Description:
ThisRFKeyboardisaGFSK (Gaussian Frequency ShiftKey)Transmitterforthefrequency
band2.4to 2.483 GHzISMband. TheRFKeyboardoffersalowpowerconsumption,multi-channel,
anddataratesupto1MKbps,full-integratedFrequency synthesizerandahighefficiency power
amplifiertodrivealoop antenna,Aspecialcircuitdesign andan uniquepoweramplifierdesign are
usedforlongerdistance requirements.
ThisRFKeyboardspecification applies88 key membranekeyboardwith amechanicaltrackball,
8multimediakeys,andmodern scroll wheelswhicharefullycompatiblewithIBMPCATsystem.Its
scissorswitch isgenerallyquiet;thekeysrequirelittleforcetopress.Thissortofkeyboardtechnology
ismainlyandcommonlyusedin laptops.
1.1.Batteries:2AA batteriesaredesignatedtobeusedin RFKeyboardto support up to 3
monthsintermsofnormalusage.
1.2.RestrictedSubstancesandEnvironmentalRequirements:all thematerialsand
manufacturingprocess usedtoproductRFKeyboardmustcomplyto RoHS requirements.
Westatethatall thematerialsusedin theproductspecification compliestoRoHS
requirements.
1.2.3.
1.3.ErgonomicsRequirements:
1Thisproductwas designedtobeergonomicsforall users.
1.3.1Theergonomicskeyboarddesign isto fitintousers palmstoreducethediscomfort
causedbylongtimeusage.
1.3.2Thesymmetricaldesign istobefitforboth left-handedandright-handedusersto
reduce thediscomfortorstrain causedtousers.
1.3.3Everykey designedontheRFKeyboardistobedesignedeasytoreachforusersfor
easyusabilityandreduce strain.
2ProductFunctionalRequirements:
1.2.4.1Operation System:needstobefunctionalwhen workingunderCustomerSystem.
1.2.4.2Interface:ReceiverneedstobeworkingunderUSB1.1and2.0Interface.
1.2.4.3RangeRequirements:thetransmission oftheRFKeyboardshall beatleast30-50
meterswithopticalfilterinplace.
1.2.4.4RFProtocol:UsingTopSeedStandardRFprotocolwithHIDDriver.
1.2.4.5Frequency Range:2.4to 2.483 GHz(16 multichannelsand65535 ID channelsfor
Keyboard)
1.2.4.6Batterylife:2AA batteriestoprovideatleast3monthsnormalusage.