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Страница 3: ...ensures the product is used properly as intended The Network Camera is a network device and its use should be straightforward for those who have basic network knowledge The Troubleshooting chapter in the Appendix provides remedies to the most common errors in set up and configuration You should consult this chapter first if you run into a system error The Network Camera is designed for various app...

Страница 4: ... 3 Package Contents Network Camera Power adapter A V Cable Remote Controller Camera stand Software CD ...

Страница 5: ... 14 The pan tilt zoom control buttons 14 The CCD control buttons 15 Client Settings 16 Administrator s Capabilities 18 Fine tuning for Best Performance 18 For Best Real time Video Images 18 Only Quality Images Will Do 19 Somewhere Between Real time and Clear Images 19 Select for Motion JPEG 20 Opening Accounts for New Users 21 Protect Network Camera by Passwords 21 More Flexible Options for Viewer...

Страница 6: ...ng 35 DDNS UPnP 36 Mail FTP 38 SMTP 38 FTP 38 Video Codec Parameters 41 Image Settings 42 CCD Settings 43 Audio 46 Motion Detection 48 Camera Control 50 Camera control area 50 Preset function area 50 Application Setup 53 Weekly Schedule 53 Event Operation 53 Sequential Operation 54 Viewing System Log 56 Viewing System Parameters 56 Factory Default 56 Remote Controller 57 Appendix 58 A Troubleshoot...

Страница 7: ...lues 64 Available Parameters on the Server 65 Drive the Digital Output 74 Query Status of the Digital Input 75 Capture Single Snapshot 76 Account Management 76 System Logs 78 Configuration File 78 Upload File firmware 79 Camera Control 79 Recall 81 System Information 81 Preset Locations 82 D Technical Specifications 84 ...

Страница 8: ...ut off and the Network Camera will be on stand by and ready for software installation If self test fails the red LED will blink several times Refer to Appendix A for troubleshooting The Network Camera will first detect Ethernet If it does not connect to Ethernet the Network Camera will try WLAN During the searching and connecting process to the wireless access point or station the red LED of the N...

Страница 9: ...era will switch to wireless LAN mode Consult with the dealer of the peripherals for correct installation 1 DI INPUT Max 50mA 12VDC 2 DI INPUT Initial state of DI is low 3 SW_COMMON OUTPUT open from SW_OPEN at initial state close with SW_OPEN when set DO to ON 4 SW_NOPEN OUTPUT Max 1A 24VDC or 0 5A 125VAC ...

Страница 10: ...ra At the end of the hardware installation the Administrator must place the product software CD into the CD ROM drive of the PC running in MS Windows An auto run program will pop up If the program is not on auto run go to the root directory of the software CD and click on autorun exe Click on Software Utility item after the window contains changed click on Installation Wizard to run installation p...

Страница 11: ...After searching Video Servers or Network Cameras will be located by the Installation Wizard There may be several entries shown in the window The Administrator may differentiate the Network Cameras with the serial number For the series number in the Serial Number field please check the label on the bottom of the camera ...

Страница 12: ...is range is free the Network Camera will be assigned to this IP address and its subnet mask would be 255 255 255 0 If none of the addresses is free the Network Camera will try the range from 192 168 0 2 to 192 168 0 98 After an IP address is assigned to the camera the Activity status LED blinks The new UPnP function will always assign an IP address for the Network Camera The Administrator can clic...

Страница 13: ... 9 For more detailed usage of the Installation Wizard please refer to the user s manual of the Installation Wizard ...

Страница 14: ...n the Internet security settings of the user s PC or notebook If the highest security level is set the computer may prohibit any installation and execution attempt This plug in has been registered for certificate and is used to display the video in the browser Users may click on to proceed If the web browser does not allow the user to continue to install check the Internet security option and lowe...

Страница 15: ...f the Appendix Add Password to Prevent Unauthorized Access The default Administrator s password is blank and the Network Camera initially will not ask for any password The Administrator should immediately implement a new password as a matter of prudent security practice Once the Administrator s password is saved the Network Camera will ask for the user s name and password before each access The Ad...

Страница 16: ...ng in the URL of the Network Camera a dialogue window pops up to request a username and password The foreground is the login window and the background shows the message if authentication fails The user may check the option box to save the password for future convenience ...

Страница 17: ...ration functions The camera can be configured using these user interfaces Camera View What the camera sees Pan Tilt Zoom control buttons These buttons provide a command interface to control the aim of the camera CCD control buttons These buttons provide a command interface to control the aim of the camera ...

Страница 18: ...ode and audio transmission mode You can push toggle the talk button to talk to the remote server The volume of speaker and microphone can also be adjusted The camera view provides not only the live video but also a way to aim the Network Camera to different target Using mouse to click on the target inside the video will command the Network Camera to aim at the target and with the mouse wheel up or...

Страница 19: ...s button commands the camera to patrol between the preset positions on the Patrol List which can be modified on the Camera control page After one patrol cycle the camera returns to the original position Stop This stops the Auto Pan command or Auto Patrol command The CCD control buttons The set of the buttons is for controlling focus iris and zooming Click to zoom telescopically and see more clearl...

Страница 20: ... be opened If there is no restriction UDP protocol is recommended Generally speaking the client s choice will be in the order of UDP HTTP After the Network Camera is connected successfully Protocol Options will indicate the selected protocol The selected protocol will be recorded in the user s PC and will be used for the next connection If the network environment is changed or the user wants to le...

Страница 21: ... 17 client periodic update the JPEG image from server according to the Frame rate settings Talk Button Control Style For the User to determine whether to click once and talk or push to talk ...

Страница 22: ...o quality and at the lowest network bandwidth as possible The six factors Size Maximum frame rate Video codec type Key frame interval Fix bit rate and Fix quality on the Video Configuration page are correlative to allow for achieving the best performance possible For Best Real time Video Images To achieve good real time visual effect the network bandwidth should be large enough to allow a transmis...

Страница 23: ...itially been finely tuned Performance will also suffer due to poor connectivity because of the network s burst constraint In multi user environment the user who has poor network performance will receive only the key frame in MPEG4 format Try to reduce the key frame interval can improve the frame rate for poor network performance but the penalty is the increasing of network traffic If the server is...

Страница 24: ...lected the camera will transmit video data in JPEG format Therefore it requires higher bandwidth to view smooth video General speaking each normal sized JPEG image would be 3k 12k bytes depending on the selected video quality and contents Together with the frame rate selected the administrator can control the bandwidth of each connection ...

Страница 25: ...t with user name and password for your friends in the second field The Network Camera can provide twenty accounts for your valuable customers or friends Each account identifies the access right rather than the real visitor That allows multiple visitors share the same account of different level Each account has four kinds of privileges which can be set individually The I O access privilege permits ...

Страница 26: ...roduct Demo for E business Large scale Service If the number of visitors has exceeded the limit the Network Camera can allow the overload viewers to see the snapshots in JPEG mode on the homepage These are still images and will be refreshed periodically and automatically 1 Click on Client Settings on the homepage 2 Select Single JPEG in Streaming Options 3 Set the snapshot interval to refresh the ...

Страница 27: ... Click on Configuration on the homepage 2 Click on Mail FTP in the left column 3 Fill in the FTP related settings including server server port user name and password as well as the upload path if it is specified by the web space ...

Страница 28: ...ce to the image file uploaded via FTP in advance If the web space has no FTP service An auto refresh homepage can be used to periodically poll the newest image from the Network Camera It is most efficient if using a free web space provider as the FTP service may be limiting 1 Prepare an auto refresh homepage as the following example The URL of image is http IP address of the Network Camera cgi bin...

Страница 29: ... refreshrate if necessary script language javascript var image http 192 168 0 203 cgi bin video jpg IMAGE URL var refreshrate 5 SECONDS BETWEEN REFRESH var imgwidth 352 IMAGE WIDTH var imgheight 240 IMAGE HEIGHT function refresh document images pic src image new Date setTimeout refresh refreshrate 1000 document write img src image height imgheight width imgwidth name pic if document images window ...

Страница 30: ...ither email or FTP according to user s needs Both e mail and FTP use the network settings on the Mail FTP page Refer to the definition section for detail configuration 1 Click on Configuration on the homepage 2 Click on Application in the left column 3 Check the weekdays as you need and give the period of Snapshots begin time and Snapshots end time to monitor the triggering conditions every day 4 ...

Страница 31: ...g the window corner to resize or the title bar to move 11 Fine tune using the Sensitivity and Percentage fields to best suit the camera s environment Higher Sensitivity detects the slighter motion Higher Percentage discriminates smaller objects 12 Clicking on Save enables the activity display Green means the motion in the window is under the watermark set by the Administrator and red means it is o...

Страница 32: ... 28 17 Click on Save to validate ...

Страница 33: ...or may type the URL below the figure to directly enter the frame page of configuration If the Administrator also wants to set certain options through the URL read the reference appendix for details url http Network Camera setup config html Network Camera is the domain name or original IP address of the Network Camera url http Network Camera setup system vspx Network Camera is the domain name or or...

Страница 34: ...PC is displayed as updated Manual Adjust the date and time according to what is entered by the Administrator Notice the format in the related fields while doing the entry Automatic Synchronize with the NTP server over the Internet whenever the Network Camera starts up It will fail if the assigned time server cannot be reached NTP server Assign the IP address or domain name of the time server Leavi...

Страница 35: ...e new user will be displayed in the user name list There is a maximum of twenty user accounts Each user can have four privileges I O access Camera Control Talk and Listen I O access Allows user to control the DO and get status of the DI Camera control Allows user to aim the Network Camera to different targets Talk Allows user to talk to the server Listen Allows user to listen from the server Delet...

Страница 36: ... 32 url http Network Camera setup security vspx Network Camera is the domain name or original IP address of the Network Camera ...

Страница 37: ...dit User Type the new password change the privilege and press to modify the account url http Network Camera setup edituser vspx Network Camera is the domain name or original IP address of the Network Camera ...

Страница 38: ...f the IP address is forgotten or using the UPnP function provided by the Network Camera MS Windows XP provides UPnP function at My Network Place As for how to get IP address automatically please refer to the section of Software Installation General IP address This is necessary for network identification Subnet mask It is used to determine if the destination is in the same subnet The default value ...

Страница 39: ...168 0 100 Streaming UDP Audio channel port This can be something other than the default port 5002 in order to work with the port opened by the firewall UDP Video channel port This can be something other than the default port 5003 in order to work with the port opened by the firewall url http Network Camera setup network vspx Network Camera is the domain name or original IP address of the Network C...

Страница 40: ...ield must be input as Password Password Key Please input the password or key to get the DDNS service Enable UPnP This turns on or off the UPnP function When UPnP is turned off the camera cannot be found through network neighbors in MS Windows XP If the UPnP network component is installed in Windows XP the hostname of the Network Camera will be shown with bracketed IP address in the Network neighbo...

Страница 41: ... 37 url http Network Camera setup ddnsupnp vspx Network Camera is the domain name or original IP address of the Network Camera ...

Страница 42: ...d in the event the mails fail to send out FTP Built in FTP server port This can be other than the default Port 21 The User can change this value from 1 to 65535 After the change the external FTP client program must change the server port of connection accordingly 1st FTP server The domain name or IP address of the external FTP server The following user settings must be correctly configured for rem...

Страница 43: ...a can automatically attempt for active mode if the external FTP server does not support passive mode 2nd FTP server The domain name or IP address of the backup FTP server 2nd FTP server port The port to access the backup FTP server 2nd FTP user name Granted user name on the backup FTP server 2nd FTP password Granted password on the backup FTP server 2nd FTP remote folder Granted folder on the back...

Страница 44: ... 40 url http Network Camera setup mailftp vspx Network Camera is the domain name or original IP address of the Network Camera ...

Страница 45: ...mize the bandwidth utilization and video quality If the User wants to fix the bandwidth utilization regardless of the video quality choose Fix bit rate and select the desired bandwidth MPEG4 video are composed by I frames and P frames as the following sequence IPPPPPIPPPPPIPPPP Key frame interval determines how many repeated P frames will appear after one I frame Large Key frame interval can reduc...

Страница 46: ...mera setup video vspx Network Camera is the domain name or original IP address of the Network Camera Image Settings Click on Image Settings to pop up another window for tuning Brightness Contrast Hue and Saturation for video compensation ...

Страница 47: ...k on Restore to recall the original settings without incorporating the changes CCD Settings Click on CCD Settings button the CCD settings window will pop up The default setting of the CCD is of auto IRIS mode Therefore the Auto electronic shutter AES option will be fixed at 1 60 1 50 second Once the shutter is selected as Auto the IRIS of the CCD will become fixed ...

Страница 48: ...is aiming at dark environment Enable BLC option is for back light compensation Normally objects in front of light source are difficult to be seen checking this option and adjusting BLC sens level can help seeing the objects more clearly The BLC sens level is about sensitivity of BLC detection Clicking on BLC Area Selection a selecting window will pop up As the window shows the video is divided to ...

Страница 49: ... all the areas in the windows and Clear All will do vice versa Save button can set the selected areas for BLC In the CCD settings window click on Preview to see the effect of changing the options Click on Save to set the CCD settings Click on Restore to recall the original settings without incorporating the changes ...

Страница 50: ...tion to talk to the server and broadcast your voice to all the other clients Improve audio quality in low bandwidth environment If the Network Camera works in versatile or low network bandwidth environment the User can check this option to improving audio quality by sacrificing some real time synchronization Audio source Select source from external or built in microphone Acoustic echo cancellation...

Страница 51: ... 47 url http Network Camera setup audio vspx Network Camera is the domain name or original IP address of the Network Camera ...

Страница 52: ...raphic bar will rise or fall depending on the image variations A green bar means the image variation is under monitoring level and a red bar means the image variation is over monitoring level When the bar goes red the detected window will also be outlined in red Going back to the homepage the monitored window is hidden but the red frame shows when motion is detected Window Name The text will show ...

Страница 53: ... 49 url http Network Camera setup motion vspx Network Camera is the domain name or original IP address of the Network Camera ...

Страница 54: ... of the vertical movement of the camera The greater value the greater angular movement when performing the Up or Down functions Zoom speed This controls the range of the zooming The greater the value the greater viewing angle changed Auto pan patrol speed This defines the speed of panning and patrol the greater the value the faster the speed Preset function area Current position If the User wants ...

Страница 55: ... 84 mm Patrol selection After the User has saved a list of preset positions the Preset locations box will also keep a list of the preset positions And once the Select button is clicked the Selected location box will keep a list of the patrol stops The Remove button removes the preset position from the patrol stops The UP DOWN buttons adjust the order of the patrol stops Several preset positions ca...

Страница 56: ... 52 url http Network Camera setup camctrl vspx Network Camera is the domain name or original IP address of the Network Camera Camera control area Preset function area ...

Страница 57: ...ion is triggered Send pre event image s when event occurs Specify how many pre event snapshot will be sent if events happen Trigger condition There are four conditions relative to the digital input and three windows for motion detection More than one condition can be selected at once Select the appropriate digital input condition that suits the characteristics of the external device high low selec...

Страница 58: ...lowing the intervals set above The snapshot named video jpg will be attached in the email with the subject title Periodic snapshots Send snapshots by FTP The snapshots will be uploaded to the external FTP server with the file name defined in the next option This can also be used to refresh the captured images stored in the external web server to build creative homepages FTP put snapshots with date...

Страница 59: ... 55 url http Network Camera setup app vspx Network Camera is the domain name or original IP address of the Network Camera ...

Страница 60: ...configuration page to restore factory default settings Any changes made so far will be lost and the system will be reset to the initial factory settings After clicking on the Restore button and make confirmation the system will restart and require the installer program to set up the network again Calibrate Recalibrate the home position to the default center to recover the tolerance caused by some ...

Страница 61: ...the patrol list that was set on the Camera control page After each patrol cycle the camera stops at the original staring position Auto Pan This button commands the camera to pan from the current position to the left most or right most and back After panning both horizontal end positions the camera would stop at the original starting position Center This calibrates the camera s position to aim at t...

Страница 62: ...Blink green every second Any hardware failure Other patterns Reset and Restore At the left side of the camera there is a button hidden in the pinhole as shown in the picture It is used to reset the system or restore the factory default settings Sometimes resetting the system sets the system back to normal state If the system problems remain after reset restore the factory settings and install agai...

Страница 63: ... Internet Explorer to allow installation of plug ins 3 If the problem still exists after adjusting and the message over the image window is showing connecting the network traffic may be too crowded 4 It there is only A shown below the image check the media options in client settings containing video Q What is the plug in for A The plug in provided by the Network Camera is used to display motion pi...

Страница 64: ... this period the User should be aware of the risk of malicious network activity Q I have opened motion detection windows but it cannot work A If the motion detection windows are set up and names are given check to see if the function is checked on the first line While it is enabled adjust the sensitivity and percentage to monitor the level indicator for best results Q I cannot hear any sound while...

Страница 65: ...eep the Network Camera as private as possible A The Network Camera is designed for surveillance purposes and has many flexible interfaces The user authentication and special confirmation in installation can keep the Network Camera from unauthorized access You may also change the HTTP port to a non public number The demo account is good to separate guests from normal users and thus you can easily b...

Страница 66: ...angle brackets denotes a content that is to be replaced with either a value or a string When replacing the text string also the angle brackets shall be replaced An example of this is the description of the name for the server denoted with servername in the URL syntax description below that is replaced with the string myserver in the URL syntax example also below URL syntax are written with the Syn...

Страница 67: ... When the CGI request includes internal camera parameters the internal parameters must be written exactly as they are named in the camera or video server The CGIs are organized in function related directories under the cgi bin directory The file extension of the CGI is required Syntax http servername cgi bin subdir subdir cgi ext parameter value parameter value Example Setting digital output 1 to ...

Страница 68: ...e text html r n Context Length length r n r n parameter pair where parameter pair is parameter value r n parameter pair length is the actual length of content Example request IP address and it s response Request http 192 168 0 123 cgi bin admin getparam cgi network_ipaddress Response HTTP 1 0 200 OK r n Content Type text html r n Context Length 33 r n r n network ipaddress 192 168 0 123 r n Set Se...

Страница 69: ... be a full URL path or relative path according the the current path If you omit this parameter it will redirect to an empty page note The return page can be a general HTML file htm html or a server script executable vspx file It can not be a CGI command It can not have any extra parameters This parameter must be put at end of parameter list Example Set the IP address of server to 192 168 0 123 htt...

Страница 70: ...r mac address 12 characters mac address without hyphen connected firmwareversion r text string shorter than 39 characters The version of firmware including model company and version number restore w 0 Restore the system parameters to default value The value will be valid after restart the server restart w restart 0 65535 Restart the server after value seconds H NC connected with COMMON do 1 4 w st...

Страница 71: ...r listen Permit to listen from server camctrl Permit to do camera control conf Permit to change server s configuration usercount r 1 11 The current account number on the server including root Group Network NAME VALUE DESCRIPTION 1 enable to get ipaddress subnet router dns1 dns2 from DHCP server at next reboot resetip r w restart 0 Using preset ipaddress subnet router dns1 dns2 ipaddress r w restar...

Страница 72: ...aracters mailpass2 r w user password for mailuser2 mail recipient address max 15 characters returnemail r w text string for return email address return email address max 80 characters localftpport r w number less than 65535 FTP port ftp1 r w domain name or IP address primary FTP server ftpport1 r w number less than 65535 primary FTP port ftpuser1 r w user account on 1st FTP server user name for pr...

Страница 73: ...erver ftppassmode2 r w 0 Disable passive mode of primary FTP server httpport r w restart number less than 65535 HTTP port videoport r w number less than 65535 video Channel port for UDP audioport r w number less than 65535 audio Channel port for UDP Group Video NAME VALUE DESCRIPTION text r w text string shorter than 15 characters enclosed caption 0 MPEG4 codectype r w restart 1 MJPEG 1 half 2 hal...

Страница 74: ...te to 2 fps 3 set maximum frame rate to 3 fps 5 set maximum frame rate to 5 fps 10 set maximum frame rate to 10 fps 15 set maximum frame rate to 15 fps 20 set maximum frame rate to 20 fps 25 set maximum frame rate to 25 fps maxframe r w 30 set maximum frame rate to 30 fps 1 flip image flip r w 0 normal image 1 mirror image mirror r w 0 normal image Group Audio NAME VALUE DESCRIPTION 8000 set bitra...

Страница 75: ...ess of image according to mode settings saturation r w 5 5 Adjust saturation of image according to mode settings contrast r w 5 5 Adjust contrast of image according to mode settings hue r w 5 5 Adjust hue of image according to mode settings Preview Apply the parameter of image but not save Restore Restore the last saved image parameters mode w Save Directly save the adjust image parameters Group M...

Страница 76: ... to take effect Group DDNS NAME VALUE DESCRIPTION enable r w 0 1 Enable or disable the dynamic dns provider r w 1 4 dyndns org dynamic dyndns org custom tzo com dhs org hostname r w Text string shorter than 63 characters Your dynamic hostname usernameemail r w Text string shorter than 63 characters Your user or email to login ddns service provider passwordkey r w Text string shorter than 63 charac...

Страница 77: ...ation presetpan_ 0 9 r w 127 127 The pan coordinate of preset location presettilt_ 0 9 r w 127 127 The tilt coordinate of preset location patrolname_ 0 19 r w Text string shorter than 30 characters The name of patrol location Group CCD NAME VALUE DESCRIPTION autoiris r w 0 or 1 set 1 to enable auto iris set 0 to disable auto iris irislevel r w 0 8 Set iris size set bigger value to set bigger iris ...

Страница 78: ...5 to indicate enabling all sub windows blcarea 1 r w 0 255 Second row in BLC area blcarea 2 r w 0 255 Third row in BLC area blcarea 3 r w 0 255 Fourth row in BLC area blcarea 4 r w 0 255 Fifth row in BLC area blcarea 5 r w 0 255 Sixth row in BLC area Drive the Digital Output Note This request requires the privilege of I O access control Method GET POST Syntax http servername cgi bin setdo cgi do1 ...

Страница 79: ... you omit this parameter it will redirect to an empty page Example Drive the digital output 1 to high and redirect to an empty page http myserver cgi bin setdo cgi do1 H Query Status of the Digital Input Note This request requires the privilege of I O access control Method GET POST Syntax http servername cgi bin getdi cgi di1 di2 di3 di4 If no parameter is specified all the status of digital input...

Страница 80: ...t Note This request require normal user privilege Method GET POST Syntax http servername cgi bin video jpg Server will return the most up to date snapshot in JPEG format The size and quality of image will be set according to the JPEG settings on the server Return HTTP 1 0 200 OK r n Content Type image jpeg r n Content Length image size r n binary JPEG image data Account Management Note This reques...

Страница 81: ...name field is necessary and other fields are optional If not specified it will keep original settings username name The name of user to add delete or edit userpass value The password of new user to add or that of old user to modify The default value is an empty string value The privilege of user to add or to modify The privilege can be the addition of the following values Ex A user with DI DO acce...

Страница 82: ...ilege Method GET POST Syntax http servername cgi bin admin syslog cgi Server will return the up to date system log Return HTTP 1 0 200 OK r n Content Type text plain r n Content Length syslog length r n r n system log information r n Configuration File Note This request requires administrator privilege Method GET POST Syntax http servername cgi bin admin configfile cgi Server will return the up to...

Страница 83: ...ile file name return return page r n r n multipart encoded form data Server will accept the upload file named file name to be stored on the flash as flash bin and return with return page if indicated Camera Control Note This request requires camera control access privilege Method GET POST Syntax http servername cgi bin camctrl cgi move value focus value iris value speedpan value speedtilt value sp...

Страница 84: ...o zoom for larger view with current speed zoom tele To zoom for farer view with current speed auto To do auto focus far To focus on farer distance focus stop To focus on nearer distance auto Let the Network Camera control iris size open Manually control the iris for bigger size iris stop Manually control the iris for smaller size return return page Redirect to the page return page after the parame...

Страница 85: ...ecall return return page Redirect to the page return page after the parameter is assigned The return page can be a full URL path or relative path according to the current path If you omit this parameter it will redirect to an empty page System Information Note This request requires normal user privilege Method GET POST Syntax http servername cgi bin sysinfo cgi Server will return the system inform...

Страница 86: ...nal camera 0 external 1 build in Bit 2 Support pan operation 0 not support 1 support Bit 3 Support tilt operation 0 not support 1 support Bit 4 Support zoom operation 0 not support 1 support Bit 5 Support focus operation 0 not support 1 support Preset Locations Note This request requires administrator access privilege Method GET POST Syntax http servername cgi bin admin preset cgi addpos value del...

Страница 87: ...n page Redirect to the page return page after the parameter is assigned The return page can be a full URL path or relative path according to the current path If you omit this parameter it will redirect to an empty page ...

Страница 88: ... Electronic shutter 1 60 1 50 to 1 120 000 sec Lens Focal length 4 2 42mm Aperture F1 8 2 9 10X optical zoom 10X digital zoom Audio 32Kbps 24Kbps 8Kbps Acoustic echo cancellation Full duplex audio communication Microphone Omni directional Frequency 20 20 000Hz S N ratio more than 58dB General I O 1 sensor input max 12VDC 50mA 1 relay output max 24VDC 1A 125VAC 0 5A LED indicator Dual color system ...

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