iControlIncorporated http://www.iControlInc.com Background miKEYOperations ThemiKEYkeyfobisasmall,batterypowered802.15.4compliantradiotransmitter.AmiKEYhasone LEDandthreebuttonsandresemblesthekeylessentrydevicefoundwithmostmoderncars. TheintentofthemiKEYistoallowcontrolofamLOCKattimeswhennoothercommunicationlinkis possible.Forexample,atruckdrivermaycarryamiKEYalongwithcargowhichissecuredbyanmLOCK sothat,inthecaseofanunscheduledinspection,hecouldunlockandthenrelockthecargo. Operation Therearethreebuttonsonthekeyfob:
Powerbluebuttonlocatedtopleft.Thisbuttonispressedandheldtopowertheradiotransmitter andtobegintransmissionofa1secondburstofradiotraffic.TheLEDwillilluminate(andpossibly blink)forthedurationofthebuttonpress. Note:theothertwobuttons(grey)areintendedforfutureuseandcurrentlydonothing.Thesebuttons donotpowerthedevice,andthereforewouldhavetobeheldincombinationwiththePowerbutton. LED Power iControlIncorporated http://www.iControlInc.com EachmiKEYistypicallypairedwithonemLOCK.Thetwodevicessharecommonconfigurationwhich mayinclude:channeldesignations,encryptionkeys,andaddressinginformation.Itisalsopossibleto configureaonetomanyscenariowherebyonemiKEYcouldcommunicatewithmanymLOCKs. Maintenance ThemiKEYusesasmallreplaceablebattery.Batteryreplacementiscurrentlyonlydonebythe manufacturer. RadioTransmission WhenthePowerbuttonispressed,the802.15.4radiowilltransmitaburstofapproximately100frames withashort(severalmilliseconds)gapbetweenframes.Thedurationoftheburstwillbe approximately1secondoruntilthemiKEYreceivesanacknowledgmentfromthetargetedmLOCK.The intentoftheburstistosignalamLOCKwhichmaybeinalowpowerstate.WhenthemLOCKreceives oneoftheframesintheburstitwillacknowledgethesignalandtheburstwillterminate.Whenthis occurs,theLEDonthemiKEYwillblinkonce.AllcommunicationbetweenthemiKEYandthemLOCKis doneusing802.15.4dataframeswhicharetypicallyencrypted. 802.15.4Channels TheIEEE802.15.4specificiondefinesasetofchannels:11(2405MHz)though26(2480MHz).AmiKEY willtypicallybeconfiguredtoutilizetwoofthesechannelsknownasthewakeandsleepchannels. Thesignalburstconsistsofoneframeonthewakechannelfollowedbyrepeatedframesonthe sleepchannel.IfanmLOCKisnotinlowpowermode(i.e.awake)itwillrespondimmediately, otherwiseitwillrespondtothefirstsleepframeitreceives. iControlIncorporated http://www.iControlInc.com FCC NOTICE:
FCCID:W2EMIKEYV13 FCC COMPLIANCE:
miKEY miKEY_V13
!Warning:ThisdevicecomplieswithPart15of theFCCRules.Operationissubjecttothe followingtwoconditions:1)Thisdevicemaynot causeharmfulinterferenceand2)Thisdevice mustacceptanyinterferencereceived,including interferencethatmaycauseundesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna. 2. Increase the separation between the equipment and receiver. 3. Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. 4. Consult the dealer or an experienced radio/TV technician. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference 2. This device must accept any interference received, including interference that may cause undesired operation. iControlIncorporated http://www.iControlInc.com FCC WARNING:
Modifications not expressly approved by the manufacturer could void the users authority to operate the equipment under FCC Rules. This equipment has been evaluated in accordance with the FCC bulletin 56 Hazards of radio frequency and electromagnetic fields and bulletin 65 Human exposure to radio frequency and electromagnetic fields. Safe operation in an uncontrolled environment will result if the following distances from the device are maintained as a minimum.