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G}JB|,#P#DE 1 HI BDEHHII 1 B 1 ,^ 1 70,0La- B V,#PH},^ 1 70 0L#L!-* 1P* 1 y0Yj383}mm ݭI}}`8}``|* ? ɛ,`|:-)| / 1L!`DESTINATION CANT BE DOJ}S.SYS0 0H{ 24Δ 28/L!/) 2 Π 2 0 ξK}hAΞB,0 J 1 BDEHI,HÝDE 1HIHIDELSAVE-GIVE L}FILE,START,END(,INIT,RUN)O S0 1`BDEPHI V` S0H 1 L!M}0 0 1L~0`PLEASE TYPE 1 LETTER,0`hhL! 70 1L0L<1 ,;ɛ7,"ɛ:ݦ1ݥN}A"D|ݤD|ȩ:|ȩ|ɛ,,(/+.ީ1 1,ɛ`轤{NAMEO} TOO LONG B VL!` L1I H1EΝDL1|mDiE` V0`8d/8 i:222 1 LP}!ERROR- 138ɛ+,' 20*.. өr2 1``2TOO MANY DIGITSINVALID HEXAQ}DECIMAL PARAMETER800 0 8 00`,0'D800 H,ɛh`2L1NEED D1 THRU D8uR} BRAVO SIERRA COMPUTERS e-mail: bensmith@teleport.com(503) 256-9974BBS: (503) 255-9657----------T}-------------------------------------------------------------- ATARI 8-BIT SOFTWARE FOR SALE: 32 Basic Programs, U}DP Software Disk........................$7.50 U.S. Action Biker, Mastertronic Commodore 64/128/Atari 800XL/130XE Disk, BV}ox & Hint Sheet......$5.00 U.S. Air Support/Quasimodo/Dual Pack. Synapse Software. Disk & Docs.................$7.50 U.S.W} Analog Issue 57, Aug. '87 Disk........................$5.00 U.S. Analog Issue 64, Sept. '88 ..........................X}..$5.00 U.S. Andromeda, Gebelli Disk & Docs.................$5.00 U.S. Antic/APX (AP113), Chameleon TeleCom Emulator. AY}PX Classics from Antic. Docs on Disk. Disk & Docs...$5.00 U.S. Antic (PD008), Antic Exclusives Disk......................Z}..$5.00 U.S. Antic (PD017), Photo Graphics XL's/XE's Require Translator Disk. Disk........................$5.00 U.S. An[}tic (PD027), Fantasy Ventures Disk........................$5.00 U.S. Antic (PD029), Seagames & More Disk.................\}.......$5.00 U.S. Antic Vol. 3 #10, Finance Issue Disk........................$5.00 U.S. Antic Vol. 4 #7, New Communicat]}ions Disk........................$5.00 U.S. Antic Vol. 5 #6, Hard Disks/Education Disk........................$5.00 U.S.^} Antic Vol. 6 #12, Desk Top Video Disk........................$5.00 U.S. Antic Vol. 7 #2, Powering up the XE Game Machin_}e, Disk..........$5.00 U.S. The Arcade Machine, Broderbund Soft. Create your own arcade games. No programming knowledge n`}ecessary. Disk & Manual...............$7.50 U.S. Assembler Editor, Atari Cart & Users Manual........$10.00 U.S. Astro Ca}hase, First Star SoftWare Disk........................$5.00 U.S. Atari Basic Cart........................$5.00 U.S. Atab}ri Basic with Reference Manual Cart & Manual..............$12.50 U.S. Atari Holiday Gift Pack, APX Quick as a Wick/The Twc}elve Daze of Christmas/The Spy Who Came in from the Code. Cass, Box & Docs. Unopened. ............................$5.00 U.d}S. Atari Writer, Atari Cart........................$5.00 U.S. Atari Writer, Atari Cart, Manual & Quick Reference. ....e}........................$7.50 U.S. Atari Writer, Atari Cart, Box, Manual & Quick Reference. ............................$f}7.50 U.S. Atari Writer 80, Atari 48K Required. XEP80 Required. 2 Versions. 800/xl/xe & 130xe Version. W/Atari ProofReadeg}r Disk. Disks, Docs & Quick Ref....$10.00 U.S. AwardWare, Hi Tech Expressions Commodore/Atari. Program & Graphics Disk. h}2 Disks...............$7.50 U.S. B&C (BC002) Print Shop Utility Disk. Disk........................$5.00 U.S. B&C (BC010)i}, FujiBonk Disk........................$5.00 U.S. B&C (PD012), Super Utilities #3 Disk........................$5.00 U.S.j} B&C (PD042), Atari Mini-Film Festival Disk........................$5.00 U.S. B&C (PD065), 130xe Art Show Disk..........k}..............$5.00 U.S. Battle of Antietam, SSI Disk, Box, Laminated Overlay & Docs. ...........................$20.00 Ul}.S. Battle of Antietam, SSI Disk & PhotoCopied Docs.....$7.50 U.S. Big Bird's Special Delivery, CBS Soft Educational Gam}me SoftWare. Disk, Cass, Ref, Box & Dox.......$10.00 U.S. The Book Keeper, Atari Disks: Data Base/Data Entry/ Reporting/n}Sample Data Base Disk Too. Disks, Diskette Holder & Simplified Guide......................$10.00 U.S. BreakThrough in theo} Ardennes, SSI Disk, Laminated OverLays & Docs. ...........................$10.00 U.S. Bulletin Board Construction Set, Ap}ntic Disks, Box & Docs...........$5.00 U.S. C&T (PD007), Game Disk #7 Disk........................$5.00 U.S. C&T (PD525q}), Voyage Through Time Disk........................$5.00 U.S. CardWare, Hi Tech Expressions Commodore/Atari. Disk.......$r}7.50 U.S. Carrier Force, SSI Disk, Box, Laminated Overlays & Docs. ...........................$20.00 U.S. Clear for Acts}ion, Avalon Hill Disk, Box, & Docs..........$20.00 U.S. COMPUTE!'s Best of Atari 11/87 Disk........................$5.00 t}U.S. Computer Ambush, SSI Disk, Box, Rule Book, Soldier Dossiers Squad Cards & Laminated Overlays...................$20.u}00 U.S. Computer Chess, Atari Cart & Docs.................$7.50 U.S. Computer Quarterback, SSI Disk, Box, Pro Offensivev} & Defensive Plays, Semi-Pro Offensive & Defensive Plays & Docs...............$10.00 U.S. Crossfire, Main Street Publishiw}ng Best of the Best series. 800xl/130xe. Disk & Box..................$5.00 U.S. D-Bug, ChildWare Disk, Box & Docs.......x}.....$5.00 U.S. Deadline, Infocom Disk........................$5.00 U.S. Dog Daze, APX Cassette, Box, & Docs.......$5.0y}0 U.S. The Eidolon, Epyx/LucasFilm Games Atari/Commodore 64/128 Disk, Docs..................$7.50 U.S. Encounter, Synapz}se Cross between BattleZone & Bumper Pool on a Hex Grid. Disk.........$5.00 U.S. The Eternal Dagger, SSI Disks & Box....{}.............$5.00 U.S. Family Cash Flow v.2.0, APX Disk........................$5.00 U.S. Family Finances, Atari 2 Dis|}ks & Users Guide.......$5.00 U.S. Financial Asset Management System, APX Disk, Box, & Docs...........$5.00 U.S. Financia}}l CookBook, Electronics Arts Disk, Box & Manual.........$10.00 U.S. A Financial Wizard, CompUtari Disks & Manual.........~}.....$5.00 U.S. Flight Simulator II Dual Pack,SubLOGIC Includes Scenery & Game Disks, Flight Reference Card, Maps, Append}ix sheet, Flight TextBook & Manuals..$30.00 U.S. Frogger, Sierra On-Line Disk........................$5.00 U.S. Galahad} and the Holy Grail, APX Entertainment, 32K, Requires JoyStick. Disk & Docs.................$5.00 U.S. Gauntlet, MindScap}e xl/xe 64K. JoyStick Required. Disk, Box & Docs............$7.50 U.S. Gettysburg - The Turning Point, SSI Disk, Box, La}minated OverLay & Docs. ...........................$20.00 U.S. Gorf, Roklan Atari 400/800. Arcade Favourite. Cart Box, &} Docs. UnOpened.......$5.00 U.S. Graphics Shop, Antic Disk, Box & Docs............$7.50 U.S. Hacker, Activision Disk & }Box..................$5.00 U.S. Hard Hat Mack, Electronic Arts Disk, Box & Docs............$5.00 U.S. HeartWare, Hi Tech} Expressions Commodore/Atari. Disk.......$5.00 U.S. The Home Accountant, Continental SoftW Disks, Box & Docs..........$10}.00 U.S. The Home Filing Manager, Atari Disk & Users Guide..........$7.50 U.S. Home Inventory, Antic Inventory and prot}ect your Posessions then present a list to Insurance and Police after theft. Disk, Box & Docs on Disk.....................}$5.00 U.S. HomePak, Batteries Included Disk & Manual...............$5.00 U.S. Infidel, Infocom Disk....................}....$5.00 U.S. Inventory Master, Royal SoftWare Gives small Business the Ability to Become a Master of Inventory Control.} 48K Atari. Disk............$10.00 U.S. An Invitation to Programming 1:, Atari Cassette & Box. Unopened....$5.00 U.S. A}n Invitation to Programming 1:, Atari Cassette & Box..............$5.00 U.S. An Invitation to Programming 3:, Atari Casse}ttes, Box & Tutorial. Unopened. ............................$5.00 U.S. An Invitation to Programming 3:, Atari Cassettes, }Box & Tutorial...$5.00 U.S. Jeepers Creepers, Quality Software Disk & Docs.................$5.00 U.S. Juggles' House, At}ari Educational SoftWare. Cass, KeyBoard Overlays, Box & Docs........$5.00 U.S. Juggles' Rainbow, Atari Educational Soft}Ware. Cass, Box & Docs ............................$5.00 U.S. Jukebox #1, APX Disk........................$5.00 U.S. Ka}mpfgruppe, SSI Disk, Box, Ratings Card & Docs. ...........................$20.00 U.S. Kingdom, Atari Cassette & Docs....}.........$5.00 U.S. Knights of the Desert, SSI Apple/Atari/ TRS-80 Cass, Disk, Box, Charts, Tables & Docs .....$20.00 U.S}. The Last V8, Mastertronic Side A/Commodore/Side B/Atari Disk & Box..................$5.00 U.S. Legionnaire, Avalon Hi}ll, Disk, Cass, Box, & Docs................$20.00 U.S. Letter Wizard, Datasoft Disk, Quick Reference Card, Box & Instruc}tion Manual..........$7.50 U.S. Lode Runner, Broderbund Software Action Game and Game Generator. Disk & Docs.............}....$7.50 U.S. Lone Wolf SoftWare RAMDisk, Special DOS 2.5, RAM Test & Special Utilitity Disk..............$5.00 U.S. L}ords of Conquest, Electronic Arts 1-4 Players. Disk, Docs & Box ...........................$10.00 U.S. Magneto Bugs, Gent}ry Software Disk........................$5.00 U.S. Mailing List, Atari Cassette & Docs.............$5.00 U.S. Maniac Mi}ner, Gentry SoftWare Disk........................$5.00 U.S. Match Racer, Gebelli Disk & Reference............$5.00 U.S.} Math Blaster! Davidson Atari/Commodore 64/128 Disks, Box, & Docs..........$5.00 U.S. Math Maze, DesignWare The Amazing }Math Game, Learning Comes Alive. Commodore/Atari. Disk & Docs.................$5.00 U.S. Mech Brigade, SSI Disk, Box, We}apons Rating Card & Docs.....................$20.00 U.S. MegaFont II+, Xlent Software Program Lister & Graphics Dumper. }Touch Tablet/Koala Pad Compatible Disk, Box & Docs............$7.50 U.S. Memory Mania & Maxwell's Demon, Gentry 2 Games i}n 1 Disk. Disk.....$5.00 U.S. Missile Command, Atari Uses JoyStick or Trak-Ball. Cart & Docs.................$7.50 U.S.} Missing Links, HesWare Solve Puzzles from the Classics, Old & New. Disk & Docs............$5.00 U.S. Moon Shuttle, Datas}oft Disk, Box & Docs............$7.50 U.S. Music Composer, Atari Cart & PhotoCopied Docs.....$7.50 U.S. The Music Studi}o, Activision Commodore 64/128/Atari 800/XL/XE Disk & Manual...............$7.50 U.S. MWPDS (#33), Educational Stories D}isk........................$5.00 U.S. MWPDS (#70), Adventures/Eamon Master. Games. Disk.................$5.00 U.S. MWPDS} (#77), Strategy & Simulation. Games. Disk.................$5.00 U.S. MWPDS (#124), Adv. & Sim./CrossWords. Games. Disk..}...............$5.00 U.S. My First Alphabet, Atari Educational SoftWare. Disk, Box & Docs............$5.00 U.S. Nam, SS}I Disk, Box, & Docs..........$15.00 U.S. Necromancer, Synapse SoftWare Disk & Docs.................$7.50 U.S. Nukewar, }Avalon Hill Cass, Box & Docs............$5.00 U.S. Operation Market Garden, SSI Disk, Box, Laminated OverLays & Docs. ..}.........................$20.00 U.S. Pac-Man, Atari Cart........................$5.00 U.S. Pac Man, Atari Cart & Docs..}...............$7.50 U.S. Paris in Danger, Avalon Hill Disk, Box, & Docs..........$20.00 U.S. PM Animator, Don't Ask Sof}tware Disk, Manual & Tutorial.....$7.50 U.S. Print Power, Hi Tech Expressions Commodore/Atari/Program Disk/Graphics Disk}. 2 Disks, Box, Docs...$15.00 U.S. Printer's Devil, BCI Software Disk & Docs(PrintShop Gr.)..$7.50 U.S. Print Shop, Brod}erbund, Automatically Designs & Prints Flyers, Banners, Greeting Cards & Stationery. Printer Required. Joystick & Koala}Pad Optional. Comes with Bonus Colored Paper and Matching Envelopes. Disk and Box. Plus Print Shop Graphics Disk, by S}*P*A*C*E #42/43 Side A=128 Graphics, Side B=40 Graphics. Both together in Good Shape.(used)..........$25.00 U.S. DEAL ON }NEW PRINT SHOP, I had my Buyer looking and He found, BRAND NEW, NEVER OPENED, VIRGIN COPIES of Print Shop and accessories} by Broderbund. I Bought out a Major Atari Dealer & now I'm making them available to you at 25% OFF!! THESE BRAND NEW Cop}ies of Print Shop Sold for $40.00 by a Company we all know, but will Remain Nameless. I'm Offering VIRGIN ORIGINALS for $3}0. $10 Less than the Other Guys. AND WHILE THEY LAST, WHEN You buy Print Shop, you can buy Either The Print Shop Paper Pa}ck with 120 Sheets of PinFeed Paper in assorted Colors with 42 Envelopes in Matching Colors for $10 More or The Print Shop} Graphics Library #3 with 120 NEW Graphics for the Print Shop for $15 More. PRINT SHOP (NEW)...........$30.00 U.S. PAPER} PACK (NEW).....Add...$10.00 U.S. GRAPHICS LIB.3 (NEW) Add...$15.00 U.S. Rebel Charge at Chickamauga, SSI Disk, Box, Lami}nated Overlays & Docs. ...........................$20.00 U.S. Reforger '88, SSI, Apple/Atari Disk, Box, Laminated OverLay} & Docs. ...........................$20.00 U.S. Rescue at Rigel, Atari Requires 32K Disk...........$5.00 U.S. Rescue on} Fractulus, LucasFilm Games, Save Downed Pilots while fighting the Jaggi. Disk & Players Guide........$7.50 U.S. Rocket }Repair Man, I.C.D. Disk, Box & Docs............$5.00 U.S. Rosen's Brigade, Gentry Software Disk........................$5}.00 U.S. Rubber Stamp, Xlent Software A Collection of Truly XLEnt Utilities! JoyStick/Touch Tablet/Koala Pad Compat Dis}k, Box & Docs...........$15.00 U.S. Seven Cities of Gold, Electronic Arts Explore Like Christopher Columbus. Disk, Box & }Docs............$5.00 U.S. Space Eggs, Sirius Software Disk........................$5.00 U.S. Space Invaders, Atari Cas}s & Docs.................$5.00 U.S. Space Journey, Roklan Math Educational SoftWare. Cart, Box, & Docs. UnOpened.........}.....$5.00 U.S. Spider-Man, Green Valley Publishing Disk........................$5.00 U.S. Spider Man, Green Valley Publ}ishing Disk & Docs.................$6.00 U.S. Starbase Hyperion, Quality Software Disk........................$5.00 U.S.} StarCross, InfoCom Disk........................$5.00 U.S. Star Fleet I, Cygnus 48K Atari. Disk, Officers Manual, Offic}ers Manual Supplement, Quick Ref & Box......................$20.00 U.S. Star Raiders, Atari Cart & Docs.................$}7.50 U.S. Star Sentry, Analog Software Disk........................$5.00 U.S. Star Trek, Adventure International Casset}te, Box & Docs........$5.00 U.S. Stock Charting, Atari Investment Analysis. Disks, Box & Docs...........$5.00 U.S. Stoc}k Market "The Game", StarSoft Disk, Box & Docs............$7.50 U.S. Stratos, Adventure International Disk, Box, & Docs..}........$10.00 U.S. SynCalc, Synapse SoftWare 48K Atari Disk, Hard Box, Reference Cards & Manual.............$20.00 U.S.} SynCalc, Synapse SoftWare 48K Atari/Commodore 64 Disk, Hard Box, Reference Cards & Manual.....................$20.00 U.S}. SynFile +, Synapse, 48K Atari, Program Disk, Tutorial Disk, SynFile Utilities Disk. Hard Box, Reference Cards & Manual}.............$10.00 U.S. SynFile +, Synapse Disk & Docs.................$5.00 U.S. TAC - Tactical Armor Command Avalon }Hill, Disk, Box, Record Pad & Docs.......................$20.00 U.S. Tail of Beta Lyrae, Datamost Disk & Docs............}.....$5.00 U.S. Target Practice, Gentry SoftWare Practice Shooting in Carnival setting Disk........................$5.00 }U.S. TeleLink 1, Atari Antique Terminal SoftWare. Cart & Manual...............$5.00 U.S. TeleLink 1, Atari Antique Ter}minal SoftWare. Cart........................$5.00 U.S. Telengard, Avalon Hill Cass, Box & Docs............$5.00 U.S. Te}mple of Apshai, Epyx 32K Atari. Disk, Command Table, Box & Manual...............$15.00 U.S. Temple of Apshai, Epyx 32K A}tari. Cass, Command Table, Box & Manual................$7.50 U.S. Threshold, On-Line Systems Disk........................}$5.00 U.S. Tigers in the Snow, SSI, Apple/Atari, Map Display, Players Aid Card, Rule Book & Disk...........$15.00 U.S. }Top Gunner Collection, Microprose Mig Alley Ace, Air Rescue, HellCat Ace Disk, Box, & Docs ...........................$15.}00 U.S. Ultima I, Sierra On-Line Disk........................$5.00 U.S. Ultima II, Sierra On-Line Disks, Map & Docs....}......$10.00 U.S. U.S.A.A.F., SSI Disk, Box, Laminated OverLays & Docs.....................$20.00 U.S. VC, Avalon Hill} Disk, Box, & Docs..........$15.00 U.S. VisiCalc, VisiCorp, 32K Atari. Disk, Pocket Reference, Box & Manual .............}..............$20.00 U.S. War, Adventure International Disk........................$5.00 U.S. Warship, SSI Disk, Box, &} Docs..........$20.00 U.S. Wayout, Sirius Software Disk........................$5.00 U.S. Word Magic & Graphic Magic, An}tic Disk, Box & Docs...........$15.00 U.S. World Karate Championship, Epyx 48K/Atari 800/130XE. Disk....$5.00 US. Zork }I, Infocom Disk........................$5.00 U.S. Zork II, Infocom Disk........................$7.50 U.S. Any of the F}ollowing Cassettes, $3 each. Or 5 Cassettes for $10. Bonus for for Disk Drive users, buy any 5 Cassettes for $10 and rec}eive a Utility Disk which allows you to transfer Cassette software to Disk, or Disk to Cassette, For ***FREE***! Advent}ureLand, Adventure Int. BlackJack, Atari Bug Attack, Cavalier Computer Conflict 2500, Avalon Hill The Count, Adventur}e Int. Crypts of Terror, In Home SoftWare Galactic Chase, Stedek SoftWare Galactic Trader, Adventure International G}host Hunter, Arcade Plus Ghost Town, Adventure Int. Invitation to Programming, Atari Mortgage & Loan Analysis, Atari }Planet Miners, Avalon Hill Rear Guard, Adventure Int. Statistics I, Atari Voodoo Castle, Adventure Int. Writing Progr}ams Two, Atari E-Mail: bensmith@teleport.com Voice: (503)-256-9974 Faster Service? Call voice, 24hrs... Customer pay}s Shipping & Handling. Feel Free to Copy this List!-------------------------------------------------------------------}-----Return to top of page Return to Bravo Sierra Home Page 1995 Bravo Sierra Computers and Extr}eme Marketing  Conner Peripherals }, Inc. CP2040 Intelligent Disk Drive } Product Manual }  PRELIMINARY } Revision I December, 1991 } } 3081 Zanker Road San Jose, CA 95134-2128 (408) 456-4500NoticeConner }Peripherals makes no warranty of any kindwith regard to this material, including, but notlimited to, the implied warranties } ofmerchantability and fitness for a particularpurpose. Conner Peripherals shall not be liablefor errors contained herein }or for incidentalconsequential damages in connection with thefurnishing, performance, or use of this material.Conner Per }ipherals, Inc. reserves the right tochange, without notification, the specificationscontained in this manual.c Copyright }Conner Peripherals, Inc. No part ofthis publication may be reproduced or translatedinto any language in any form without th }e writtenpermission of Conner Peripherals, Inc.IBM, PC/AT are registered trademarks ofInternational Business Machines Cor }poration.Table of Contents1.0 Introduction 2.0 Key Features } 3.0 Specification Summary 3.1 Capacity 3.2 Physical Configuration } 3.3 Performance 3.4 Read/Write 3.5 Pow }er Requirements (Typical) 3.6 Defect Management 3.7 Physical Characteristics } 4.0 Environmental Characteristics 4.1 Temperature 4.2 Humidity } 4.3 Altitude (relative to sea level) 4.4 Reliability and Maintenance } 4.5 Shock 4.6 Magnetic Field 4.7 Acoustic Noise 4.8 }Safety Standards 5.0 Functional Description 5.1 Read/Write and Control Electronics 5 }.2 Drive Mechanism 5.3 Air Filtration System 5.4 Head Positioning Mecha }nism 5.5 Read/Write Heads and Disks 5.6 Error Detection and Correction 5.7 }Customer Options 6.0 Electrical Description 6.1 Cabling 6 }.2 Diagnostic Routines 6.3 SCSI Termination 6.4 SCSI Bus Attachment } 7.0 Recommended Mounting Configuration 8.0 Physical Characteristics 8.1 Cable Requirements } 8.2 Connector Requirements 8.3 Pin Description } 8.3.1 Output Characteristics 8.3.2 Input Characteristics } } 1.0 IntroductionThis specification describes the key fea }tures,specification summary, physical characteristics,environmental characteristics, functionaldescription, electrical in }terface, recommendedmounting configuration, timing requirements, hostaddress decoding, command description, operationsdesc }ription, and error reporting for the ConnerPeripherals model CP2040. 2.0 Key Features } The CP2040 is a high performance 2.5 inch low-profile (.75") offering 42.65 megabytes formattedcapacity disk drive }with 17 ms average seek timetypical which is designed with the SCSI interface.The drive features a low 5V power requirement } andhigh shock resistance, enabling battery operationin portable environments. o 2.5" Form factor. o Single 5 }Volt supply. o Low power requirements. o 7.0 oz unit weight. o High performance rotary voice coil act }uator with embedded servo system. o Single connector for power & interface. o Two of seven run length l }imited code. o High shock resistance. o Internal air filtration system. o Sealed HDA. o Autom }atic actuator latch over data-free landing zone during shutdown mode or power down. o Microprocessor-cont }rolled diagnostic routines that are automatically executed at start-up. o Automatic error correction and }retries. o Block size 512 bytes. o SCSI interface. o 1:1 Interleave. o Look Ahead Read Capability }. o 32K Buffer. 3.0 Specification Summary3.1 CapacityFormatted Mbytes 42.63.2 Physical Configu }rationActuator Type Rotary Voice-CoilNumber of Disks 2Data Surfaces 4Data Heads 4Servo EmbeddedTracks }per Surface 548 Track Density 1,700 TPIFormatted Track Capacity(bytes) 19,456Bytes per Block 512Blocks per }Drive 83,296 Sectors per Track:383.3 PerformanceSeek Times: Track to Track:5.0 msAverage: 19.0 msMaximum }: 40.0 msRotation Speed: 3486 RPMData Transfer Rate: 1.50 Mbyte/secondStart Time:Typical:6 secondsMaximun:1 }0 seconds  Stop Time:Typical: 5 secondsMaximum: 10 secondsInterleave 1:1Buffer Size 32KThe timing is m }easured through the interfacewith the drive operating at nominal DC inputvoltages. The timing also assumes that: o I/O dr }iver overhead and system hardware dependency have been subtracted from timing requirements.The average seek time is } determined byaveraging the seek time for a minimum of 1000seeks of random length over the surface ofthe disk.Host syste }m must allow a minimum of 60seconds for drive electronics to facilitateretries for the READY line to become active.One ret }ry is equal to 25 seconds.3.4 Read/WriteInterface SCSIRecording Method 2 of 7 RLL codeRecording Density (ID) 3 }6,789 bits per inchFlux Density (ID) 24,526 flux reversals perinch3.5 Power Requirements (Typical) +5 Logic }Typical MaximumRead/Write/Seek Mode 560 ma  2.80 W 3.00 WIdle Mode 260 ma  1.30 W 1.50 WShutdown Mod }e 80 ma .40 W 0.50 WSpin-up Mode 1110 ma n/a n/aRead/Write/Seek Mode: Occurs when data is b }eingread from or written to the disk, or when theaccess mechanism is in motion.Idle Mode: Occurs when the drive is not r }eading,writing or seeking. The motor is up to speed andDRIVE READY condition exists. Actuator isresiding on last accessed } track.Shutdown Mode: Occurs when the motor is stoppedand actuator is parked. SHUTDOWN MODE occurs aftera programmable t }ime-out since last host access.The drive leaves SHUTDOWN MODE upon receipt of ahost command requiring disk access.Spin-U }p Mode: Occurs while the spindle motor isaccelerating from its rest state to itsoperational speed. During the typical spi }n-upcycle, current on the 5 volt motor line may reachup to 1000 mA for up to 500 microseconds. Thespecified current is th }e averaged value over thespin-up cycle.Maximum noise allowed (DC to 1 MHZ, withequivalent resistive load with SCSI buste }rminators installed):+5 VDC: +/-3%.3.6 Defect ManagementThe CP2040 contains a total of 2192 spare sectors,one at the en }d of each track. The CP2040 has 2050or more spare sectors available to the user fordefect skipping over the life of the dri !}ve. As shipped from the factory, the drive is allowedto have up to 140 defective sectors. Of these, amaximum of 120 are s "}kipped out and the sectornumbering is slipped to use the spare sector atthe end of the same track.No more than 20 of the #}tracks can have twodefects. The first defect (one of the 120) ishandled as described above. The second defect isassigned t $}o the nearest spare sector on anadjacent track.3.7 Physical CharacteristicsDimensions: .75" x 2.75" x 4.00"Weight: %}7.0 ounces 4.0 Environmental Characteristics4.1 Temperature Operating 5xC to 55xC Non-operating &} -40xC to 60xC Thermal Gradient 20xC per hour maximum4.2 Humidity Operating 8% to 80% non-condensing N '}on-operating 8% to 80% non-condensing Maximum Wet Bulb 26xC per hour4.3 Altitude (relative to sea level) Oper (}ating -200 to 10,000 feet Non-operating (maximum) 40,000 feet4.4 Reliability and Maintenance MTBF 50,00 )}0 hours (POH)1 MTTR 10 minutes typical Preventive Maintenance None Data Reliablity <1 non-rec *}overable error in  1013 bits read4.5 Shock Non-operating shock: 100 G's, 1/2 sine pulse, 11 ms dura +}tionOperating Shock: 10 G's, 11 ms, 1/2 sine wave4.6 Magnetic FieldThe externally induced magnetic flux density mayn ,}ot exceed 6 gauss (DC to 700 Khz) or 1 gauss (700Khz to 1.5 Mhz+) as measured at the drive surface.Frequency Field Inten -}sity0 to 700 Khz 6 gauss maximum700 Khz to 1.5 Mhz 1 gauss maximum4.7 Acoustic Sound EmissionAcoustic sound power: .}TBD dBA max at 1 meterAcoustic sound pressure: 34 dBA at 1 meter4.8 Safety StandardsThe CP2040 disk drive is designed /}to comply withrelevant product safety standards such as: o UL 478, 5th edition, Standard for Safety of Information 0} Processing and Business Equipment, and UL 1950, Standard for Safety of Information Technology Equipment 1} o CSA 22.2 #154, Data Processing Equipment and CSA 22.2 #950, Safety of Information Technology equip 2}ment and CSA 22.2 #220, Information Processing and Business Equipment. o IEC 435 Safety Requirements for Da 3}ta Processing Equipment, IEC 380, Safety of Electrically Energized Office Machines, and IEC 950, Safety 4} of Information Technology Equipment Including Electrical Business Equipment. o VDE 0805 Equivalent to IEC 5} 435, VDE 0805 TIEL 100, Equivalent to IEC 950, and VDE 0806, Equivalent to IEC 380. o TUV Essen 6}TUV Rheinland. 5.0 Functional DescriptionThe drive contains all necessary mechanical andelectronic parts 7} to interpret control signals,position the recording heads over the desiredtrack, read and write data, and provide acontam 8}inant free environment for the heads anddisks.5.1 Read/Write and Control ElectronicsOne integrated circuit is mounted w 9}ithin thesealed enclosure in close proximity to theread/write heads. Its function is to provide head selection, read prea :}mplification, andwrite data circuitry.The single microprocessor controlled circuit cardprovides the remaining electronic ;}functions whichinclude: o Read/Write Circuitry o Rotary Actuator Control o Interface Control <} o Spin Speed Control o Dynamic Braking o Power ManagementAt power down or upon entering the SHUTDOW =}N MODE,the heads are automatically retracted to the innerdiameter of the disk and are latched and parked ona landing zone >}that is inside the data tracks.5.2 Drive MechanismA brushless DC direct drive motor rotates thespindle at 3486 RPM. Th ?}e motor/spindle assemblyis balanced to provide minimal mechanical runoutto the disks and to reduce vibration of the HDA.A @}dynamic brake is used to provide a fast stop tothe spindle motor when power is removed, or uponentering the SHUTDOWN MODE. A}5.3 Air Filtration SystemWithin the sealed enclosure, a .3 micron filterprovides a clean environment to the heads anddi B}sks.5.4 Head Positioning MechanismThe read/write heads are supported by a mechanism coupled to the voice coil actuator. C}5.5 Read/Write Heads and DisksData is recorded on 65mm diameter disks through micro-miniature thin film heads.5.6 Er D}ror Detection and CorrectionThe drive uses an 88-bit Reed-Solomon code toperform error detection and correction. The erro E}rcorrection polynomial is capable of correctingsingle bursts of 11 bits or less on-the-fly in 1/2sector time without micro F}processor intervention,thus with no performance degradation. An errorburst with a maximum of 22 bits or two errorbursts of G} up to 11 bits each per 512 byte blockcan also be corrected.5.7 Customer OptionsThree jumpers, E1, E2 and E3 are used t H}o selectthe drive's SCSI ID. Table 1 defines thesettings for jumpers E1, E2 and E3: I}Table 1. Jumper OptionsE1 E2 E3 SCSI IDOut Out Out 0In Out Out 1Out In Out 2In In Out 3Out Out J}In 4In Out In 5Out In In 6In In In 7 K} L} 6.0 Electrica M}l Description6.1 CablingConnector J2 carries the SCSI interface signalsand the power connections required to operate th N}edrive. 6.2 Diagnostic RoutinesThe microprocessor performs diagnostics uponapplication of power. If an error is detec O}ted, thedrive will not become ready.6.3 SCSI TerminationThe drive uses 1k ohm pull up resistors on alleighteen SCSI bu P}s signals. These resistors aresupplied +5V from the initiator through theTERMPWR line at J2-24. The resistorsare NOT remo Q}vable from the drive.6.4 SCSI Bus AttachmentA single drive may be daisy-chained with otherSCSI targets on a SCSI Bus if R} the drive is thelast physical unit on the Bus and the cable lengthspecification is not exceeded.Two or more drives canno S}t be daisy-chained on aSCSI Bus as all drives contain terminationresistors. This may result in reflections on thecable whi T}ch can cause communication errors betweenthe initiator and the targets on the SCSI Bus. 7.0 Recommended Mounting Con U}figurationThe drive is designed to be used in applicationswhere the unit may experience shock and vibrationsat greater le V}vels than larger and heavier diskdrives.The design features which allow greater shocktolerance are the use of rugged head W}s and media, adedicated landing zone, closed loop servopositioning and specially designed motor andactuator assemblies.F X}our (4) side or bottom mounting points areprovided to the customer. The drive is mountedusing 3mm x 0.5mm thread screws. T Y}he screwinsertion depth into the side or bottom mountingpoints should not exceed 4mm. The systemintegrator should allow ve Z}ntilation to the driveto ensure reliable drive operation over theoperating temperature range. The drive may bemounted in [}any attitude. For additional vibration isolation, an externalsuspension system may be used. \} ]} 8.0 Physical Characteristics8.1 Cable Req ^}uirementsA 40-conductor cable no more than 18" in lengthwith at least 28 AWG wire size and acharacteristic impedance of 9 _}0 to 140 ohms (132ohms nominal) is required. A 50-conductor cablemay be used to connect to both the drive connector(J2) an `}d the option connector (J3).8.2 Connector RequirementsThe drive connector (J2) is a 40-position headerwhich consists of a} 2 rows of 20 male pins on 2mmcenters. The option connector (J3) is an8-position header which consists of 2 rows of 4male b} pins on 2mm centers. 8.3 Pin Desc c}riptionThe drive uses open collector drivers. Allassigned signals are terminated with 1K ohmresistors to +5 volts suppli d}ed to the drivethrough the TERMPWR line (J2-24). The terminationresistors are NOT removable.8.3.1 Output Characteristics e}Each signal driven by the drive has the followingoutput characteristics when measured at the driveconnector:Signal asse f}rtion: 0.0 VDC to 0.4 VDCMinimum driver output capability: 48 ma (sinking)  at 0.5 VDCSignal negation: 2.5 VDC to q}B%DOS SYSB*)DUP SYSBSSOFTW_BSTXTBCP2040 TXTBtATA_5200TXTBCP2060 TXTBCB_P4 ATABFAXSPECSTXTBuCP3200 TXT 5.25 VDC8.3.2 Input CharacteristicsEach signal received by the drive must have thefollowing input characteristics when r} measured atthe drive connector:Signal assertion: 0.0 VDC to 0.8 VDCMinimum total input load: -0.4 ma (sinking) at s} 0.4 VDCSignal false: 2.0 VDC to 5.25 VDC 3From: heller@akh104.rh.psu.edu (Andrew K. Heller)Newsgroups: comp.sys.atari.8bit,rec.games.video.classicSubject: 5200 Nou}tesDate: 28 Feb 1995 20:56:36 GMT------------------------------------------------------------------------Against bev}tter judgement (and a hearty thank you to the personwho sent me this copy to begin with) I am posting the 5200 info.(Not suw}re if it belongs in this group or one of the gamegroups..but I'll post to both) A.N.A.L.O.G. #15, January 1984 x} TRANSPORTING ATARI COMPUTER PROGRAMS TO THE y} 5200 by Claus Buchholz When Atari designed the 5200 "Supersystem" as a successor tothe aging 2600 VCS, they mz}ade use of the state-of-the-arthardware they put into their 400/800 home computers. As aresult, the systems are quite s{}imilar. The differences aregreat enough, however, that transporting programs from onesystem to the other requires some e|}ffort. The 5200 is a single-board machine with four controllerjacks, a cartridge slot, an I/O expansion connector a}}nd apower/RF cable. It shares the same VLSI chips with the400/800, except for the 6520 PIA (joystick/parallel I~}/Oports). The other chips (ANTIC, GTIA, POKEY and the 6502CPU) are in the 5200, although some of their registers are}in different memory locations than those in the 400/800.Also, some of the registers serve slightly differentpur}poses. Figure 1 is a block diagram of the 5200. Let'slook at each section of the hardware in turn. When a specific r}egister is mentioned in the article, thename is taken from the Hardware Manual in the 400/800Technical Reference }Notes. With the exceptions listed inthis article, the Hardware Manual applies also to the 5200. } 6502 CPU. Although it is a standard 6502 from the programmer's view,Atari has reworked this chip to save four suppo}rt chips.Those four chips mediate access of the system bus by the6502B and ANTIC in the 400/800, but that function is} builtinto the 6502C in the 5200. Atari also uses the 6502C in thenew XL series of computers. }16K RAM. The 5200 contains 16K bytes of RAM addressed from $0000 to$3FFF, just as in an unexpanded 400. The memory circ}uit isnearly identical to that in the 400, except it uses 4516s, a5V-only version of the 4116 16K-bit dynamic RAM. The }5200 monitor program reserves locations $0000 through$0018 and $0200 through $021B for shadows and RAM vectors.And, of }course, page $01 is reserved for the 6502 stack. Therest of the RAM is available to the cartridge program. } ANTIC. This is the same ANTIC chip used in the 400/800. Since ANTICshares the address bus with the CPU and ha}s no chip selectinput, its registers reside in the same place in the 5200'smemory as in the 400/800's, page $D4. The 5}200 has no System Reset key, so bit 5 of NMIST isuseless and the 5200's interrupt handler ignores it. } GTIA. The GTIA and its registers perform the same functions in the5200 and 400/800, except as noted below.} The registers,however, reside at page $C0 in the 5200's memory, not at $D0as in the 400/800. The trigger inputs, TRIG}0 through TRIG3, are wired to thecontroller ports, one to a port. The bottom button on eitherside of the leftmost contr}oller zeroes the TRIG0 registerwhen pressed, and likewise for the other ports. The bits in CONSOL, the 400/800's con}sole switch port(START, OPTION, SELECT and speaker), are used as outputs inthe 5200, Bit 3, the 400/800's speaker contro}l can still betoggled in the 5200 to produce sounds through the TVspeaker. Bit 2 controls the pots in th}e joystickcontrollers. It must be set high to enable the pots. Bits 1 and 0 select which controller port is to be active} atone time. 00 selects port #1 (the leftmost), 01 selects #2,10 selects #3, and 11 selects #4. The trigger buttons and}pots are independent of this selection; it applies only tothe keypads and top side buttons on the controllers. } POKEY. POKEY's registers are all addressed at page $EB in the 5200as opposed to $D2 in the 400/8}00. Its functions areunchanged, however, except for two. The eight pot inputs used for paddles in the 400/800 arew}ired to the 5200's controller ports, two to a port. Eachcontroller has an analog joystick, using one pot to sensehori}zontal position and a second pot for vertical position.The even pots (POT0-POT6) give the horizontal positions ofrange }from 1 to 228; the maximum readings are to the rightfor the horizontal pot and at the bottom for the verticalpot. Figur}e 2 shows the pinout for the 5200 controllers. Pin Function1 Keypad -- right column2 Keypad -- middle column3 }Keypad -- left column4 Start, Pause, and Reset common5 Keypad -- third row and Reset6 Keypad -- second row and Pa}use7 Keypad -- top row and Start8 Keypad -- bottom row9 Pot common10 Horizontal pot (POT0, 2, 4, 6)11 Verti}cal pot (POT1, 3, 5, 7)12 5 volts DC13 Bottom side buttons (TRIG0, 1, 2, 3)14 Top side buttons15 0 volts -- groun}d The keyboard scanning lines in the 400/800 are used in the5200 to read the keypad keys to the one controller that is}selected by bits 1 and 0 in CONSOL. Only four lines areused, though, so only bits 1 through 4 of KBCODE are valid.Ta}ble 1 gives the keycode for each key on the controller.The top side buttons on the selected controller act like the400/8}00 shift keys and also cause a BREAK-key interrupt, ifthat's enabled. Bit 0 of SKCTL, the debounce enable bit,need not} be set in the 5200. KBCODEKey bits Keypad code-------------------none 0000 $FF# 0001 $0B}0 0010 $00* 0011 $0AReset 0100 $0E9 0101 $098 0110 $087 0111 $07Paus}e 1000 $0D6 1001 $065 1010 $054 1011 $04Start 1100 $0C3 1101 $032 1}110 $021 1111 $01 POKEY's serial I/O lines are used in the 5200, but they arewired to the I/O expan}sion connector, an edge connectorhidden behind a small door in the rear of the 5200. Thisconnector allows for more h}ardware registers addressed atpage $E0, and for peripherals using the serial port. SeeFigure 3 for the pinout of t}his connector. Its existencedemonstrates Atari's original plans to expand the 5200system. Top } Bottom-----------------------------------------------+5V DC 1 36 +5V DCAudio Out (2 port}) 2 35 Not connectedGround 3 34 GroundR/W Early 4 33 Not connected}Enable E0-EF 5 32 D7D6 6 31 D5D4 7 30 D3D2 } 8 29 D1D0 9 28 GroundIRQ 10 27 A0Ground } 11 26 A1Serial Data In 12 25 A2Serial In Clock 13 24 A3Serial Out Clock } 14 23 A4Serial Data Out 15 22 A5Audio In 16 21 A6A14 17 } 20 A7System Clock 01 18 19 A11 ROM. The 5200 has a 2K ROM on board whi}ch holds the character setand monitor program. The character set, which is an exactcopy of the 400/800's set, resides at} pages $F8 through $FB,and the monitor sits at $FC through $FF. The cartridge ROM can be 32K bytes long and resides }inmemory from $4000 to $BFFF. Figure 4 shows the pinout of thecartridge slot. The two interlock connectors are wired}together on a cartridge board. The 5200 uses this as aswitch for the cartridge's power connections and as a Resetsig}nal. Therefore, a cartridge may be safely removed orinserted while the 5200 is powered on. D0 } 1 36 InterlockD1 2 35 A11D2 3 34 A12D3 } 4 33 A10D4 5 32 A13D5 6 31 A9D6 } 7 30 Audio In (2 port)D7 8 29 A8Enable 80-8F 9 28 Not ConnectedEn}able 40-7F 10 27 A7Not Connected 11 26 +5V DCGround 12 25 Ground}Ground 13 24 Ground (Video In on 2 port)Ground (System Clock02 on 2 port) 14 23 G}roundA6 15 22 A4A5 16 21 A3A2 17 20 A1}Interlock 18 19 A0 The 5200 monitor program. The 1K monitor program in ROM }has three functions: (1) toinitialize the system before running the cartridge program,(2) to service interrupts as they o}ccur, and (3) to maintainshadows of some important hardware registers. Recall thatthe 400/800 Operating System is 10K b}ytes long and performsthe above functions. It also provides peripheral handlers,predefined graphics modes, a screen edi}tor, and floatingpoint math routines. Those utilities do not exist in the5200. Table 2 shows the RAM locations u}sed by the monitor forshadows and RAM vectors. Table 2. 5200 Monitor RAM Locations. P}age Zero Locations$00 Shadow for IRQEN$01 Real time clock (high byte)$02 Real time clock (low byte)$03 } Critical code flag (if non-zero, VBI routine isabbreviated)$04 Attract mode timer/flag$05 Shadow }for DLISTL$06 Shadow for DLISTH$07 Shadow for DMACTL$08-$10 Shadows for COLPMO through COLBK$11-$18 Shado}ws for POT0 through POT7 Page Two Vectors$200 Immediate IRQ vector$202 Immediate VBI vector$204 De}ferred VBI vector$206 DLI vector$208 Keyboard IRQ vector$20A Keypad routine continuation vector$20C BREAK key IRQ vector}$20E BRK instruction IRQ vector$210 Serial Input Data Ready IRQ vector$212 Serial Output Data Needed IRQ vector$214 Serial} Output Finished IRQ vector$216 POKEY Timer 1 IRQ vector$218 POKEY Timer 2 IRQ vector$21A POKEY Timer 4 IRQ vector Upon } Reset, the 6502 vectors through $FFFC to theinitialization routine. This routine performs the followingsequence}. 1. Disable maskable interrupts, clear the 6502 decimal flag,and set the stack pointed to $01FF. 2. If the cartridge }address $BFFD contains $FF, then jumpimmediately through the vector at $BFFE (diagnosticcartridge). 3. Zero al}l hardware registers and page $00, set CHBASE topoint to the character set at $F8, and initialize the firstsix RAM vector}s starting at $0200. 4. Set up the Atari logo rainbow display. The cartridgetitle (20 characters) and copyright year} (2 characters) inANTIC mode 7 display code are taken from cartridge addresses$BFE8 through $BFFD. 5. Enable VBI (Vert}ical Blank Interrupt) and DLI (DisplayList Interrupt), and enable key scan. 6. Wait four seconds, then jump through the }vector at $BFFEto the cartridge program. When the 6502 receives a non-maskable interrupt (NMI), itvectors through $F}FFA to the NMI handler. The followingsteps take place: 1. Check NMIST and strobe NMIRES to reset the interruptsta}tus. 2. If a DLI is pending, jump through the DLI vector(initialized to point to the rainbow effect routine). 3}. If a VBI is pending, jump through the immediate VBIvector (initialized to point to the VBI routine). 4. Else, retu}rn from the interrupt (no System Reset). A cartridge program can change these vectors to point to itsown DLI and VBI r}outines, if it must. The default VBIroutine takes the following action. 1. Push A, X, and Y onto stack, increment th}e real timeclock, and update the attract mode timer. 2. If the critical code flag byte is non-zero, then pop Y,X, and} A from the stack and return from the interrupt. 3. Update DLISTL, DLISTH, and DMACTL from their shadows. 4. Maintain th}e attract mode flag and update the GTIA colorregisters from their shadows. 5. Update the pot shadows from POT0 through POT}7, and strobePOTGO to start another pot scan. 6. Jump through the deferred VBI vector (initialized topoint to the en}d-of-interrupt routine, which pops Y, X, andA, and returns from the interrupt). If maskable interrupts (IRQs) are en}abled and one isreceived, the 6502 vectors through $FFFE to an instructionwhich jumps through the immediate IRQ vector}. That vector isinitialized to point to the IRQ routine, which performs thefollowing tasks. 1. Push A and check IRQST. }2. For each of the eight bits in IRQST, check for a pendinginterrupt. If found, then clear the status bit, update IRQENfr}om its shadow, and jump through the appropriate IRQvector. 3. If no interrupt found, then push X and check for a } BRKinstruction interrupt. If found, then jump through the BRKinstruction IRQ vector. 4. Else, pop X and A and return f}rom the interrupt. The only IRQ vector that is initialized is the keyboard IRQvector, which points to the keypad rea}d routine. Thatroutine does the following: 1. Push X and Y. 2. Read KBCODE and mask bits 1 through 4. 3. Convert to }the keypad code given in Table 1, leaving thatcode in A. 4. Jump through the keypad routine continuation vector(ini}tialized to point to the end-of-interrupt routine). Comparing the 5200's monitor vectors to the 400/800's OSvectors, } we see that Atari paid no attention tocompatibility between the two. This further complicates thetask of conve}rting a program from one system to the other. Transportability. It would not be difficult, given }the information in thisarticle, to write a program in two versions, one for the400/800 and another for the 5200. Nor }would it be difficult,given the source code, to convert a finished program fromthe 5200 to the 400/800. The reverse is} more difficult ifthe program takes advantage of special features in the400/800 OS. Otherwise, the only task, aside} from redefiningsome addresses, is to convert the keyboard/joystick inputroutines from one system to the other. I acq}uired the information in this article by dissecting a5200 and disassembling its ROM. The 400/800 schematics inthe Hardw}are Manual were quite helpful. It is interesting tonote the difference between the two machines and to guessAtari's mo}tives for the design differences. But thesimilarities grossly outweigh the differences, so that a5200 program c}an be developed and almost entirely debuggedbefore testing on a 5200. With the addition of an EPROMburner, a 400/800} can be a powerful development system for5200 programs. An adventuresome hacker can even bypass theEPROM by putting du}al-port RAM on the cartridge board anddownloading programs from the 400/800 development systeminto the 5200 for testin}g. A.N.A.L.O.G. #16, February 1984 READER COMMENT 5200 Article Update. (ANALOG #15) Newer releases of the 5200 i}ncorporate some minor hardwarechanges. Controller ports 3 and 4 have been eliminated,making POT4 through POT7, TRIG2}, TRIG3, and bit 1 of CONSOLuseless. A few of the connector pins have been redefined.Pin 2 of the I/O expansion conne}ctor now carries POKEY'sAudio Out signal. Three pins on the cartridge connector havechanged to accomodate the new 2600 } adapter. The systemclock, 02, is output on pin 14, isolated through a diode. Analternate video input is taken from pin} 24 and is alsoisolated through a diode. Pin 30 provides an alternate audioinput. There is space on the newer boards} for circuitry for a PAL(European TV standard) version of the 5200. Also, on power-up, the monitor program checks for } the PAL version byexamining the GTIA register PAL after step 2 of theinitialization routine. It also checks th}e cartridge programfor PAL compatibility. The byte at $BFE7 should read $02 ifcompatible, or $00 if not. This is the only }important changeto the monitor program. There are some additional hardwarechanges, but none affects the machine's operat}ion from theprogrammer's view. Claus BuchholzGreenwich, CT---------------------------------------------------------}---------------Craig Lisowski (clisowsk@mcs.kent.edu) 8 Conner Peripherals}, Inc. CP2060 Intelligent Disk Drive} Product Manual }  PRELIMINARY } Revision I December, 1991 } } 3081 Zanker Road San Jose, CA 95134-2128 (408) 456-4500NoticeConner }Peripherals makes no warranty of any kindwith regard to this material, including, but notlimited to, the implied warranties} ofmerchantability and fitness for a particularpurpose. Conner Peripherals shall not be liablefor errors contained herein }or for incidentalconsequential damages in connection with thefurnishing, performance, or use of this material.Conner Per}ipherals, Inc. reserves the right tochange, without notification, the specificationscontained in this manual.c Copyright }Conner Peripherals, Inc. No part ofthis publication may be reproduced or translatedinto any language in any form without th}e writtenpermission of Conner Peripherals, Inc.IBM, PC/AT are registered trademarks ofInternational Business Machines Cor }poration.Table of Contents1.0 Introduction 2.0 Key Features  } 3.0 Specification Summary 3.1 Capacity 3.2 Physical Configuration  } 3.3 Performance 3.4 Read/Write 3.5 Po }wer Requirements (Typical) 3.6 Defect Management 3.7 Physical Characteristics  } 4.0 Environmental Characteristics 4.1 Temperature 4.2 Humidity } 4.3 Altitude (relative to sea level) 4.4 Reliability and Maintenance } 4.5 Shock 4.6 Magnetic Field 4.7 Acoustic Noise 4.8} Safety Standards 5.0 Functional Description 5.1 Read/Write and Control Electronics }5.2 Drive Mechanism 5.3 Air Filtration System 5.4 Head Positioning Mech}anism 5.5 Read/Write Heads and Disks 5.6 Error Detection and Correction 5.7} Customer Options 6.0 Electrical Description 6.1 Cabling }6.2 Diagnostic Routines 6.3 SCSI Termination 6.4 SCSI Bus Attachment } 7.0 Recommended Mounting Configuration 8.0 Physical Characteristics 8.1 Cable Requirement}s 8.2 Connector Requirements 8.3 Pin Description } 8.3.1 Output Characteristics 8.3.2 Input Characteristics } 1.0 Introducti}onThis specification describes the key features,specification summary, physical characteristics,environmental characteris}tics, functionaldescription, electrical interface, recommendedmounting configuration, timing requirements, hostaddress de}coding, command description, operationsdescription, and error reporting for the ConnerPeripherals model CP2060. } 2.0 Key Features The CP2060 is a high performance 2.5 inch low-profile (.75") offering 64}.0 megabytes formattedcapacity disk drive with 17 ms average seek timetypical which is designed with the SCSI interface.Th}e drive features a low 5V power requirement andhigh shock resistance, enabling battery operationin portable environments.} o 2.5" Form factor. o Single 5 Volt supply. o Low power requirements. o 7.0 oz unit weight.  } o High performance rotary voice coil actuator with embedded servo system. o Single connector for power & int!}erface. o Two of seven run length limited code. o High shock resistance. o Internal air filtration sy"}stem. o Sealed HDA. o Automatic actuator latch over data-free landing zone during shutdown mode or powe#}r down. o Microprocessor-controlled diagnostic routines that are automatically executed at start-up$}. o Automatic error correction and retries. o Block size 512 bytes. o SCSI interface. o 1:1 Inter%}leave. o Look Ahead Read Capability. o 32K Buffer. 3.0 Specification Summary3.1 CapacityF&}ormatted Mbytes 64.03.2 Physical ConfigurationActuator Type Rotary Voice-CoilNumber of Disks 2Data Surfaces 4'}Data Heads 4Servo EmbeddedTracks per Surface 823 Track Density 2,100 TPIFormatted Track Capacity(bytes) (}19,456Bytes per Block 512Blocks per Drive 125,096 Sectors per Track:383.3 PerformanceSeek Times: Track )}to Track:5.0 msAverage: 19.0 msMaximum: 40.0 msRotation Speed: 3486 RPMData Transfer Rate: 1.50 Mbyte/secondS*}tart Time:Typical:6 secondsMaximun:10 seconds  Stop Time:Typical: 5 secondsMaximum: 10 secondsInterleav+}e 1:1Buffer Size 32KThe timing is measured through the interfacewith the drive operating at nominal DC inputvoltag,}es. The timing also assumes that: o I/O driver overhead and system hardware dependency have been subtracted from ti-}ming requirements.The average seek time is determined byaveraging the seek time for a minimum of 1000seeks of random leng.}th over the surface ofthe disk.Host system must allow a minimum of 60seconds for drive electronics to facilitateretries /}for the READY line to become active.One retry is equal to 25 seconds.3.4 Read/WriteInterface SCSIRecording Method0} 2 of 7 RLL codeRecording Density (ID) 36,789 bits per inchFlux Density (ID) 24,526 flux reversals perinch3.5 1}Power Requirements (Typical) +5 Logic Typical MaximumRead/Write/Seek Mode 560 ma  2.80 W 3.00 WIdle Mode 2}260 ma  1.30 W 1.50 WShutdown Mode 80 ma .40 W 0.50 WSpin-up Mode 1110 ma n/a n/a3}Read/Write/Seek Mode: Occurs when data is beingread from or written to the disk, or when theaccess mechanism is in motion.4}Idle Mode: Occurs when the drive is not reading,writing or seeking. The motor is up to speed andDRIVE READY condition ex5}ists. Actuator isresiding on last accessed track.Shutdown Mode: Occurs when the motor is stoppedand actuator is parked.6} SHUTDOWN MODE occurs aftera programmable time-out since last host access.The drive leaves SHUTDOWN MODE upon receipt of a7}host command requiring disk access.Spin-Up Mode: Occurs while the spindle motor isaccelerating from its rest state to it8}soperational speed. During the typical spin-upcycle, current on the 5 volt motor line may reachup to 1000 mA for up to 509}0 microseconds. Thespecified current is the averaged value over thespin-up cycle.Maximum noise allowed (DC to 1 MHZ, wit:}hequivalent resistive load with SCSI busterminators installed):+5 VDC: +/-3%.3.6 Defect ManagementThe CP2060 contains ;}a total of 3292 spare sectors,one at the end of each track. The CP2060 has 3150or more spare sectors available to the user <}fordefect skipping over the life of the drive. As shipped from the factory, the drive is allowedto have up to 140 defecti=}ve sectors. Of these, amaximum of 120 are skipped out and the sectornumbering is slipped to use the spare sector atthe end>} of the same track.No more than 20 of the tracks can have twodefects. The first defect (one of the 120) ishandled as desc?}ribed above. The second defect isassigned to the nearest spare sector on anadjacent track.3.7 Physical Characteristics@}Dimensions: .75" x 2.75" x 4.00"Weight: 7.0 ounces 4.0 Environmental Characteristics4.1 Temperature OpeA}rating 5xC to 55xC Non-operating -40xC to 60xC Thermal Gradient 20xC per hour maximum4.2 Humidity B} Operating 8% to 80% non-condensing Non-operating 8% to 80% non-condensing Maximum Wet Bulb 26xC per hour4.3C} Altitude (relative to sea level) Operating -200 to 10,000 feet Non-operating (maximum) 40,000 feet4.4 ReliaD}bility and Maintenance MTBF 50,000 hours (POH)1 MTTR 10 minutes typical Preventive Maintenance E} None Data Reliablity <1 non-recoverable error in  1013 bits read4.5 Shock Non-operating shock:F} 100 G's, 1/2 sine pulse, 11 ms durationOperating Shock: 10 G's, 11 ms, 1/2 sine wave4.6 Magnetic FieldThe exG}ternally induced magnetic flux density maynot exceed 6 gauss (DC to 700 Khz) or 1 gauss (700Khz to 1.5 Mhz+) as measured atH} the drive surface.4.7 Acoustic Sound EmissionAcoustic sound power: TBD dBA max at 1 meterAcoustic sound pressure: 34 dI}BA at 1 meter4.8 Safety StandardsThe CP2060 disk drive is designed to comply withrelevant product safety standards sucJ}h as: o UL 478, 5th edition, Standard for Safety of Information Processing and Business Equipment, and K} UL 1950, Standard for Safety of Information Technology Equipment o CSA 22.2 #154, Data Processing Equipment L} and CSA 22.2 #950, Safety of Information Technology equipment and CSA 22.2 #220, Information Processing M}and Business Equipment. o IEC 435 Safety Requirements for Data Processing Equipment, IEC 380, Safety N}of Electrically Energized Office Machines, and IEC 950, Safety of Information Technology Equipment IncludingO} Electrical Business Equipment. o VDE 0805 Equivalent to IEC 435, VDE 0805 TIEL 100, Equivalent to IEC 950,P} and VDE 0806, Equivalent to IEC 380. o TUV Essen TUV Rheinland. 5.0 Functional DescQ}riptionThe drive contains all necessary mechanical andelectronic parts to interpret control signals,position the recordinR}g heads over the desiredtrack, read and write data, and provide acontaminant free environment for the heads anddisks.5.1S} Read/Write and Control ElectronicsOne integrated circuit is mounted within thesealed enclosure in close proximity to theT}read/write heads. Its function is to provide head selection, read preamplification, andwrite data circuitry.The single U}microprocessor controlled circuit cardprovides the remaining electronic functions whichinclude: o Read/Write CircV}uitry o Rotary Actuator Control o Interface Control o Spin Speed Control o Dynamic BrakinW}g o Power ManagementAt power down or upon entering the SHUTDOWN MODE,the heads are automatically retracted to theX} innerdiameter of the disk and are latched and parked ona landing zone that is inside the data tracks.5.2 Drive MechanisY}mA brushless DC direct drive motor rotates thespindle at 3486 RPM. The motor/spindle assemblyis balanced to provide miniZ}mal mechanical runoutto the disks and to reduce vibration of the HDA.A dynamic brake is used to provide a fast stop tothe [}spindle motor when power is removed, or uponentering the SHUTDOWN MODE.5.3 Air Filtration SystemWithin the sealed enclo\}sure, a .3 micron filterprovides a clean environment to the heads anddisks.5.4 Head Positioning MechanismThe read/writ]}e heads are supported by a mechanism coupled to the voice coil actuator.5.5 Read/Write Heads and DisksData is recorded ^}on 65mm diameter disks through micro-miniature thin film heads.5.6 Error Detection and CorrectionThe drive uses an 88-b_}it Reed-Solomon code toperform error detection and correction. The errorcorrection polynomial is capable of correctingsin`}gle bursts of 11 bits or less on-the-fly in 1/2sector time without microprocessor intervention,thus with no performance dega}radation. An errorburst with a maximum of 22 bits or two errorbursts of up to 11 bits each per 512 byte blockcan also be cb}orrected.5.7 Customer OptionsThree jumpers, E1, E2 and E3 are used to selectthe drive's SCSI ID. Table 1 defines thesec}ttings for jumpers E1, E2 and E3: Table 1. Jumper OptionsE1 E2 E3 SCSI IDOut d}Out Out 0In Out Out 1Out In Out 2In In Out 3Out Out In 4In Out In 5Out In In 6In In In e}7 f} g} 6.0 Electrical Description6.1 CablingConnector J2 carries thh}e SCSI interface signalsand the power connections required to operate thedrive. 6.2 Diagnostic RoutinesThe microprocei}ssor performs diagnostics uponapplication of power. If an error is detected, thedrive will not become ready.6.3 SCSI Terj}minationThe drive uses 1k ohm pull up resistors on alleighteen SCSI bus signals. These resistors aresupplied +5V from thk}e initiator through theTERMPWR line at J2-24. The resistorsare NOT removable from the drive.6.4 SCSI Bus AttachmentA sl}ingle drive may be daisy-chained with otherSCSI targets on a SCSI Bus if the drive is thelast physical unit on the Bus and m}the cable lengthspecification is not exceeded.Two or more drives cannot be daisy-chained on aSCSI Bus as all drives contan}in terminationresistors. This may result in reflections on thecable which can cause communication errors betweenthe initiao}tor and the targets on the SCSI Bus. 7.0 Recommended Mounting ConfigurationThe drive is designed to be used in applp}icationswhere the unit may experience shock and vibrationsat greater levels than larger and heavier diskdrives.The desigq}n features which allow greater shocktolerance are the use of rugged heads and media, adedicated landing zone, closed loop sr}ervopositioning and specially designed motor andactuator assemblies.Four (4) side or bottom mounting points areprovided s}to the customer. The drive is mountedusing 3mm x 0.5mm thread screws. The screwinsertion depth into the side or bottom mout}ntingpoints should not exceed 4mm. The systemintegrator should allow ventilation to the driveto ensure reliable drive operu}ation over theoperating temperature range. The drive may bemounted in any attitude. For additional vibration isolation, v}an externalsuspension system may be used. w} x} 8.0 Physical Characteristics8.1 Cable RequirementsA 40-conductor cable no more than 18" in y}lengthwith at least 28 AWG wire size and acharacteristic impedance of 90 to 140 ohms (132ohms nominal) is required. A 50-cz}onductor cablemay be used to connect to both the drive connector(J2) and the option connector (J3).8.2 Connector Require{}mentsThe drive connector (J2) is a 40-position headerwhich consists of 2 rows of 20 male pins on 2mmcenters. The option |}connector (J3) is an8-position header which consists of 2 rows of 4male pins on 2mm centers. }} 8.3 Pin DescriptionThe drive uses open collector drivers. All~}assigned signals are terminated with 1K ohmresistors to +5 volts supplied to the drivethrough the TERMPWR line (J2-24). Th}e terminationresistors are NOT removable.8.3.1 Output CharacteristicsEach signal driven by the drive has the following}output characteristics when measured at the driveconnector:Signal assertion: 0.0 VDC to 0.4 VDCMinimum driver output cap}ability: 48 ma (sinking)  at 0.5 VDCSignal negation: 2.5 VDC to 5.25 VDC8.3.2 Input CharacteristicsEach signal} received by the drive must have thefollowing input characteristics when measured atthe drive connector:Signal assertion:} 0.0 VDC to 0.8 VDCMinimum total input load: -0.4 ma (sinking) at 0.4 VDCSignal false: 2.0 VDC to 5.25 VDC|Newsgroups: rec.radio.cb,rec.radio.info,rec.answers,news.answersPath: bloom-beacon.mit.edu!news.kei.com!MathWorks.Com!europa}.eng.gtefsd.com!howland.reston.ans.net!vixen.cso.uiuc.edu!sdd.hp.com!decwrl!decwrl!amd!amdahl!thunder!ikluftFrom: ikluft@klu}ft.com (Ian Kluft)Subject: rec.radio.cb Frequently Asked Questions (Part 4 of 4)Keywords: FAQ RADIO CBReferences: Followup-To: rec.radio.cbApproved: news-answers-request@MIT.Edu,rec-radio-info@ve6mgs.ampr.ab.}caSender: ikluft@sbay.org (Ian Kluft)X-Content-Currency: This FAQ changes regularly. When your saved or printed copy is} over 9 months old, please obtain a new one from rec.radio.cb or news.answers on NetNews, from rtfm.mit.edu or ftp.amdahl.}com via FTP, or from listserv@rtfm.mit.edu via e-mail.Organization: Kluft ConsultingDate: Tue, 29 Mar 1994 01:41:20 GMT}Supersedes: Message-ID: Expires: Sat, 16 Apr 1994 0}1:41:10 GMTX-Posting-Frequency: posted on the 7th and 22nd of each monthReply-To: cb-faq@kluft.com (CB FAQ Coordinators)Li}nes: 276Xref: bloom-beacon.mit.edu rec.radio.cb:2735 rec.radio.info:4789 rec.answers:4661 news.answers:16962Posted-By: aut}o-faq 3.1.1.4Archive-name: radio/cb-faq/part4Revision: 2.0 1993/11/07 21:32:24Rec.radio.cb Frequently Asked Questions (Pa}rt 4: Technical Trivia)------------------------------------------------------------------THIS ARTICLE IS INTENDED TO BE A }FREE RESOURCE FOR THE BENEFIT OF USENETREADERS. YOU MAY COPY AND REDISTRIBUTE IT UNDER THE CONDITION THAT THISMESSAGE AND }CREDIT TO THE EDITORS AND CONTRIBUTORS ARE INCLUDED WITHOUTMODIFICATION. Material from the FAQ may be used to answer any qu}estions.Corrections and updates are welcome.Questions discussed in Part 4: (dates indicate last modification)* What is si}ngle sideband? (11/92)* Do I really get 120 channels on a radio with single sideband? (12/91)* What are "linear amplifiers"} and can I use them with a CB? (7/93)* Who is "Skip" and why can I hear him all the way across the continent? (7/93)* How c}an I reduce engine noise on my mobile CB? (3/92)* What is GMRS? (9/93)* Where can I learn more about radio? (3/92)--Rec.r}adio.cb Frequently-asked Questions-----------------------------Part 4--* What is single sideband?-------------------------}-To understand single-sideband (SSB), one must first have a picture of what'sgoing on in a normal AM (amplitude modulation}) transmission. For example, onChannel 21 (in North America, Australia, and Europe), a "carrier" is transmit-ted at 27.215} MHz. Your voice (or whatever you're transmitting) is used tochange (modulate) the height (amplitude) of the signal so that} it can bereconstructed as your voice on the receiving end.Actually, the amplitude of the carrier does not change. The ad}dition(modulation) of another signal, like your voice, onto the carrier will increasethe amplitude at other frequencies adj}acent to the the carrier. A 300 Hz tone,for example, would add signals 300 Hz above and below the carrier. Everyfrequency} component of your voice has the same additive effect. These modula-tion effects are the upper and lower sidebands of the t}ransmitted signal.Normal AM transmissions include the carrier signal, the upper sideband (USB)and lower sideband (LSB). Th}e difference in frequency from the bottom of thelower sideband to the top of the upper sideband is called the bandwidth of t}hesignal; it will be twice as wide as the highest frequency modulated onto thecarrier. (For poorly filtered radios, this c}an unintentionally interfere withadjacent channels if the bandwidth is too wide. Poor filtering becomes easilynoticeable a}t higher power levels.)There is enough information in either sideband to reconstruct the originalsignal. Therefore, radio}s which can use single sideband are able to filterout the carrier and the opposite sideband before transmitting them, leavin}geither the upper sideband or lower sideband, as selected by the CB operator.Obviously, for a conversation to take place, b}oth the transmitting andreceiving radios have to be on the same channel and sideband setting (i.e.Channel 25 LSB.) Some ad}ditional tuning will be necessary with a "clarifier"control.Assuming proper filtering within the radios, it should be poss}ible for sep-arate conversations to occur on the upper and lower sidebands of a givenchannel without interfering with each }other.* Do I really get 120 channels on a radio with single sideband?----------------------------------------------------}-----------[This applies to the USA, Australia, Canada, and any other countries that useAM and SSB on the same 40-channel }band.]Yes and no. SSB does give you 120 different communications paths (40 AM, 40USB, and 40 LSB) but they are not free o}f interference from each other. Theupper and lower sidebands will interfere with the AM channel and vice versa.With some r}adios, even the opposite sidebands can interfere with each other.For example, (and this works for any channel - just fill i}n a differentnumber from 1 to 40) Channel 17 has an AM channel that every radio can use.Radios with SSB will also be able t}o use the upper and lower sidebands.However, within a few miles of each other, you can't effectively use theAM channel if p}eople are talking on either sideband. Though not as strong,users of sideband will know if someone is using the AM channel b}ut the higherlegal power settings on sideband give them an advantage.* What are "linear amplifiers" and can I use them wi}th a CB?------------------------------------------------------------In the USA, UK, Australia, Japan, France, Germany, Can}ada, New Zealand, andRussia it is ILLEGAL to use a linear amplifier on Citizen's Band radio. Inthe USA and Australia, the }maximum amount of power that is rated for CB is 4watts on AM and 12 watts PEP (peak envelope power) on sideband. In Japan,}the Citizen's Radio band is limited to 1/2 watt on AM and the Personal Radioband is limited to 5 watts on FM. And the list }goes on... we have not yetheard of any country that allows more than 4 or 5 watts on AM/FM or 12 wattson SSB.For other co}untries, if there is a power limit on CB transmissions, anyamplifier that boosts a radio's power beyond that point is obviou}sly inviolation.Linear amplifiers allow a radio to transmit using much greater power thanis legal. They may range from 3}0 watts to above 1000 watts. The problem isthat, in reality, you can't communicate with anyone you can't hear. But youcan} easily interfere with people you can't hear if you use more than legalpower. So a good antenna is the best solution for ge}tting better range out ofyour CB.The reaction to questions about linear amplifiers on this newsgroup will varywith the co}untry you are from. In countries where they are illegal, you willprobably find yourself severely flamed... In other countr}ies, to avoid anegative response, you may want to limit the distribution of the article toyour country or continent, as app}ropriate.Besides, most black-market linears are low quality and will distort yoursignal and interfere with consumer electr}onics or other radio services.(Stray signals from a linear outside of the CB frequencies can bring a swiftresponse from who}ever it interferes with.) It is far better to run a cleanradio with a clean signal into a high-quality coaxial feedline and} antennatuned for low SWR.Most radios are deliberately undertuned from the factory (to make sure that\they are well withi}n type-acceptance limits). Take it down to a 2-way radioshop and get it a "full-legal maxout" to 4 Watts AM, 12 Watts SSB a}t 100%modulation.* Who is "Skip" and why can I hear him all the way across the continent?-------------------------------}-----------------------------------------If you've heard the term "skip" before, it refers to a condition where a radiosig}nal bounces (actually, refracts, but that's getting technical) off the Iono-sphere, a higher layer in the Earth's atmosphere}. For all practical purposes,this only happens during daytime hours because the Sun's radiation charges upthe Ionosphere a}nd allows the signals to be bounced back to the surface. (Someresidual "charge" remains in the upper atmosphere during the }night but it isnormally not as noticeable in the 11-meter band.)It's called "skip" because, in terms of where a given sign}al can be heard, itskips over a long distance before reaching the surface again. The distancesvary but they can easily be }over 1000 miles (1600km). For example, in Califor-nia, under skip conditions it's possible to hear signals from Alabama or }othereastern states.However, skip is often not a reliable means of communication. Besides, it mayalso be illegal to inte}ntionally use skip for communications. For example, inthe USA you may not use CB for communications beyond 150 miles. (150}mi =240km) CB is intended for local communications. However, in Russia, there isno distance restriction so skip is legal w}hen conditions allow you to make acontact.Skip signals are normally weak, though enough of them from different placescan }add up to a lot of noise. If you hear a strong signal, the person is prob-ably using a linear amplifier which, as discussed} above, is illegal in at leastthe USA, UK, Japan, France, and Germany and frowned-upon almost everywhere.Though there are s}ome conditions when a legally-powered station with a specialantenna can create a strong signal via skip, these are rare.Mo}st CB users' experiences with skip is to turn their squelch higher to cutout the heavy background noise during the daytime. } This is a bigger problemwith AM than with FM because FM has a "capture effect" where the strongersignal wins. Anyone you }talk to (locally) will have to be close by to send astrong enough signal to overcome the background noise and your squelch s}etting.If you use AM, there's really no way around this so get used to it.* How can I reduce engine noise on my mobile CB}?------------------------------------------------If you have problems with engine noise in a mobile installation, there ar}eseveral things you can do to reduce or eliminate the problem.- Make sure you've completely installed your CB and the anten}na is grounded properly. Check the amount of noise with and without the antenna connected. If the noise is greater when }the antenna is connected, the source is probably the ignition system. If the noise remains unchanged after disconnecting t}he antenna, the source is probably in the CB's power supply.- For ignition noise, there are several parts of the vehicle t}hat can act like RF noise transmitters if not properly grounded. Check (and connect to ground on the chassis/frame, if n}ecessary) the engine block, hood, muffler, and exhaust pipe.- Ignition noise can be further reduced by installing "magneti}c suppression" spark plug cables. (These are significantly more expensive than normal spark plug cables.)- For power su}pply noise, check if you have a capacitor attached to your ignition coil, alternator, and distributor. These can act as fi}lters right at the source of the noise.- Ensure that your antenna feedline and power lines are as far as possible from a}ny of the noise sources mentioned above, especially the engine block.- A shielded power cable can help as well. Make sure i}t is of sufficient guage to handle your radio's power consumption and that the shielding has a good, strong connection to} ground on the vehicle chassis or frame.- Electronics stores such as Radio Shack sell cheap power filters for noise- reduc}tion purposes. You get what you pay for, though - most comments on this newsgroup are that they are not as effective as th}e other measures above.Of course, the best performance can be obtained from a more expensive radiowith better noise suppres}sion circuits. These measures, however, will improvethe engine noise levels for nearly any mobile radio.* What is GMRS?}---------------[This applies only to the USA.]The General Mobile Radio Service is another personal radio band. Its freque}ncyallocation is in the ultra-high frequency (UHF) spectrum, co-located with someother radio services in the range from 460}-470 MHz. It requires a license butthere is no examination. Though GMRS is not CB, it is listed here because itis intende}d for use by individuals. A single GMRS license also covers themembers of the licensee's household. The license fee is US$}35 for 5 years. frequencies (MHz) modulation description 460 - 470 FM General Mobile Radio Servi}ce (GMRS) regular channels (simplex or repeater outputs, repeater inputs are 5MHz higher) 462.550 462.}575 462.600 462.625 462.650 462.675 462.700 462.725 simplex low-power channels 462.5625 462.5}875 462.6125 462.6375 462.6625 462.6875 462.7125 31.0-31.3 GHz any mode microwave band now open for in}dividuals to use, requires GMRS licenseGMRS is used for mobile-to-mobile or base-to-m}obile communications butbase-to-base communications are prohibited. One useful aspect of GMRS is thatrepeaters are allowed} so that a mobile GMRS station can extend its range wellbeyond the limits of an ordinary 5-watt mobile transmitter. Only }individuals may obtain GMRS licenses. Some businesses still have licensesfrom before the rules were changed in 1989 but no }new licenses are being issuedto "non-individuals."Recent changes in regulations have given GMRS licensees access to the mi}cro-wave band at 31.0-31.3 GHz for both fixed and mobile use. The licensee mustnotify the FCC of each transmitter with a s}tandard FCC form.For more information, you can obtain compressed text files via anonymous FTPat ftp.amdahl.com in the /pub}/radio/other directory in the files calledgmrs.intro.Z and gmrs.microwave.Z. If you don't have access to the Internetor ne}ed help with FTP, see the rec.radio.amateur.misc FAQ, Part 3.Another source of information is the Personal Radio Steering G}roup. A readersaid they have lots of good information and are enthusiastic about GMRS. Personal Radio Steering Group }PO Box 2851 Ann Arbor MI 48016 Phone: (313) MOBILE 3 BBS: (313) 995-2100 Compuserve: 73016.163* Wh}ere can I learn more about radio?-------------------------------------If you like what you see here and want to learn more} about the technicalaspects of radio, you may be interested in getting an amateur ("ham") radiolicense. These licenses are} available in almost every country in the world,including all of the countries that have CB.Amateur radio is very differen}t from CB. This is neither good nor bad - theyhave different purposes. With the training that a licensed amateur radioope}rator is expected to have, much more powerful transmitters are allowed -but the operator should know when that power is not }necessary and refrain fromit. Amateurs have no limits on the range of their communications (at least,by law or treaty) so }it is possible to make distant "DX" contacts using atmos-pheric skip, satellites, or even bouncing signals off the Moon. Ag}ain,training and the willingness to cooperate (to avoid interference with others)are necessary for obtaining and using thes}e privileges.Japan, Sweden the USA and many other countries have authorized a new amateurradio "no-code" license which req}uires only a written test (no morse code).However, the test is challenging enough to necessitate several weeks of study(or }a few days if you already have some familiarity with the subject) sodon't go unprepared. More information, see the FAQ arti}cles in therec.radio.amateur.misc newsgroup.Even if you don't want the license, books intended for amateur radio operators}make available a wealth of information on understanding transmitters, recei-vers, antennas, modulation, signal propagation,} electronics, and many othertopics which also apply to CB.< Page 1 Document TR30.4.1/89-01001R4 January 1989 ELECTRONIC INDUSTRIES ASSOCIATION AD HOC S}UBCOMMITTEE TR30.4.1 Project: PN-2188, Asynchronous Facsimile DCE Control Standard Source: Data Race,  }Inc Subject: DTE-DCE Interface Description for Facsimile Operations with Minimum DCE Facilities ("Class 1")  } 1. Introduction At the September 15, 1988 meeting of the TR30.2.3 committee, Les Staples of Data Race was requeste }d to produce a working paper for the "Class 1" DTE-DCE interface for Facsimile Operation embodying the features and } facilities agreed upon by the committee. At the November meeting in Las Vegas, the first draft of that paper was  }submitted. Many useful suggestions and comments were made at that meeting. A second draft was presented at the Jan}uary 1989 committee meeting.The committee has been renamed TR30.4.1. A large number of good suggestions were incor}porated, resulting in this, the third draft of that paper. Several changes to the original paper have been made to} facilitate a simple 3-wire electrical interface, to eliminate the need for the DTE to be able to detect and ha}ndle the BREAK signal, and to eliminate the requirement for the DTE to be able to force the DCE to Command Mode. T}he attendees at the January, 1989 meeting were in general agreement on the workability of this paper in this form. }The major changes made at the January 1989 meeting were: . requirement for the DCE to support XON/XOFF . removal of N}ULL padding ability during FAX transmit . add of DCE capability to detect the Final bit in the C-Field of an HDLC fr}ame it is transmitting and to use the Final-bit detection to cause a return to Command Mode. . add of OK respon}se code each time the DCE returns to Command Mode for consistancy. . add of CONNECT response code each time the DCE }exits Command Mode while On-Line for consistancy  Page 2 TR30.4.1/89-01001R4 2. Description of Inte}rface The interface described is an extension of the asynchronous modem control "AT" command set currently under } study by the TR30.4 committee and uses the format proposed by the TR30.4 committee. Every effort has been made to kee}p this level of interface as simple as possible with minimum requirements for processing placed on the DCE. The ab}ility to efficiently operate with the current T.4 Recommendation as well as with a future error-protected facsimile} transmission protocol, such as that specified in the Revised Recommendation T.4, AP IX-24-E, was also a considerat}ion. An object of this paper is to allow a single port rate setting throughout the facsimile operation. Port rate} setting methodologies are left to PN-2120. Bi-directional flow control is specified in all modes to prevent }loss of data. The DCE must be capable of using in- band (XON-XOFF) and, optionally, electrical lead signaling (RTS }-CTS).Methodologies for specifying to the DCE the flow control method to be used are left to PN-2120.  Page 3!} TR30.4.1/89-01001R4 2.1 Electrical Interface - Data and Control Signals The described interface assumes a ser"}ial asynchronous connection between the DTE and the DCE consisting of, as a minimum, Circuit BA (Transmitted Data),#} Circuit BB (Received Data), and Circuit AB (Signal Ground). Circuit CA (Request To Send) may optionally be used b$}y the DTE to flow-control the DCE, and Circuit CB (Clear To Send) may optionally be used by the DCE to flow-control%} the DTE. Circuit CD (Data Terminal Ready) may optionally be used by the DTE to control the Off-Hook and Command M&}ode states of the DCE. The specific use of these leads are left to PN-2120. 2.2 Firmware Interface - Commands an'}d Registers 2.2.1 Modulation Control Register The described interface uses a single register to determine (}the desired modulation type. This register may be set and examined by the normal ATSr commands. Register 65 has b)}een chosen for this description, but another currently- unused register may be used in its place. Values in the re*}gister select: Value Modulation 3V.29 - 7200 BPS 4V.29 - 9600 BPS 5V.27 - 2400 BP+}S 6V.27 - 4800 BPS 10V.21 - 300 BPS 11TONE - 2100 Hz (CED) 12TONE - 1100 Hz (CNG - EOM,}) 13V.33Bis 12000 BPS* 14V.33Bis 14400 BPS* 15V.xx19200 BPS 21 Reserved for DTMF tone d-}etect *These speeds are not required but the values are reserved for future implementations. 2.2.2 Dial.}ing and Answering 2.2.2.1 Dialing The normal ATD is used to dial a facsimile call. If the DC/}E is set for CED Tone mode, normal DCE call progress detection and reporting will be used. When the DCE detects th0}e configured tone, it will send the CONNECT response code to the DTE, followed by the OK response code indicating t1}hat the DCE is in Command Mode.  Page 4 TR30.4.1/89-01001R4 2.2.2.2 Answering The normal ATA comm2}and or Automatic Answering is used to cause the DCE to come off-hook in answer mode. In facsimile operation, when 3}Register 65 is one of the defined the defined facsimile modes, the CONNECT result code will be immediately sent to 4}the DTE and the DCE will enter Command Mode. The DTE would normally immediately order the DCE to transmit the 21005} Hz CED tone. 2.3.2 Facsimile Transmission and Reception Facsimile transmission and reception is controlled by6} four commands which are specific to facsimile operation. Since the data set over the interface is asynchronous, 7} containing start and stop bits, it is necessary to set the DTE-DCE interface to a higher data rate than the line 8}modulation rate. Since the maximum line modulation rate specified in Recommendation T.4 is 9600 BPS, it is conveni9}ent to set the DTE-DCE interface rate to 19,200 BPS. The DCE performs buffering and flow-control as described in th:}e remainder of this document. An object is to allow the entire facsimile operation to be accomplished at a single ;}port rate.Methodologies for port rate setting are left to PN-2120.  Page 5 TR30.4.1/89-01001R4 2.3.<}2.1 Facsimile Transmit The command AT+FT is used to cause the DCE to transmit using the modulation selected by the c=}ontent of the Modulation Control Register. The DCE should be Off-Hook when this command is issued by the DTE. The>} DCE will return the CONNECT response code and immediately send the proper training sequence in the selected mode (?}if any) followed by data. The DCE buffers data in this mode. The configured flow-control method will be used b@}y the DTE as necessary to pause the DTE. When the DCE's transmit buffer becomes empty, the DCE will stop transmA}itting, lower transmit carrier, and return to command mode, returning the OK result code. The DTE may force the DCB}E to command mode by making Circuit CD (Data Terminal Ready) false, if so configured. When the DCE returns to commC}and mode, it will lower its transmit carrier. If the mode chosen is TONE, the DCE will immediately begin to send theD} configured tone when the command is issued. If the DTE sends any subsequent data to the DCE, DCE will return to cE}ommand mode. If the data from the DTE which aborts the receive process is a valid command, the command will be exeF}cuted correctly.  Page 6 TR30.4.1/89-01001R4 2.3.2.2 Facsimile Receive The command AT+FR causes the G}DCE to enter receive mode. The DCE receives in the modulation mode specified in the Modulation Control Register. TH}he DCE will wait up to the time set in Register 7 for carrier to be detected.If the signal fails to be detected wiI}thin that time, the modem returns to Command Mode and sends the NO CARRIER response code. If the selected mode J}is detected (Receive Line Signal Detect in the proper mode), the DCE will send the CONNECT result code to the DTE.K} If a signal is detected, but it is not the selected mode, the DCE will send a CERROR (Connect Error) result code L} to the DTE. This result code may optionally contain a numeric code indicating the type of signal that the DCE has M} determined that it is detecting. If the modulation selected is TONE, the CONNECT result code will be returned whenN} the selected tone is detected for the period of time set in Register 9 , the Carrier Detect Response Time registerO}, (0.1 second increments, default 0.6 seconds). The DCE will then return to command mode. In data modes, the DCE wiP}ll return to Command Mode upon loss of carrier for the period of time set in Register 10, sending the normal NO CARQ}RIER result code. The DCE will obey the configured flow control from the DTE. If the DTE sends any data to the DR}CE other than XON or XOFF while the DCE is in a Receive mode, the DCE will return to command mode. If the data frS}om the DTE which aborts the receive process is a valid command, the command will be executed correctly. The DTET} may force the DCE to command mode by making Circuit CD (Data Terminal Ready) false, if so configured.  Page 7U} TR30.4.1/89-01001R4 2.3.2.3 HDLC Transmit The command AT+FTH causes the DCE to transmit frames in HDLC prV}otocol using the modulation mode chosen in the Modulation Control Register. If, when the command is executed, the W}mode set in the Modulation Control Register is not a valid synchronous mode, the response code ERROR will be returnX}ed by the DCE and the DCE will return to command mode. The DCE will return the CONNECT result code and transmit Y}training followed by flags until the first byte of data is sent by the DTE. When the buffer becomes empty the DCE Z}will append the Frame Check Sequence and a closing Flag to the frame and return to Command Mode, sending the result [} code CONNECT to the DTE. The DCE will continue to send flags until one of the following actions is taken by the D\}TE. . The DTE sends additional data. This action causes the DCE to send another frame. . The DTE forces the DCE]} to Command Mode via Circuit CD (Data Terminal Ready) or the Escape Sequence. . The period of time in Register 10, t^}he Carrier Detect Response Time, elapses from the time when the DCE reported the CONNECT result code without the DT_}E sending additional data to the DCE. The DCE detects the FINAL bit in the C-field of the frame. When the`} DCE stops transmitting and returns to Command Mode and sends the the DTE the OK result code or the NO CARRIER resua}lt code in the case of S10 expiration. The DCE performs HDLC zero insertion and Frame Check Sequence generation whilb}e in this mode. The DCE buffers data in HDLC transmit mode. The DCE will use the configured method of flow-controlc} to pause the DTE as necessary.  Page 8 TR30.4.1/89-01001R4 2.3.2.4 HDLC Receive The commd}and AT+FRH causes the DCE to receive frames in HDLC protocol using the modulation mode selected in the Modulation Ce}ontrol Register. If, when the command is executed, the mode set in the Modulation Control Register is not a valid f}synchronous mode, the response code ERROR will be returned by the DCE and the DCE will return to command mode. g} If the selected mode is detected (Receive Line Signal Detect in the proper mode), the DCE will send the CONNECT resulth} code to the DTE. If a signal is detected, but it is not the selected mode, the DCE will send a CERROR (Connecti} Error) result code to the DTE. This result code may optionally contain a numeric code indicating the type of signj}al that the DCE has determined that it is detecting. The DCE strips Flags and receives and buffers frames. The k}received data, starting with the first non-Flag byte and continuing through the last FCS byte will be transferred to l} the DTE. The DCE performs HDLC zero-deletion and error checking. When the last byte of FCS has been sent to the m} DTE, the DCE may optionally inform the DTE of End-Of-Frame by generating a BREAK signal. After the FCS bytes, foln}lowing the optional BREAK, the DCE will inform the DTE of the status of the frame reception by returning a result codeo} of OK, if the frame was received correctly, or ERROR, if the frame was received in error. The DCE will obey the p}configured form of flow control from the DTE. After sending the Result Code indicating the frame reception is cq}omplete, the DCE continues to receive and buffer data in the selected mode. If the DTE issues another HDLC Receiver} command, the buffered data will be sent to the DCE and HDLC reception will proceed. If any other command is issues}d by the DTE, the DCE will stop the receive process. Any buffered data will be discarded and the command will be obt}eyed. The DCE will return to Command Mode upon loss of carrier for the period of time set in Register 9, sending u} the normal NO CARRIER result code.  Page 9 TR30.4.1/89-01001R4 In this mode, the DTE may force the DCE tov} command mode with the Escape Sequence or by making Circuit CD (Data Terminal Ready) false, if so configured. w} 2.4 Optional Features 2.4.1 Data Buffering In order to allow a computer, such as a multi-user one, whichx} may not always be able to quickly respond to avoid having under-run conditions when transmitting a facsimile, signy}ificant buffering in the DCE may be desirable.The ability to buffer up to 3 seconds of data for transmission (lessz} than 4 kilobytes of buffer) may be provided as an option. 2.4.2 DTMF Detection A desirable feature of a mu{}lti-function DCE which is capable of facsimile and various forms of data communications would be to be able to dete|}ct Dual Tone Multi-Frequency digits to tell a program what service the caller desires. In this operation, the call}}ing DCE would respond to a secondary dialtone emitted by the answering DCE and send one or more digits. These digi~}ts would result in unsolicited result codes to the DTE.  Page 11 TR30.4.1/89-01001R4 2.4.2.1 Sugge}sted DTMF implementation. Examples: Dial string at caller: ATDT@x (where x is a digit). Command s}equence to answering DCE: Upon Detection of RING: ATH1+FT (The H1 causes the DTE to come Off-Hook. The @ in the di}al string causes the DCE to wait for silence before continuing. The +FT with the proper tone setting in register 6}5 causes the DCE to send a short tone. The DTE then goes into DTMF detect mode. If the DCE detects a DTMF digit it }sends the DTE an unsolicited response code consisting of an ! (exclamation) followed by the digit received. The DC}E is in a form of Command Mode. Any command sent to the DCE will cause it to exit the DTMF detection mode and be o}beyed. Many of the currently available facsimile data-pumps cannot quickly detect a DTMF digit without additional } hardware. They are, however, capable of detecting the column tones, allowing at least the digits 1, 2, and 3 to be} detected. A better syntax may be determined by the TR30.4 group which will satisfy this function.rConner Peripherals, Inc.CP3200Intelligent Disk Drive Product Manual Revision VI Augus#}t, 19913081 Zanker RoadSan Jose, CA 95134-2128(408) 456-4500NoticeConner Peripherals makes no warra#}nty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and #}fitness for a particular purpose. Conner Peripherals shall not be liable for errors contained herein or for incidental con#}sequential damages in connection with the furnishing, performance, or use of this material.Conner Peripherals, Inc. reserv#}es the right to change, without notification, the specifications contained in this manual.Copyright Conner Peripherals, I#}nc. No part of this publication may be reproduced or translated into any language in any form without the written permissio#}n of Conner Peripherals, Inc.IBM, PC/AT and PC/XT are registered trademarks of International Business Machines Corporatio#}n.Table of Contents1.0Scope of Manual2.0Key Features 3.0Specification Summary3.1Capacity3.2Physical Co#}nfiguration3.3Performance3.4Read/Write3.5Power Requirements (Typical)3.6Physical Characteristics4.0Enviro#}nmental Characteristics4.1Ambient Temperature4.2Humidity4.3Altitude (relative to sea level)4.4Reliability and#} Maintenance4.5Shock and Vibration4.6Magnetic Field4.7Acoustic Noise4.8Safety Standards5.0Functional Descr#}iption5.1Read/Write and Control Electronics5.2Drive Mechanism5.3Air Filtration System5.4Head Positioning Mech#}anism5.5Read/Write Heads and Disks5.6Error Correction5.7Customer Options6.0Electrical Interface6.1Power C#}onnector6.2Diagnostic Routines6.3SCSI Termination6.4Spindle Synchronization7.0Recommended Mounting Configurat#}ion8.0SCSI Interface8.1SCSI Commands8.2Cable Requirements8.3Connector Requirements8.4Electrical Descripti#}on8.4.1Output Characteristics8.4.2Input Characteristics8.4.3Terminator Power1.0 Scope of ManualThis s#}pecification describes the key features, specification summary, physical characteristics, environmental characteristics, fu#}nctional description, electrical interface, recommended mounting configuration, timing requirements, host address decoding,#} command description, operations description, and error reporting for the Conner Peripheral's model CP3200. 2.0 Key Feat#}uresThe Conner Peripherals CP3200 is a 3.5 inch disk drive which offers high performance and capacity (212.9 megabytes) w#}ith low power consumption. It comes equipped with an embedded industry standard controller.Key features include:o1:1 I#}nterleaveoAutomatic Spindle Synchronizationo64K Byte Read Look Ahead BufferoEmbedded ServooRotary Voice Coil #}ActuatoroTrack SkewingoDouble Burst 48 Bit ECCoLow Power Consumptiono2 Byte CRC on HeaderoAutomatic Ret#}ries3.0 Specification Summary3.1Capacity212.6 Mbytes Formatted 3.2Physical ConfigurationActuator TypeRotary #}Voice-coilNumber of Disks4Data Surfaces8Data Heads8ServoEmbeddedTracks per Surface1366Track Density1700 TPI#}Track Capacity19,456 bytesBytes per Block512Blocks per Drive415,264Blocks per Track383.3Performance: Se#}ek times Track to Track: 5ms Average: 16 msMaximum: 35. msRotation Speed (+0.1%)3485 RPMData Transfer #}Rate 1.5 Mbyte/secStart Time typical: 15 secmaximum: 20 secStop Time typical: 15 secmaximum: 20#} secInterleave1:1Buffer Size64KThe timing is measured through the interface with the drive operating at nominal DC #}input voltages. The timing also assumes that any I/O driver overhead and system hardware dependency have been subtracte#}d from timing measurements.The average seek time is determined by averaging the seektime for a minimum of 1000 seeks of ra#}ndom length over the surface of the disk.3.4Read/Write InterfaceSCSIRecording MethodRLL CodeRecording Densi#}ty (ID)31,800 BPIFlux Density (ID)21,200 RPI3.5Power Requirements (Typical)+12V DC +5V DCPowerRead/Write Mode325 m#}a300 ma5.5 WSeek Mode300 ma175 ma4.5 WReady Mode220 ma160 ma3.5 WSpin-up Mode2.0 A160 ma N/A+12V DC: The maximum r#}ipple allowed is 1% with equivalent resistive load. +5V DC: The maximum ripple allowed is 2% with equivalent resistive loa#}d, without SCSI bus terminators installed.Read/Write Mode: Occurs when data is being read from or written to the disk.Se#}ek Mode: Occurs when the actuator is in motion.Ready Mode: Occurs when the drive is not reading, writing, or seeking. The #}spin motor is up to speed and a Drive Ready condition exists. The actuator is residing on the last accessed track.Spin-u#}p Mode: Occurs while the spindle motor is accelerating from its rest state to its operational speed. During the typical spi#}n-up cycle, current on the 12 volt line may reach up to 1000 mA for up to 500 microseconds. The specified current is the av#}eraged value over the spin-up cycle.3.6Physical Characteristics 1.625" x 4.00" x 5.75" (with shock frame)Weight2.0 #}pounds4.0Environmental Characteristics4.1TemperatureOperating5 deg C to 55 deg CNon-operating-40 deg C to 60 d#}eg CThermal Gradient 20 deg C P/h4.2HumidityOperating8% to 80% non-condensingNon-operating8% to 80% non-condens#}ingMaximum Wet Bulb26 deg C P/h4.3Altitude (relative to sea level)Operating0 to 10,000 feetNon-operating (max)40,#}000 feet4.4Reliability and MaintenanceMTBF150,000 hours (POH)1MTTR10 minutes typicalMaintenanceNoneData Reliabl#}ity<1 non-recoverable error in 1013 bits read4.5Shock and VibrationShock:1/2 sine pulse, 11 msecond durationVibration:#} Swept sine, 1 octave per minuteNon-operating shock50 Gs, 10 msNon-operating vibration5-62 Hz (1.2 oct/min)0.020"#} double amplitude63-400 Hz (1/2 oct/min)4 Gs peakOperating Shock 5 Gs (without non-recoverable errors)Operating Vib#}ration5-22 Hz .010 inch displacement (double amplitude)23-500 Hz 5 Gs peak (without non-recoverable error)4.6 M#}agnetic FieldThe disk drive will meet its specified performance while operating in the presence of an externally produced #}magnetic field under the following conditions:FrequencyField Intensity0 to 700 Khz6 gauss maximum700 Khz to 1.5 Mh#}z1 gauss maximum4.7 Acoustic NoiseThe sound pressure level will not exceed 40 dBA at a distance of 1 meter from the driv#}e.4.8Safety StandardsThe drive is designed to comply with relevant product safety standards such as:oUL 478, 5th edi#}tion, Standard for Safety of Information Processing and Business Equipment, andUL 1950, Standard for Safety of Informat#}ion Technology Equipment oCSA 22.2 #154, Data Processing Equipment andCSA 22.2 #220, Information Processing and Busine#}ss EquipmentCSA 22.2 #950, Safety of Information Technology EquipmentoIEC 435 Safety Requirements for Data Processing #}Equipment,IEC 380, Safety of Electrically Energized Office Machines, andIEC 950, Safety of Information Technology Equipme#}nt Including Electrical Business EquipmentoVDE 0805 Equivalent to IEC 435,VDE 0805 TIEL 100, Equivalent to IEC 950, an#}d VDE 0806, Equivalent to IEC 380oTUV EssenTUV Rheinland5.0Functional DescriptionThe drive contains all necessar#}y mechanical and electronic parts to interpret control signals, position the recording heads over the desired track, read a#}nd write data, and provide a contaminant free environment for the heads and disks.5.1Read/Write and Control Electronics#}One integrated circuit is mounted within the sealed enclosure in close proximity to the read/write heads. Its function is to#} provide head selection, read pre-amplification, and write drive circuitry.The single microprocessor-controlled circuit c#}ard provides the remaining electronic functions which include:oRead/Write CircuitryoRotary Actuator ControloInterf#}ace ControloSpin Speed ControloDynamic BrakingAt power down the heads are automatically retracted to the inner diame#}ter of the disk and are latched and parked on a landing zone that is inside the data tracks.5.2Drive MechanismA brushle#}ss DC direct drive motor rotates the spindle at 3485 RPM. The motor/spindle assembly is dynamically balanced to provide m#}inimal mechanical runout to the disks. A dynamic brake is used to provide a fast stop to the spindle motor and return the he#}ads to the landing zone when power is removed.5.3Air Filtration SystemWithin the sealed enclosure, a 0.3 micron filter #}provides a clean environment to the heads and disks.5.4Head Positioning MechanismThe read/write heads are supported by #}a mechanism coupled to a voice coil actuator.5.5Read/Write Heads and DisksData is recorded on 95mm diameter disks throu#}gh 3370 type heads.5.6Error CorrectionThe drive performs internal error correction. The dual seven-byte error correctio#}n polynomial is capable of correcting two error bursts, each with a maximum of 8 bits per 512 byte block.5.7Customer Opti#}onsThere are three jumpers available for configuration; E1, E2, and E3 are used to selects the drive's SCSI ID. The follow#}ing table defines the settings. Note: SCSI parity is always enabled.Jumper OptionsSCSI IDE1 = 1E2 = 2E3 = 46.0 Ele#}ctrical Interface6.1 Power ConnectorThe drive has a four-pin DC power connector (J4) mounted on the PCB. The recommende#}d mating connector is Amp part number 1-480424-0 utilizing AMP pins (part number 350078-4 or equivalent).6.2 Diagnostic #}RoutinesThe microprocessor performs diagnostics upon application of power.If an error is detected, the drive will not come#} ready.6.3 SCSI TerminationThere are three removable terminators: RP1, RP2, and RP3. They can be removed from the drive#} if bus termination is provided elsewhere in the system. If multiple devices areinstalled on the cable, only the last devic#}e is terminated.6.4 Spindle SynchronizationFor use in Disk Arrays, a spindle synchronization feature is provided. Spi#}ndle synchronization between drives is accomplished by connecting a cable to J1 on each of the drives. Up to twelve disk dri#}ves may be connected, and the method used to implement synchronization does not require a designated master drive.To cons#}truct the cable, a 2-conductor ribbon cable and 16-pin displacement connector(Molex part number 15-47-3162 or equivalent) a#}re required. Install the required number of connectors on the ribbon cable with the two conductors in pin positions 1-2 (p#}in positions 3-16 are unused). To install the completed cable, connect the 16-pin displacement connector to J1 of each dr#}ive. Align pin 1 of the connector with pin 1 of J1. 7.0Recommended Mounting ConfigurationThe CP3200 drive is designed #}to be used in applications where the unit may experience shock and vibrations at greater levels than larger and heavier dis#}k drives.The design features which allow greater shock tolerance are the use of rugged heads and media, a dedicated landin#}g zone, closed loop servo positioning and specially designed motor and actuator assemblies. Ten base mounting points a#}re provided to the customer. The drive is mounted using 6-32 screws; 1/8" max. insertion for the sides, and 1/4" max. inser#}tion for the bottom. The system integrator should allow ventilation to the drive to ensure reliable drive operation over th#}e operating temperature range. The drive may be mounted in any attitude.For additional vibration isolation, an external su#}spension system may be used. 8.0SCSI InterfaceThis section contains a brief summary of the SCSI Interface implemented #}in the CP3200. For additional details regarding the exact command description block format, please refer to the Second Gene#}ration SCSI Interface Manual.8.1SCSI CommandsFormat Unit04HInquiry12HMode Select15HMode Sense1AHRead#}08HRead Buffer3CHRead Capacity25HRead Defect Data37HRead Extended28HRead Long3EHReassign Blocks07HR#}elease17HRequest Sense03HReserve16HRe-zero Unit01HSeek0BHSeek Extended2BHSend Diagnostic1DHSta#}rt/Stop Unit1BHTest Unit Ready00HVerify2FHWrite0AHWrite and Verify2EHWrite Buffer3BHWrite Extended#}2AHWrite Long3FH8.2 Cable RequirementsA 50-conductor flat cable or 25-conductor twisted pair cable is required. The#} maximum cable length is 6.0 meters (19.68 ft.)The cable impedance should be 132 ohm -+10% with a minimum conductor size #}of 28 AWG.8.3Connector RequirementsThe drive connector is a 50-conductor shrouded connector which consists of two rows #}of 25 male pins on 100 mil centers.The recommended mating connector is MOLEX part number 15-29-7950 or equivalent.The pi#}n assignments for this connector are shown in the following table:SignalPin -DB(0)2-DB(1)4-DB(2)6-DB(3)8-DB#}(4)10-DB(5)12-DB(6)14-DB(7)16-DB(P)18GND20GND22GND24TERMPWR26GND28GND30-ATN32GND34-BSY#}36-ACK38-RST40-MSG42-SEL44-C/D46-REQ48-I/O50The minus sign (-) indicates active low. All odd pins#} except pin 25 must be connected to ground. Pin 25 is left open.8.4 Electrical DescriptionThe CP3200 drive uses open c#}ollector drivers. All assigned signals are terminated with 220 ohms to +5 volts and 330 ohms to ground. The termination re#}sistors are removable for multi-device configurations.8.4.1 Output CharacteristicsEach signal driven by the drive has t#}he following output characteristics when measured at the drive connector:Signal Assertion0.0VDC to 0.4 VDCMin. Driver Ou#}tput Cap.48 ma (sinking) at 0.5 VDCSignal Negation2.5 VDC to 5.25 VDC8.4.2 Input CharacteristicsEach signal received #}by the drive must have the following input characteristics when measured at the drive connector:Signal Assertion0.0VDC t#}o 0.8 VDCMaximum Total Input Load-0.4 ma at 0.4 VDCSignal False2.0 VDC to 5.25 VDC8.4.3 Terminator PowerTerminator pow#}er (TERMPWR) is supplied through a diode to prevent the back-flow of power to the drive. TERMPWR has the following charact#}eristics:Supply Voltage4.0VDC to 5.25 VDCMin Source Drive Capability800 maMaximum Sink Capability1.0 ma sink capabili#}ty with a 1.0 amp fuse**Except for the purpose of providing power to an internal terminator. b/