A28AIRSTREAM4000WiMAX Outdoor CPE

AirStream 4000 © Copyright of KZ Broadband Technologies Ltd. 1601 Tower C, Skyworth Building, High-Tech Industrial Park, Nanshan District, Shenzhen, China 518057 Tel: +86 (755) 33639088 Fax: +86 (755) 33631919 www.kztech.cn AirStream TM 4000 WiMAX Outdoor CPE Reliable & Convenient Wireless Broadband Access The KZTECH AirStream TM 4000 Customer Premises Equipment (CPE) is a high performance 802.16e WiMAX CPE product designed to enable quick WiMAX service deployment to the remote customers. It provides high data throughput and networking features to end users who need both bandwidth and roaming capabilities in the certain area. RELIABLE PERFORMANCE AirStream TM 4000 is a cost effective outdoor data CPE based on the WiMAX Forum's standard implementation of the IEEE 802.16e Wave II specification. It is able to meet the most demanding requirements of large service providers with high throughput and availability. It also supports standard TR069 and OMA-DM management interface for centralized auto provision and upgrade management. Network operators can count on the performance as well as reliability of this device. It has one data port and a simple firewall for security, providing an effective all-in-one solution to home networking needs. Factors such as integrated design, reduced power consumption, increased effective antenna gain, and improved heat dissipation design further improve the operational life span of this device. AirStream TM 4000 can provide quick broadband wireless access. Its built-in router function provides multiple VLAN support, TOS/DSCP tagging and rate limiting to ensure greater service feasibility and reliability. Easy-to-read signal strength indicators and data activity indicator in the back panel make it intuitive for users to check the status of the device. CONVENIENT USAGE & MANAGEMENT The AirStream TM 4000 is a user-friendly WiMAX CPE, and very easy to install and maintain. Easy and simple installation for non professional user delivers instant broadband anywhere. All access ports in the plug and play AirStream TM 4000 are integrated and it comes with all the necessary device drivers pre-loaded. Subscribers just connect the device to their computer or home switch/router and the device is ready to offer an experience of surfing over Internet. The LEDs on the AirStream TM 4000 have also been designed for user convenience, and offer a clear sign of what the device is doing. The compact design is well suited for residential home use in the outdoor environment. The IP addresses can be statically allocated or dynamically obtained via DHCP. AirStream TM 4000 offers rich management features which facilitate the task of carrier. It supports local management access, Telnet, WEB, and centralized remote OTA configuration, upgrades management and device monitoring via KZ Tech iManager TM 2000 EMS product. To meet the different requirements of varied countries and regions, AirStream TM 4000 is designed to be operated under several frequencies bands. It supports wide frequency bands in 2.3-2.7GHz and 3.3-3.6GHz, which covers almost all the main frequency for WiMAX network globally. TECHNICAL FEATURES AirStream TM 4000 supports for 2x2 MIMO, adaptive modulation and coding (AMC) technology to maximize the system capacity and bandwidth throughput by automatically adjusting modulation to respond to various signal qualities. With high gain directional patch antenna, AirStream TM 4000 enables a longer reception range from the base station. This yields more efficient use of the network with a larger cell reach, guaranteed carrier class service, and customer service probability. Advanced Orthogonal Frequency Division Multiplexing (OFDM) modulation enhances performance in non-line-of-sight (NLOS) conditions to ensure immunity to interference and multi-path conflicts typical of deployments in densely populated urban areas. Moreover, sophisticated QoS capabilities in the 802.16e MAC ensure true end-to-end QoS and support high quality data services. The integrated product architecture allows the lowest possible cost of ownership. Simple installation procedure further reduces the product deployment and support cost for service providers. AirStream 4000 © Copyright of KZ Broadband Technologies Ltd. 1601 Tower C, Skyworth Building, High-Tech Industrial Park, Nanshan District, Shenzhen, China 518057 Tel: +86 (755) 33639088 Fax: +86 (755) 33631919 www.kztech.cn SPECTIFICATION Physical Dimensions 265 mm (L) × 265 mm (W) × 80 mm (D) Weight < 3 Kg Power Consumption < 15 W Power Supply 48VDC (PoE) Environmental Temperature - 30 °C -- 55 °C Humidity 95% maximum Non-condensing Wireless Interface Frequency Bands 3.65-3.7 GHz Radio Access 802.16e (Wave 2 MIMO) Operation Mode TDD (2x2 MIMO) Channel Bandwidth 7 / 8.75/ 10 MHz Antenna Gain 15 dbi (cross polarized) Modulation QPSK, 16QAM, 64QAM FFT 1024/512 FFT points FEC Convolution and Turbo Code Authentication TTLS/TLS User Interfaces Data Interface: 1 RJ45 10/100M LAN Port LED Indicator: Power, System Run, LAN Activity, WiMAX RF Signal (4), Power Supply: 48 VDC Passive PoE Data Networking Networking Configuration DHCP or static IP address assignment Bridge and Router Operation Support Built-in DHCP Server for LAN devices ETH-CS and IP-CS Auto Adaptation Data Features 802.1p/q, DSCP or TOS marking VPN Pass-through support (PPTP, L2TP and IPsec) Built-in L2TP client support Firewall & Access Control IP Filtering, Virtual Server and SPI Firewall LAN Device Access Control Device Management Management Features CLI, Telnet and WEB management interfaces SNMP and SYSLOG for Log and Alarm Reporting Auto Provision & Upgrade Management Standard TR069 management with WIB Support OMA-DM Management Support Industry Standards IEEE IEEE 802.3 10Base Ethernet IEEE 802.3u Fast Ethernet IEEE 802.1p CoS Priority Protocol IEEE 802.1Q VLAN Tagging AirStream 4000 © Copyright of KZ Broadband Technologies Ltd. 1601 Tower C, Skyworth Building, High-Tech Industrial Park, Nanshan Dist…

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KZ Broadband Technologies, Ltd. 1601 Tower C, Skyworth Building, High-Tech Industrial Park Nanshan District, Shenzhen, Guangdong, China -------------------------------------------------------------------------------- (FCC ID：A28AIRSTREAM4000) POWER OF ATTORNEY DATE: 2015-07-09 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen SEM.Test Technology Co., Ltd. Jandy So on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen SEM.Test Technology Co., Ltd. Jandy So on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, KZ Broadband Technologies, Ltd., are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, KZ Broadband Technologies, Ltd. ------------------------- (Lin Feng) (Project Engineer)

KZ Broadband Technologies, Ltd. 1601 Tower C, Skyworth Building, High-Tech Industrial Park Nanshan District, Shenzhen, Guangdong, China --------------------------------------------------------------------------------------------------------------------- Letter for Confidentiality Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: A28AIRSTREAM4000 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Schematics A28AIRSTREAM4000_FCCID_Schematics Block Diagram A28AIRSTREAM4000_FCCID_BlockDiagram Operational Description A28AIRSTREAM4000_FCCID_OperationalDescription BOM A28AIRSTREAM4000_FCCID_BOM PCBLaout&PartPlacement A28AIRSTREAM4000_FCCID_PCBLaout&PartPlacement The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, KZ Broadband Technologies, Ltd. --------------------------------------- (Lin Feng)

KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15038046I-1 FCC PART 90Z EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15038046I-1 FCC PART 90Z EUT View 3 EUT View 4 KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15038046I-1 FCC PART 90Z EUT View 5

KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15038046I-1 FCC PART 90Z EXHIBIT 1 - PRODUCT LABELING FCC ID: A28AIRSTREAM4000 This device complies with Part 15 of the FCC Rules. 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. Specifications: Text is Black in color and justified. Labels are printed in indelible ink on permanent adhesive silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Proposed Label Location on EUT FCC ID Label Location

KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15038046I-1 FCC PART 90Z EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 EUT Housing and Board View 2 KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15038046I-1 FCC PART 90Z Solder Board-Component View 1 Solder Board-Component View 2 TX&RX Antenna Connector KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15038046I-1 FCC PART 90Z Solder Board-Component View 3 Antenna View TX&RX Antenna

Tune up procedure Tune up procedure shall be over the power range or at specific operating power levels. 1. It should provide an operational voltage (120V AC) to turn on the device and on one certain channel in service mode by means of company proprietary software. 2. The maximum gains of each individual device are adjusted until the target value met. z For 7MHz Bandwidth： PWR = 35±1dBm z For 8.75MHz Bandwidth： PWR = 35±1dBm z For 10MHz Bandwidth PWR = 36±1dBm Then these appropriate gain settings are stored in each device individually. The user has no possibility to change these settings later on, and during manufacturing each device will be individual calibrated. The measurement is done in fully calibrated setup, the highest power level is verified afterwards in a call measurement on three channels (low, middle and high).

KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15068199I-1 PAGE 1 OF 108 FCC PART 90Z FCC Part 90 Measurement and Test Report For KZ Broadband Technologies, Ltd. 1601 Tower C, Skyworth Building, High-Tech Industrial Park Nanshan District, Shenzhen, Guangdong, China FCC ID: A28AIRSTREAM4000 FCC Rules: FCC Part 90Z Product Description: WIMAX Outdoor CPE Tested Model: AirStream 4000 Report No.: STR15068199I-1 Tested Date: 2015-06-23 to 2014-07-07 Issued Date: 2015-07-08 Tested By: Seven Song/ Engineer Reviewed By: Lahm Peng / EMC Manager Approved & Authorized By: Jandy So / PSQ Manager Prepared By: Shenzhen SEM.Test Technology Co., Ltd. 1/F, Building A, Hongwei Industrial Park, Liuxian 2nd Road, Bao'an District, Shenzhen, P.R.C.（518101） Tel.: +86-755-33663308 Fax.: +86-755-33663309 Website: www.semtest.com.cn Note: This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen SEM. Test Technology Co., Ltd. KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15068199I-1 PAGE 2 OF 108 FCC PART 90Z TABLE OF CONTENTS 1. GENERAL INFORMATION ................................................................................................................................... 3 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ............................................................................... 3 1.2 TEST STANDARDS ................................................................................................................................................... 4 1.3 TEST METHODOLOGY ............................................................................................................................................. 4 1.4 TEST FACILITY ....................................................................................................................................................... 4 1.5 EUT SETUP AND TEST MODE ................................................................................................................................. 5 2. SUMMARY OF TEST RESULTS ........................................................................................................................... 6 3. RF EXPOSURE ......................................................................................................................................................... 7 3.1 STANDARD APPLICABLE ......................................................................................................................................... 7 3.2 TEST RESULT.......................................................................................................................................................... 7 4. RF OUTPUT POWER .............................................................................................................................................. 8 4.1 STANDARD APPLICABLE ......................................................................................................................................... 8 4.2 TEST EQUIPMENT LIST AND DETAILS ..................................................................................................................... 8 4.3 TEST PROCEDURE ................................................................................................................................................... 8 4.4 ENVIRONMENTAL CONDITIONS .............................................................................................................................. 8 4.5 SUMMARY OF TEST RESULTS/PLOTS ...................................................................................................................... 9 5. EMISSION BANDWIDTH ..................................................................................................................................... 27 5.1 STANDARD APPLICABLE ....................................................................................................................................... 27 5.2 TEST EQUIPMENT LIST AND DETAILS ................................................................................................................... 27 5.3 TEST PROCEDURE ................................................................................................................................................. 27 5.4 ENVIRONMENTAL CONDITIONS ............................................................................................................................ 27 5.5 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 28 6. SPURIOUS CONDUCTED EMISSIONS ............................................................................................................. 38 6.1 STANDARD APPLICABLE ....................................................................................................................................... 38 6.2 TEST EQUIPMENT LIST AND DETAILS ................................................................................................................... 38 6.3 TEST PROCEDURE ................................................................................................................................................. 38 6.4 ENVIRONMENTAL CONDITIONS ............................................................................................................................ 38 6.5 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 38 7. SPURIOUS RADIATED EMISSIONS .................................................................................................................. 53 7.1 STANDARD APPLICABLE ....................................................................................................................................... 53 7.3 TEST EQUIPMENT LIST AND DETAILS ....................…

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KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15038046I-1 FCC PART 90Z EXHIBIT 4 - TEST SETUP PHOTOGRAPHS Radiation Emission Test Setup (Below 30MHz) Radiation Emission Test Setup (30MHz to 1GHz) KZ Broadband Technologies, Ltd. Model: AirStream 4000 REPORT NO.: STR15038046I-1 FCC PART 90Z Radiation Emission Test Setup (Above 1GHz)