Technical data

4Commissioning
26 CamTel
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4.2 General configuration information
■ Configure your system with all cameras connected and all final camera
perspectivesset,forbestresults.Thisenablesprecisecalculationofimages
sizesdetectedinCamTel
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configurationmode.
■ Ifpossible,use conditionalrefreshmode(differentialimagecompression).
Thismethodismoreefficient thantheoptionsingleimagecompression.
CamTel
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onlyrecordsconditionalrefreshimagesiftheintervalbetween
twoconsecutiveimagesisnotgreaterthan10seconds.Forlargerintervals,
significantimagechangesareassumedandthereforefullimagerecording
isactivated.Theadvantagesofconditionalrefreshmodeare:
■ Online evaluation is faster. This is of advantage when using
narrow bandwidth communication paths such as GSM,
MODEMorISDN.
■ Camera noise, e.g. caused by poor lighting, can cause excessively large
images, even in conditional refresh mode - factory setting - as camera
noiseisinterpretedasimagechange.
■ Imagequalitycanbesetseparatelyforeachcamerainput,andforimage
transmission. Additional options for resolution  and multi image display
mode are available for image transmission. Full format live transmission
allowsadjustingresolutionbytheviewerduringtransmission.
■ If you want to control several cameras by integrated motion detection,
considerusingexternalmotiondetectors.Theintegratedmotiondetection
is not designed for outdoor using and should therefore be reserved for
indoorcameras.Thishelpsavoidfalsealarms.
■ Integratedmotiondetectionallowsyoutosetdifferentlevelsofsensitivity
forcontrollingrecordingandalarmforwardingtoaCamControlstation.
■ Forthedevicetopositivelydetectcontrolinputstatesandstatuschanges,
circuittimemustbeatleast0.5seconds.
■ CamTel
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 is equipped with an integrated clock  module with calendar
feature.Maximum deviation atanambient operating temperature of40
°C is +/-2.5 minutes per month. It is recommended to synchronise the
clock with PC time at regular intervals and to activate automatic
adjustmenttosummer/wintertime.
■ During live transmission CamTel
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 displays date and time in the upper
right corner ofthe picture. To distinguishdifferent images stored atthe
sametimefromeachother,aconsecutiveimagenumberisdisplayedafter
dateandtimedata,separatedbyaperiodoraspace.
■ Video output operation has no impact on performance or on other
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features.Usethisoutputtoswitchtheconnectedcamerawith
the V out pushbutton or the V out control output as part of a
sequence,duringalarm,ormanually.
■ On principle, always assign a  Device name and assign unique Camera
names.Thisfacilitatesdistinction,especiallyinlargeprojects,notonlyfor
livetransmissionbutalsoforonlineandofflineevaluation.Inaddition,you
candefinecameragroupsandpoolseveralcamerasintologicalgroups.
■ DependingonequipmentyourCamTel
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supportsconnectionstoseveral
CamControl LITE stations. Simultaneous support is for up to 6 IP
connections, or 5 IP and 1 dialup connection, or 4 IP and 2  dialup
connections.ThenumberofactiveCamControl LITE stationsconnected