AiRISTA Flow B400 Wi-Fi Location Tag User Manual B4

Ekahau Inc. Wi-Fi Location Tag B4

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B4User Guide

Table of Contents1 Introduction ....................................................................................................................... 11.1 Software Release Level ........................................................................................... 11.2 Features of B4 ......................................................................................................... 11.3 User Interface .......................................................................................................... 21.4 Status Indication LEDs ............................................................................................. 22 Initial Activation of the Tag .............................................................................................. 52.1 Installing Ekahau Tag Activator 3 ............................................................................. 52.2 Supported Wi-Fi Adapters ........................................................................................ 52.3 Activation Procedure ................................................................................................ 52.3.1 Configuring Ekahau RTLS Controller Settings ............................................ 62.3.2 Configuring WLAN Settings ......................................................................... 72.3.3 Configuring Wi-Fi Channels in Use .............................................................. 82.3.4 Configuring IP Settings ................................................................................ 92.3.5 Activation ................................................................................................... 102.3.6 List of Available Settings in the Activator ................................................... 143 Configuration After Initial Activation ............................................................................ 173.1 Tag Configuration Settings in ERC Configs Page .................................................. 173.2 Tag Actions Available in ERC Tags Properties Page ............................................. 194 Tag Operation ................................................................................................................. 214.1 Button Activated Location Update and Maintenance Call ...................................... 214.2 Safety Switch Activated Location Update .............................................................. 214.3 Working with the Display ........................................................................................ 214.3.1 Instant Messages ....................................................................................... 224.3.2 Standard Messages ................................................................................... 224.4 Resetting to Factory Settings ................................................................................. 234.5 Firmware Update ................................................................................................... 234.6 Optimizing Battery Life ........................................................................................... 244.7 Turning off the B4 Tag ............................................................................................ 244.8 Charging the B4 tag ............................................................................................... 255 Technical Specifications ................................................................................................ 275.1 General .................................................................................................................. 275.2 Wi-Fi ....................................................................................................................... 275.3 Operating Ranges from an Access Point ............................................................... 275.4 Care and Maintenance ........................................................................................... 276 Certifications .................................................................................................................. 296.1 FCC Rules ............................................................................................................. 296.1.1 FCC RF Radiation Exposure Statement .................................................... 296.2 Industry Canada ..................................................................................................... 297 Limited Warranty ............................................................................................................ 31B4iii

B4iv

1 IntroductionIntroduction The Ekahau B4 Wi-Fi tag is part of Ekahau RTLS (Ekahau Real-Time Location System)that consists of Ekahau wi-fi tags, 5.x (ERC) software platform and Ekahau Vision (1.7 or 2.0) end-user application. The B4 tags are primarily targeted to be carried by people, but can be attachedto any mobile object or asset as well. The Ekahau RTLS Controller software continuously reportsthe tag's location information such as coordinates and logical areas within the Wi-Fi coverage areaboth indoors and outdoors.1.1 Software Release LevelThis User Guide documents the functionality available with software release level 1.0 onwards.1.2 Features of B4The following features are included with this software release:● Works with standard 802.11b, 802.11g, and 802.11n Wi-Fi networks at 2.4GHz frequencyband.● Support for 64 or 128-bit WEP key and WPA2-PSK authentication.● Static and dynamic IP addressing.● Safety switch for triggering an alarm.● Three configurable buttons for sending and acknowledging alarms, and resetting the tag toits factory settings.● Location reporting triggered by button, periodic timer, motion or safety switch.● Two status indication LEDs for determining the tag status.● A buzzer for audible alarms and notifications.● An OLED (organic LED) display for receiving messages● Configuration using Ekahau Tag Activator 3, standalone tag configuration software.● Configuration using Ekahau RTLS ControllerChapter 1. Introduction1

1.3 User Interface5. Menu Button1. Left LED6. Red Button2. Safety Switch7. Display3. Right LED8. Charging Port4. Blue Button1.4 Status Indication LEDsThe tag is equipped with two multi-color LEDs that provide status indication. The table below liststhe different modes of the tag LEDs:StatusRight LEDLeft LEDActionBoth LEDs blink Red afterbutton press. . Finally LeftLED blinks green or red.Green indicates successfulactivation1xRed1xRed2xGreen2xRedActivation. Press and holdthe Menu button for 3secondsChargingBattery fullOrangeGreen-ChargingSuccessful scan and res-ults sent to ERC-2xGreen blinkPeriodic or motion activ-ated scan2Chapter 1. Introduction

StatusRight LEDLeft LEDActionFailed to scan or sendresults-2xRed blinkPeriodic or motion activ-ated scanSuccess - greenFailed to scan or sendresults - red-1xOrange + 2xGreen blinkor2xRed blinkBlue button pressSuccess - greenFailed to scan or sendresults - red1xOrange + 2xGreen blinkor2xRed blinkRed button pressSuccess - greenFailed to scan or sendresults - red1xOrange + 2xGreen blinkor2xRed blinkMenu button pressAfter completing thesequence erases all config-urations from the tagmemory-1xOrange1xOrange1xOrangeReset. Keep Blue buttondown until Right LEDblinks orange, then imme-diately release the Bluebutton and press Red but-ton button until both LEDsblink2xGreen blinkSuccessfully sent scanresults (Not dependent onscan reason)2XRed blinkUnsuccesfully sent scanresultsChapter 1. Introduction3

4Chapter 1. Introduction

2 Initial Activation of the TagWhen the tag is delivered it does not have any of the necessary configuration settings. Theseenvironment specific settings need to be applied before the tag can connect to the network andthe ERC. The B4 tags are delivered with the battery charged to a storage charge, it is recommendedto fully charge the battery, before activating the tags first time. See charging instructions in chapterCharging the B4 tag on page 25.Tag activation is done using Ekahau Activator software that configures Ekahau tags wirelessly.The activation of the tags is explained in more details in chapter Installing Ekahau Tag Activator3 on page 5.After successful Activation you will see the MAC address of the tag appears on the ERC list oftags. After successful connection with ERC the configurations can be managed directly from ERCusing Tag Configurations page.2.1 Installing Ekahau Tag Activator 3The Ekahau Tag Activator 3 comes with the Ekahau RTLS installer. When you install EkahauRTLS, you do not necessarily need to install the Ekahau Activator if the target computer cannotbe used to activate tags with a supported Wi-Fi adapter. If you want to install the Ekahau Activatorlater on another computer, simply run the RTLS setup file on the target computer and choose toinstall only the Ekahau Activator. The Ekahau Activator is usually installed on a laptop as theEkahau RTLS software is installed on a server.The Ekahau Tag Activator 3 installation package can also be downloaded from http://www.eka-hau.com/download/activator.How to install Ekahau Activator:1. Choose a laptop (or a desktop) computer running Windows 7 (32 or 64bit operating system)with a supported Wi-Fi adapter (and driver supporting virtual Wi-Fi), at least 256 MB of memory,free USB port, and 3.5 MB or more free hard disk space.2. Run the Ekahau Activator setup file from it's location, and follow the on-screen instructions3. Install a supported Wi-Fi adapter from th eprograms menu: Start -> Ekahau -> Ekahau TagActivator 3 -> Ekahau USB Driver.2.2 Supported Wi-Fi AdaptersPlease visit our website for the complete list of supported Wi-Fi adapters: http://www.eka-hau.com/devices.2.3 Activation ProcedureFor the tags to be able to communicate with the Ekahau RTLS Controller, the tag needs to beactivated e.g. the tag needs to be given the necessary parameter to associate with the network.At least the IP address of the Ekahau RTLS Controller, SSID of the network used and the IPconfiguration method are required. To activate B4 tags, you need to use the Ekahau Tag ActivatorChapter 2. Initial Activation of the Tag5

3 which you can run from Ekahau Programs menu. After that, follow the following Activator config-uration procedure.2.3.1 Configuring Ekahau RTLS Controller SettingsInput the IP address of the Ekahau RTLS Controller.Figure 2.1. Specifying the Engine IP address and Maintenance intervalIn case Engine Port, Maintenance port, and/or Maintenance IP needs to be changed, go to"Advanced" mode. The (Periodic) Location Update Interval is set to 60 seconds and the (Periodic)Maintenance Interval is set to 240 seconds by default , but shorter interval can be used if, forinstance, messages are sent frequently to the B4 tag.6Chapter 2. Initial Activation of the Tag

Figure 2.2. Specifying advanced Positioning Engine settingsNoteWhen activating the B4 tags, only an initial setup is required for the tag to associate with thenetwork. All settings can be set and changed from the Ekahau RTLS Controller. Ekahau TagActivator 3 only provides a set of basic settings.2.3.2 Configuring WLAN SettingsInput the Wi-Fi Network SSID and select the Encryption method used. If WEP 64/128 or WPA2-PSK is used type in the network key as well. Normally, 1st Security Key Index (for WEP encrytion)is used. Should you use key index other than the first one, please select the key index matchingthe Security Key.Chapter 2. Initial Activation of the Tag7

Figure 2.3. Specifying Wi-Fi network settingsTipIf WEP encryption is used the Activator automatically determines the key type and length fromwhat you type. WEP 64 require 5 Ascii characters or 10 hex digits, respectively WEP 128requires 13 Ascii characters or 26 hex digits.2.3.3 Configuring Wi-Fi Channels in UseIt is recommended to only select the channels used in you network. Activating the unused channelswill only reduce the battery lifetime of the tag. By default, the Scan Interval is 60 seconds. Youmay also use shorter interval, but it will drain faster the battery of the tag. Alternatively you canuse longer Scan Interval and enable Motion Sensor through the Ekahau RTLS Controller afteractivation. This way the tag will scan only when it is in use and moving.8Chapter 2. Initial Activation of the Tag

Figure 2.4. Specifying the channels used in the networkWarningOnly use channels that really exists in you Wi-Fi network. Activating unnecessary channels willreduce the tag's battery lifetime!2.3.4 Configuring IP SettingsCheck the IP settings. If DHCP is used nothing needs to be done. In case your network uses staticIP addressing, type in the IP address range to be used for the B4 tags, Netmask and Gatewayaddresses.TipChapter 2. Initial Activation of the Tag9

If you only activate a single tag and wish to use static IP setting, enter same IP address in'Start IP Address' and 'End IP Address'.Figure 2.5. Specifying IP settings2.3.5 ActivationPress 'Continue' button when all settings are ready.10Chapter 2. Initial Activation of the Tag

Figure 2.6. When all the settings are done, you can start activating the tagsThe Activation process is now started. The list of the activated tags will appead on the area below.Chapter 2. Initial Activation of the Tag11

Figure 2.7. The Activator is ready to start activating the tagsPress the tag's Menu button to activate it. After successful activation, the tag MAC address appearson the activation window, showing Ok status. Repeat this for all the tags to be activated.12Chapter 2. Initial Activation of the Tag

Figure 2.8. The Activator has activated one tagAfter completing activating the tags, click the 'Stop Activation' button and exit the activation window.TipAfter you have finished the activation, you can save the configuration for future use from thefile menu. If you save the settings with 'Save As Default' the setup will be the default everytime the Activator is started.Chapter 2. Initial Activation of the Tag13

Figure 2.9. Saving the configuration for later use2.3.6 List of Available Settings in the ActivatorThe list of available settings in the Activator:Default valueValuesDescriptionSettingPositioning Engine settings0.0.0.0IP AddressIP Address EkahauRTLS ControllerEngine IP8552Port numberPort number of locationprotocol port of ERCEngine Port (UDP)0.0.0.0IP AddressIP Address of EkahauRTLS Controller, fromwhere TAG gets the set-tings. Typically same asthe ERC IPMaintenance IP14Chapter 2. Initial Activation of the Tag

Default valueValuesDescriptionSetting8553Port numberPort number of mainten-ance protocol port ofERCMaintenance port (UDP)100 - 63072000The interval of the peri-odic maintenance callsin secondsMaintenance intervalScan Settings100 - 63072000The interval of the peri-odic location scans insecondsScanning Interval1 - 11 Enabled; 12 - 14 DisabledEnabled; DisabledSets the channels thatare scannedScan ChannelsWLAN SettingsdefaultSSID=max 32 digitsSets the Wi-Fi networkname -Service set identi-fierSSIDNo EncryptionNo Encryption; WEP64/128; WPA2-PSKSelects if WEP encryp-tion is usedEncryption-ASCII: 5 or 13 charac-tersHEX: 10 or 26 hexa-decimal numbers (0-f)Sets the WEP pass-phraseWEP11 - 4Sets the WEP Key indexusedWEP Key Index-8 - 63 ASCII charactersSets the WPA2-PSKencryption and pass-phraseWPA2-PSKNot supported in B4WPA-PSKIP SettingsDHCPDHCP; StaticDefines the IP addressassigning methodIP methodStatic IP Settings0.0.0.00.0.0.0IP addressSets the start and endaddress of the rangeused to assign the IPaddresses to the tagswhen Static IP is usedAddress range0.0.0.0IP addressTag netmask whenstatic addressing is usedNetwork mask0.0.0.0IP addressIP network gatewaywhen static addressingis usedIP gatewayChapter 2. Initial Activation of the Tag15

16Chapter 2. Initial Activation of the Tag

3 Configuration After Initial ActivationThe tag can be adjusted for each application and network settings by adjusting a set of parameters.The parameters can be changed wirelessly after resetting the tag by using the Ekahau Activatorsoftware or through Tag Configurations in Ekahau RTLS Controller.Ekahau Activator is used for configuring the initial configuration settings that allows connectingthe tag to ERC over the network. After connection is established with ERC, all configurations canbe managed through Ekahau RTLS Controller.3.1 Tag Configuration Settings in ERC Configs PageIn Ekahau RTLS Controller it is possible to create a configuration to a single tag or a group config-uration to multiple tags. After the tags are activated, the configurations are applied to tags fromthe Tags page. It is also possible to apply a configuration automatically to all new tags via theConfigs page. The list of available settings is in the following table:Values (Default underlined)DescriptionSettingNetworkGeneric, Aerohive, Aruba, CiscoCCX, Extricom, Meru, Motorola,Juniper BlinkAllows using a vendor-specificmethod for signal measurement.The Generic method isvendorindependentScan MethodSee Configuring WLAN Set-tings on page 7 for detailsSSID 1 name, Encryption, Pass-phrase and WEP indexSSID 1See Configuring WLAN Set-tings on page 7 for detailsSSID 2 name, Encryption, Pass-phrase and WEP indexSSID 2No association and scan only;associate and scan; DisabledSets whether tag attempts to asso-ciate on B4 SSID 2 networkSSID 2 AssociationEnabled; DisabledSets whether the tag uses broad-cast probe when scanningBroadcast probeTag IP SettingsUse DHCP for each access pointUse DHCP once for all accesspointsPreserve the IP-address that wasgiven by ActivatorSets the IP method usedIP SettingPositioning EngineIP AddressSets the ERC IP AddressIP AddressPort numberPort number of location protocol portof ERCLocation update Port (UDP)Port numberPort number of maintenance pro-tocol port of EPEMaintenance port (UDP)GeneralChapter 3. Configuration After InitialActivation17

Values (Default underlined)DescriptionSetting1 - 10Number of scans the tag does oneach triggered scan despite thetriggering event. Used to improvethe accuracy in difficult conditionsand for rarely scanning applicationsInitial Scan CountNo Delay; 250ms; 500ms; 1000ms;1500ms; 2000msDelay between the scansDelay between initial scans0 - 10The number of scans the tag per-forms for each after motion eventAfter Motion Scan Count0 - 10The number of scans the tag per-forms for each button eventButton Scan CountNoteNetwork wide DHCP enables roaming between subnetworks. With this setting the tag refreshesits IP address whenever the tag associates with a new access point. It is not recommended touse the feature, if not required, due to higher power consumption.NoteUsing the Advanced Scan Settings needs a careful consideration. The scanning consumesa high amount of energy, and the more scanning is done the less battery life the tag has. Typ-ically these parameters are used to improve accuracy in very difficult conditions or in cases thetag otherwise would scan rarely.3.2 Tag Actions Available in ERC Tags Properties PageValuesDescriptionSettingUser DataFree textA user given name for tagNameFree textA custom noteCustomList of groups or "No Groups cre-ated" if no groups exist. Go togroups page to create groupsThe groups the tag belong toMember of GroupsCommandsLED; LED and BuzzerDuration: 10s; 1min; 10min; 30min;1h; 2hLaunches the alarm at the tag withLEDs and buzzer or silently withLEDs only. The alarm duration canbe setLED / BuzzerChapter 3. Configuration After InitialActivation19

ValuesDescriptionSetting-Manual command or a list of com-mands can be sent to a tagManual CommandsA list of available configs. Go toconfigs page to create tag configur-ationsA pre defined config can be selectedand sent to tag(s)Set ConfigFirmware UpdateA list of available firmware updatesuploaded in ERC. The firmwareneeds first to be uploaded into ERC,this is done in configs pageTag firmware can be updated. Thenew firmware needs to be firstuploaded in the configs pageFirmwareCreate New GroupFree textNew group is created and the tag isincluded into this created groupGroup NameManual IP SettingsIP AddressSets the tag IP AddressManual IP addressIP AddressSets the tag netmaskNetmaskIP AddressSets the default gateway for the tagGatewayDelete-The tag is deleted from the system.All statistics are cleared. The tag willappear in the system again when itreport it's location next timeDelete20Chapter 3. Configuration After InitialActivation

4 Tag Operation4.1 Button Activated Location Update and MaintenanceCallIn addition to periodic location updates, the tag can also be set to scan and update it's locationwhen any of the buttons is pressed. After a button press the tag scans and sends the RSSI resultsto ERC immediately. If the Blue button was pressed the TAG will additionally do a maintenancecall to update the settings and to read queued LED/Buzzer alerts and messages. The LEDsindicate the scan success or failure similarly as in the scan activated by the wake up interval. It isalso possible to define button press based events with Ekahau Vision such as alarms. For moreinformation, please refer to Ekahau Vision user guide.Ekahau RTLS Controller recognizes the B4 tag's button presses as different scan reasons:● Red button corresponds "scanreason 1 = Button"● Blue button corresponds "scanreason 6 = Button2"● Menu button corresponds "scanreason 8 = Button3"4.2 Safety Switch Activated Location UpdateIf the safety switch is pulled out from it's original position, the tag will update it's location to theERC with the Safety Switch flag. If the location update is not succesful, the tag will retry until thesuccesful update. The Safety Switch can be used to send alerts to personnel via Ekahau Visionwhen the switch is pulled out. For more information, please refer to Ekahau Vision user guide.Figure 4.1. Safety switch operation4.3 Working with the DisplayThe B4 tag's OLED display can be used to read messages sent from Ekahau Vision and EkahauRTLS Controller. The B4 reads the queued messages during maintenance updates which aremade at regular intervals defined by the maintenance interval or when the Red button is pressed.Thus, if the maintenance interval is 60 seconds, the tag can read the new messages every 60Chapter 4. Tag Operation21

seconds. This needs to be kept in mind if urgent messages need to be sent to the tag. When thetag receives a new message, a small notification sound is played.It is possible to send 160 character long instant messages and standard messages to the B4 tag.In Ekahau Vision the message size is limited to 40 characters as the message includes additionallocation information. The maximum number of messages that can be saved to the tags memorydepends on the length of the messages. For example, the tag can save 9 messages that are 100character long and 15 messages with 50 characters.Figure 4.2. An example message4.3.1 Instant MessagesAs the name implies, an instant message is displayed at the display right away. If the instantmessage was sent by a triggered event, the tag will also display the zone where the event wastriggered. To exit from the instant message, press and hold the Menu button. Note that in contrastto the standard messages, instant messages will not be saved to the tag's memory and will bereplaced by another incoming instant message.4.3.2 Standard MessagesWhen a standard message is received, a "Message pending" is displayed. To read the standardmessage:1. Press and hold the Menu button to access the tag's Messages menu2. By default, the selector is automatically over the latest message, now simply press the Menubutton to read the messageThere is two ways to exit from the Message reading screen:● Press the Menu button to either delete the message or to go back to Messages menu whereyou can read all the messages in the tag● Press and hold the Menu button to exit from the tag's menusYou can read the saved standard messages as follows:1. Press and hold the Menu button to enter the tag's Main menu2. Browse to Messages menu with the Blue or Red button and press the Menu button to enter3. Use Blue or Red button to browse to the message you want to read and press the Menubutton to read itTo delete a standard message, follow the instruction explained above to first access the messagereading screen and then do following:1. Press the Menu button22Chapter 4. Tag Operation

2. Browse to Delete and press the Menu button to delete the message3. After the delete, you will get back to the Messages menu where you can continue reading/delet-ing messages or go back to the Main menuNoteYou can exit from the tag's menus whenever by pressing and holding the Menu button.TipYou can disable the tag's buzzer by entering the Main menu and selecting Enable silentmode.TipFor more information on how to send messages to the B4 tag, please refer to Ekahau Visionand Ekahau RTLS Controller User Guides.4.4 Resetting to Factory SettingsThe tag can be reset to factory setting with the following button sequence .1. Press and hold the Blue button until Right LED flashes orange. If the tag is busy this may takeeven 20 seconds.2. Then immediately release the Blue button button and press down the Red button .3. After approximately 2 seconds both LED’s flash orange. If the tag is busy, it may flash onlythe Right LED.4. The tag has now been reset to factory settings. The tag is in reset mode when it does notexecute button scan as defined in section Button Activated Location Update and MaintenanceCall on page 21 and pressing the Menu button does not turn on the display.NoteResetting the tag to factory settings removes all messages from its memory!4.5 Firmware UpdateThe tag firmware can be updated wirelessly using ERC. The firmware is uploaded to the tags fromthe Tag Properties page or directly from Tags page in ERC. Follow instruction in the ERC UserGuide for updating the firmware.Chapter 4. Tag Operation23

NoteIf the Tag battery level is below 50% - or below 10% when in charging - the FW update is notallowed. The corresponding error code in ERC is TU. To update the firmware, please firstrecharge the battery and try again.4.6 Optimizing Battery LifeThe B4 Wi-Fi tag uses an ultra-low power system-on-chip architecture that lowers the powerconsumption to minimal, but to ensure optimal performance with targeted lifetime, here are someconsiderations.The principal in optimizing battery life is to determine the maximum interval for location updates,still sufficient for the use case, to minimize the amount of time the tag is active.Recommendations for optimizing battery lifetime:● Scan only channels that are in use in your network. Typically, because of overlap of channels,there are only 3 or 4 channels in use from the 11 (or 13/14) available.● Use single SSID whenever possible. Using multiple SSIDs requires additional network scansand decreases battery lifetime.● When using dynamic IP addressing tune the DHCP server to provide very long lease timesfor tags.● The tag supports roaming between subnetworks. This feature renews tag’s IP addresswhenever the access point association changes. Since renewing IP addresses consumeslarge amounts of energy, it is strongly recommended not to use the network wide dynamicaddressing feature if it is not needed.● Tune the wake up settings to match your application needs. More frequent updates lower thebattery lifetime.TipThe battery level can be checked by briefly pressing the Menu button. The textwill disappear automatically in a few seconds.4.7 Turning off the B4 TagThe B4 tag can only be turned off by resetting the tag to factory settings which is explained inchapter Resetting to Factory Settings on page 23. To continue using the tag after resetting, youhave to re-activate it following the instructions explained in chapter Activation Procedure on page 5.Note24Chapter 4. Tag Operation

Turning off the tag's display by exiting from the tag's menus, will not turn off the tag! The tagwill stay operational until it is reset to factory settings.4.8 Charging the B4 tagFigure 4.3. Connecting the tag with a Single ChargerFigure 4.4. B4 tags in Multi ChargerThe B4 tag is delivered with the battery charged to a storage charge, and it is recommended tofully charge the batteries before first time activating the tag. To ensure the tag battery is full, pleaseput the tag in to a charger for 4 hours. To remove the charger plug, release the plug by pressingthe latches on the plug and pull the plug out.The tag will give a notification when the tag battery is low. Connect the charger and the Right LEDwill show orange light during the charging. after the tag is fully charged the Right LED will turngreen. If the tag battery is completely empty, the tag will automatically turn off. After a charger isconnected, the tag will automatically return to it's normal function, maintaining last settings.Chapter 4. Tag Operation25

The Ekahau supported adapters are1. Ekahau C-T301B Charger2. Ekahau C301B-10 Multi ChargerNoteIn case the tag battery is completely empty, typically when left empty and uncharged for severaldays, it may take a long time for the tag even to turn on the orange led. Just connect the chargerand leave the tag to recharge overnight.WarningOnly use Ekahau supported adapters for charging the tags.WarningRecharge the tag only in room temperature conditions, 0 °C - 40°C (32 °F - 104 °F). Rechargingthe tag in too cold or too hot conditions may damage the tag.26Chapter 4. Tag Operation

5 Technical Specifications5.1 General● Outside Dimensions : 2.36 x 3.54 x 0.33 in / 60 x 90 x 8.5 mm.● Weight: 1.6 oz / 46 g● Power: Re-chargeable Lithium Polymer battery● Charging with 5 VDC, 500 mA max.● Three buttons with call button functionality● Two red/green/orange status indication LEDs● Organic LED display● Operating Temperature: 32 to 122 ºF / 0 to 50 ºC, battery lifetime is lower on the low and highend of the temperature range.● Storage Temperature: -40 to 140 ºF / -40 to 60 ºC, battery lifetime is lower on the low andhigh end of the range. Storage in room temperature is recommended.● Humidity: From 20 % to 95 % non-condensing, relative humidity● Environmental Protection: Protected against dust and spraying water5.2 Wi-Fi● Supported IEEE Standards: 802.11b/g● Modulation Scheme: Direct Sequence Spread Spectrum (DSSS)● Media Access: CSMA/CA● Transmit Power: +12 dBm@2Mbps● Receiver Sensitivity: -93 dBm@1Mbps● Frequency Ranges:○ 2.400 - 2.4835 GHz (USA, Canada, Europe)○ 2.400 - 2.497 GHz (Japan)● Supported Networking Protocols: UDP/IP, DHCP or static addressing● Security: WEP Encryption 40/104 Bit, WPA2-PSK● Antenna Type: Internal omni-directional ceramic multilayer● Maximum Antenna Gain: 0 dBi5.3 Operating Ranges from an Access Point● Open Space: 100m (330 ft)● Typical Office: 40m (130 ft)5.4 Care and Maintenance● Keep the tag dry. Precipitation, humidity and all types of liquids or moisture can contain min-erals that will corrode electronic circuits.● Do not use or store the tag in dusty, dirty areas. Its moving parts can be damaged.● Do not store the tag in hot areas. High temperatures can shorten the life of electronic devices,damage batteries, and warp or melt certain plastics.● Do not store the tag in cold areas. When it warms up (to its normal temperature), moisturecan form inside, which may damage electronic circuit boards.● The operating temperature of the tag is 0 to 50 ºC (32 - 122 ºF). Do not operate the tag outsidethis temperature range.Chapter 5. Technical Specifications27

● Do not try to open the tag.● Do not drop, knock or shake the tag. Rough handling can break internal circuit boards.● Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the tag.● Do not paint the tag. Paint can clog the moving parts, affect the radio communication andprevent proper operation.● Use a soft, clean and dry cloth to clean the tag.● Use only the supplied antenna. Unauthorized antennas, modifications or attachments coulddamage the tag and may violate regulations governing radio devices.28Chapter 5. Technical Specifications

6 Certifications6.1 FCC RulesThis device complies with Part 15 of the FCC Rules. Operation is subject to the following twoconditions:(1) this device may not cause harmful interference, and(2) this device must accept any interference received, including interference that may causeundesired operation.FCC ID of this device is: TA7-B400This equipment has been tested and found to comply with the limits for a Class B digital device,pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protectionagainst harmful interference in a residential installation. This equipment generates uses and canradiate radio frequency energy and, if not installed and used in accordance with the instructions,may cause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmful interfer-ence to radio or television reception, which can be determined by turning the equipment off andon, the user is encouraged to try to correct the interference by one or more of the followingmeasures:● Reorient or relocate the receiving antenna.● Increase the separation between the equipment and receiver.● Connect the equipment into an outlet on a circuit different from that to which the receiver isconnected.● Consult the dealer or an experienced radio/TV technician for help.Any changes or modifications not expressly approved by the party responsible for compliancecould void the authority to operate the equipment.6.1.1 FCC RF Radiation Exposure StatementThis equipment complies with FCC Radio Frequency Electromagnetic Signal (RF) exposure limitsset forth for an uncontrolled environment of portable transmission. This product has been evaluatedfor RF exposure at a distance of 0.3 inches (9 mm) from device antenna to body. Operation at aseparation distance less than 0.3 inches (9 mm) from the radiating element to nearby persons willexpose nearby persons to RF levels that exceed the FCC rules for RF exposure.6.2 Industry CanadaThis Class [B] digital apparatus complies with Canadian ICES-003.Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada.IC: 6864A-B400Operation is subject to the following two conditions: (1) this device may not cause interference,and (2) this device must accept any interference, including interference that may cause undesiredoperation of the device.Chapter 6. Certifications29

30Chapter 6. Certifications

7 Limited WarrantyEkahau warrants that the Tags will operate in accordance with and substantially conform to theirpublished specifications when shipped or otherwise delivered to the end user and for a period of1 year thereafter, provided, however, that Ekahau does not warrant any claim or damage underthis Warranty if such claim or damage results from:1. Misuse, neglect, accident or improper installation or maintenance of the Tags,2. Tags that have been altered, modified, repaired or tampered with by anyone other than Ekahau,3. Use of the Tags not in compliance with their respective documentation, user manuals,instructions, and any usage restrictions contained therein, including, but not limited to, theprovisions relating to the environment and ranges where the tags must be used, or4. Accident, fire, power failure, power surge, or other hazard.Otherwise, the Tags are sold AS IS. In no event does Ekahau warrant that the Tags are error freeor that end user will be able to operate the Tags without problems or interruptions.End User is responsible for using the Tags within their specifications as contained in the Docu-mentation.Figure 7.1. The Ekahau B4 Wi-Fi tag is non-recyclableChapter 7. Limited Warranty31

32Chapter 7. Limited Warranty

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