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HD Wireless N Pan/Tilt Network Camera

User Manual

DCS-5222LB1

Summary of Contents for DCS-5222LB1

Page 1: ...HD Wireless N Pan Tilt Network Camera User Manual DCS 5222LB1 ...

Page 2: ...mation Manual Revisions Trademarks D Link and the D Link logo are trademarks or registered trademarks of D Link Corporation or its subsidiaries in the United States or other countries All other company or product names mentioned herein are trademarks or registered trademarks of their respective companies Copyright 2013 by D Link Corporation All rights reserved This publication may not be reproduce...

Page 3: ...ink 19 Configuration 21 Configuration Utility 21 Live Video 22 Setup 24 Setup Wizard 24 Internet Connection Setup Wizard 25 Motion Detection Setup Wizard 29 Network 33 Wireless 36 Dynamic DNS 37 Image Setup 38 Audio and Video 40 PTZ 42 Motion Detection 43 Sound Detection 44 Time and Date 45 SD Management 55 Maintenance 56 Admin 56 System 58 Firmware Upgrade 59 Status 60 Device Info 60 Log 61 Help ...

Page 4: ...iii D Link DCS 5222LB1 User Manual Table of Contents Technical Specifications I O Terminal Applications 75 Technical Specifications 76 ...

Page 5: ...nt voltage rating than the one included with the DCS 5222LB1 will cause damage and void the warranty for this product If any of the above items are missing from your package please contact your retailer DCS 5222LB1 Network Camera Camera Base and Mounting Kit CAT5 Ethernet Cable Product Overview Power Supply1 CD ROM ...

Page 6: ...r Windows 8 32 64bit Windows 7 32 64bit XP 32 64bit Vista 32 64bit Mac OS X 10 5 or above Web based Configuration Utility Requirements Browser Requirements Internet Explorer 8 or higher Firefox 12 or higher Safari 4 or higher Chrome 20 or higher Note Make sure you have the latest version of Java installed Visit www java com to download the latest version mydlink Website Requirements Broadband Inte...

Page 7: ...server that transmits high quality video images for security and surveillance It can be accessed remotely and controlled from any PC Notebook over your local network or across the Internet via a web browser The DCS 5222LB1 features 802 11n wireless connectivity allowing the camera to be placed anywhere within range of your wireless network The DCS 5222LB1 comes with remote monitoring and motion de...

Page 8: ...ytime from anywhere in the world The network camera has a wide range of applications including industrial and public monitoring of homes offices banks hospitals child care centers and amusement parks 802 11n Wireless or Ethernet Fast Ethernet Support The DCS 5222LB1 offers wireless 802 11n and Ethernet Fast Ethernet connectivity making the DCS 5222LB1 easy to integrate into your existing network e...

Page 9: ... s field of view at night 2 Focus Adjustment Ring Enables manual adjustment of the cameras focal length 3 Passive Infrared Sensor Passive Infrared PIR sensor for motion detection 4 Light Sensor Detects light levels and adjusts IR LEDS accordingly 5 Camera Lens Records video of the surrounding area 6 Microphone Records audio from the surrounding area 3 ...

Page 10: ...e camera boots performs a self test and searches for a network connection The LED will switch to solid green when a proper connection has been achieved The LED will blink green during data transfer 2 WPS Status LED Indicates the WPS Wi Fi Protected Setup connection status of the camera Hardware Overview LEDs 2 1 ...

Page 11: ...t devices such as computers switches and hubs 2 Audio Out Connect headphones speakers to provide audio out 3 Reset Button Press the reset button to return the device back to it s factory conditions 4 DI DO Attach digital I O devices such as alarms or motion sensors 5 Power Receptor Connects to the power adapter 1 2 3 4 5 ...

Page 12: ... Use the built in speaker to provide immediate feedback to triggered events 2 Antenna The external antenna increases the device s range of connectivity 3 WPS Button Use WPS Wi Fi Protected Setup to easily create a secure connection to your network 4 microSD Slot Insert a microSD card to store recorded images and video 1 2 3 4 ...

Page 13: ...9 D Link DCS 5222LB1 User Manual Section 1 Product Overview Adjusting Camera Focus To manually adjust the camera focus rotate the focussing ring around the lens clockwise or anti clockwise ...

Page 14: ... Refer to page 11 CameraSetupWizard If you do not have a mydlink enabled router use the Camera InstallationWizard to guide you through setup and initial configuration of your camera Refer to page 14 ManualHardwareInstallation This section shows you how to manually set up your camera though in order to usethemydlinkfeaturesofyourcamera youwillstillneedtoruntheCameraInstallationWizard Refertopage16 ...

Page 15: ... configure your DCS 5222LB1 and automatically add the camera to your mydlink account After the short time it takes to do this you can remotely access your camera from the www mydlink com website to manage and monitor your DCS 5222LB1 Zero Configuration Setup Connect the Ethernet Cable Use the included Ethernet cable and plug it into the camera Plug the other end into an available port on your rout...

Page 16: ...matically configured details Make a note of the details and click Yes to add the camera to your account Check Your mydlink Account Openawebbrowserandlogintoyourmydlinkaccount Themydlinkpagewill check for new devices and display a New device Found pop up notification in the bottom left corner Click the notification to continue ...

Page 17: ... your router wirelessly you can simply disconnect the Ethernet cable and move the camera to its intended location your router s wireless settings have been automatically transferred to the camera and no further configuration is required Your camera is now set up and you can skip to mydlink on page 19 to learn more about the mydlink features of this camera or to Configuration on page 21 for advance...

Page 18: ...click on the autorun exe file Once the wizard has started simply click Set up your Cloud Camera to go through the Setup Wizard which will guide you step by step through the installation process from connecting your hardware to configuring your camera and registering it with your mydlink account Ifyoudonothaveamydlink enabledCloudRouter you can use the Camera SetupWizard to guide you through the pr...

Page 19: ...er s optical drive On the desktop open your CD drive and double click on the SetupWizard file After about 20 30 seconds the Setup Wizard will open which will guide you step by step through the installation process from connecting your hardware to configuring your camera and registering it with your mydlink account ...

Page 20: ...network wirelessly For moreinformation referto WPS PushButtonSetup onpage18 Ifyourrouter does not support WPS you will still be able to set up your camera s wireless settings in the camera s web interface Connect the Ethernet Cable and Power Cable Use the included Ethernet cable and plug it into the camera Plug the other end into an available LAN port on your router Plug the supplied power adapter...

Page 21: ... 45 degree angle appears to be almost 3 feet 1 meter thick At a 2 degree angle it looks over 42 feet 14 meters thick Position your devices so that the signal will travel straight through a wall or ceiling instead of at an angle for better reception 3 Building materials make a difference A solid metal door or aluminum studs may weaken the wireless signal Try to position your access points wireless ...

Page 22: ...outers and access points you may need to log in to the web interface and click on an on screen button to activate the WPS feature If you are not sure where the WPS button is on your router AP please refer to your router or AP s User Manual The DCS 5222LB1 will automatically create a wireless connection to your router or access point While connecting the green LED will flash and your camera will re...

Page 23: ...e to remotely access your camera from the www mydlink com website After signing in to yourmydlink account you will see a screen similar to the following For more details on using your camera with mydlink go to the Support section of the mydlink website and check the User Manual section for your product to find the latest instruction guide for your camera s mydlink features ...

Page 24: ...ll cannot access your camera reset your camera and run the Camera Installation Wizard again from the CD ROM included in your package Here you can see the online status of each of your cameras Your online status may be one of the following A red X indicates that your camera is offline and currently cannot be accessed remotely A green checkmark indicates that your camera is online and ready to use A...

Page 25: ...S 5222LB1 At the end of the wizard enter the IP address of your camera into a web browser such as Internet Explorer To log in use the User name admin and the password you created in the Installation Wizard If you did not create a password the default password is blank After entering your password click OK Note If you are directly connecting your PC to the camera or if you are using the camera on a...

Page 26: ...d The Home buttonwillmove the camera to the preset Home position Press this button and the camera will pan from left most position to the right most position and then return to its original position Click this button to quickly move the camera to the desired patrol setup accordingtopresetpositions Pleasereferto第42頁的 PTZ tocreatepreset positions This will stop pan and patrol Select from the preset ...

Page 27: ... using the Storage folder button Storage folder button Sets the location to save snapshots and video recordings Listen button Sends the audio received from the camera s microphone through to the PC s speakers Click again to turn off Talk button Sends audio from a microphone connected to your PC through to the speakers connected to the camera Start Digital Input Digital Input Indicator This indicat...

Page 28: ...Detection Setup Wizard that includes step by step instructions Please refer to page Motion Detection SetupWizard on page 29 for more details Ifyouwouldrathermanuallysetupthecamera s motion detection features you can refer to page Motion Detection on page 43 which provides more details on the information required Internet Connection Setup Wizard Manual Internet Connection Setup Motion Detection Set...

Page 29: ...Address and enter the following details Enter an IP address for your camera Enter the subnet mask of your network Enter the default gateway address This is usually the IP address of your router Enter the primary DNS server s IP address This is usually the IP address of your router Enter the secondary DNS server s IP address This is optional If you are required to connect using PPPoE select Enabled...

Page 30: ...e and synchronize the public IP address of the modem when it has been modified The username and password are required when using the DDNS service Select your Dynamic DNS Server from the drop down menu Enter the host name of the DDNS server Enter your username or e mail address used to connect to the DDNS Enter your password used to connect to the DDNS server You can setup how often the camera noti...

Page 31: ...cally located in so that scheduled events occur at the correct time If your time zone observes daylight saving check the Enable Daylight Saving box and select Auto Daylight Saving to have DST set automatically or select Set date and time manually to enable the drop down menu so that you can set the start and end time of daylight saving yourself Click Next to continue ...

Page 32: ...2LB1 User Manual Section 4 Configuration A summary of the options you selected is displayed for confirmation If you are happy with the selected configuration click Apply otherwise click Back to make the required changes ...

Page 33: ...LB1 User Manual Section 4 Configuration Motion Detection Setup Wizard This wizard will guide you through a step by step process to con figure the motion detection feature of your new D Link Camera Click Next to continue ...

Page 34: ...used for monitoring in a selected area Enable Video Motion Enable PIR Sensitivity Clear Select this box to enable the motion detection feature of your camera When this option is selected use PIR passive in frared to detect motion Specifies the measurable difference that would indicate motion Enter a value between 0 and 100 Clears all motion detection areas from the picture Click Next to continue ...

Page 35: ...nd hours You may also choose to always record whenever motion is detected Step 3 This step allows you to specify how you will receive event notifi cations from your camera You may choose not to receive notifica tions or to receive notifications via e mail or FTP Please enter the relevant information for your e mail or FTP ac count Click Next to continue ...

Page 36: ...2LB1 User Manual Section 4 Configuration A summary of the options you selected is displayed for confirmation If you are happy with the selected configuration click Apply otherwise click Back to make the required changes ...

Page 37: ...automatically If you choose DHCP you do not need to fill out the IP address settings You may obtain a static or fixed IP address and other network information from your network administrator for your camera A static IP address may simplify access to your camera in the future Enter the fixed IP address in this field Thisnumberisusedtodetermineifthedestination is in the same subnet The default value...

Page 38: ...matically on a UPnP capable network Enable this setting if your network uses PPPoE Enter the username and password for your PPPoE account Re enter your password in the Confirm Password field You may obtain this information from your ISP The default port number is 80 The default name is video mjpg where is the number of the stream YoumayuseaPCwithasecurebrowsertoconnect to the HTTPS port of the cam...

Page 39: ...fic priority policy to ensure a consistent Quality of Service during busy periods If the network camera is connected to a router that itself implements QoS the router s settings will override the QoS settings of the camera Enable the IPV6 setting to use the IPV6 protocol Enabling the option allows you to manually set up the address specify an optional IP address specify an optional router and an o...

Page 40: ... an access point or router Ad Hoc is usually used to connect directly to another computer If you are using Ad Hoc mode select the channel of the wireless network you wish to connect to or selectAuto Select the type of authentication you are using on your wireless network Open Shared WEP WPA PSK or WPA PSK2 IfyouareusingWPA PSKorWPA PSK2authentication you will need to specify whether your wireless ...

Page 41: ...nect to the DDNS server Enter your password again for verification You can setup how often the camera notifies the DDNS server of its current global IP address by entering a whole number in hours Displays the connection status of your DDNS account Enable DDNS Server Address Host Name User Name Password Verify Password Timeout Status This section allows you to configure the DDNS setting for your ca...

Page 42: ...ea Right click on the camera image to bring up the following menu options Disable All Disables all mask areas Enable All Enables all mask areas Reset All Clears all mask areas This will flip the image horizontally This will flip the image vertically Select the frequency used by your power lines to avoid interference or distortion Use the drop down menu to change the white balance settings to help ...

Page 43: ...ount of gain to apply to brighten the picture This setting controls the amount of noise reduction that will be applied to the picture This adjusts the brightness of the camera image This adjusts the contrast of the camera image making a washed out image clearer or reducing the brightness in an over exposed image This adjusts the color saturation Saturation controls the strength of color in the ima...

Page 44: ...me rate Set the aspect ratio of the video to 4 3 standard or 16 9 widescreen Set the video codec to be used to JPEG MPEG 4 or H 264 Frame size determines the total capture resolution andView window area determines the Live Video viewing window size If the Frame size is larger than the Live Video size you can use the ePTZ controls to view the full area 16 9 1280 x 800 1280 x 720 800 x 450 640 x 360...

Page 45: ...nges Video Quality Constant bit rate Fixed quality Encoding Audio in off Audio in gain level Audio out off Audio out volume level This limits the maximum frame rate which can be combined with the Fixed quality option to optimize the bandwidth utilization and video quality If fixed bandwidth utilization is desired regardless of the video quality choose Constant bit rate and select the desired bandw...

Page 46: ...lectavalue between 0 and 10 0 being the slowest Enter a name for your camera location and click Add To add a preset to the sequence select it from the drop down box at the bottom of this window then click the Add button The preset name will appear in the list Youcanrearrangeyourpresetsinthesequenceby selecting a preset in the sequence then clicking the arrow buttons to move it higher or lower in t...

Page 47: ...e Clicking this button will clear all motion detection zones This option allows you to set up Motion Detection on your network camera Enable Video Motion Sensitivity Drawing Mode Clear The motion notification will continue to blink as long as motion is detected If no additional motion is detected it will return to its original state after eight seconds After making any changes click theSave Settin...

Page 48: ...er the more sensitive the camera will be to sound Enabling Sound Detection will allow your camera to use the built in microphone to trigger events with audio If this option is selected the trigger by option under SD recording Video Clip or Snapshot should also be selected Enable Sound Detection Detection Level After making any changes click the Save Settings button to save your changes or click th...

Page 49: ...on from the drop down menu Check this if the camera is in a region where daylight saving is observed This option will adjust Daylight Saving Time automatically Network Time Protocol will synchronize your camera with an Internet time server You can enter an IP address of a server or select from the drop down menu Select this to set the time manually Click to synchronize the time information from yo...

Page 50: ... can be triggered by many sources such as motion detection or external digital input devices When an event is triggered a specified action will be performed You can configure the network camera to send snapshots or videos to your e mail address or FTP site To start plotting an event it is suggested to configure server and media columns first so that the network camera will know what action shall b...

Page 51: ...tions Server Media Event Recording 1 To add a new item event server or media click Add A screen will appear and allow you to update the fields accord ingly 2 To delete the selected item from the pull down menu of event server or media click Delete 3 Click on the item name to pop up a window for modifying ...

Page 52: ...iguration for the target e mail server account Enter the configuration for the target FTP server account Specify a network storage device Only one network storage device is supported Use the camera s onboard SD card storage You can configure up to 5 servers to save snapshots and or video to After making any changes click the Save Settings button to save your changes ...

Page 53: ... option to set the media type to snap shots Set the video profile to use as the media source Refer to Audio and Video on 第 40 頁的 Audio and Video for more information on video profiles Set the number of pre event images to take Pre event images are images taken before the main event snapshot is taken Set the number of post event images to take Post event images are images taken after the main event...

Page 54: ... This sets how many seconds to record before the main event video clip starts You can record up to 3 seconds of pre event video Set the maximum length of video to record for your video clips Set the maximum file size to record for your video clips This is the prefix that will be added to the file name of saved video clips Select this option to set the media type to sys tem logs This will save the ...

Page 55: ... event Set the priority for this event The event with higher priority will be executed first Select the delay time before checking the next event It is being used for both events of mo tion detection and digital input trigger Specify the input type that triggers the event Motion is detected during live video monitor ing Select the windows that need to be moni tored The event is triggered in specif...

Page 56: ...me Trigger D O Triggers an event when an audio trigger is recorded Triggers an event when the PIR sensor is acti vated by moving infrared objects even in dark environment Select Always or enter the time interval Select to trigger the digital output for a specific number of seconds when an event occurs ...

Page 57: ...is to enable the recording function Set the priority for this entry The entry with a higher priority value will be executed first The source of the stream Scheduling the recording entry Configuring the setting for the recording Select the folder where the recording file will be stored Here you can configure and schedule the recording settings After making any changes click the Save Settings button...

Page 58: ...00MB then the camera will record 100 files in the specified location folder and then will delete the oldest file and create new file for cyclical recording Please note that if the free HDD space is not enough the recording will stop Before you set up this option please make sure your HDD has enough space and it is better to not save other files in the same folder as recording files If this is sele...

Page 59: ...ame Size Refresh Files per page Pages Click to automatically format the SD Card and create a folder for video Formatting your SD Card will erase all data currently saved Click the checkbox in front of the Delete button to select files meant for deletion The Delete button is used to delete the files which are selected The name of file recording The file s size Click to refresh the page Select the n...

Page 60: ...ish to use for the new user account and then create a password for that account Click Add to save your account Select a user from the drop down menu and click Delete to remove the user account from having access to the camera images Enter the name of your camera This is useful if you have multiple cameras This will enable the information bar On Screen Display OSD to appear when viewing video This ...

Page 61: ...powered on and initialized or reset Should the camera s pan tilt and zoom functions begin to behave incorrectly or if the device has been jarred orhandledimproperly youmayneedtorecalibrate the camera manually by pressing this button This will turn the camera s front LED indicator on or off Selecton offorscheduletheprivacymodeforyour camera to ensure privacy When the privacy mode is turned on the c...

Page 62: ...button to reset all settings to their factory defaults If you select to reset your settings you will need to set up your camera again Select this option to schedule a time for the device to reboot Clicking the Reboot button will reboot your device Aftermakinganychanges clicktheSavebutton to save your changes Thisscreenallowsyoutosaveandrestorethecamera scurrentconfiguration Youcanalsoresetallsetti...

Page 63: ...not turn off your computer orcamera anddonotdisconnectyournetworkconnectionfromyour computer or camera Upgrading the firmware will not change any of your system settings but it is recommended that you save your system configuration before doing a firmware upgrade Note It is recommended that you use a wired connection for your computer and camera when upgrading the firmware Your current firmware ve...

Page 64: ...60 D Link DCS 5222LB1 User Manual Section 4 Configuration Status This screen displays various information about your camera and its current settings Device Info ...

Page 65: ...2LB1 User Manual Section 4 Configuration The log shows you a list of events that have happened recently You can download the log by clicking the Download button or you can empty the log by clicking the Clear button Log ...

Page 66: ...62 D Link DCS 5222LB1 User Manual Section 4 Configuration Help Online help is available at any time by clicking on the Help tab ...

Page 67: ...ocal IP address to your network camera 2 View the network camera using your Internet Explorer web browser 3 Access the router with your web browser 4 Open virtual server ports to enable remote image viewing Note These are manual steps however if you decide to use the wizard it will perform every step automatically This section is designed to walk you through the setup process for installing your c...

Page 68: ...at allows it to be recognized by the router Write down this IP Address for future reference Open aWeb browser In the address bar type in the IP Address that was assigned to the network camera The DCS 5222LB1 LiveVideo Page appears with a window displaying live video from the camera Click on the Setup button on the left side Scroll down the Network Setup page to find the ports used by HTTP and Stre...

Page 69: ...p Network page displays the port settings for your camera If necessary these ports can be changed if they are already in use by other devices e g in a multiple camera environment Note Both the HTTP port and RTSP port are required to be opened for the DCS 5222LB1 ...

Page 70: ...Address Dynamic means that your router s WAN IP address can change from time to time depending on your ISP A dynamic WAN IP Address identifies your router on the public network and allows it to access the Internet To find out what your router s WAN IP Address is go to the Status page on your router and locate theWAN information for your router as shown on the next page The WAN IP Address will be l...

Page 71: ...s The ports normally used by the DCS 5222LB1 are blocked from access over the Internet Therefore these ports need to be made accessible over the Internet This is accomplished using theVirtual Server function on the DIR 655 router TheVirtual Server ports used by the camera must be opened through the router for remote access to your camera Virtual Server is accessed by clicking on the Advanced tab o...

Page 72: ...rts to conserve bandwidth Check with your ISP so that you can open the appropriate ports accordingly If your ISP does not pass traffic on port 80 you will need to change the port the camera uses from 80 to something else such as 8080 Not all routers are the same so refer to your user manual for specific instructions on how to open ports Enter valid ports in the Virtual Server section of your route...

Page 73: ...ites DCS 5222LB1 http DCS 5222LB1 mydlink com After going through the wizard you should see Remote Status Enabled on the summary page If you see Remote Status Disabled make sure that the front LED on your camera is lit solid green your Internet connection is working your router s LAN WAN connections are working properly your router has UPnP enabled if your router does not support UPnP please refer...

Page 74: ... your system administrator The firewall may need to have some settings changed in order for the network camera to be accessible outside your local LAN For more information please refer to the section about installing your camera behind a router Make sure that the network camera isn t conflicting with any Web server you may have running on your network The default router setting might be a possible...

Page 75: ...you may need to install the appropriate plugin before the streaming video will work If you are using Java you may need to update to the latest version of the Java application Please visit Sun s website in order to obtain the newest version Java for your computer platform http www java com You browser may also have 3rd party applications blocked Please make sure that the browser you are using does ...

Page 76: ... an object with a normal body temperature like humans or animals can be detected To avoid any malfunctions install this camera at the proper height To avoid any malfunctions install this camera in an environment with an average temperature of 25 C Only within a distance of 2 5 meters can smaller movements of an object with the average adult human s height be detected Between a distance of 2 5 and ...

Page 77: ...lick OK Windows 7 Vista users type cmd in the Start Search box At the prompt type ipconfig and press Enter This will display the IP address subnet mask and the default gateway of your adapter If the address is 0 0 0 0 check your adapter installation security settings and the settings on your router Some firewall software programs may block a DHCP request If you are connecting to a wireless network...

Page 78: ...ich represents your D Link network adapter and select Properties Step 3 Highlight Internet Protocol TCP IP and click Properties Step 4 Click Use the following IP address and enter an IP address that is on the same subnet as your network or the LAN IP address on your router Example If the router s LAN IP address is 192 168 0 1 make your IP address 192 168 0 X where X is a number between 2 and 99 Ma...

Page 79: ...GPIO PTC 1 PTC 2 DC3 V 12V PIN FUNCTION NOTE 1 Digital Out DO Uses an open drain NFET transistor with the source connected to GND in camera If used with an external relay a diode must be connected in parallel with the load for protec tion against voltage transients Max loading is 100 mA 2 DC5V OUTPUT DC 5 V Output Max 100 mA 3 Digital In DI A switch from DI to GND activated by setting NO or NC 4 G...

Page 80: ...ideo Compression H 264 MPEG4 MJPEG format simultaneous compression H 264 MPEG4 multicast streaming JPEG for still images Video Resolution 16 9 supports frame rates up to 30 fps 1280 x 720 800 x 450 640 x 360 480 x 270 320 x 176 at 30 fps Others supports frame rates up to 30 fps 1024 x 768 800 x 600 640 x 480 480 x 360 320 x 240 Pan Tilt Zoom Pan Range 170 to 170 Tilt Range 20 to 100 Digital Zoom 1...

Page 81: ...Android devices System Requirements Operating System MicrosoftWindows 8 7 Vista XP SP3 Compatible Browsers Microsoft Internet Explorer 8 Firefox 12 Chrome 20 Safari 4 or above or other Java enabled browser Supported Mobile Devices Mobile devices with a 3GPP player such as PacketVideo Player 3 0 QuickTime 6 5 or Real Player 10 5 mydlink app requires a mobile device running iOS or Android Physical D...

Page 82: ...tallation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circ...

Page 83: ... si le brouillage est susceptible d en compromettre le fonctionnement RF exposure warning This equipment must be installed and operated in accordance with provided instructions and the antenna s used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co located or operating in conjunction with any other antenna or transmitter ...

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