Qtech-data-systems Q71 External 1200bps Modem Manuale Utente Scaricare il pdf (Pagina 3)

Q71B–QuickStartGuide–v1.1–April2013

www.qtech.co.nz Tel:033663713



PowerSupplyConnections



TheQ71Bisdesignedtooperatefromasupplyvoltageintherange8.0VDCto15.0VDC.

Asupplyvoltagegreaterthan15.0Vwillblowthe500mAfuseinsidetheQ71B.

Asupplyvoltagelessthan8.0Vwillresultindegradedorunreliableperformance.



TheDATRANXL4RTUandtheeXcel(RevD)RTUhavetwoRS232ports;bothcanuse

theQ71Bforanalogueradiocommunications.

Thesignificantdifferencebetweenthetwoports,isthatthelowerRS232port(RS232-B)

ontheQ22Dhasa+VsupDCoutputsupplyline.TheQ71Bcanbepoweredviathisline,

solongasjumperJ23ontheQ22Disinthe1-2position.RS232-Aportontheprocessor

doesnothavethissupplyline,sotheQ71Bmustbepoweredthroughthethreeterminal

powersupplyconnector,thepowersupplyconnectionsareshownonthetopcover



LeftPin

MiddlePin

RightPin

 PowerSupplyNegative

+ PowerSupplyPositive(8V–15VDC)

Notconnected

  



ThedefaultinstallationpositionoftheQ71BisonthelowerRS232port.

AllnewRTUswillbeconfiguredwiththecorrectjumpersettingforthis.

However,pleasecheckthisjumperonexistingRTUsbeforeusingaQ71B.

IfusingthemodemontheRS232-Bportdonotapplypowerfromboththe

portandtheexternalsupply



IftheDATRANRTUispoweredfroma24VDCsystem:

DonotconnecttheQ71Modemtothis24VDCsupply.

DonotconnecttheQ71modemtotheRS232Bport;usethe12VDCsupply

thattheradiouses&connecttotheQ71powerconnector.



1 2 3 4

Nessun commento

Qtech-data-systems Q71 External 1200bps Modem Manuale Utente Pagina 3