Technical Specificafions

Performance Specifications

Capacity unformatted

per drive:

402MB

per surface:

57.4MB

Capacity formatted

per drive:

340,558,848 bytes

per surface:

48,651,264 bytes

Average latency: 8.3 msec

Seek time

single track read: 2.5 msec
single track write: 3.0 msec

average read:

15 msec

average write:

15 msec

full stroke:

30 msec

SCSI overhead:

600 

SCSI transfer rate/buffer to host

asynchronous:

5 MB/sec

synchronous:

6 MB/sec

Buffer size:

32/128K

8

Technical Specifications

Summary of Contents for SCSI Hard Disk Drive

Page 1: ...EPSON SCSI Hard Disk Drive SCSI Festplattenlaufwerk Le disque dur SCSI Drive per disco Fisso SCSI Unidad de disco duro con SCSI Y72599100700 ...

Page 2: ...rmission is forbidden The contents of this manual are subject to change without notice All efforts have been made to ensure the accuracy of this manual However should any errors be detected Epson would greatly appreciate being informed of them The above notwithstanding Epson can assume no responsibility for any errors in this manual or their consequences Copyright 1991 by SEIKO EPSON CORPORATION N...

Page 3: ...formation in this booklet before you install the drive computer in the United Sta port and service through a rs and Customer Care Ceti We ask that you contact Epson product to Support Center for assistance wil operation of Epson products between 790 a m and 4 OO For call your computer outside of lease rketing location nearest you fo onal marketing locations are listed Ibf this manual s back cover ...

Page 4: ...adapter card See your SCSI Adapter Card User s Guide for instructions n Check the jumper settings on the SCSI drive as described on page 4 of this manual H Adjust the terminators on the SCSI drive as described on page 7 of this manual After performing these procedures you can install the SCSI hard disk drive in your Epson computer just follow the procedures described in your computer User s Guide ...

Page 5: ...E ...

Page 6: ... The jumper labeled J7 controls the type of bus signals used by the SCSI adapter Pins 3 and 4 must have a jumper installed and all other pins must be off this indicates that the SCSI interface is singled ended Do not change this jumper setting Jumper J8 determines whether the hard disk drive or the SCSI interface powers the terminators on the drive The hard disk drive is shipped with jumper J8 ins...

Page 7: ... shown in the table below 1 SCSI ID 1 Pins 1 2 1 Pins 3 4 1 Pins 5 6 1 o 0 0 0 1 X 0 0 2 0 X 0 3 X X 0 4 0 0 X 5 X 0 X 6 0 X X X Jumper installed 0 No jumper Factory setting The factory setting for the hard disk drive is SCSI ID 0 SCSI ID 7 is reserved for the SCSI adapter card ...

Page 8: ... more devices connected to the SCSI adapter card do not support parity checking set the jumper to disabled Drive power up Pins 9 10 on jumper J6 control when the hard disk drive receives power as shown in the table below IDrive receives power I Pins 9 10 I When computer is tumed on I X I At first START r command from initiator 0 X Jumper installed 0 No jumper Factory setting Do not change the fact...

Page 9: ...e echo standing waves and interference along the SCSI interface The first and last devices on a SCSI interface must be terminated The devices in between must not be terminated If you install the SCSI hard disk drive in the middle of the SCSI interface you must remove all three terminator resistors on the drive When replacing the resistors make sure pin 1 is aligned correctly ...

Page 10: ...0 558 848 bytes per surface 48 651 264 bytes Average latency 8 3 msec Seek time single track read 2 5 msec single track write 3 0 msec average read 15 msec average write 15 msec full stroke 30 msec SCSI overhead 600 w SCSI transfer rate buffer to host asynchronous 5 MB sec synchronous 6 MB sec Buffer size 32 128K 8 Technical Specifications ...

Page 11: ... 149 F 40 to 65 C Relative humidity operating 5 to 80 noncondensing nonoperating 5 to 80 noncondensing Elevation 1 000 ft to 10 000 ft Vibration all axes operating 0 5G nonoperating 1G Physical Specifications Height 1 625 in 41 3 mm Width 5 813 in 147 6 mm Depth 6 750 in 171 5 mm Weight 2 2 lbs 0 99 kg ...

Page 12: ...EPSON Printed in USA 91 8 2 CT 01 ...

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