WABCO OptiTire User guide

SYSTEM DESCRIPTION
OptiTireTM
TIRE PRESSURE MONITORING
FOR COMMERCIAL VEHICLES

Table of contents

3
Table of contents
Table of contents
1 General information ......................................................................................................................................... 5
2 Safety information............................................................................................................................................ 9
3 Introduction .................................................................................................................................................... 10
4 System description ........................................................................................................................................ 12
4.1 Basic OptiTire function..............................................................12
4.2 Congurationforbusandtowingvehicle................................................13
4.3 Congurationfortrailers ............................................................15
4.3.1 OptiTireTM in trailer operation................................................................................................... 19
4.4 Expert’sreport/certicates ..........................................................20
4.4.1 ATEX ....................................................................................................................................... 20
4.4.2 Radio approvals ...................................................................................................................... 20
4.4.3 OptiTire RF declaration of conformity...................................................................................... 21
5 Components ................................................................................................................................................... 22
5.1 Sensors .........................................................................22
5.1.1 The external sensor (WM2)..................................................................................................... 23
5.1.2 The internal sensor (WIS) ....................................................................................................... 28
5.2 ECU–Theelectroniccontrolunit .....................................................31
5.3 WABCOdisplay ...................................................................32
5.4 Connectingcables .................................................................33
6 Installation ...................................................................................................................................................... 36
6.1 Safetyinformation .................................................................36
6.2 AssemblyoftheexternalsensorsWM2 ................................................37
6.3 Assemblyoftheinternalsensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.4 MountingtheECUinbus/towingvehicle ...............................................44
6.5 Wiringintowingvehicle/bus .........................................................46
6.6 MountingtheECUinthetrailer .......................................................47
6.7 Wiringintrailer....................................................................48
7 Requirements for the start-up....................................................................................................................... 49
7.1 Training .........................................................................49
7.2 DiagnosticSoftware................................................................49
7.3 Diagnostichardware ...............................................................50
7.4 InstallingtheDiagnosticSoftware .....................................................50
8 Start-up ........................................................................................................................................................... 51
8.1 StartingtheDiagnosticSoftware ......................................................51
8.2 Parametersetting .................................................................51
8.2.1 Reading in a parameter set..................................................................................................... 51
8.2.2 Selection/entry of parameter data ........................................................................................... 51
8.2.3 Stimulating the sensors........................................................................................................... 52
8.2.4 Country-specicadjustments .................................................................................................. 53
8.2.5 Expert parameters................................................................................................................... 53
8.3 Finalisingstart-up .................................................................54

4
Table of contents General information
9 Operation ........................................................................................................................................................ 55
9.1 Warningsignals ...................................................................55
9.2 Switchonofignition................................................................55
9.3 Checkingpressurevalues ...........................................................57
9.4 Displayoffaults ...................................................................58
9.5 Adjustingtirepressures .............................................................59
9.6 Displayofsystemerrors ............................................................60
9.7 DisplayviaSmartBoard .............................................................62
10 Workshop notes ............................................................................................................................................. 63
10.1 Maintenance .....................................................................63
10.2 Replacementandrepair ............................................................63
10.2.1 Replacing an IVTM ECU with an OptiTireTM ECU ................................................................... 63
10.2.2 Replacing 1st generation external sensor with a 2nd generation sensor................................ 63
10.2.3 Wheel change ......................................................................................................................... 63
10.2.4 Replacing PA tubes (external sensor) .................................................................................... 65
10.2.5 Creeping pressure loss ........................................................................................................... 65
10.2.6 No signal received from the sensor......................................................................................... 66
10.3 Disposal/recycling ................................................................68
Edition 1
Version 4 (09.2017)
815 010 229 3 (en)
Thispublicationisnotsubjecttoanupdatingservice.
Youwillndthecurrentversionat:
http://www.wabco.info/i/534

5
General information
1 General information
Abbreviations
ABBREVIATION MEANING
ADR (French:AccordeuropéenrelatifautransportinternationaldesmarchandisesDangereusespar
Route);Europeanagreementconcerningtheinternationalcarriageofdangerousgoodsbyroad
CAN ControllerAreaNetwork;asynchronousserialbussystemfornetworkingcontrolunitsinvehicles
ECAS ElectronicallyControlledAirSuspension
ECU ElectronicControlUnit
GND Ground;earth
TEBS ElectronicBrakingSystemforTrailers
VCS Vario-Compact-System;compactlystructuredABSfortrailers
WIS WheelInternalSensor
WM2 WheelSensor2;externalwheelsensorormodule
Purpose of this document
ThisdocumentdescribesthefunctionandinstallationoftheOptiTireTM tire
pressuremonitoringsystem.
Copyright and trademark notice
Thecontent,particularlytechnicalinformation,descriptionsandgures,
correspondstothestatecurrentatthetimeofprintingandissubjecttochange
withoutnotice.
Thisdocument,includingallitsparts,inparticulartextsandgures,isprotected
bycopyright.Useoutsidethestatutoryorcontractuallimitsrequireauthorisation
bythecopyrightowner.Allrightsreserved.
Anybrandnames,evenifnotindicatedassuch,aresubjecttotherulesofthe
trademarkandlabellingrights.
Symbols used in this document
WARNING Indicates a potentially hazardous situation
Failuretoobservethesafetyinstructioncanresultin
severeinjuriesordeath.
–Follow the instructions in this warning note to
avoidinjuryordeath.
CAUTION Indicates a potentially hazardous situation
Failuretoobservethesafetyinstructioncanresultin
minorormoderatelysevereinjuries.
–Follow the instructions in this warning to avoid
anyinjuries.

6
General information General information
CAUTION Species possible material damage
Notobservingthesafetyinstructioncanleadto
materialdamage.
–Follow the instructions in this warning note to
avoid any material damage.
!Importantinformation,instructionsand/ortipsthatyoumustalwaysobserve.
Referencetoinformationontheinternet
– Action step
ÖConsequenceofanaction
List
Technical documents
– OpentheWABCOINFORMonlineproductcatalogue:
http://inform.wabco-auto.com
– Searchfordocumentsbyenteringthedocumentnumber.
TheWABCOonlineproductcatalogueINFORMprovidesyouwithconvenient
accesstothecompletetechnicaldocumentation.
AlldocumentsareavailableinPDFformat.PleasecontactyourWABCO
partnerforprintedversions.
Pleasenotethatthepublicationsarenotalwaysavailableinalllanguage
versions.
DOCUMENT TITLE DOCUMENT NUMBER
OptiTireTM–SystemDescription 815 XX0 229 3
OptiTireTM–Installationinstructions 815 XX0 230 3
GeneralRepairandTestInformation 815 XX0 109 3
Diagnosis–ProductOverview 815 XX0 037 3
SmartBoard–OperatingInstructions 815 XX0 138 3
TEBSEsystemdescription 815 XX0 093 3
TEBSC/Dsystemdescription 815 XX0 020 3
TX-TRAILERGUARDTM www.transics.com
*LanguagecodeXX:01=English,02=German,03=French,04=Spanish,05=Italian,
06=Dutch,07=Swedish,08=Russian,09=Polish,10=Croatian,11=Romanian,
12=Hungarian,13=Portuguese(Portugal),14=Turkish,15=Czech,16=Chinese,17=Korean,
18=Japanese,19=Hebrew,20=Greek,21=Arabic,24=Danish,25=Lithuanian,
26=Norwegian,27=Slovenian,28=Finnish,29=Estonian,30=Latvian,31=Bulgarian,
32=Slovakian,34=Portuguese(Brazil),35=Macedonian,36=Albanian,97=German/English,
98=multilingual,99=non-verbal

7
General information
Structure of the WABCO product number
WABCOproductnumbersconsistof10digits.
 Productiondate
 Typeofdevice
Variant
 Statusdigit
0=Newdevice(completedevice);1=Newdevice(subassembly)
2=Repairkitorsubassembly;4=Componentpart;7=Replacementdevice
R=Reman
Choose genuine WABCO parts
GenuineWABCOpartsaremadeofhighqualitymaterialsandarerigorously
testedbeforetheyleaveourfactories.Youalsohavetheassurancethatthe
qualityofeveryWABCOproductissupportedbyanoutstandingWABCO
customerservicenetwork.
Asaleadingsuppliertotheindustry,WABCOcollaborateswiththeworld’s
leadingoriginalequipmentmanufacturers,andhastheexperienceand
capacitiesrequiredtoalsosatisfythemoststringentproductionstandards.The
qualityofeverygenuineWABCOpartissupportedby:
Toolingmadeforserialproduction
Regularauditsofsuppliers
Exhaustiveend-of-linetests
Qualitystandards<50PPM
Installing replica parts can cost lives – genuine WABCO parts protect your
business.
WABCO additional services
ThepackageyouwillgetwithagenuineWABCOpart:
24-monthproductwarranty
Overnightdelivery
TechnicalsupportfromWABCO
ProfessionaltrainingcoursesfromtheWABCOAcademy
AccesstodiagnosticstoolsandsupportfromtheWABCOServicePartner
network
Straightforwardclaimshandling
Condencethatthevehiclemanufacturer’srigorousqualitystandardsare
met.
WABCO Service Partner
WABCOServicePartners–thenetworkyoucanrelyon.Youcanaccess2000
highqualityworkshopswithmorethan6000specialistmechanics,alltrained
toWABCO’sexactingstandardsandequippedwithourmostup-to-the-minute
systemsdiagnosticandsupporttechnology.

8
General information Safety information
Your direct contact to WABCO
Inadditiontoouronlineservices,trainedmembersofstaffaretheretohelpyou
atourWABCOServicePartnerstodirectlyansweranytechnicalorbusiness-
relatedquestionsyoumayhave.
Contactusifyouneedassistance:
Findtherightproduct
Diagnosissupport
Training
Systemsupport
Ordermanagement
YoucanndyourWABCOpartnerhere:
http://www.wabco-auto.com/en/how-to-nd-us/contact/

9
Safety information
2 Safety information
Observe all required provisions and instructions:
Readthispublicationcarefully.
Adheretoallinstructions,informationandsafetyinformationtopreventinjury
topersonsanddamagetoproperty.
WABCOwillonlyguaranteethesafety,reliabilityandperformanceoftheir
productsandsystemsifalltheinformationinthispublicationisadheredto.
Alwaysabidebythevehiclemanufacturer'sspecicationsandinstructions.
Observeallaccidentregulationsoftherespectivecompanyaswellas
regionalandnationalregulations.
Make provisions for a safe work environment:
Onlytrainedandqualiedtechniciansmaycarryoutworkonthevehicle.
Usepersonalprotectiveequipmentifrequired(safetygoggles,respiratory
protection,earprotectors,etc.).
Ensurethattheworkplaceisdryandprovidedwithsufcientlighting.
Pedalactuationscanleadtosevereinjuriesifpersonsareinthevicinityof
thevehicle.Makesurethatpedalscannotbeactuatedasfollows:
– Switchthetransmissionto"neutral"andactuatetheparkbrake.
– Securethevehicleagainstrollingbyusingchocks.
– Fastenanoteclearlyvisibletothesteeringwheelindicatingthatwork
isbeingperformedonthevehicleandthatthepedalsarenottobe
actuated.

10
Introduction Introduction
3 Introduction
WABCOOptiTire™isthenextgenerationoftirepressuremonitoringfor
commercialvehiclesandreplacesthepredecessorsystemIVTM.
OptiTire™wasspeciallydevelopedtoreducetherunningcostsforeetsand
increasesafety.
Reduced downtimes, extended tire life
Theneedtomaintainthecorrecttirepressureseemsself-evident,butinreality
thetirepressureischeckedfartooinfrequently.Timepressure,inattention
andcomplacencyaresomeofthereasonsforthis.Anofcialstudyhasfound
thatmorethan30%ofalltruckbreakdownsarecausedbytireissues.Further
studieshaveshownthateven15%over-orunder-inationcanreducethelifeof
atirebymorethan10%.
Withunder-inatedtiresthereisanincreasedriskofsustainedoverheating.
Thiscancauseterminaldamagetothecasing.WABCOOptiTireTMhelpsto
maintainthecorrecttirepressureandtodetectslowpuncturesearly.
Downtimes
Tiredamageisthemostfrequentreasonforcommercialvehiclevehiclestobe
outofservice.
Verbrauchsstoffe
4 %
Bremsen
6 %
Motor
21 %
Reifen
32 %
Elektrik
29 %
Sonstiges
8 %
Cut fuel costs, minimise CO2emissions
Fuelisthelargestvariablecostforeetoperators.Withdieselpricesmore
frequentlygoingupthandown,fueleconomyisofparamountimportance.
Studiesbythetireindustryhaveconrmedthattheincreasedrollingresistance
ofunder-inatedtireshasanegativeimpactonfuelconsumptionandincreases
CO2emissions.Tiresthatmaintainthecorrectairpressure,ontheotherhand,
canreducefuelconsumptionbyupto2%andreduceCO2emissions.

11
Introduction
Fuel efciency
Aconstantly17%under-inatedtireleadsupto1,400litresincreaseinfuel
consumption(200,000kmannualmileageforlonghaulapplications).
0%
-2%
10%
-10%-20%-30%
20% 30%
2%
4%
6%
8%
-40%-50%
10%
-60%
0%
-10%
10%
-5%-15%
-20%
-25%-30% 15%
-20%
20%
-30%
25%
-40%
30%
5%-10%
-50%
Änderung des Kraftstoffverbrauchs [%]
Abweichung vom empfohlenen Reifendruck [%]
Abweichung vom empfohlenen Reifendruck [%]
Zu niedriger Druck Zu hoher Druck
Verkürzung der Reifenlebensdauer [%]
Zu hoher DruckZu niedriger Druck
Life of the tires
Adeviationof15%fromtherecommendedtirepressurereducesthelifeofatire
bymorethan10%.
0%
-2%
10%
-10%-20%-30%
20% 30%
2%
4%
6%
8%
-40%-50%
10%
-60%
0%
-10%
10%
-5%-15%
-20%
-25%-30% 15%
-20%
20%
-30%
25%
-40%
30%
5%-10%
-50%
Änderung des Kraftstoffverbrauchs [%]
Abweichung vom empfohlenen Reifendruck [%]
Abweichung vom empfohlenen Reifendruck [%]
Zu niedriger Druck Zu hoher Druck
Verkürzung der Reifenlebensdauer [%]
Zu hoher DruckZu niedriger Druck
Reduce risk, improve safety
Incorrecttirepressureisdangerousandmayentailthefollowingrisks:
atirefailure
adeteriorationinvehiclehandling
extendedbrakingdistances
WABCO’s OptiTireTMhelpsmaintaintirepressureattherecommendedlevel,
preventingtiredamageandenhancingeetsafety.
!OptiTireTMcannotannouncesudden,extremetiredamagecausedbyexternal
effects.

12
System description System description
4 System description
ThischapterdescribeshowtheOptiTireTMsystemoperates.Furthermore,
youwillalsoobtaininformationconcerningtechnicalreportsforinstallingand
retrotting.
4.1 Basic OptiTire function
Solo bus
ACB
A
A
A
C
B
A1 A2
LEGEND
ASensors:
externalsensorWM2(A1)orinternalsensorWIS(A2)
BElectronicControlUnit(ECU)
CDisplay
Measurement
Thetirepressureismeasuredbysensors.Themeasuredvaluesarerepeatedly
transmittedtotheelectroniccontrolunitbyradiosignal.
TheactualtirepressureofeachwheelistransmittedtoacentralECU.The
signalsofallwheelsareevaluatedthereandtheinformationisconveyedtoa
displayinthedriver'scab.
Evaluating
IntheECU,themeasuredvaluesarecomparedtooneanotherandtostandard
valuesstoredasaparametersetintheECU.
AsingleOptiTireTMECUcanmonitorupto20wheels+2sparewheels.Dual
tiresaresensedseparately.
Awarningissignalledintheeventofacriticaldeviation.

13
System description
Normalpressureuctuationsduetodrivingmode,ambienttemperature
changesorloadareltered.
TheOptiTireTMsystemtoleratesthesetypicalpressureuctuationsevenonpoor
roadsectionsorwithunevenload.
Display
WABCOisoffersadriver'sdisplayforthedashboardforindicatingwarning
messagesandrequestingtirepressureinformation.
Alternativelythedatacanalsobetransmittedtoanintegrateddisplay,
SmartBoardorTX-TRAILERGUARDTM(telematics).Detaileddescriptionofthe
displayfunctionseechapter9"Operation",page55.
4.2 Conguration for bus and towing vehicle
SelectionofOptiTireTMcomponentsdependsonvehicletype,typeandnumber
ofwheelsandtypeofsystemsconnectedtoOptiTireTMbutnotonthevehicle
systemvoltage.
ECU
Trucks,busesorarticulatedbusesareequippedwiththeECU(WABCOpart
number:4462201000).
Display
Inthecaseoforiginalequipment,thetirepressuresareretrievedbyacentral
on-boardcomputerviaCANanddisplayedonanintegrateddisplayinthe
dashboard.
Ifretrotted,theWABCOdisplay(WABCOpartnumber:4462210000)isused
forretrievingthetirepressures.
Sensors
Selectsensorsandcounterweightsaccordingtotheiraxleconguration.
Thetablecontainscomponentsforthreevehicletypeasexamples.Further
informationinthechapter"Components",seechapter5"Components",page
22.
WABCO Bridge congurator
WABCOoffersanonlinecongurator"WABCOBridge"forthe
congurationofOptiTireTMfordifferentvehicles(towingvehicle,
bus,semitrailer).
– OpenthemyWABCOwebsite:
http://am.wabco-auto.com/welcome/
HelponloggingincanbeobtainedbypressingtheStep-by-step
instructionsbutton.
Afterthesuccessfulregistrationyoucanusetheonlinecongurator
WABCOBridgeviamyWABCOtocarryoutyourownconguration
oftheOptiTireTMsystem.
PleasecontactyourWABCOpartnerifyouhaveanyquestions.

14
System description System description
Example: Parts list for bus / towing vehicle (with external sensors WM2)
WABCO PART
NUMBER COMPONENT COMMENT 4X2 6X2
ARTICULATED
BUS 6X2
446 220 100 0 ECU CommunicationwithtrailerECU/
warninglamps
1 1 1
446 220 000 4 Mount SupportformountingtheECU 1 1 1
446 221 000 0 Display Displayofwarningmessagesand
retrievingtirepressures
1 1 1
894 607 390 0
+adapter
894 600 001 2
Wiringharness Cableset7-pin
optional8946072950(5-pin,notrailer
operation)
1 1 1
960 731 051 0 Externalsensor,
L-shape
Forfrontaxle,rim22.5",10holes 2 4 2
960 731 031 0 Externalsensor Forrearaxle,rim22.5",10holes 4 4 8
960 905 822 4 Weightplate Counterweightsforfrontaxlesensor 2 4 2
960 731 802 0 PAtube Forfrontaxlesensor,L-shape 2 4 2
960 731 822 2 PAtube Forrearaxlesensor,outside 2 2 4
960 731 804 0 PAtube Forrearaxlesensor,inside 2 2 4
960 731 801 0 PAtube SuperSingle 2 2 4
Example: Parts list for bus / towing vehicle (with internal sensor WIS)
WABCO PART
NUMBER COMPONENT COMMENT 4X2 6X2
ARTICULATED
BUS 6X2
446 220 100 0 ECU CommunicationwithtrailerECU/
warninglamps
1 1 1
446 220 000 4 Mount SupportformountingtheECU 1 1 1
446 221 000 0 Display Displayofwarningmessagesand
retrievingtirepressures
1 1 1
894 607 390 0
+adapter
894 600 001 2
Wiringharness Cableset7-pin
optional8946072950(5-pin,notrailer
operation)
1 1 1
960 732 000 0 Internalsensor Internalsensortobeattachedtoa
specialvalveset
6 8 10
960 732 100 0 Valveset Exactdesignofthevalvedependson
therim
6 8 10
Circuit diagrams
– OpentheWABCOINFORMonlineproductcatalogue:
http://inform.wabco-auto.com
– Searchthedesiredcircuitdiagrambyenteringthe10digit
number:
8418019700(solobus)
8418019710(articulatedbus)
8418019720(tractor/truck)

15
System description
4.3 Conguration for trailers
Transmission types
TodisplaytheOptiTireTMdataofthetrailerinthedriver’scabin,boththetrailer
andtowingvehiclemustbeequippedwithOptiTireTMincombinationwiththe
externalsensorWM2ifcommunicationisimplementedviaradiolink.
Alternatively,thetrailerdatacanbedisplayedinthetowingvehicleifitis
equippedwithanintegrateddisplay.Whenthetrailerisalsoequippedwith
WABCOTrailerEBS,thedatacantransferredtothetowingvehicle’scentral
computerviaCAN.
Thefollowingillustrationscomparebothtransmissiontypes,wirelessconnection
andCANbus,witheachother.
Data transmission via a CAN bus
Data transmission via radio link
!Thedatacanonlybetransmittedviaaradiolinkifboththetowingvehicleand
thetrailerareequippedwithexternalsensors.
LEGEND
ADisplay
BSensors
CECU
DWirelessconnection
ETrailerECU
FIntegrateddisplay
GCentralcomputer
HTEBSmodulator
*) Incombinationwithexternalsensorintowingvehicleandtrailer

16
System description System description
Stand-alone trailer towing operation
IfthetrailershouldbeindependentlyequippedwithOptiTireTM,thepressure
releasecanbecarriedoutviatelemetryorthevehiclesowndisplay.When
usingtheOptiTireTMdisplay,itrequiresaspecialboxforsplashprotection
oranotherprotectedinstallationposition.TheWABCOSmartBoardcanbe
installedasanalternative.
ThedrivercannotreceivefaultmessageswithoutOptiTireTMsupportwhilethe
towingvehicleisinmotion.
YouwillndfurtherinformationintheTEBSEsystemdescriptionsee section
"Technicaldocuments"onpage6.
OptiTireTM with several trailers
Equipmentoftractor/trailercombinationswithmorethanonetrailerispossible.
Tractor/trailercombinationswithtwotrailerscanstillbemadewithwireless
connections;roadtrainsneedCANbusconnectionwithspecialECUs.
PleasecontactyourWABCOpartnerformoreinformation.
OptiTireTM with TEBS D or TEBS E
TheinstallationinavehiclewithTEBSDorTEBSEissimplebecauseinthis
caseonlypre-assembledcablesneedtopluggedin.Othersystemswould
requireopenwiringthatneedstobeenclosedbyprotectivehousing.
YouwillndfurtherinformationintheTEBSEsystemdescriptionsee section
"Technicaldocuments"onpage6.

17
System description
Wiring diagrams for trailers
Circuit diagrams
– OpentheWABCOINFORMonlineproductcatalogue:http://inform.wabco-auto.com
– Searchthedesiredcircuitdiagrambyenteringthe10digitnumber.
Circuit diagram 841 801 943 0 "Trailer ABS VCS"
Cableposition8(WABCOpartnumber:449314XXX0)
isopenedandconnectedtocableposition3(WABCO
partnumber:4496742730)andalinetothestoplight.
Note: If the OptiTireTM system is installed instead of
the IVTM system, additionally use the adapter cable
with the WABCOpartnumber:8946000012.
Circuit diagram 841 801 941 0 "Trailer EBS without
CAN connection"
Cableposition8(WABCOpartnumber:449614XXX0)
isopenedandconnectedtocableposition3(WABCO
partnumber:4496742730)andalinetothestoplight.
TheISSoutputmustnotbeusedandneedstobesetto
0km/h.
Note: If the OptiTireTM system is installed instead of
the IVTM system, additionally use the adapter cable
with the WABCOpartnumber:8946000012.
Circuit diagram 841 801 945 0 "Trailer EBS D mit
CAN"
Connectionisimplementedusingcableposition3
(WABCOpartnumber:449377XXX0/449378XXX0).
TheISSoutputmustnotbeusedandneedstobesetto
0km/h.
TheOptiTireTMdiagnosisiscarriedoutusingdiagnostic
cable4463003292viatheTrailerEBSdiagnosticport.
Note: If the OptiTireTM system is installed instead of
the IVTM system, additionally use the adapter cable
with the WABCOpartnumber:8946000012.
Circuit diagram 841 801 940 0 "Trailer ECAS"
Thecableposition3(WABCOpartnumber:
4496742730)isfedintobottomboxoftheECAS-ECU
andconnectedthere.
Onecabletostoplight(position7)isinstalled
additionally.
Youneedscrewedcableglands(PG11:8941303122)
fortwocables.
Note: If the OptiTireTM system is installed instead of
the IVTM system, additionally use the adapter cable
with the WABCOpartnumber:8946000012.

18
System description System description
Circuit diagram 841 801 913 0 "Trailer EBS D with
CAN and SmartBoard"
(fromyearofmanufacture2004)
TheSmartBoardandOptiTireTMareconnectedtothe
TrailerEBSDmodulatoronportIN/OUT2.
CAN2mustbeactivatedviatheDiagnosticSoftware.
1TrailerEBSDmodulator(WABCOpartnumber:
480 102 014 0)
2Cablefamily(WABCOpartnumber:449377XXX0)
3SmartBoard(WABCOpartnumber:4461921100)
4 OptiTireTM-ECU
5Distributorhousing
Note: If the OptiTireTM system is installed instead of
the IVTM system, additionally use the adapter cable
with the WABCOpartnumber:8946000012.
Circuit diagram 841 802 066 0 "Trailer EBS E"
Thecircuitdiagramshowsdifferentconnectionoptions
withTrailerEBSE.
1StandardTEBSE(WABCOpartnumber:
480 102 03X 0)
2PremiumTEBSE(WABCOpartnumber:
480 102 06X 0)
3Multi-VoltageTEBSE(WABCOpartnumber:
480 102 08X 0)
4 OptiTireTMECU(WABCOpartnumber:4462201100)
6SmartBoard(WABCOpartnumber:44619211X0)
10Cable(WABCOpartnumber:449913XXX0)
11Cable(WABCOpartnumber:449916XXX0)
12Adaptercable(WABCOpartnumber:8946000012)
16Cable(WABCOpartnumber:449627XXX0)
AdditionalGIO5options

19
System description
4.3.1 OptiTireTM in trailer operation
Operating mode
TheOptiTireTMsysteminthetraileroperatesself-sufcientlyifsuppliedwith
power.
TirepressurescanbedisplayedwiththeSmartBoard.Inaddition,thetire
pressureinformationistransmittedtothetowingvehicleviatheISO7638CAN
connection.
!NotalltowingvehiclesdisplaythetirepressurestransmittedviaCANinthe
dashboard.Pleasecontactthemanufacturerofthetowingvehicleifyouhave
anyquestionsonthissubject.
Alternativelythetrailer’stirepressurescanbetransmittedtotheOptiTireTM in
thetowingvehiclebymeansofaradio.
Thiswirelesstransmissioncanonlyoccuriftheexternalsensorsarecongured
onbothvehicles.
Apartfromthedisplayoftrailertiredatainthetowingvehicle,thisdatacanalso
betransmitteddirectlytothehaulagecompanybymeansoftelematics.The
combinationofOptiTireTMwithTX-TRAILERGUARDTMisofparticularinterestif
thetraileristransportedbysubcontractorsorrentedtothirdparties.
Automatic trailer recognition
ThetowingvehicleECUautomaticallydetectsthecombinationwithatrailer
ECU:Thestoplightisenabledontowingvehicleandtrailerwhenhittingthe
brake.ThetrailerECUradiosasignalwiththisvoltagepulsethatisexpected
bythetowingvehicle'sECUthatinstant.Thetowingvehiclethusclearlydetects
thatthetrailerbelongstothetractor/trailercombinationandsubsequently
transmitstrailerECUmessagestothedisplay.
Astrailersareusuallynotpermanentlypowered,itispossiblethatduetothe
frequencyofsensortransmissionthetirepressuredataforallthewheelsofthe
trailerisnotavailableinthedisplayforupto21minutesafterstartingthedrive–
dependingonthesensorused.

20
System description System description
4.4 Expert’s report / certicates
Expert’sreports/CerticatesformountingandadditionalmountingofOptiTireTM
areavailable,whichsignicantlyfacilitateapprovalofvehicleregistration
papers.Customersmustalsoincludetherelevantdetailsintheoperating
instructions.
– OpentheWABCOINFORMonlineproductcatalogue:
http://inform.wabco-auto.com
– Searchforthedesiredexpert’sreport/certicatebyenteringtheindexword
"OptiTire".
4.4.1 ATEX
AstheWM2hasitsownbatteryandisattachedtotheoutsideofthewheel,
itfallsundertheATEXdirectivetobeusedasexplosion-proofequipment
forpotentiallyexplosivegasatmospheresuptozone1.Itfullstherelevant
requirements.
Expert’s report / certicate
WM2:AssociatedEUtypetestcerticate
TÜV 04 ATEX 2418 X
ApplicationareaADR(G:potentiallyexplosivegas
atmospheres):
II2GExibIICT4
!Thedeviceisratedasbeingasmallpieceofelectricalequipment,andtherefore
themarkingdoesnotcontainthecompleteinformationinaccordancewith
directivesorstandards.ThemanufacturerofthesensorisWABCOGmbH,Am
LindenerHafen21,30453Hanover.
4.4.2 Radio approvals
TheOptiTirecomponentscontainaradiotransmitterforthe433MHzISM
waveband.Theoutputpowerislessthan1mW.Thefollowingapprovalsare
available:
Expert’s report / certicate
CE:2014/53/EU(RED)
FCC:Part15
IC:RSS-210Issue8,RSS-GENIssue4,RSS-102Issue5
!Inaccordancewith2014/53/EU,Article12,Paragraph3,themanufacturer
canbecontactedatthefollowingaddress:
WABCOEuropebvba,ChausseedeLaHulpe166,1170Brussels(Belgium).