BMW ICOM Manual(1).pdf

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TableofContents
IntegratedCommunicationOpticalModule
Subject
Page
Initial Print Date: 06/08
Revision Date:
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IntegratedCommunicationOpticalModule
(ICOM)
Model:All
Production:All
After completion of this module you will be able to:
• IdentifytheICOMModules.
• ExplainandidentifythepurposeoftheICOMA,B,andC.
• ExplainthepurposeoftheLEDsontheICOMA.
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ICOM
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Introduction
TheIntegratedCommunicationOpticalModule(ICOM)issetofpowerfulvehicleinter-
facestobeusedwiththeIntegratedServiceInformationDisplay(ISID)device.
TheICOMconsistsofthefollowingcomponents:
• ICOM A isthebasiccomponent.Physically,itprovidestheinterfacesforconnec-
tiontothevehicleOBDIIdiagnosticinterfaceontheonehandandtheinterfaces
foradaptiveintegrationintotheworkshopnetworkontheother. Apowerfulcom-
putercoreenablesittoworkasaprotocolconvertertoassumethedatainter-
changebetweenthetesterandthevehiclecontrolunitsaswellasthesignalpro-
cessingforconnectionofthemeasurementsystem(IMIB).Thepowerissupplied
byKL30acrossthevehicleinterface.
• ICOM B istheexternalMOST(MediaOrientedSystemsTransport)interfaceforthe
ICOMA.ItisconnectedtotheICOMAusingthesuppliedUSBcableoracom-
merciallyavailableUSBcableofthetypeA-B.Thepowerissuppliedacrossthe
ICOMAbywayofaUSBcableconnection.
• ICOM C isanintelligentinterfaceadapterthatadaptsthephysicalOBDIItothe
BMWcircularsocket.Asanextendedsupplementarymodule,itconnectsICOMA
tovehicleswithoutanOBDIIfemaleinterface.Thepowersupplyissuppliedatthe
vehiclebywayofKL30fromtheBMW20pincircularsocket.
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ICOM
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ICOMA
TheICOMAisthebasiccomponent.Physically,itprovidestheinterfacesforconnection
tothevehicleOBDIIfemalediagnosticinterfaceconnector.Apowerfulcomputercore
enablesittoworkasaprotocolconvertertoassumethedatainterchangebetweenthe
testerandthevehiclecontrolunitsaswellasthesignalprocessingforconnectionofthe
measurementsystem(IMIB).ThepowersupplyissuppliedbywayofKL30acrossthe
vehicleinterface.TheICOMAisspecifiedratedinelectricaloperationforaminimum
voltageof8V.Stableoperationisonlyensuredifthepowersupplyisabovethemini-
mumvoltagelimit.
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ICOM
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ICOMAVehicleInterfaces
ICOMAvehicleinterfacestothefemale16pinOBDIIvehiclesocket.
OBDIIPin
InterfaceSignal
1
Kl15(Ignitionon)
2
SIAResetsignal
3
EthernetRx+
4
Ground(-)
5
Ground(-)
6
CANHigh
7
K-Line1
8
K-Line2
9
TDSignal(RPM)
10
Notused
11
EthernetRx-
12
EthernetTx+
13
EthernetTx-
14
CANLow
15
Notused
16
KL30(BatteryVoltage)
ICOMAcanbeconnectedtotheworkshopnetworkbyaEthernetLANcable
orwirelessconnectionbyWLAN.Themaximumdatarateis100Mbit/s.
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ICOM
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