Manual

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CONNECTIONS
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ECTIONS
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CONNECTIONS
CONNECTIONSCONNECTIONS
CONNECTIONS
ThissectiondescribesthefunctionandconnectionstothevariousconnectorsontheQ80Module.
Power Supply
Power SupplyPower Supply
Power Supply
The Q80Moduleis designed tooperate withaDC powersupplyvoltage of nominally12 volt. The Q80 Module
drawsapproximately80mAinStandby,100mAonReceiveand1.2AonTransmitat5Wattsoutput.
Thepowerconnectorisa3wayconnectorlocatedonthebottompaneloftheQ80Moduleandislabelled‘PWR’.
Theconnectionstothepowerconnectorare:
G Ground,thenegativeleadofthepowersupply.
+IN Thepositiveleadofthepowersupply.
CTL TheremotepowerON/OFFcontrolinput.
Note TheQ80 Module has a2 ampfuse ontheQ80Motherboardto protect theunitunder fault conditions or
when reversed polarity or over-voltage power supplies are connected to the module.  Refer to the
TechnicalNotesfordetailsonhowtoreplacethisfuse.
The DC power supply to the Q80 Module must be adequately smoothed and be free from noise and voltage
transients.WheretheDCsupplyisderivedfromtheACmains,orbatterieswithanassociatedACmainsbattery
chargerthesedevicesmustcomplywiththerequiredelectricalregulations.
Note ThemaximuminputvoltagetotheQ80Moduleis15volts.Inputvoltagesinexcessof15voltswillblow
theinternal2ampfuse.
ThepowersupplyoftheQ80ModuleincludesaremotepowerON/OFFcontrolline.ThisallowstheQ80Moduleto
beswitchedON/OFFremotelybyaQ22–DATRANeXcelmodulewhenthesystembatteryvoltagedropstoolow.
ThisfeaturepreventstheQ80Modulefromtotallydischargingthesystembatteryandeliminatesthepossibilityof
erraticoperation.
TheremotepowerON/OFFcontrollineshouldbeconnectedtothe
‘+’ terminaloftheQ22DATRANeXcelModule
powerconnector.InmostotherapplicationstheremotepowerON/OFFcontrollineisleftopenandjumperJ1is
installed.
Theremotepowerswitchingcontrolinput‘CTL’onthepowerconnectorfunctionsasfollows:
 CTL=12voltsisQ80poweredup.
 CTL=0voltsisQ80powereddown.
Modem Connector
Modem ConnectorModem Connector
Modem Connector
The 6 wayDINsocket labelled ‘RTU’onthebottompanel of theQ80module acceptsa standard QTech Radio
PatchCordforinterfacingto
QTech RTUmodules.Thisradiopatchcordmaybeinstalledeitherwayaround,i.e.
eitherendofthepatchcordmaybepluggedintotheQ80Module.Theotherendofthepatchcordplugsintothe
socketlabelled‘RADIO’ontheassociatedRTU.
ForcustomerspecificapplicationsoftheQ80Moduletheconnectionstothe6wayDINModemsocketare:

RadioPatchCordConnections

PinNo.

Function

1 Audioinput/output
2 Audioinput/output
3 +12voltsinterfacesupply
4 Transmitkeyline
5 Ground&cablescreen
6 Busyoutput

Thepatchcordshouldbeconstructedusinggoodqualitymetal6way270ºDINplugs.Forshortpatchcordsupto
200mm inlength6 way,stranded, multi-core, circular, unscreenedcable maybe used.  Forlonger length patch
cordsscreenedcableshouldbeused.ThescreenshouldbeconnectedtotheGroundPinNo5.