Axis Q1775 - Power, Serial, and Video Connectors; Performance Considerations

AXISQ1775NetworkCamera
Technicalspecifications
Powerconnector
2-pinterminalblockforAC/DCpowerinput.UseaSafetyExtraLowVoltage(SELV)compliant
limitedpowersource(LPS)witheitheraratedoutputpowerlimitedto≤100Woraratedoutput
currentlimitedto≤5A.
RS485/RS422connector
TwoterminalblocksforRS485/RS422serialinterfaceusedtocontrolauxiliaryequipmentsuchaspan-tiltdevices.
Two2-pinterminalblocksforRS485/RS422serialinterface.Theserial
portcanbeconguredtosupport:
•Two-wireRS485halfduplex
•Four-wireRS485fullduplex
•Two-wireRS422simplex
•Four-wireRS422fullduplexpointtopointcommunication
FunctionPinNotes
RS485/RS422RX/TXA
1
RS485/RS422RX/TXB
2
(RX)ForfullduplexRS485/RS422
(RX/TX)ForhalfduplexRS485
RS485/RS422TXA
3
RS485/RS422TXB
4
(TX)ForfullduplexRS485/RS422
Videoout
RCAconnectorsforcomponentorcompositevideoout.
•Componentvideoout(Y/Pb/Pr)forHDTVvideo,e.g.anentrancecameraconnectedtoanHDTVscreen.
•Compositevideoout(CVBS)-foreasyinstallationusingavideomonitor.CVBSisavailablefor2minutesafterpressing
thebuttonandshouldonlybeusedduringinstallation.
PerformanceConsiderations
Whensettingupyoursystem,itisimportanttoconsiderhowvarioussettingsandsituationswillaffectperformance.Somefactors
affecttheamountofbandwidth(thebitrate)required,otherscanaffecttheframerate,andsomeaffectboth.Iftheloadonthe
CPUreachesitsmaximum,thiswillalsoaffecttheframerate.
Thefollowingfactorsareamongthemostimportanttoconsider:
•Highimageresolutionand/orlowercompressionlevelsresultinimagescontainingmoredata.Bandwidthaffected.
•AccessbylargenumbersofMotionJPEGand/orunicastH.264clients.Bandwidthaffected.
•Simultaneousviewingofdifferentstreams(resolution,compression)bydifferentclients.Effectonframerateand
bandwidth.
•AccessingMotionJPEGandH.264videostreamssimultaneously.Framerateandbandwidthaffected.
•Heavyusageofeventsettingsaffecttheproduct’sCPUload.Framerateaffected.
•UsingHTTPSmayreduceframerate,inparticularifstreamingMotionJPEG.
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