SK8811 final specWord文件下载.docx

SK8811 final specWord文件下载.docx

《SK8811 final specWord文件下载.docx》由会员分享，可在线阅读，更多相关《SK8811 final specWord文件下载.docx（36页珍藏版）》请在冰豆网上搜索。

May28,2001

InitialDraft

JaneCao

0.2

Jun8,2001

Verify2.1.2&

2.4

A

Jul7,2001

Add5.15

TableofContents

1General5

2MechanicalSpecifications5

2.1DimensionsandWeight5

2.2MaterialandTexture5

2.3Color6

2.4Detachabilityandcableexit6

2.5ServicesandErgonomics6

2.6Characteristicsofrubberswitches7

2.7keyCapSpecification8

3ElectricalSpecification9

3.1Operatingvoltage9

3.2CurrentConsumption9

3.3PowerConsumption9

3.4SignalTimingandLevel9

3.5Pinoutof6pinmin-DINconnector9

3.6Circuitry9

4FunctionsandFeatures10

4.1OperationModesandIndicators10

4.2KeyboardBuffer10

4.3Typematicdelayandrepeatrate10

4.4PseudoN-Keyrollovercapability11

4.5Freefromillegalghostkeys11

4.6SelfTest12

4.7InterfacespecificationwithhostPC12

4.8LogicSignals12

4.9AT&

PS/2ModeProtocol13

4.10Commandsfromthehost（AT/PS2Mode）14

4.11Commandtothehost（AT/PS2Mode）17

5.EnvironmentalandReliabilitySpecifications19

5.1Temperature&

HumidityTest19

5.2ElevatedTemperature19

5.3ThermalCycle19

5.4TemperatureShock20

5.5DropTest20

5.6VibrationTest21

5.7Rigidity21

5.8StainResistance21

5.9ChemicalResistance22

5.10CrushResistance22

5.11Wearresistance23

5.12UltraVioletLight23

5.13MetalMigration23

5.14CorrosiveEnvironment23

5.15SpillResistance24

6RegulatoryCertification25

6.1Safety25

6.2EMS25

6.3EMI25

7KeyboardScanCode26

7.1Typematiccharacteristics26

7.2ScanCodeTable（Showedasbelow）26

1General

SK-8811（A）isdesignedforIBM.ItisdesignedspecificallytomeettherequirementsofthePCcompatiblecomputermanufacturer.Thisspecificationdefinesmechanical,reliability,dynamic,electricalrequirements.

Thekeyboardisthedetachablespacesaverrubberswitchkeyboard.Itisconfigurablefor106/107/108/109/111keylayoutwithlanguagesaccordingtocustomerrequested.Threespecialfunctionkeys,L-win,R-winandapplicationallowthiskeyboardtobeusedwin95,win98,win2000andNT.

Comparison

Description

SK-8811（A）

SK-8811

Enclosure

Topinsk-8806andButtoninsk-8809

Newtoolwithoutmodular

EMC/Safety

NoMIC

Showedas6.1,6.2&

6.3

PCB

Useconnector,doubleside

Userubberpress,singleside

Cable

2meters,Φ4.5

2meters,Φ3.8

Spillresistance

No

Yes,showedas5.15

2MechanicalSpecifications

2.1DimensionsandWeight

2.1.1Unpacked

（1）Dimensions（Tolerance:

+/-3mm）

LengthDepthHeight

415mm180mm39mm

（2）Weight（Tolerance:

+/-0.1kg）

Measuredbarekeyboard:

0.68kg

2.1.2Packed-Includingpacking/bufferingmaterial

+/-3mm）

445mm221mm（34~58）mm

TheGiftBoxisslopeddesign.

Measuredwithgiftboxandbuffering:

1.0kg

2.2MaterialandTexture

UppercaseworkHI-PS94HB

LowercaseworkHI-PS94HB

BracketHI-PS94HB

KeycapsABS94HB（TECHNOK4forblackccolor）

RubbersheetswitchLIMSRubber

LEDLensPMMA

2.3Color

Uppercasework:

IBMstealthblackorPearlwhite

Lowercasework:

IBMstealthblackorpearlwhite

KeyCap:

Stealthblack,Ravenblackandblueorsagegray,pearl

whiteandsteelblue.

Plasticflipfoot:

IBMstealthblackorPearlwhite

Rubberfoot:

Blackorsagegray

Cableconnector:

Panton2715C

Cable:

IBMlogo:

IBMblueforPearlwhite&

PMS877Cforstealthblack

2.4Detachabilityandcableexit

Thereare4exitsonlowercaseworkforcableroutingpurpose.Cableoutsidesis2metersinlengthanda6pinmini-DINconnector.

2.5ServicesandErgonomics

2.5.1KeycapsheightprofilemeetDINstandardwithheightofCrowunder30mm.

2.5.2LegendprintingonkeycapsmeetsANSIstandard,whichappliestoallkeys,theprintedcharactersarevisiblewithin30cmdistancefromanyviewingangleandprintingcontrastexceeds3:

1（4:

1forblackkeyboard）under500Luxilluminatedbackground.

2.5.3Adjustabletiltlegslocatedinlowercaseworkallowunittobeadjustedtothemostcomfortableangleforusertooperate.

2.5.4Tactilefeelingfeedbackforusersensurespropermakeandbreakforeachkeypress.

2.5.5Suitableanti-slipforcesgivenbyrubberfeetpreventunitfrommovingundernormaloperation.

2.5.6Acousticnoisegeneratedbykeypresslessthan65dBAforspacebarand60dBAforallotherkeys.

2.5.7AwarninglabelcanbelaserprintedonthekeyboardbetweentheQWERTYsectionandthenumerickeypadsection.

2.6Characteristicsofrubberswitches

2.6.1Standardkeyslifecycle

10millionscyclesundernormaloperation.（6cycle/second,15-20lbs.）

after10millionlifecyclesreturnforcenolessthan10grams.

Force

（gram）P1

57g

P2

25g

0.82.03.7mmTravel（mm）

Fig2-1Typicalcurveofforceresponse:

2.6.2Majorspecificationofrubberswitch

PreloadForce:

25.0+-10gram（ISO25-75%ofPeak）

P1Peakforce:

57.0+/-10grams

Travel:

0.8+/-0.25mm

P2Force:

28+/-10grams

2.0+/-0.3mm

Bounce:

5msmax.

Returnforce:

20+/-10grams

Traveltomake:

MakeForce:

37.0+-10grams

Totaltravel:

3.7+/-0.4mm

2.7keyCapSpecification

2.7.1RetentionForce

1.3kgminimumtopullupthekeysfromframe

2.7.2Gaps

Gapsbetweenadjacentroworcolumnofkeys:

1.05+/-0.3mm

2.7.3StaticWobble

Wobbleofkeysisdefinedhereasmovementofpointsfromitsoriginalpositionwhenforceisapplied.

Wobbleundernormaltypingforce:

Forstandardkeys:

<

0.50mm

Forspacebar:

1.65mm

Forotherspecialkeys:

3ElectricalSpecification

3.1Operatingvoltage

Voltagesuppliedtokeyboard:

5+/-0.25VDC

3.2CurrentConsumption

Undernominal5VDCpowersupplied,typicalcurrentconsumptionis75mA+/-10%forEMCIC.

3.3PowerConsumption

Undernormaloperation,themaximumpowerconsumptionwillbelessthan

0.375Watt.

3.4SignalTimingandLevel

LevelandtimingofsignalspresentedondataandclockpinsarecompatiblewithbothTTLorMOSterminationonthehostPCmotherboard.

3.5Pinoutof6pinmin-DINconnector

CompatiblewithIBMPS/26pinDINconnection.

3.6Circuitry

3.6.1PCBA

MicroprocessorEMCCMOStechnologyperformsmostfunctionsinternally.ComponentsandcircuitryarelaidoutandroutedonsinglesidePCB.

3.6.2Membrane

Keymatrixtraceswithswitchcontactfingersarelaidoutandroutedona3layersmembranesheet.Thecontactresistanceislessthan400ohm.

3.6.3ConnectingPCBAandMembrane

MechanicalclampingmechanismprovidescontactbetweenmembraneandPCBAforconnectionscanlinesandreturnlinesonmembranekeymatrixtoPCBAcircuitviacontactfingers.

4FunctionsandFeatures

4.1OperationModesandIndicators

ThreeoperationmodeLEDslocatedonrightuppercornerofuppercaseworkwillactivateindividuallyorincombinationaccordingtodefinitioncompatiblewithIBMATandPS/2.Thethreeindicatorshavethenomenclature‘NumLock’,’CapsLock’and‘ScrollLock’.Theyareactivatedandde-activatedbyreceivingatwobytesystemcommandcodeHexEDXXfromhostPC.

4.2KeyboardBuffer

A16keyFIFObufferstoresthescancodesuntilthehostisreadytoreceivethem.Bufferoverrunoccurswhenmorethan16keysarestoredwithoutbeingsent.Anoverruncodereplacesthe17thkeytobestoredinthebuffer.Additionalkeyspressedwillcauselossofdataifthehostiskeptbusyandthekeyboardisunabletosendoutthecontentsinthebuffer.

4.3Typematicdelayandrepeatrate

Allkeysaretypematic,exceptforthePAUSEkey.Whenakeyispressedandhelddown,thekeyboardwilldelay500msec,thensendthemakecode.Makecodeofthekeybeinghelddownwillbesentrepeatedlyattherateof10.9characterspersecond.Iftwoormorekeysarepressedandhelddown,onlythelastkeypressedwillberepeatedattherepeatrate.Whenthelastkeyisreleased,typematicoperationstops,evenifotherkeysarestillhelddown.Ifakeyispressedandhelddownwhilekeyboardtransmissionisdisabled,onlythefirstkey’smakecodeisstoredinthetypeaheadbuffer.Thispreventsatypeaheadbufferoverflowwhenthetypematicoperationacts.IntheATmode,thetypematicdelayandrepeatratecanbeprogrammable.Thisisdonebycommandfromhost.

DefaultRepeatRateandTypematicDelayare:

Repeatrate:

10.9characterspersecond

Typematicdelay:

500msec

4.4PseudoN-Keyrollovercapability

‘N’keyrollisthenumberofkeysthatmaybehelddepressedsimultaneouslyandhavethekeyboardgeneratetheappropriatecodeforeachpressedandreleasedkeywithoutkeyboardinterruption.AllcombinationsofCtrl,AltandShiftkeysarenotghostkeys.

4.5Freefromillegalghostkeys

Keymatrixlayouthasbeenproperlymanagedsuchthatnoghostkeyoccursforanythreekeycombination.Theghostkeyisdefinedasthreekeycombinationwhereavalidthirdkeyfallsinthe‘#’patterninthekeymatrixformedbytheproceedingvalidtwokeycombination.Normallyinthiscase,thethirdkeywillbemaskedwithoutsendinganycodebecausethethirdkeyandfourthkeyinthis‘#’patternareconfusingthemicroprocessorofthekeyboard.Ifthethirdkeywasnotmaskedproperly,theghostkey—differentkeypresseshavingthesameelectricalconnectioninscanlinesandreturnlinesmatrix–willoccur.

Someexceptionsare