ZKTeco VSR0402 User manual

NVRUserManual
DocumentVersion:2.0
Date:2014.02
Thisdocumentdescribestheinstallation,mainfeatures,andoperationsoftheNVR.

ImportantNotices
ImportantNotices
Thanksforselectingourcompany’sIPC.Beforeuse,pleasereadthroughtheuser’sguidetoavoid
anyunnecessarydamage!
Thisdocumentisapplicabletobuiltinharddiskvideorecorders,suchastheHVRxxxxandVSRxxxx
seriesvideorecorders.
Allfunctionsdependontheactualproduct.Sincetheproductissubjecttoupdating,ourcompanyis
notresponsibleforanydifferencefromthisguideandnotliableforanydisputeoverdifferenttechnical
parametersfromthisguide.Theprojectissubjecttoanychangewithoutnotice.
Tolearnmore,pleasevisitourcompany’swebsitewww.zkivision.comorlocaloffice.

NVRUserManual
I
Contents
1 DeviceDescription............................................................................................................................................ 1
1.1 NVROverview........................................................................................................................................... 1
1.2 FunctionsandFeatures........................................................................................................................... 1
1.3 HardwareEnvironment ............................................................................................................................ 3
1.4 SoftwareEnvironment.............................................................................................................................. 3
1.5 NetworkProtocols..................................................................................................................................... 4
1.6 Appearance................................................................................................................................................ 4
1.7 Technicalparameters............................................................................................................................... 5
1.8 Panels......................................................................................................................................................... 6
1.8.1 FrontPanel ..................................................................................................................................... 6
1.8.2 RearPanel ...................................................................................................................................... 8
1.9 MouseFunctions..................................................................................................................................... 10
1.10 InputMethods........................................................................................................................................11
2 InstallationandCableConnection.............................................................................................................. 12
2.1 HardwareInstallation.............................................................................................................................. 12
2.2 HardDiskInstallation ............................................................................................................................. 12
2.3 DeviceInstallation................................................................................................................................... 14
2.4 VideoInputandOutputConnections................................................................................................... 14
2.5 AudioInputandOutputConnections(AINandAOUT)..................................................................... 15
2.6 AlarmOutputConnections .................................................................................................................... 15
3 SystemMenus.................................................................................................................................................. 17
3.1 MainMenus ............................................................................................................................................. 17
3.2 ShortcutMenus....................................................................................................................................... 19
3.2.1 RecordControl ............................................................................................................................. 20
3.2.2 PTZControl .................................................................................................................................. 21
3.3 MainMenuOperations........................................................................................................................... 23
3.4 Record...................................................................................................................................................... 24
3.4.1 Schedule ....................................................................................................................................... 25
3.4.2 RecordPlayback.......................................................................................................................... 26
3.4.3 Backup........................................................................................................................................... 28
3.5 Alarm......................................................................................................................................................... 28
3.5.1 MotionDetection .......................................................................................................................... 29
3.5.2 AlarmInput.................................................................................................................................... 30

Contents
II
3.5.3 AccessLinkage ............................................................................................................................ 31
3.5.4 NetworkAlarm.............................................................................................................................. 33
3.5.5 AlarmOutput................................................................................................................................. 33
3.5.6 Abnormity ...................................................................................................................................... 34
3.5.7 DigitalAlarm.................................................................................................................................. 35
3.6 Setting ...................................................................................................................................................... 35
3.6.1 General.......................................................................................................................................... 35
3.6.2 Network ......................................................................................................................................... 36
3.6.3 Display........................................................................................................................................... 39
3.6.4 Account.......................................................................................................................................... 40
3.6.5 PTZ ................................................................................................................................................ 42
3.6.6 Tour ................................................................................................................................................ 42
3.7 Advanced ................................................................................................................................................. 43
3.7.1 HDDManage................................................................................................................................ 43
3.7.2 DigitalChannel ............................................................................................................................. 44
3.7.3 USBUpdate.................................................................................................................................. 46
3.7.4 Configuration ................................................................................................................................ 46
3.7.5 Maintenance ................................................................................................................................. 46
3.7.6 Default ........................................................................................................................................... 47
3.7.7 ShutDown .................................................................................................................................... 47
3.8 Information............................................................................................................................................... 48
3.8.1 HDDInformation .......................................................................................................................... 48
3.8.2 BPS................................................................................................................................................ 48
3.8.3 Log ................................................................................................................................................. 49
3.8.4 Version........................................................................................................................................... 49
4 QuickStart......................................................................................................................................................... 50
4.1 Startup ...................................................................................................................................................... 50
4.2 Login......................................................................................................................................................... 50
4.3 Shutdown ................................................................................................................................................. 50
4.4 PowerRecovery...................................................................................................................................... 50
4.5 BatteryReplacement.............................................................................................................................. 50
5 FAQ...................................................................................................................................................................... 51
6 WebServerClient............................................................................................................................................ 53
6.1 InternetExplorerSetting........................................................................................................................ 53
6.2 Login......................................................................................................................................................... 54

NVRUserManual
III
6.3 WebServerClientScreen..................................................................................................................... 54
6.4 MenuBar.................................................................................................................................................. 55
6.5 PreviewMode.......................................................................................................................................... 55
6.6 VideoConnection.................................................................................................................................... 56
6.7 PTZControl ............................................................................................................................................. 56
6.8 ScreenSettingsandOthers.................................................................................................................. 57
6.9 RecordQuery.......................................................................................................................................... 58
6.10 SystemConfiguration........................................................................................................................... 60
6.10.1 SystemInformation.................................................................................................................... 60
6.10.2 SystemSetting........................................................................................................................... 61
6.10.3 AlarmFunction ........................................................................................................................... 62
6.10.4 AdvanceOption.......................................................................................................................... 63

NVRUserManual
1
1 DeviceDescription
1.1 NVROverview
NVRisshortfornetworkvideorecorder.
The NVR is a surveillance host connected to frontend audio/video acquisition devices and alarm
devicesoverIPnetworkandprovidingthefunctionsofbrowsing,recording,playback,cameracontrol,
andalarming.
ThecorevalueoftheNVRliesin thatitisatypeofvideomiddlewarecompatiblewiththecoding
modesofvariousdigitaldevices.Thisprovidestheadvantagesofdistributedarchitectureandmodular
accessovernetwork.
1.2 FunctionsandFeatures
Basicfunctions
l EmbeddedLinuxoperatingsystem.
l Realtimerecordingforfour720PdigitalvideoinputswiththeNV0402S,orrealtimerecordingfor
eight720PdigitalvideoinputswiththeNV0804S.
l OneVGAvideooutput,withVGA,CVBS,andHDMI(optional)outputssupported.
l Oneaudiooutput.
l Synchronousrecordingandplaybackinonechannel.
l Intercom.
l Builtinwebserverforremotecontrolandmanagement.
l Previewonmobilephones(iPhone,Androidbasedphones,andBlackBerry).
l MultipleDDNSssupported(PeanutHull,3322,anddyndns).
l TBlevellargecapacityharddisks.
l Digitalamplificationinlocalareasbyusingamouse.
l Multileveluserrightsmanagement,ensuringsystemsecurity.
l Embeddedvideobasedaccesscontrollinkage(optional)issupported.
NVR
IPnetwork
Frontendnetworksurveillancedevices

1DeviceDescription
2
Storageandbackupfunction
l TwobuiltinSATAdiskinterfacesontheNV0402SandfourbuiltinSATAdiskinterfacesonthe
NV0804S,supportingTBlevelharddisks.
l BackupbasedonUSBinterfaces(suchascommonUSBflashdrivesandmobileharddisks).
l Downloadfromharddisksovernetworkandbackuponaclient.
l Nonworkingdisksinhibernation,facilitatingheatdissipation,reducingpowerconsumption,and
extendingtheservicelifeofharddisks.
l Overwritecyclicrecordingandnoncyclicrecordingforfilesonharddisks.
l Dedicatedstorageformatfordata,preventingtamperingandensuringdatasecurity.
Networkfunction
l One10M/100MEthernetinterface.
l Parametersetting,realtimevideo/audiosignalbrowsing,andNVRstatuscheckonwebpages
l Controloverrotationofthepantiltzoom(PTZ)andcameraparameters(suchastheapertureand
focallength)ontheweb.
l Alarmhandlingandsystemlogscheck.
l Recordssearchandrealtimeplayback.
l Multilevelusermanagement,enablingflexibleandconvenientsettingsofusersandusergroups
withdifferentrights.
l Powerfulnetworkingfunctionsandmultiplenetworkingmodessupported.
l MultiscreendisplayinremoteaccessoverInternet.
Recordplaybackfunction
l Multiplexing,supportingindependentrealtimerecordingineachchannel,multichannelsearch,
andsinglechannelplaybackatthesametime.
l Multiple record modes (for example, manual mode and action with alarm) and prerecording
function.
l Quicksearchforrecordfilesandclassificationsearchbasedonrecordtypes.
l Multiple playback modes, including the slow motion, fast forward, reverse play, and
framebyframeplaymodes.
l Displayoftheaccurateeventtimeduringtheplaybackofarecord.
l Localamplificationofanyareaonthescreenduringsinglescreenandfullscreenplayback
l Searchforfilesonadigitalvideorecorderovernetworkduringplayback.
Realtimesurveillancefunction
l Highdefinition,fine,andsoftimagesonthesystemscreen.
l Displayofchannelstatus(forexample,recordingandvideoloss)onthechannelscreen.
l Singlescreendisplay,multiscreendisplay,andmultichanneltour.
l Freeadjustmentofthebrightness,contrast,saturation,andtoneofpreviewimages.

NVRUserManual
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l Display of the camera name, time, and date on the screen of each digital channel, and free
adjustmentofthepositionsoftheprecedingitems.
l VGAoutputinterfaces,providingthesurveillancefunctionwithmonitors.
l Realtimedisplayofrecordingcodestreamsandspaceoccupiedperhour.
l Checkoflocalandremotesystemlogssupported.
Voicefunction
l Oneaudiooutput.
l Intercom.
l Synchronousaudioandvideostorageineachchannel.
l Synchronousaudioandrecordplayback.
Alarmfunction
l Onerelayalarmoutput.
l Prerecordingagainst alarms, prestoring recordscollectedbeforean alarm isgenerated,with
configurableprerecordingtime.
l Protectivecircuitsforalarmoutputinterfaces,protectingmaindevicesagainstdamage.
Intelligentoperationfunction
l Operationswithamousesupported.
l Localamplificationofanyareaonthescreenduringplayback.
l Copyandpasteofthesamesettingssupportedonthemenu.
1.3 HardwareEnvironment
l Powersupply:12VDC.
l Cableconnection:Cat5networkcablesandstandardAVcables.
l Temperature:Keep the operating temperaturewithintherangefrom 0ºCto 50ºC.The device
mayfailwhenthetemperatureexceedstheupperorlowerlimit.Donotinstallthedeviceabovea
heatsource.
l Humidity:Keepthehumiditywithintherangefrom10%to90%.Donotexposethedevicetorain
ordampenvironment.Moisturemaydamageinternalcomponentsofthedevice.Donotinstallthe
deviceclosetoawatersource.
l Ventilation:Installthedeviceinaplacewithproperventilationandtakedustproofmeasures.
l Installation mode: Install the device horizontally or in a cabinet. Equip the device with a
protectiveenclosureinoutdoorenvironment.
1.4 SoftwareEnvironment
l Operatingsystem:EmbeddedLinux.
l Firmware: The latest firmware shall conform to that published on the website. Customized
firmwareshallconformtotheconstraints.

1DeviceDescription
4
1.5 NetworkProtocols
l Multiplenetworkprotocols,includingTCP/IP,HTTP,TCP,UDP,ARP,SMTP,FTP,DHCP,DNS,
DDNS,NTP,andUPNP.
l StandardONVIFprotocol.
1.6 Appearance
l VSR0402/VSR0804
VSR0402
Frontview Sideview Rearview
VSR0804

NVRUserManual
5
Frontview Sideview Rearview
l HVR0402/HVR0804
HVR0402/HVR0804
1.7 Technicalparameters
Model VSR0402 HVR0402 VSR0804 HVR0804
Mainprocessor Embeddedmicrocontroller
Operatingsystem EmbeddedLinuxoperatingsystem
Simplex/duplex/triplex Pentaplex(recording,playback,backup,network,andpreview)
Operationmethod Mouse
Front view
Top view
Dorsal view

1DeviceDescription
6
Model VSR0402 HVR0402 VSR0804 HVR0804
Operatinglanguage 14languages,suchasChineseSimplified,English,andSpain
Display/preview Display/previewresolutionofscreen1(1280x720(720P))andscreen4
(704x576(D1))
Recordresolution Fourchannelrecording:1280x720(720P)
Playbackresolution Singlechannelplayback:1280x720(720P)
Video/audiocoding H.264(video)andG.711(audio)
Recordmode Manual,alarm,motiondetection,andscheduled
Recordsearchmode Timebasedsearch,calendarbasedsearch,eventbasedsearch,and
channelbasedsearch
Recordstoragemode Localharddisksandnetwork
Backupmode NetworkandUSB
Highdefinitionaccess Fourchannel,720P Eightchannel,720P
Videooutput OneBNCoutputandoneVGAoutput(1280x1024)
HDMIoutput Optional
Audioinput/output Noinputand
oneoutput
2inputand2
output
Noinputand
oneoutput
2inputand2
output
Networkinterface RJ4510M/100MadaptiveEthernetinterface
485interface None √ None √
USBinterface TwoUSB2.0interfaces
Harddisk TwoSATAinterfaces
Two2TBlargecapacityharddisks
FourSATAinterfaces
Four2TBlargecapacityharddisks
Powersupply 12VDC±10%(externalpowersupplies),3A
Powerconsumption <20W(withoutharddisks)
Operatingtemperature 0ºCto50ºC
Operatinghumidity 10%to90%
1.8 Panels
1.8.1 FrontPanel
l VSR0402/VSR0804

NVRUserManual
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FrontpaneloftheNV0402S
Item Description
1 Powerbutton Usedtopoweronandpoweroffthesystem
2 Resetbutton Usedtorestartthedevice
3 USBinterface Usedtoconnectamouse
4 Diskslot
Usedtoholdaharddisk(Ascrewholeisavailableonthetopof
atthebottomoftheslot.Youcanfixtheharddiskbytightening
thescrew.)
l HVR0402/HVR0804
NVRSeriesFrontPanelDiagram (TakeNV0804asanexample)
Name/Mark Instruction
j
k
l
m
n
o
p
Video connection indicators: Continuous blue light indicates
successfulvideoconnectionofcorrespondingchannels.
1
2
3
4

1DeviceDescription
8
q
POWER Powerindicator:Continuousbluelightindicatesthepoweris
ready.
LINK Networkindicator:Continuousbluelightindicatesthenetwork
isconnected.
REC Hard disk video recording indicator: Continuous blue light
indicatestheharddiskisrecording.
1.8.2 RearPanel
l VSR0402/VSR0804
RearpaneloftheNV0402S
Item Description
1 ALARM
(COM,NC,NO)
Alarmoutputinterface
COM:commonterminal,NC:normallyclosed,NO:
normallyopen
2 AOUT Audiooutputinterface
3 AIN Voiceinputinterface
4 VIDEOOUT CBVSvideooutputinterface
5 VGA VGAvideooutputinterface
1 2 3 4 5 6 7 8 9
10

NVRUserManual
9
6 LAN RJ45adaptiveEthernetinterface
7 USBinterface
8 DC12V 12VDCpowerinterface
9 Groundingcopperbar
10 Mainpowerswitch
l HVR0402/HVR0804
Name/Mark Instruction
A1,GND AlarmInputInterface1
A2,GND AlarmInputInterface2
(485A,485B) 485Interface
(COM1,NO1,NC1) AlarmInputInterface1
COM1,NC1NormalClose,NO1NormalOpen
(COM2,NO2,NC2) AlarmInputInterface2
COM2,NC2NormalClose,NO2NormalOpen
ALARM
(COM,NO,NC)
Alarmoutputinterface
COM indicates a common port; NC indicates being normally
closed,andNOindicatesbeingnormallyopen.
AOUT Audiooutputinterface
AINAudioinputinterface
VIDEOOUT CBVSvideooutputinterface

1DeviceDescription
10
VGA VGAvideooutputinterface
LAN RJ45autonegotiationEthernetport
USBinterface
DC12V DC12Vpowerinterface
HDMI HDvideooutputinterface
Mainpowerswitch
1.9 MouseFunctions
*Thisdocumentassumesthatyouoperatethemousewithyourrighthand.
Toperformoperationsonmenusbyusingamouse,connectthemousetotheUSBinterfaceofthe
device.
Descriptionofmousefunctions
Whenyouhavenotloggedintothesystem,apasswordtextboxisdisplayedafter
youclickonthescreen.
Amenuisdisplayedwhenyouclickamenuicon.
Thisactionallowsyoutoperformoperationsinstructedonthecontrols.
Thisactionallowsyoutochangethestatusofacheckboxoramotiondetection
area.
Adropdownlistisdisplayedwhenyouclickacombobox.
Click
In a text box, you can select an input method, for example, numeric input,
character input, uppercase/lowercaseEnglishletter input, or Chinese input. You
cantypeacharacterbyclickingitonthepanel. Indicatesabackspace,and
indicates a space. In an edit box, indicates the input of a space, and
indicates the deletion of the character before the cursor. In a numeric box,
indicateszeroingout,and indicatesthedeletionofthelastdigit.Youcantype
onlydigits(forexample,thestandbytimeincommonsetting)inanumericbox.You
cantypeanycharacters(forexample,achannelname)inaneditbox.
Thisactionallowsyoutoperformspecialoperationsofcontrols.Forexample,you
candoubleclickanoptioninarecordfilelisttoplaybacktherecord.
DoubleclickIn multiscreen mode, when you doubleclick a specific screen, the screen is
displayedinfullscreenmode.Whenyoudoubleclickthescreenagain,itreturnsto
themultiscreenmode.

NVRUserManual
11
Whenyourightclickthescreenduringrealtimesurveillance,ashortcutmenuis
displayed,providing themultiscreenmode,imagecolor,recordsearch,manual
recording, alarm input, alarm output, andmain menu options. The multiscreen
mode is relevant with the number of channels on the device. For example, a
fourchanneldevicedisplaysonlyasinglescreenorfourscreens.Theimagecolor
appliestothechannelthatthecursorindicates.Inmultiscreenmode,thesystem
automaticallyswitchestothesingle screenofthecorrespondingchannel before
thesettingofthecolorimage.
Rightclick
Thisactionallowsyoutoexitthecurrentmenuwithoutsavingthesettings.
Thisactionallowsyoutoincreaseordecreasethenumberinanumericbox.
Thisactionallowsyoutoswitchbetweenoptionsinacombobox.
Scroll
Thisactionallowsyoutopageupandpagedowninalistbox.
MoveYoucanselectacontroloracomponentofacontrolinthecurrentcoordinatesand
moveitbyusingthemouse.
DragThisactionallows youtoselectmotiondetectionareas,areasettings,andarea
coverage.
JNote:IfamousecannotbedetectedafteryouconnectittotheNVR,themouseisincompatible
withtheNVR.Replacethemouse.
1.10 InputMethods
In a text box, you can select an input method, for example, digit input, character input,
uppercase/lowercaseEnglishletterinput,orChineseinput.Youcantypeacharacterbyclickingiton
thepanel.
Icon Description Icon Description
LowercaseEnglishletterinputstatus Numericinputstatus
UppercaseEnglishletterinputstatus Spacekey
Deletionkey:todeletethecharacter
beforethecursor Specialcharacterinputstatus

2InstallationandCableConnection
12
2 InstallationandCableConnection
Notethefollowingduringtheinstallation:
1. Takeoutallmaterialsrequiredfortheinstallation.
2. Connect cables (video signal input cables, audio signal input cables, and network cables) as
required.
3. Connecttherearpanel,frontpanel,andpowersupplyinsequence.
4. Takeouttheregulatedpoweradapterorpowercableandconnectthepowersupply.
2.1 HardwareInstallation
CheckAfterUnpacking
l After youreceivetheproduct,checktheappearancetosee whetheritis damagedduringthe
transportation.
l Openthepackingboxandchecktheaccessoriesaccordingtothepackinglist.
l Removetheprotectivefilmfromtheproduct.
FrontPanelandRearPanel
l Read the descriptions of buttons on the front panel and interfaces on the rear panel in the
instruction.
l Checkthemodelontheprotectivefilmofthefrontpanelagainsttheordercontract.
l Keepthelabelontherearpanelintact.Itisrequiredforaftersalesservices.Donotteardownor
discard the label. Otherwise, no warranty service will be provided. When you call aftersales
personnelofthecompany,providetheserialnumberoftheproduct.
InternalCheck
Checkfordamageandscratches.Checkwhetherdatacables,powercables,andfanpowersupplies
areconnectedtothemainboardonthefrontpanelproperly.
Precautions(Contactusifyouhaveanydoubt)
1. Afterunpacking,ensurethatthematerialsareconsistentwiththepackinglist.
2. Checkthevoltage,avoidingdevicedamagecausedbyimpropervoltage.
3. Check the installation environment. Do not use the device in damp or hightemperature
environment. Ensure proper ventilation and keep the air vents unblocked. Lay the device
horizontally.Donotinstallthedeviceinenvironmentwithsharpvibration.
2.2 HardDiskInstallation
Checkwhetherharddisksareinstalledwhenyouinstallthedeviceforthefirsttime.TheNVRsupports
TBlevelharddisks.Userecommendedmodelsofharddisks(7200rpmorabovehighspeedhard
disks)andSATAdiskcablesdeliveredwiththedevice.
l VSR0402/VSR0804
ToinstallaharddiskontheVSR0402,performthefollowingoperations:

NVRUserManual
13
1. Pressthebuttonatthebottomofadiskslottoejectthediskslot.
2. Pullthediskslotoutoftheshelf,installaharddiskinthediskslot,andfixtheharddiskusingtwo
screws.
3. Insertthediskslotintheshelf.Ifasoundisgenerated,thediskslotisinsertedproperly.
l HVR0402/HVR0804

2InstallationandCableConnection
14
1. Unscrewthescrews,andremovethecover.
2. Unscrewtheharddiskslotscrews,andtakeouttheharddiskslotfromthechassis.
3. Putaharddiskintheharddiskslotandfixtheharddiskintotheharddiskslotwithscrews.
4. Installtheharddiskslotintothechassis,andfixitwithscrews.
5. Installthecover,andfixitwithscrews.
2.3 DeviceInstallation
Procedureandprecautions:
1. Laythedeviceonaflatandstablerack.
2. Ensurethatthetemperatureintheroomisbelow35ºC(95ºF).
3. Leavea15cm(6in.)spacearoundthedeviceforaircirculation.
4. Installassembliesontherackfrombottomtotop.
5. Whenmultipleassembliesareinstalledontherack,takepropermeasurestoavoidoverloadofthe
powersocketontherack.
2.4 VideoInputandOutputConnections
Videoinputconnections(LAN)
l ConnectnetworkcamerastotheNVR.Ifonlyonenetworkcameraisavailable,connectittothe
NVRdirectlythroughanetworkcable.Ifmultiplenetworkcamerasareavailable,connectthemto
theNVRthroughaswitch.
Videooutputconnections(VGA,VIDEOOUT,HDMI)
l TheNVRsupportsVGAandCVBSvideooutputs.Youcanusebothoutputmodesoruseoneof
them.
l Dedicated monitors, computer displays, televisions, video matrixes, and highdefinition
largescreendisplayscanbeusedasexternaldisplaydevices.
l Toensurethequalityofimages,usededicatedmonitors.
Notethefollowingwhenyouusecomputerdisplaysortelevisionsasmonitors:
- Ensurepropergrounding.Lowqualitycomputerdisplaysortelevisionshaveelectricleakage
hazards,whichmaydamageotherdevices.

NVRUserManual
15
- Performdegaussingregularlytoensureproperoperatingofthemonitors.
- Keepthemonitorsawayfromdevicesthatgeneratestrongelectromagneticinterference.
- Poweroffthedeviceafteroperatingforaperiodtoextendtheservicelifeofthedevice.
2.5 AudioInputandOutputConnections(AINandAOUT)
Generally,theaudiooutputsignalparameteroftheNVRislargerthan200mV1K.TheNVRcanbe
connectedtoexternallowimpedanceheadsetsandactivesoundboxesdirectlyorconnectedtoother
soundoutputdevicesthroughpoweramplificationdrives.
WhentheNVRisnotisolatedfromexternalsoundboxesoraudiomonitoringunits,outputsquealing
mayoccur.Inthiscase,takethefollowingmeasures:
l Adjustthevolumeofthesoundboxtobesmallerthanthethresholdatwhichoutputsquealing
occurs.
l Adjustthelayoutoftheaudiomonitoringunitsandsoundboxes.
l Usesoundabsorbingmaterialsduringdecorationtoreducethereflectionofsoundandimprove
theacousticenvironment.
l Useaudiomonitoringunitswithsuperbdirectionality.
2.6 AlarmOutputConnections
1.Alarmoutputinterface(onealarmoutput)
l Asshowninthefigure,COM1isthecommongroundterminal,NC1isthenormallyclosedoutput
terminal,andNO1isthenormallyopenoutputterminal.
l PowersuppliesmustbeconnectedtoexternalalarmdevicesfortheBooleanalarmoutput(NO
contact).
l Groundingalarmsaregeneratedwhenthealarmcircuitisdirectlyconnectedtotheground.
l Toprotectthehostagainstoverload,readtherelayparametersonthealarmoutputsideinthe
followingtablebeforecableconnection.
Model:HFD3
Contactmaterial AgNi
Ratedswitchingcapacity 30VDC2A,125VAC0.5ARatedvalues
(Resistanceload) Maximumswitchingpower 60W/62.5VA