WiFi Advisor Wireless LAN Analyzer User’s Guide
WiFi Advisor Wireless LAN Analyzer User’s Guide Network and Service Enablement 20250 Century Blvd Germantown, Maryland 20874 USA Toll Free 1-855-ASK-JDSU Tel +1-301-353-1560 • Fax +1-240-404-1996 www.jdsu.
Notice Every effort was made to ensure that the information in this manual was accurate at the time of printing. However, information is subject to change without notice, and JDS Uniphase reserves the right to provide an addendum to this manual with information not available at the time that this manual was created. Copyright © Copyright 2014 JDS Uniphase Corporation. All rights reserved. JDSU, and the JDSU logo are trademarks of JDS Uniphase Corporation (“JDS Uniphase”).
Terms and conditions Specifications, terms, and conditions are subject to change without notice. The provision of hardware, services, and/or software are subject to JDSU’s standard terms and conditions, available at www.jdsu.com/terms. FCC Notice This product was tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
Industry Canada Requirements This Class A digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada. This device complies with Industry Canada license-exempt RSS standard(s). Operation 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 undesired operation of the device.
utilisation dans la main. Des mesures SAR sont basés sur un espacement 0 mm à partir du corps et qui est obtenue conformément à cette distance. Gardez l'appareil loin de votre corps pour répondre à l'exigence de la distance. (iii) Cet appareil est conforme avec Industrie Canada exempts de licence standard RSS (s).
returned are reused, recycled, or disposed of in an environmentally friendly manner, and in compliance with all applicable national and international waste legislation. It is the responsibility of the equipment owner to return equipment and batteries to JDSU for appropriate disposal. If the equipment or battery was imported by a reseller whose name or logo is marked on the equipment or battery, then the owner should return the equipment or battery directly to the reseller.
Contents About This Guide xi Purpose and scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii Assumptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii Safety and compliance information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents Chapter 3 Testing 17 WiFi Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 BSSID results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Channel view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Spectral results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Navigating the Spectral result screen . . . . . . . . . . . . .
Contents Spectrum Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 2.4 GHz Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 5 GHz Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Appendix C Customer Services and Support About our services . . . . . . . . . . . . . . . . . . . . . . . . Standard support services . . . . . . . . . . . . . . . . . . .
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About This Guide This prefix explains how to use this manual. Topics discussed include the following: • “Purpose and scope” on page xii • “Assumptions” on page xii • “Safety and compliance information” on page xii • “Conventions” on page xii December 2014 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
About This Guide Purpose and scope Purpose and scope The purpose of this guide is to help you successfully use the WiFi Advisor features and capabilities. This guide includes task-based instructions that describe how to install, configure, use, and troubleshoot the WiFi Advisor. Additionally, this guide provides a complete description of JDSU’s warranty, services, and repair information, including terms and conditions of the licensing agreement.
About This Guide Conventions Table 1 Text formatting and other typographical conventions (Continued) Item(s) Example(s) Buttons, links, menus, menu options, tabs, or fields on a PC-based or Web-based user interface that you click, select, or type information into. Click Start. – Click File > Properties. – Click the Properties tab. – Type the name of the probe in the Probe Name field.
About This Guide Conventions Table 3 Safety definitions DANGER Indicates a potentially hazardous situation that, if not avoided, will result in death or serious injury. It may be associated with either a general hazard, high voltage, or risk of explosion symbol. WARNING Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury. It may be associated with either a general hazard, high voltage, or risk of explosion symbol.
1 Chapter 1 WiFi Advisor Overview This chapter provides a general description of the WiFi Advisor. Topics discussed in this chapter include the following: • “About the Wireless LAN Analyzer” on page 2 • “Architecture” on page 2 • “About the WiFi Advisor” on page 3 • “About the WiFi Advisor app” on page 8 December 2014 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
Chapter 1 WiFi Advisor Overview About the Wireless LAN Analyzer About the Wireless LAN Analyzer The Wireless LAN Analyzer provides a complete, multi-dimensional map of real WiFi performance, highlighting margin and resiliency of WiFi connections at multiple locations within a site (versus a simple signal strength icon). It includes intuitive tools to quickly optimize and troubleshoot the in-home WiFi network.
Chapter 1 WiFi Advisor Overview About the WiFi Advisor About the WiFi Advisor The WiFi Advisor, shown in Figure 1, is a portable WiFi analysis solution that efficiently optimizes and troubleshoots 802.11 WiFi networks, provides a whole-home view of real WiFi performance / margin, and generates valuable information that can be given to the end user. Figure 1 The WiFi Advisor Features and capabilities • • Flexible – Battery powered WFED, configurable as Station or AP – Configurable radio from 802.
Chapter 1 WiFi Advisor Overview About the WiFi Advisor Quick tour This section describes the buttons, indicators, and connectors for the WiFi Advisor WFED-300AC. Top view The top view is shown in Figure 2. Figure 2 WiFi Advisor top view Power LED Power Button Status LED Bluetooth Button Bluetooth LED Power The power button is the green button on the top of the instrument. Press and hold the button to power up or power down the instrument.
Chapter 1 WiFi Advisor Overview About the WiFi Advisor Bluetooth The Bluetooth button is the blue button on the top of the instrument. Press and hold the button for five seconds to make the WiFi Advisor ready to pair. The LED located below the button indicates the Bluetooth status.
Chapter 1 WiFi Advisor Overview About the WiFi Advisor Front view The front view is shown in Figure 3. Figure 3 WiFi Advisor front view USB 2.0 device USB 2.0 host 10/100/1000 Ethernet USB There are two USB connectors. They are used to connect host devices to the WiFi Advisor and as an alternative path for firmware download. • The standard USB connector is a master/host interface. • The mini-USB is a device/slave interface.
Chapter 1 WiFi Advisor Overview About the WiFi Advisor Back view The back view is shown in Figure 4. Figure 4 WiFi Advisor back view Battery charge LED DC Power input DC Power input The DC Power input, located on the back of the instrument, is used to connect the AC adapter. Battery charge LED The LED located next to the power input indicates that the adapter is connected. Red indicates the battery is charging; green indicates fully charged.
Chapter 1 WiFi Advisor Overview About the WiFi Advisor app About the WiFi Advisor app The WiFi Advisor iPad host app communicates with the WiFi Advisor instrument to run tests and manage devices. The application allows the user to set up WiFi tests, communicates test setups to the WFED-300AC WiFi Advisor test device(s) over Bluetooth, manages test execution, displays test results, and enables administration of job or work ticket related information. The icon for the WiFi Advisor is shown in Figure 5.
Chapter 1 WiFi Advisor Overview About the WiFi Advisor app The application provides the following functions: • WiFi Advisor Home – The main application that includes three selections: – Two-Ended Site Assessment (Evaluate WiFi performance at critical locations within a site installation) see “Assessing WiFi performance throughout a site” in Chapter 3 “Testing”. – Single-Ended Troubleshooting (examine the surrounding 802.
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2 Chapter 2 Managing Devices This chapter describes the Device Management menu which is used to register devices, view device status, and manage firmware updates.
Chapter 2 Managing Devices Connecting a WiFi Advisor for the first time Connecting a WiFi Advisor for the first time Before any testing can begin, each WiFi Advisor must be paired with the iPad. Pairing devices 1 On the iPad, select the Settings icon. 2 Verify that Bluetooth is set to On. In the Devices section, the iPad detects and lists any devices within range. 3 Press and hold the blue button on the top of the WiFi Advisor for 5 seconds.
Chapter 2 Managing Devices Changing the power off delay To unregister WiFi Advisor devices with the iPad 1 From the WiFi Advisor app, select Device Management. 2 Select the WiFi Advisor with the label (or serial number) of your device and swipe to the left. A red Delete button appears. 3 Do one of the following: – If you do not wish to unregister the device, swipe to the right. – Tap the Delete button to unregister your device.
Chapter 2 Managing Devices Updating the firmware Updating the firmware The firmware on the WiFi Advisor can be upgraded over Bluetooth using the iPad. The WiFi Advisor must be paired with the iPad and registered with the app. To update firmware on a registered WiFi Advisor 1 In the WiFi Advisor app, select Device Management. The menu reports all registered WiFi Advisor devices and the current firmware for each.
Chapter 2 Managing Devices Updating the iPad application software Updating the iPad application software Updating the iPad host application software allows you to have the latest application, including new WiFi Advisor features and company-specific procedures or applications. To update the host application software 1 To download the app, do one of the following: a If your company has an enterprise network, connect to your company enterprise network with the iPad.
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3 Chapter 3 Testing This chapter provides task-based instructions for using the WiFi Advisor features. Topics discussed in this chapter are as follows: • “WiFi Troubleshooting” on page 18 • “Assessing WiFi performance throughout a site” on page 25 • “Managing jobs” on page 35 • “Troubleshooting Problems with Your WiFi Advisor” on page 41 December 2014 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
Chapter 3 Testing WiFi Troubleshooting WiFi Troubleshooting The single-ended troubleshooting test includes the following: • Quick, visually intuitive assessment of critical WiFi network factors reduces troubleshooting time • Spectral insight within the same tool allows identification and isolation of common, non-802.
Chapter 3 Testing WiFi Troubleshooting Figure 7 BSSID results This provides a visual representation of overlap in the channels to help identify problem spots. The BSSID graph area shows each visible BSSID by channel and signal strength. This view is useful for understanding an existing Access Point’s channel configuration and signal strength or for determining which channel to select for a new AP to be placed within the environment. To toggle between 2.
Chapter 3 Testing WiFi Troubleshooting shown in Figure 8. Figure 8 Trend Graphs Channel view The Channel view, shown in Figure 9, shows utilization and noise per 802.11 channel in addition to co-channel or adjacent channel interferers. You can view the best channels per band, best channels per channel width, or overall channel score. This allows you to select the best channels available in the current environment. Page 20 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
Chapter 3 Testing WiFi Troubleshooting Figure 9 Channel results The Utilization graph in the top pane shows the channel utilization for all channels in the selected band. Touching a bar within the graph highlights the bar for that channel (the blue bar will turn green) and the “BSSID List” changes to the Channel Summary which includes values associated with that particular channel. The Noise graph in the bottom pane displays the noise per channel.
Chapter 3 Testing WiFi Troubleshooting particular channel which includes the channel score, the channel utilization, noise, the BSSIDs resident in the channel, and the BSSIDs that are overlapping (adjacent to) that channel. Touching Best Channels in the top right area of the Utilization graph displays a table that identifies the current top 3 best channels based on channel width for the band being viewed. Touching anywhere on the screen closes the table.
Chapter 3 Testing WiFi Troubleshooting The Spectral results screen has 3 main areas: • The spectral graph area, where the real-time spectral data is displayed • The controls area, where the user can configure the spectrum analyzer ranges and modes • The BSSID List / Channel information pane Navigating the Spectral result screen As in the BSSID and Channel views, the BSSID List view in the right pane provides a listing of all detected BSSIDs along with their channel setting, current signal strength, a
Chapter 3 Testing WiFi Troubleshooting 5 6 7 8 Clear – located under Max Hold, it resets the Max Hold trace and restarts the measurement. Average – allows averaging of the real-time trace when on Number of Samples – select the number of samples to be used for averaging of the real-time trace World view – shows all channels. Changing the channel bandwidth changes how channels are represented in the world view.
Chapter 3 Testing Assessing WiFi performance throughout a site Channels can “bleed over” into adjacent channels. The width of the signal (due to RF considerations) can affect nearby channels, as shown in Figure 11. Figure 11 Spectral view of channel overlap Assessing WiFi performance throughout a site The general procedure for a Site Assessment test is: 1 Place one WiFi Advisor in close proximity to where the Wireless Access Point (or Residential Gateway) will be installed.
Chapter 3 Testing Assessing WiFi performance throughout a site • Innovative TrueMargin™ performance test which thoroughly and simultaneously evaluates the physical layer, the 802.11 transport layer and the packet layer. • BSSID / AP view snapshot for each test location • Spectral snapshots at both ends of the wireless link • Best Channel recommendations for 2.
Chapter 3 Testing Assessing WiFi performance throughout a site To select devices 1 From the Site Assessment page, select Devices. All registered devices are shown. If not shown, you may need to pair with the device and then register it. See “Connecting a WiFi Advisor for the first time” on page 12 and “Registering and unregistering devices” on page 12. 2 Choose an AP (access point) Location. 3 Select a Station Location.
Chapter 3 Testing Assessing WiFi performance throughout a site Step 3: Specifying the configuration The configuration page specifies the profile(s). To specify a configuration 1 From the Site Assessment page, select Configuration. 2 Do one of the following: – Select the pre-defined configuration that matches your needs or matches the equipment you are installing into the test site. Proceed to “Step 4: Specifying the AP and Station Location” on page 30.
Chapter 3 Testing Assessing WiFi performance throughout a site 4 If you wish to change the profile, do the following: a In the Test Profile box, just above the network graphic, enter a name for the profile. b Touch the instrument graphic on the left to specify the device that is operating as the access point. i Do one of the following: - Select from the pre-defined devices that is operating as the access point. - If no pre-defined configuration matches your needs, touch Add AP Device.
Chapter 3 Testing Assessing WiFi performance throughout a site 7 If you wish to specify an additional secondary profile, touch Add Profile located under Secondary Profiles. 8 Touch the back arrow to return to the Select Configuration page. The new configuration is saved and can be selected for future tests. To delete a configuration To delete a configuration, touch and hold the configuration until it is highlighted, and then swipe to the left. A Delete button appears. Tap the Delete button.
Chapter 3 Testing Assessing WiFi performance throughout a site 3 Select Two-Ended Site Assessment. The Settings page appears. 4 If needed, specify the settings as described in “Specifying settings”. 5 Select Next... to initiate the Site Assessment test. 6 After the first location is tested, a green check mark or red “X” (a Go/No Go result) appears next to the access point and station. 7 If you have another station, select Next Station Location. If not, go to step 8.
Chapter 3 Testing Assessing WiFi performance throughout a site Interpreting Site Assessment results While the Site Assessment test is in progress, results for any completed profile test can be viewed by touching the completed profile in the Test Progress pane. When a profile name is selected, the Site Assessment Results screen appears. This screen displays results for both the AP-to-Station direction and Station-to-AP direction.
Chapter 3 Testing Assessing WiFi performance throughout a site An example of the Summary Results is shown in Figure 12. Figure 12 Example of Site Assessment Summary Results To return to the Site Assessment test, touch Site Assessment in the upper left. December 2014 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
Chapter 3 Testing Assessing WiFi performance throughout a site Tips If the rates you receive are not what you expected, review Figure 13. It provides maximum rates available based on protocol. Figure 13 Max possible rates per protocol Channel BW (MHz) Antenna Configuration Max Possible PHY Rate (Mbps) 802.11a 20 1x1 54 802.11b/g 20 1x1 54 802.11n 20 1x1 72 802.11n 40 1x1 150 802.11n 20 2x2 144 802.11n 40 2x2 300 802.11ac 20 1x1 96 802.11ac 40 1x1 200 802.
Chapter 3 Testing Managing jobs Table 4 Recommended WiFi distance (Continued) Household Appliance Recommended Minimum Distance (in feet and meters) Baby monitor - Digital 40 feet / 12 meters Cordless phone - Analog 20 feet / 6 meters Cordless phone - Digital 30 feet / 9 meters Bluetooth devices 20 feet / 6 meters Viewing Location Results At the beginning of each location test, a BSSID graph is captured at both the Station and the AP, for both 2.4GHz and 5GHz bands.
Chapter 3 Testing Managing jobs Creating a new job in Job Manager Within the Job Manager application, you can create a new job. To create a new job 1 From the main Job Manager screen, touch New. 2 In the Add Job screen, enter the job-related information such as Circuit ID, Work Ticket, and Tech ID. Touch Use Current Location if your iPad is equipped with GPS (Geo Tag) and you wish to capture the current GPS coordinates with your job data. 3 Touch Accept to create the new job.
Chapter 3 Testing Managing jobs Activating or deactivating jobs There can be only one Active job at any point in time. Any stored job can be activated or deactivated. If a job already has results associated with it, activating the job and saving new results to it will replace the old results with the new. To activate or deactivate a job 1 From the main Job Manager screen, touch Manage. Active jobs are listed.
Chapter 3 Testing Managing jobs The results can be viewed in several ways. – XML – shows results gathered in the Site Assessment Test in XML format. – Details – shows results gathered in the Site Assessment Test in text format. – Detailed Report – shows all results gathered in the Site Assessment Test, including the graphs, in PDF. – Customer Report – shows the end-user facing PDF report. This report can be emailed by selecting Send PDF in the top right of the screen.
Chapter 3 Testing Managing jobs Figure 15 Customer Report example Exporting jobs Jobs can be exported from the iPad to an external database using either FTP or HTTPS (if available). To export a job 1 From the main Job Manager screen, touch Manage. Active jobs are listed. 2 Choose the desired job by selecting the box next to the job. 3 Touch Export.
Chapter 3 Testing Managing jobs 5 The Edit FTP Settings menu appears. If your version of software has both FTP and HTTPS export capability, touching the HTTPS button will exchange the Edit FTP Settings dialogue with the Edit HTTPS Settings dialogue. 6 Enter the URL, user name and password, and other information required to point the WiFi Advisor iOS application to your FTP or HTTPS site or database. 7 If any jobs have been exported, Export History appears in the lower right.
Chapter 3 Testing Troubleshooting Problems with Your WiFi Advisor Troubleshooting Problems with Your WiFi Advisor Please refer to the following table if your WiFi Advisor does not seem to be performing correctly. If you still cannot solve your problem, please contact JDSU Technical Assistance on 1-855-ASK-JDSU (1-855-275-5378) or by email at: TAC@jdsu.com.
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A Appendix A Maintenance and Specifications This chapter describes how to maintain your unit. Topics discussed in this chapter include the following: • “Charging the battery” on page 44 • “Replacing the battery pack” on page 44 • “Cleaning the instrument” on page 45 • “Specifications” on page 46 • “Getting Technical Assistance” on page 47 December 2014 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
Appendix A Maintenance and Specifications Charging the battery Charging the battery When the Batt LED lights red, the battery pack should be charged or replaced. NOTE: You can test a circuit and recharge the battery at the same time. If you do not want to interrupt the current test, you may leave the power on and connect the AC power adaptor. To charge the battery 1 Connect one end of the AC adapter to the connector on the back of the WiFi Advisor.
Appendix A Maintenance and Specifications Cleaning the instrument Before replacing the battery pack, verify that the replacement battery pack is JDSU part number 21108524. To replace the battery pack 1 Turn the power off. CAUTION: INSTRUMENT DAMAGE Failure to turn the power off before removing the battery pack from the WiFi Advisor could damage internal components and/or corrupt the software. Always power down the unit before removing the battery pack. 2 Pull the two tabs to release the door.
Appendix A Maintenance and Specifications Specifications Specifications This section provides specifications for the WiFi Advisor. Table 5 Parameter Specification Height 6.1” / 155 mm Width 7” / 178 mm Depth 2.6” / 66 mm Weight 1 lb. / 0.
Appendix A Maintenance and Specifications Getting Technical Assistance Getting Technical Assistance If you need assistance or have questions related to the use of this product, use the information in Table 7 to contact JDSU’s Technical Assistance Center (TAC) for customer support. For the latest TAC contact information, go to www.jdsu.com or contact your local sales office for assistance. The regional sales office phone numbers are listed on the back of this manual.
Appendix A Maintenance and Specifications Getting Technical Assistance Page 48 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
B Appendix B WiFi Fundamentals This chapter provides a general description WiFi and 802.11. Topics discussed in this chapter include the following: • “WiFi deployment” on page 50 • “Network standard” on page 50 • “802.11 specifications” on page 51 • “Spectrum Differences” on page 51 December 2014 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
Appendix B WiFi Fundamentals WiFi deployment WiFi deployment Successful WiFi service delivery is highly dependent on a vulnerable RF physical medium that is dynamically shared, along with complex L2 (i.e. 802.11) and supporting protocols. This makes installation of service a potentially complex task.
Appendix B WiFi Fundamentals 802.11 specifications 802.11 specifications 802.11 is the “parent” of a family of Institute of Electronics and Electronic Engineering (IEEE) specifications for wireless LAN. The standard has undergone several revisions: 802.11a Main Frequency Band (GHz) 5 54 20 OFDM No 802.11b 2.4 11 22 DSSS No 802.11g 2.4 54 20 OFDM/DSSS No 802.11n 2.4/5 65/135 20/40 OFDM 4 802.
Appendix B WiFi Fundamentals Spectrum Differences gets a FCC Part 15 approval (Bluetooth devices, cordless telephones, baby monitors and microwave ovens). Figure 16 Page 52 2.4G channel allocation WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
Appendix B WiFi Fundamentals Spectrum Differences 5 GHz Spectrum A lot of these frequencies are used for satellite communications (low power). That means to them, WiFi is the interferer. U-NII stands for Unlicensed National Information Infrastructure and was set aside primarily for WiFi use. Most of the world uses the spectrum from 5.18 – 5.835 GHz. Note that another ISM band exists here (cordless telephones, point-to-point radios, baby monitors).
Appendix B WiFi Fundamentals Spectrum Differences This band can vary in a greater number of regions, as shown in Figure 18, and.certain channels are designated as indoor use only or outdoor use. Figure 18 International channel map The terms “Indoor” or “Outdoor” relate to output power restrictions on the radios. Page 54 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
C Appendix C Customer Services and Support This appendix provides information about standard support services, add-on services, and training available through JDSU. Topics discussed in this appendix include: • “About our services” on page 56 • “Standard support services” on page 56 • “Add-on services” on page 57 • “Training options” on page 59 December 2014 WiFi Advisor Wireless LAN Analyzer User’s Guide 22073751, Rev.
Appendix C Customer Services and Support About our services About our services JDSU offers an unmatched and comprehensive portfolio of standard support services, add-on services, and training options to help customers successfully use purchased JDSU products. Services that come standard with every product sale include business hour technical assistance, in-warranty repair, calibration services, upgrade services, and immediate return authorizations.
Appendix C Customer Services and Support Add-on services For more information, including instructions for returning equipment for repair and/ or calibration, go to: www.jdsu.com/en-us/Test-and-Measurement/support/repairand-calibration/Pages/default.aspx. Technical assistance (business hour) Expert business hour technical support is provided with your product. For assistance related to the use of your product, call or e-mail JDSU’s Technical Assistance Center (TAC) in your region.
Appendix C Customer Services and Support Add-on services • Extended product and systems support, including: – Optional extended product warranties – Optional extended repair services – Calibration management services – Around-the-clock technical assistance – A certified pre-owned equipment program – Tailored support services for your JDSU system • Various professional and consulting services • Specialized managed services For more information, refer to the following subsections.
Appendix C Customer Services and Support Training options Professional and consulting services For information about optional professional and consulting services available from JDSU, go to: www.jdsu.com/en-us/Test-and-Measurement/services/professionaland-consulting-services/Pages/default.aspx. Managed services For information about specialized managed services available from JDSU, go to: www.jdsu.com/en-us/Test-and-Measurement/services/managed-services/Pages/ default.aspx.
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Glossary A AP — Access Point. The 802.11 device which allows wireless devices to connect to a wired network (in general) B BSSID — Basic service set identifier. An identifier that represents a single 802.11 cell (similar to a MAC address) C Client — Client – device with connects to an access point, does not function as an AP (but can operate as a wired to wireless “adapter”) CPE — Customer Premise Equipment D DSSS — Digital Sequence Spread Spectrum. A type of Modulation.
Glossary MTTO — Mean Time To Optimize MTTR — Mean Time To Repair O OFDM — Orthogonal Frequency Division Multiplexing R Retransmission retries — For packets requiring retransmission, this is the number of retries required to successfully retransmit the packet RF — Radio Frequency. RF energy can cause interference RSSI — Received Signal Strength Indication S SNR — Signal to Noise Ratio Spectral — A spectrum analyzer is used to measure signal amplitude (strength) as it varies by signal frequency.
Index Numerics F 2.4G spectrum 51 5G spectrum 53 802.
Index P Pairing devices with the iPad 12 Product repair 56 T Q Testing single-ended 18 site assessment 30 two-ended 25 Quick tour 4 R Page 64 Specifications 46 Spectral measurements 24 Spectrum analyzer 23 Recharging the battery 44 Registering devices on the iPad 12 Replacing the batteries 44–45 Replacing the battery 44 U S W Safety information xii Single-ended test 18 Site assessment configuring 28 description 25 test 30 WiFi Advisor iPad app 8 WiFi fundamentals 49 Updating host software 15
Network and Service Enablement Regional Sales North America Toll Free: 1 855 ASK JDSU Latin America Tel: +55 11 5503 3800 Asia Pacific Tel: +852 2892 0990 www.jdsu.com 22073751 Rev.
