User manual

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 DocumentMT0100P.N
©XsensTechnologiesB.V. MTiandMTxUserManualandTechnicalDocumentation
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6.4.8 Additionalinterfacespecifications
TheMTi&MTxhasadditionalinterfacelinesforsynchronizationand/oranaloginputsupport.Whichfeatures
aresupporteddependsonthetypeofdevice.Seepindefinitionsofthedevice.
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AnalogIN
This line supports in 16 bit sampling of an external analog signal of voltage range 0 to 5V at the sampling
frequency used by the MTi / MTx. A data field is added to the data message which contains the 16‐bit
representation of  the analog voltage. To enable this functionality use the SetOutputMode and
SetOutputSettingsmessageswiththeproperparametersasdefinedinsection5.3.3.
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Specification Value
Inputvoltagerange 0to5V
Inputcapacitance 150pF
ADCresolution 16bit
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AnalogINissupportedbyMTiRS‐232(MTi‐28A##G##)andMTxXbus(MTx‐49A##G##).Forbestperformance,
connecttheAnalogINsignalasclosetotheODUconnectoraspossible.Dismantlethecablecarefullyandread
theconnectioninstructionsinsection6.4.
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NOTE:PleasedonothesitatetocontactXsens([e-mail]
)ifyouhaveproblemstogetAnalogINto
workasexpected.
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SyncIn
ThisdigitalinputcanbeusedtotriggertheMTi/MTxforsynchronizationpurposes.TheMTi/MTxcanwait
until a valid trigger is detected and it either starts sampling or sends the latest calculated data. For more
informationabouttheSyncInsettings(timing,polarity)seetheMTLow‐levelCommunicationDocumentation.
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Thesignalspecificationsarelistedinthenexttable.
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Specification Value
Inputrangehighvoltage 3.0to20V
Inputrangelowvoltage 0.0to0.5V
Inputresistance >100MOhm
Latency(offset=0) 8.6us
Latency(offset>0,notincluding) 12.2us
Jitter 500ns@115k2,
104ns@921k6
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Therecommendeddutycycleis<10%.=1ms@100Hzsamplefrequency.
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Supported by MTi RS‐232 (MTi‐28A##G##), MTi‐68A##G## (MTi RS‐422) and MTx‐28A##G## (MTx RS‐232,
standardversion).

NOTE:Please do not hesitate to contact Xsens ([e-mail]
) if you have problems to get SyncIN to
workasexpected.

SyncOut
Thisisanoutputsignalthatcantriggerotherdevice(s)forsynchronizationpurposes.Thetriggeringinstanceis
relatedtothesamplinginstanceoftheMTi.Thesignalparametersliketype,offset,skipfactororwidthcanbe
customizedusingtheSyncOutsettings.SeetheMTLow‐levelCommunicationDocumentation.
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