Queclink GV75W - Digital Output

GV75WUserManual  
TRACGV75WUM001 ‐12‐
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3.6. DigitalOutput
TheoutputsareOpen‐Draintypewithnointernalpull‐upresistorwhichcanbeusedtocontrolarelay.
Itmeansthattheuserhastoconnectapull‐upresistororarelaycoilbetweentheoutputpinand
any positive voltage (32V max) to generate correct output. Eachoutputcandriveacontinuous
currentof0.15A.
Thegreenwireislowside150mAmax,andthebluewireislowside150mAmaxwithlatch.
Theelectricalconditionsareshowninthefollowingtable:
Table8:ElectricalConditionsofDigitalOutputs
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Note:
Therelayoutputcanbelatchedbythesoftware,soeveniftheGV75Wisrestartedorpowereddown
insomecases,therelayoutputwillnotchange.Tousethelatchfunction,themainpowerandbackup
batteryshouldbeconnected.Otherwisetherelaywillalwaysbeinnormallyclosedstate.
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Digitaloutputsareusedforcutting/restoringGND.Theconnectionsareshownbelow. 
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Figure5:ConnectiontoDriveanLED 
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Figure6:ConnectiontoDriveaRelay 
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Note: Alloutputsare internally pulled up to PWRpinby a diode. Sonoexternalflybackdiodeis
neededwhentheoutputisconnectedtoaninductiveload.
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LogicalState ElectricalState
Enable <1.5V,drivecurrentis0.15A
Disable Openorthepull‐upvoltage(max32V)