Q87-WAP54GPWireless-G Access Point with POE

A Division of Cisco Systems, Inc. ® Model No. Access Point with Wireless-G WAP54GP User Guide WIRELESS GHz 2.4 802.11g Power Over Ethernet Wireless-G Access Point with Power Over Ethernet Copyright and Trademarks Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2005 Cisco Systems, Inc. All rights reserved. Other brands and product names are trademarks or registered trademarks of their respective holders. How to Use this User Guide The user guide to the Wireless-G Access Point with Power Over Ethernet has been designed to make understanding networking with the Access Point easier than ever. Look for the following items when reading this User Guide: In addition to these symbols, there are definitions for technical terms that are presented like this: Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like this: Figure numbers and descriptions can also be found in the “List of Figures” section. This exclamation point means there is a caution or warning and is something that could damage your property or the Access Point. word: definition. This checkmark means there is a note of interest and is something you should pay special attention to while using the Access Point. This question mark provides you with a reminder about something you might need to do while using the Access Point. Figure 0-1: Sample Figure Description WAP54GP-UG-50422NC JL WARNING:This product contains chemicals, including lead, known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. Wireless-G Access Point with Power Over Ethernet Table of Contents Chapter 1: Introduction1 Welcome1 What’s in this User Guide?2 Chapter 2: Planning Your Wireless Network4 Network Topology4 Roaming4 Network Layout5 Chapter 3: Getting to Know the Wireless-G Access Point with Power Over Ethernet6 The Front Panel6 The Back Panel7 Chapter 4: Connecting the Wireless-G Access Point with Power Over Ethernet 8 Overview8 Connections for Setup8 Placement Options9 Chapter 5: Setting Up the Wireless-G Access Point with Power Over Ethernet 10 Setup Wizard10 Chapter 6: Configuring the Wireless-G Access Point with Power Over Ethernet 19 Overview19 Navigating the Utility19 Accessing the Utility21 The Setup Tab21 The Wireless - Basic Wireless Settings Tab23 The Wireless - Wireless Security Tab25 The Wireless - Wireless Network Access Tab29 The Wireless - Advanced Wireless Settings Tab30 The AP Mode Tab32 The Administration - Management Tab35 The Administration - Log Tab37 The Administration - Factory Default Tab38 The Administration - Firmware Upgrade Tab38 The Administration - Language Upgrade Tab39 Wireless-G Access Point with Power Over Ethernet The Administration - Reboot Tab39 The Administration - Config Management Tab40 The Status - Local Network Tab41 The Status - Wireless Tab42 The Status - System Performance Tab43 Appendix A: Troubleshooting45 Frequently Asked Questions45 Appendix B: Wireless Security49 Security Precautions49 Security Threats Facing Wireless Networks49 Appendix C: Upgrading Firmware52 Appendix D: Windows Help53 Appendix E: Glossary54 Appendix F: Specifications61 Appendix G: Warranty Information63 Appendix H: Regulatory Information64 Appendix I: Contact Information70 Wireless-G Access Point with Power Over Ethernet List of Figures Figure 3-1: Front Panel6 Figure 3-2: Back Panel7 Figure 4-1: Connect the Ethernet Network Cable8 Figure 4-2: Connect the Power8 Figure 4-3: The Access Point’s Stand Slots9 Figure 4-4: The Access Point’s Wall-Mount Slots9 Figure 5-1: Setup Wizard’s Welcome Screen10 Figure 5-2: Connect the Network Cable to Your Switch or Router11 Figure 5-3: Connect the Network Cable to the Access Point11 Figure 5-4: Power on the Access Point12 Figure 5-5: Check the Access Point’s Status12 Figure 5-6: Select an Access Point13 Figure 5-7: Login Screen13 Figure 5-8: Configure Network Address Settings Screen14 Figure 5-9: Wireless Settings Screen15 Figure 5-10: Wireless Security Settings - WEP Screen16 Figure 5-11: Wireless Security Settings - WPA-Personal Screen17 Figure 5-12: Wireless Power Management Screen17 Figure 5-13: Confirmation Screen18 Figure 5-14: Congratulations Screen18 Figure 6-1: Login Screen21 Figure 6-2: Setup - Automatic Configuration - DHCP Screen21 Figure 6-3: Setup - Static IP Address Screen22 Figure 6-4: Wireless - Basic Wireless Settings Screen23 Figure 6-5: Wireless - Wireless Security (WPA-Personal) Screen25 Figure 6-6: Wireless Security - WPA-Enterprise Screen26 Figure 6-7: Wireless Security - RADIUS Screen27 Figure 6-8: Wireless Security - WEP Screen28 Wireless-G Access Point with Power Over Ethernet Figure 6-9: Wireless - Wireless Network Access Screen29 Figure 6-10: Select MAC Address Screen29 Figure 6-11: Wireless - Advanced Wireless Settings Screen30 Figure 6-12: AP Mode Screen32 Figure 6-13: Wireless Repeater Diagram33 Figure 6-14: Site Survey Screen33 Figure 6-15: Wireless Bridge Diagram34 Figure 6-16: Administration - Management Screen35 Figure 6-17: Administration - Log Screen37 Figure 6-18: Administration - Factory Default Screen38 Figure 6-19: Administration - Firmware Upgrade Screen38 Figure 6-20: Administration - Language Upgrade Screen39 Figure 6-21: Administration - Reboot Screen39 Figure 6-22: Administration - Config Management Screen40 Figure 6-23: Status - Local Network Screen41 Figure 6-24: Status - Wireless Screen42 Figure 6-25: Status - System Performance Screen43 Figure C-1: Firmware Upgrade52 1 Chapter 1: Introduction Welcome Wireless-G Access Point with Power Over Ethernet Chapter 1: Introduction Welcome Thank you for choosing the Wireless-G Access Point with Power Over Ethernet. This Access Point will allow you to network wirelessly better than ever. How does the Access Point do all of this? An access point allows f…

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16 Chapter 5: Setting Up the Wireless-G Access Point with Power Over Ethernet Setup Wizard Wireless-G Access Point with Power Over Ethernet 11. The Wireless Security Settings screen will appear next. From this screen, you can set the level of security you desire for each of your three networks. First, select the wireless network you want to configure, Main SSID, SSID1, or SSID2. Then select from WEP (64-Bit), WEP (128-Bit), and WPA-Personal, and follow the appropriate instructions below. If you want to use WPA-Enterprise, then select Disabled from the Security drop-down menu. (You will have to use the Web-based Utility to set up WPA-Enterprise or RADIUS; for more information, refer to “Chapter 6: Configuring the Wireless-G Access Point with Power Over Ethernet.”) After you have entered the settings for your three wireless networks, click the Next button to continue or Back to return to the previous page. For more information on wireless security, refer to “Appendix B: Wireless Security.” •WEP (64-Bit) or WEP (128-Bit). Enter the Passphrase for your network. If want to manually enter the WEP key, then leave the Passphrase field blank and enter the WEP key in the Key 1 field. The WEP key can consist of the letters “A” through “F” and the numbers “0” through “9” and should be 10 characters in length for 64-bit encryption or 26 characters in length for 128-bit encryption. After you have entered the settings for your three wireless networks, click the Next button to continue or Back to return to the previous page. Figure 5-10: Wireless Security Settings - WEP Screen bit: a binary digit. wpa (wi-fi protected access): a wireless security protocol using TKIP (Temporal Key Integrity Protocol) encryption, which can be used in conjunction with a RADIUS server. wep (wired equivalent privacy): a method of encrypting network data transmitted on a wireless network for greater security. passphrase: used much like a password, a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products. 17 Chapter 5: Setting Up the Wireless-G Access Point with Power Over Ethernet Setup Wizard Wireless-G Access Point with Power Over Ethernet •WPA-Personal. With WPA-Personal, you will use TKIP or AES for encryption with dynamic keys. Then enter a Pre-Shared Key of 8-63 characters. After you have entered the settings for your three wireless networks, click the Next button to continue or Back to return to the previous page. 12. The Wireless Power Management screen will appear. You can adjust the power output of the Access Point to get the appropriate coverage for your wireless network. Select the setting appropriate for your environment. If you are not sure which setting to choose, then keep the default setting, 100%. Click the Next button to continue or Back to return to the previous page. Figure 5-11: Wireless Security Settings - WPA-Personal Screen Figure 5-12: Wireless Power Management Screen tkip (temporal key integrity protocol): a wireless encryption protocol that provides dynamic encryption keys for each packet transmitted. 18 Chapter 5: Setting Up the Wireless-G Access Point with Power Over Ethernet Setup Wizard Wireless-G Access Point with Power Over Ethernet 13. On the Confirmation screen, make sure your new settings for the Main SSID are correct. Click the SSID1 and SSID2 radio buttons to view their settings. To save your new settings, click the Yes button. If you do not want to save your changes, then click the No button. 14. At this point, the configuration performed with the Setup Wizard is complete. To configure any other Access Points in your network, you can run this Setup Wizard again. Click the Online Registration button to register the Access Point, or click the Exit button to exit the Setup Wizard. For more advanced configuration, you can go to “Chapter 6: Configuring the Wireless-G Access Point with Power Over Ethernet.” Figure 5-13: Confirmation Screen Figure 5-14: Congratulations Screen 19 Chapter 6: Configuring the Wireless-G Access Point with Power Over Ethernet Overview Wireless-G Access Point with Power Over Ethernet Chapter 6: Configuring the Wireless-G Access Point with Power Over Ethernet Overview The Access Point has been designed to be functional right out of the box, with the default settings in the Setup Wizard. However, if you'd like to change these settings, the Access Point can be configured through your web browser with the Web-based Utility. This chapter explains how to use the Utility. The Utility can be accessed via Microsoft Internet Explorer or Netscape Navigator through use of a computer that is networked with the Access Point. For a basic network setup, most users only have to use the following screens of the Utility: • Setup On the Setup screen, enter your basic network settings here. • Management Click the Administration tab and then select the Management screen. The Access Point’s default password is admin. To secure the Access Point, change the AP Password from its default. Navigating the Utility There are five main tabs: Setup, Wireless, AP Mode, Administration, and Status. Additional screens will be available from most of the main tabs. Setup Enter the settings for the Access Point and your Internet connection on this screen. Wireless You will use the Wireless tabs to enter a variety of wireless settings for the Access Point. •Basic Wireless Settings. Enter the network mode, Virtual Local Area Network (VLAN) settings, SSIDs, and other settings on this screen. HAVE YOU:Enabled TCP/IP on your PCs? PCs communicate over the network with this protocol. Refer to “Appendix D: Windows Help” for more information on TCP/IP. NOTE:The Access Point is designed to function properly after using the Setup Wizard. This chapter is provided solely for those who wish to perform more advanced configuration or monitoring. browser: an application that provides a way to look at and interact with all the information on the World Wide W…

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30 Chapter 6: Configuring the Wireless-G Access Point with Power Over Ethernet The Wireless - Advanced Wireless Settings Tab Wireless-G Access Point with Power Over Ethernet The Wireless - Advanced Wireless Settings Tab This screen allows you to configure the advanced settings for the Access Point. In most cases, these settings do not need to be changed. Advanced Wireless You can change the data transmission and output power settings for the Access Point. CTS Protection Mode. The CTS (Clear-To-Send) Protection Mode function boosts the Access Point’s ability to catch all Wireless-G transmissions but will severely decrease performance. Keep the default setting, Auto, so the Access Point can use this feature as needed, when the Wireless-G products are not able to transmit to the Access Point in an environment with heavy 802.11b traffic. Select Enabled if you want to permanently enable this feature, or select Disabled if you want to permanently disable this feature. Wireless Isolation. When this feature is enabled, PCs using different SSIDs cannot see each other, so the different wireless networks are kept separate from each other. In most cases, including wireless hotspots, keep the default, Enabled. If you want PCs from different wireless networks to communicate, select Disabled. Basic Data Rates. This setting is not actually one rate of transmission but a series of rates that are advertised to the other wireless devices in your network, so they know at which rates the Access Point can transmit. At the Default setting, the Access Point will advertise that it will automatically select the best rate for transmission. Other options are 1-2Mbps, for use with older wireless technology, and All, when you wish to have all rates advertised. The Basic Data Rates are not the rates transmitted; the rates transmitted can be configured through the TX Rate setting on the Wireless - Basic Wireless Settings tab. Beacon Interval. This value indicates the frequency interval of the beacon. A beacon is a packet broadcast by the Access Point to keep the network synchronized. A beacon includes the wireless networks service area, the Access Point address, the Broadcast destination addresses, a time stamp, Delivery Traffic Indicator Maps, and the Traffic Indicator Message (TIM). DTIM Interval. This value indicates how often the Access Point sends out a Delivery Traffic Indication Message (DTIM). Lower settings result in more efficient networking, while preventing your PC from dropping into power- saving sleep mode. Higher settings allow your PC to enter sleep mode, thus saving power, but interferes with wireless transmissions. RTS Threshold. This setting determines how large a packet can be before the Access Point coordinates transmission and reception to ensure efficient communication. This value should remain at its default setting of 2347. Should you encounter inconsistent data flow, only minor modifications are recommended. Figure 6-11: Wireless - Advanced Wireless Settings Screen cts (clear-to-send): a signal sent by a wireless device, signifying that it is ready to receive data. beacon internal: data transmitted on your wireless network that keeps the network synchronized. rts (request to send): a networking method of coordinating large packets through the RTS Threshold setting. dtim (delivery traffic indication message): a message included in data packets that can increase wireless efficiency. packet: a unit of data sent over a network. 31 Chapter 6: Configuring the Wireless-G Access Point with Power Over Ethernet The Wireless - Advanced Wireless Settings Tab Wireless-G Access Point with Power Over Ethernet Fragmentation Threshold. This specifies the maximum size a data packet can be before splitting and creating a new packet. It should remain at its default setting of 2346. A smaller setting means smaller packets, which will create more packets for each transmission. If you have decreased this value and experience high packet error rates, you can increase it again, but it will likely decrease overall network performance. Only minor modifications of this value are recommended. Output Power. You can adjust the output power of the Access Point to get the appropriate coverage for your wireless network. Select the level you need for your environment. If you are not sure which setting to choose, then keep the default setting, 100%. Change these settings as described here and click Save Settings to apply your changes, or click Cancel Changes to cancel your changes. Click Help for more information. fragmentation: breaking a packet into smaller units when transmitting over a network. 32 Chapter 6: Configuring the Wireless-G Access Point with Power Over Ethernet The AP Mode Tab Wireless-G Access Point with Power Over Ethernet The AP Mode Tab On this screen you can change the Access Point’s mode of operation. In most cases, you can keep the default, Access Point. You may wish to do this if you want to use the Access Point as a wireless repeater to extend the range of your wireless network. You may also wish to do this if you want to use the Access Point as a wireless bridge; for example, you can use two Access Points in Wireless Bridge mode to connect two wired networks that are in two different buildings. AP Mode The Access Point offers three modes of operation: Access Point, Wireless Repeater, and Wireless Bridge. For the Repeater and Bridge modes, make sure the SSID, channel, and security settings are the same for the other wireless access points/devices. MAC Address The MAC address of the Access Point is displayed here. Access Point. The Mode is set to Access Point by default. This connects your wireless PCs to a wired network. In most cases, no change is necessary. If you want to let the Access Point’s signal be repeated, then click the checkbox next to Allow wireless signal to be repeated by a repeater. Enter the MAC addresses of the repeaters in the MAC 1-3 fields. Repeaters can be another access point or the…

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45 Appendix A: Troubleshooting Frequently Asked Questions Wireless-G Access Point with Power Over Ethernet Appendix A: Troubleshooting This appendix provides solutions to problems that may occur during the installation and operation of the Wireless-G Access Point with Power Over Ethernet. Read the description below to solve your problems. If you can't find an answer here, check the Linksys website at www.linksys.com. Frequently Asked Questions Can the Access Point act as my DHCP Server? No. The Access Point is nothing more than a wireless hub, and as such cannot be configured to handle DHCP capabilities. Can I run an application from a remote computer over the wireless network? This will depend on whether or not the application is designed to be used over a network. Consult the application’s user guide to determine if it supports operation over a network. Can I play multiplayer games with other users of the wireless network? Yes, as long as the game supports multiple players over a LAN (local area network). Refer to the game’s user guide for more information. What is the IEEE 802.11b standard? It is one of the IEEE standards for wireless networks. The 802.11b standard allows wireless networking hardware from different manufacturers to communicate, provided that the hardware complies with the 802.11b standard. The 802.11b standard states a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz. What is the IEEE 802.11g standard? It is one of the IEEE standards for wireless networks. The 802.11g standard allows wireless networking hardware from different manufacturers to communicate, provided that the hardware complies with the 802.11g standard. The 802.11g standard states a maximum data transfer rate of 54Mbps and an operating frequency of 2.4GHz. What IEEE 802.11b features are supported? The product supports the following IEEE 802.11 functions: •CSMA/CA plus Acknowledge protocol •Multi-Channel Roaming •Automatic Rate Selection •RTS/CTS feature •Fragmentation •Power Management 46 Appendix A: Troubleshooting Frequently Asked Questions Wireless-G Access Point with Power Over Ethernet What IEEE 802.11g features are supported? The product supports the following IEEE 802.11g functions: •CSMA/CA plus Acknowledge protocol •OFDM protocol •Multi-Channel Roaming •Automatic Rate Selection •RTS/CTS feature •Fragmentation •Power Management What is Ad-hoc? An Ad-hoc wireless LAN is a group of computers, each with a WLAN adapter, connected as an independent wireless LAN. An Ad-hoc wireless LAN is applicable at a departmental scale for a branch or SOHO operation. What is Infrastructure? An integrated wireless and wired LAN is called an Infrastructure configuration. Infrastructure is applicable to enterprise scale for wireless access to a central database, or wireless application for mobile workers. What is roaming? Roaming is the ability of a portable computer to communicate continuously while its user is moving freely throughout an area greater than that covered by a single Access Point. Before using the roaming function, the user must make sure that the computer is set to the same channel number as the Access Point of the dedicated coverage area. To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and Access Point, for example, must always acknowledge receipt of each message. Each node must maintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links Access Points and nodes. In such a system, the user’s end node undertakes a search for the best possible access to the system. First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried by each Access Point and the distance of each Access Point to the wired backbone. Based on that information, the node next selects the right Access Point and registers its address. Communications between end node and host computer can then be transmitted up and down the backbone. As the user moves on, the end node’s RF transmitter regularly checks the system to determine whether it is in touch with the original Access Point or whether it should seek a new one. When a node no longer receives acknowledgment from its original Access Point, it undertakes a new search. Upon finding a new Access Point, it then re-registers, and the communication process continues. 47 Appendix A: Troubleshooting Frequently Asked Questions Wireless-G Access Point with Power Over Ethernet What is the ISM band? The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made available worldwide. This presents a truly revolutionary opportunity to place convenient high speed wireless capabilities in the hands of users around the globe. What is Spread Spectrum? Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems. It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that the receiver knows the parameters of the spread-spectrum signal being broadcast. If a receiver is not tuned to the right frequency, a spread-spectrum signal looks like background noise. There are two main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS). What is DSSS? What is FHSS? And what are their differences? Frequency Hopping Spread Spectrum (FHSS) uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiv…

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Cisco-Linksys LLC 121 Theory Drive Irvine, CA 92617 (USA) Phone: 949-261-1288 Fax: 949-823-3002 Date: April 8, 2005 FCC ID: Q87-WAP54GP Federal Communications Commission Authorization and Evaluation Division Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the Applicant hereby requests confidential treatment of information accompanying this Application as outlined below: Schematics Block Diagram The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely yours, _________________________________________ Jennifer Yu / Associate Engineer Cisco-Linksys LLC Tel.: ( 949 ) 823-3188 Fax: ( 949 ) 823-3002 [email protected]

Cisco-Linksys LLC 121 Theory Drive Irvine, CA 92617 (USA) Phone: 949-261-1288 Fax: 949-823-3002 Agency Authorization Letter Date: April 8, 2005 To whom it may concern: We, the undersigned, hereby authorize Advance Data Technology Corp. (ADT) of Taiwan to act on our behalf, as our agent, in the following matters related to the FCC approval of our products: report submittal, related correspondence, the signing of all documents relating to these matters, and any other lawful activity necessary to obtain such certification. Any act carried out by ADT within the scope of this authorization shall have the same effects as our own. This authorization shall expire six months from the original date. If you have any questions regarding the authorization, please don’t hesitate to contact us. Thank you! Sincerely yours, __________________________________________ Jennifer Yu / Associate Engineer Cisco-Linksys LLC Tel.: ( 949 ) 823-3188 Fax: ( 949 ) 823-3002 [email protected]

Model No.: WAP54GP Page 1 CONSTRUCTION PHOTOS OF EUT Page 2

FCC ID Label Location (FCC ID: Q87-WAP54GP)

FCC ID: Q87-WAP54GP Operation is subject to the following two conditions: (1)This device may not cause harmful interference, and (2)this device must accept any interference received, including interference that may cause undesired operation. This device complies with part 15 of the FCC Rules. Made in Taiwan MAC Address: A Division of Cisco Systems, Inc. WAP54GP Model No Serial No: Wireless-G Access Point with POE FOR HOME OR OFFICE USE With FCC Standards Tested to Comply

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FCC ID: Q87-WAP54GP Report No. RF931118L02 Operational Description This device is a Wireless-G Access Point with POE which operates in the 2.4GHz frequency spectrum with throughput of up to 54Mbps which OFDM technique will be applied. If the signal to noise radio is too poor which could not support 54Mbps, the 11Mbps data rate with DSSS technique will be applied. The transmitter of the EUT is powered by AC adapter and POE. The antenna is Dipole antenna with Reverse SMA antenna connector. The other instruction, please have a look at the users manual.

FCC ID: Q87-WAP54GP Report No: SA931118L02 1 RF EXPOSURE REPORT REPORT NO.: SA931118L02 MODEL NO.: WAP54GP ACCORDING: FCC Guidelines for Human Exposure IEEE C95.1 APPLICANT: Cisco-Linksys LLC ADDRESS: 121 Theory Drive Irvine, CA 92617 (USA) ISSUED BY: Advance Data Technology Corporation LAB ADDRESS: No. 47, 14th Ling, Chia Pau Tsuen, Lin Kou Hsiang 244, Taipei Hsien, Taiwan, R.O.C. TEST LOCATION: No. 19, Hwa Ya 2nd Rd., Wen Hwa Tsuen, Kwei Shan Hsiang, Taoyuan Hsien 333, Taiwan, R.O.C. FCC ID: Q87-WAP54GP Report No: SA931118L02 2 RF Exposure Measurement (Mobile Device) 1. Introduction In this document, we try to prove the safety of radiation harmfulness to the human body for our product. The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 is followed. The Gain of the antenna used in this product is measured in a Fully Anechoic Chamber (FAC) calibrated for antenna measurement in ADT, and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis transmission formula is a far field assumption, the calculated result of that is an over-prediction for near field power density. We will take that as the worst case to specify the safety range. 2. RF Exposure Limit According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in 1.1307(b) LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (minutes) (A)Limits For Occupational / Control Exposures 300-1500......F/3006 1500-100,000......56 (B)Limits For General Population / Uncontrolled Exposure 300-1500......F/15006 1500-100,000......1.030 F = Frequency in MHz FCC ID: Q87-WAP54GP Report No: SA931118L02 3 3. Friis Formula Friis transmission formula : Pd = (Pout*G) / (4*pi*r 2 ) where Pd = power density in mW/cm 2 Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = distance between observation point and center of the radiator in cm If we know the maximum Gain of the antenna and the total power input to the antenna, through the calculation, we will know the MPE value at distance r. Ref. : David K. Cheng, Field and Wave Electromagnetics, Second Edition, Page 640, Eq. (11-133). 4. EUT Operating condition The software provided by Manufacturer enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. 5. Classification This device is not fixed inside the host equipment, it…

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