HSW-5811MWIRELESS LAN

HSW-5811M Product EMC Information CONFIDENTIALITY REQUEST Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: August 22, 2003 Gentlemen: Cirronet Inc respectfully requests confidentiality of certain materials provided with the submission of the WIT5811 under FCC ID: HSW-5811M in accordance with FCC Regulations 0.459. The confidentiality request applies to the schematics, parts list, and block diagrams contained in Exhibits (Leave this blank for ACS to fill in) . The WIT5811M has been developed at considerable effort and expense by Cirronet Inc.. These items are considered as Trade Secrets and therefore public access to the proprietary material could possible result in duplication of equipment that could severely damage the company's business advantage. I appreciate your assistance in this matter. Sincerely, Al Patrick, Date: August 22, 2003 Al Patrick Sr. Compliance Engineer Cirronet Inc. 5375 Oakbrook Parkway Norcross, GA 30093

8 September 2003 PO Box 1138 Suwanee, Georgia 30024 REF: WIT5811 Module Certification Dear Mr. Wismer: Regarding Part 15 Unlicensed Modular Transmitter Approval, the following requirements called out in FCC Public Notice DA 00-1407 are observed: 1. The WIT5811 has its own RF shielding. 2. The modulation point is internal to the WIT5811, there are no data or modulation inputs provided. 3. The WIT5811 employs on board power supply regulation. 4. The WIT5811 employs a MMCX connector. According to FCC Public Notice, DA 00-2225, the MMCX qualifies as a unique antenna coupler. 5. The WIT5811 was tested in a stand-alone configuration. 6. The WIT5811 has a label with the FCC ID: HSW-5811M 7. The WIT5811 complies with FCC 15.247 for digital transmission systems. An Integration Guide is provided for every module sold. This guide instructs the user in the proper operation of the device. The text in the guide specifies FCC Part 15 compliance: 8. The use of the WIT5811 in any application where the antenna is 20 cm or less distance to the body is not allowed. This is specified in the Integration Guide previous to the Table of Contents. The text follows: Maximum Permissible Exposure (MPE) Limits • Information to user/installer regarding FCC s Maximum Permissible Exposure (MPE) limits. • Notice to users/installers using the following fixed antennas, with Cirronet RF products: Mobile Mark 14dBi Corner Reflector, Cirronet 13dBi Patch Mobile Mark 9dBi Omnidirectional The field strength radiated by any one of these antennas, when connected to Cirronet RF products, may exceed FCC mandated RF exposure limits. FCC rules require professional installation of these antennas in such a way that the general public will not be closer than 20 cm from the radiating aperture of any of these antennas. End users of these systems must also be informed that RF exposure limits may be exceeded if personnel come closer than 20 cm to the apertures of any of these antennas. • Notice to users/installers using the following mobile antenna, with Cirronet RF products: Ace 2dBi dipole The field strength radiated by any one of these antennas, when connected to Cirronet RF products, may exceed FCC mandated RF exposure limits. FCC rules require professional installation of these antennas in such a way that the general public will not be closer than 20 cm from the radiating aperture of any of these antennas. End users of these systems must also be informed that RF exposure Note: This unit has been tested and found to comply with the limits for a class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Commensurate with EIRP limits specified in FCC Rules 15.247b, this device may not be used with antennas that exceed 36dB of gain in point-to-point applications or 16dB of gain in multi-point applications. limits may be exceeded if personnel come closer than 20 cm to the apertures of any of these antennas. Sincerely, James F. Kiernan [email protected] Cirronet Inc. 5375 Oakbrook Pkwy Norcross Georgia, 30093 678-684-2000 x144 678-684-2001

ACS Report: 03-0143-15BC Advanced Compliance Solutions FCC Part 15 Certification Test Report 5.8 GHz Digital Transmission System Radio Module FCC ID: HSW-5811M FCC Rule Part: 15.247 ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 External Photographs Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Figure 1: Top-Front View Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Figure 2: Top-Rear View Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Figure 3: Bottom-Front View Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Figure 4: Top-Rear View

5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 FCC Part 15 Certification Test Report 5800 MHz Digital Transmission System Radio Module FCC ID: HSW-5811M FCC Rule Part: 15.247 ACS Report Number: 03-0143-15B Manufacturer: Cirronet, Inc. Model: WIT5811 Label Information Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 Figure 1: Label for WIT 5811 Radio Module Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 Figure 1: Location of label on Radio Module The FCC ID sticker is mounted center on the top shield. The top is defined as the plain with the coax connector facing up.

ACS Report: 03-0143-15BC Advanced Compliance Solutions FCC Part 15 Certification Test Report 5.8 GHz Digital Transmission System Radio Module FCC ID: HSW-5811M FCC Rule Part: 15.247 ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Internal Photographs Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Figure 1: Internal – Top View 1 Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Figure 2: Internal –Bottom View Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Figure 3: Internal – RF Circuitry

5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 FCC Part 15 Certification Test Report 5.8 GHz Digital Transmission System Radio Module FCC ID: HSW-5811M FCC Rule Part: 15.247 ACS Report Number: 03-0143-15B Manufacturer: Cirronet, Inc. Model: WIT5811 Theory of Operation DIGITAL WIRELESS "ACS_Spec_Theory of Operations.doc", RSW, 9/16/03. 1 of 1 Theory of Operation Frequency band: 5.729-5821 GHz Over the air data rate: 1.2288 Mbps Number of Channels: 75 Channel Spacing: 1.2288 MHz, TX Ch0 = 5729.8944 MHz Maximum user rate: 912.6 Kbps for USB adapter asynchronous serial interface Network: star network, supporting at least 62 users Transmitted power: 24 dBm high power mode; 14 dBm low power mode Rx Sensitivity: -89 dBm (BER=10 -5 ) Blocking level: -35dBm (with received signal 3dB higher than rated sensitivity) ACR: 1dB 2ndACR: 15dB Supply voltage: 12v Antenna Description Manuf. Mod. Number Type Connector Gain Mobile Mark ODN9-5725 Omni N-F 9dBi Mobile Mark SCR14-5725 Corner N-F 14dBi Mobile Mark PSTN3-5725 Omni SMA-M, straight 2dBi Mobile Mark PSWN3-5725 Omni SMA-M, Rt. angle 2dBi Advanced Circuits International A-7030-0492 (Cirronet PN) Patch MMCX-M 14dBi

5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 FCC Part 15 Certification Test Report 5.8 GHz Digital Transmission Radio Module FCC ID: HSW-5811M FCC Rule Part: 15.247 ACS Report Number: 03-0143-15B Manufacturer: Cirronet, Inc. Model: WIT5811 Band Edge Plots

5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 FCC Part 15 Certification Test Report 5.8 GHz Digital Transmission System Radio Module FCC ID: HSW-5811M FCC Rule Part: 15.247 ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Data Plots A Antenna Conducted Spurious Emissions Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Antenna Conducted Spurious Emissions Channel: Low Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Antenna Conducted Spurious Emissions Channel: Center Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Antenna Conducted Spurious Emissions Channel: High

5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 FCC Part 15 Certification Test Report 5.8 GHz Digital Transmission System Radio Module FCC ID: HSW-5811M FCC Rule Part: 15.247 ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Data Plots B Radiated Spurious Emissions Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: Low Antenna: 0dBi Omni Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: Low Antenna: 14dBi Corner Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: Low Antenna: 14dBi Patch Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: Low Antenna: Large Omni Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: Center Antenna: 0dBi Omni Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: Center Antenna: 14dBi Corner Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: Center Antenna: 14dBi Patch Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: Center Antenna: Large Omni Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: High Antenna: 0dBi Omni Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: High Antenna: 14dBi Corner Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: High Antenna: 14dBi Patch Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Data Plots ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test: Radiated Spurious Emissions Channel: High Antenna: Large Omni

5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 FCC Part 15 Certification Test Report 5.8 GHz Digital Transmission System (Modular Approval) FCC ID: HSW-5811M FCC Rule Part: 15.247 ACS Report Number: 03-0143-15BC Manufacturer: Cirronet, Inc. Model: WIT5811 Test Begin Date: July 7, 2003 Test End Date: August 13, 2003 Report Issue Date: September 16, 2003 Prepared by: Reviewed by: R. Sam Wismer Engineering Manager ACS, Inc. Richard Bianco EMI/EMC Approvals Engineer ACS, Inc. This test report shall not be reproduced except in full. This report may be reproduced in part with prior written consent of ACS, Inc. The results contained in this report are representative of the sample(s) submitted for evaluation. This report contains 12 pages Table of Contents 1.0 General 3 1.1 Introduction 3 1.2 Product Description 3 1.2.1 General Description 3 1.2.2 Intended Use 3 1.2.3 Technical Specifications 3 2.0 Location of Test Facility 3 2.1 Description of Test Facility 3 2.1.1 Open Area Test Site 4 2.1.2 Conducted Emissions Test Site 5 3.0 Applicable Standards and References 6 4.0 List of Test Equipment 6 5.0 EUT Setup Block Diagram 7 6.0 Summary of Tests 7 6.1 Section 15.203 - Antenna Requirement 7 6.2 Section 15.207 - Power Line Conducted Emissions 7 6.2.1 Test Methodology 7 6.2.2 Test Results 7 6.3 Section 15.209 - Radiated Emissions (Unintentional Radiation) 8 6.3.1 Test Methodology 8 6.3.2 Test Results 8 6.4 Section 15.247(b)(3) – Peak Output Power 8 6.4.1 Test Methodology 8 6.4.2 Test Results 8 6.5 Section 15.247(a)(2) – 6dB Bandwidth 9 6.5.1 Test Methodology 9 6.5.2 Test Results 9 6.6 Section 15.247(c) - Spurious Emissions 9 6.6.1 Conducted Spurious Emissions 9 6.6.1.1 Test Methodology 9 6.6.1.2 Test Results 9 6.6.2 Radiated Spurious Emissions 10 6.6.2.1 Test Methodology 10 6.6.2.2 Duty Cycle Calculation 11 6.6.2.3 Test Results 12 6.7 Section 15.247(d) – Peak Power Spectral Density 15 6.7.1 Test Methodology 15 6.7.2 Test Results 15 7.0 MODIFICATIONS 15 8.0 CONCLUSION 16 Additional Exhibits Included In Filing Data Plots A – Conducted Spurious Emissions Schematics Data Plots B – Radiated Spurious Emissions Internal Photographs Bill of Materials External Photographs Block Diagram Test Setup Photographs Theory of Operation Product Labeling Info Installation/Users Guide RF Exposure – MPE Calculations Model: WIT5811 FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Page 3 1.0 GENERAL 1.1 Introduction The purpose of this report is to demonstrate compliance with the relevant portions of Title 47, Part 15 of the FCC’s Code of Federal Regulations. 1.2 Product Description 1.2.1 General Description The EUT, is the Cirronet Radio Module Model WIT5800, is a direct sequence radio device operating in the unlicensed band of 5725 - 5850MHz designed for data transmissions. Detailed photographs of the EUT are included separately with this filing. 1.2.2 Intended Use The EUT is intended to be offered to OEM manufacturers for integration into their final products. These products will be limited to mobile or fixed devices as defined by the FCC. 1.2.3 Antennas The following antennas will be offered with the EUT: Manufacturer Model Type Gain EIRP Intended Operation Mobile Mark SCR14-5725CT Corner Reflector 14dBi 38.0 Point-to-Point Mobile Mark ODN9-5725 Omni 9dBi 36.0 Point-to- Multipoint Mobile Mark PSTN5-5725 Omni 2dBi 26dBi Point-to- Multipoint Mobile Mark PSWN3-5725 Omni 2dBi 26dBi Point-to- Multipoint Cirronet A-7030-0492 Patch 14dBi 38.0 Point-to-Point 2.0 LOCATION OF TEST FACILTY All testing was performed by qualified ACS personnel located at the following address: ACS, Inc. 5015 B.U. Bowman Drive Buford, GA 30518 2.1 DESCRIPTION OF TEST FACILITY Both the Open Area Test Site(OATS) and Conducted Emissions site have been fully described, submitted to, and accepted by the FCC, Industry Canada and the Japanese Voluntary Control Council for Interference by information technology equipment. The following certification numbers have been issued in recognition of these accreditations and certifications: FCC Registration Number: 89450 Industry Canada Lab Code: IC 4175 VCCI Member Number: 1831 ƒ VCCI OATS Registration Number R-1526 ƒ VCCI Conducted Emissions Site Registration Number: C-1608 Model: WIT5811 FCC ID: HSW-5811M ACS Report: 03-0143-15BC Advanced Compliance Solutions Page 4 2.1.1 Open Area Test Site The open area test site consists of a 40’ x 66’ concrete pad covered with a perforated electro-plated galvanized sheet metal. The perforations in the sheet metal are 1/8” holes that are staggered every 3/16”. The individual sheets are placed to overlap each other by 1/4” and are riveted together to provide a continuous seam. Rivets are spaced every 3” in a 3 x 20 meter perimeter around the antenna mast and EUT area. Rivets in the remaining area are spaced as necessary to properly secure the ground plane and maintain the electrical continuity. The entire ground plane extends 12’ beyond the turntable edge and 16’ beyond the antenna mast when set to a 10 meter measurement distance. The ground plane is grounded via 4 - 8’ copper ground rods, each installed at a corner of the ground plane and bound to the ground plane using 3/4" stainless steel braided cable. The turntable is an all aluminum 10’ flush mounted table installed in an all aluminum frame. The table is remotely operated from inside the control room located 40’ from the range. The turntable is electrically bonded to the surrounding ground plane via steel fingers installed on the edge of the turn table. The steel fingers make constant contact with the ground plane during operation. Adjacent to the turntable is a 7’ x 7’ square and 4’ deep concrete pit used for support equipment if necessary. The pit is equipped with 5 - 4” PVC chases from the pit to the control room that allow for cabling to the EUT if necessary. The underside of the turntable can be accessed from the pit so cables can be supplied to the EUT from…

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5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 FCC Part 15 Certification Test Report 5.8 GHz Digital Transmission System Radio Module FCC ID: HSW-5811M FCC Rule Part: 15.247 ACS Report Number: 03-0143-15B Manufacturer: Cirronet, Inc. Model: WIT5811 Setup Photographs Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 Table 1: Antennas Offered With the EUT Manufacturer Model Type Gain EIRP Intended Operation Mobile Mark SCR14-5725CT Corner Reflector 14dBi 38.0 Point-to-Point Mobile Mark ODN9-5725 Omni 9dBi 36.0 Point-to- Multipoint Mobile Mark PSTN5-5725 Omni 2dBi 26dBi Point-to- Multipoint Mobile Mark PSWN3-5725 Omni 2dBi 26dBi Point-to- Multipoint Cirronet A-7030-0492 Patch 14dBi 38.0 Point-to-Point Figure 1: Mobile Mark SCR14-5725CT - 14dBi Corner Reflector Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 Figure 2: Mobile Mark ODN9-5725 – 9 dB Omni Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 Figure 3: Mobile Mark PSTN5-5725 / PSWN3-5725 – 2dBi Omni Model: WIT5811 Advanced Compliance Solutions FCC ID: HSW-5811M 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 Figure 4: Cirronet A-7030-0492 – 14dBi Patch Antenna