HSW-910MWireless LAN

Murata Electronics North America

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Application Details

Equipment Class: DTS - Digital Transmission System
Date of Grant: Aug 11, 2004
Application Purpose: Original Equipment
Date of Application: Aug 11, 2004
Equipment Note: Wireless LAN
Frequency Range: 902.00000000 - 928.00000000
Company: Murata Electronics North America
Country: United States

Documents & Files

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Test Setup Photos

Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

Model: WIT910 Advanced Compliance Solutions FCC ID: HSW-910M Frequency Hopping Spread Spectrum Transmitter Modular Approval Certification Test Report FCC ID: HSW-910M ACS Report Number: 04-0132-15C Manufacturer: Cirronet, Inc. Equipment Type: Transceiver Model: WIT910 Manual WIT910 900MHz Spread Spectrum Wireless Industrial Transceiver Integration Guide 5375 Oakbrook Parkway Norcross, Georgia 30093 www.cirronet.com +1 (678) 684-2000 TABLE OF CONTENTS 1. INTRODUCTION.....................................................................................................................1 1.1. Why Spread Spectrum?.....................................................................................................1 1.2. Frequency Hopping vs. Direct Sequence..........................................................................2 2. RADIO OPERATION............................................................................................................... 4 2.1. Synchronization and Registration.....................................................................................4 2.2. Data Transmission............................................................................................................5 2.2.1. Point-to-Point........................................................................................................... 5 2.2.2. Point-to-Multipoint...................................................................................................6 2.2.3. Handle Assignment.................................................................................................6 2.2.4. TDMA Operation......................................................................................................7 2.2.5. Full Duplex Communication....................................................................................9 2.2.6. Error-free Packet Transmission Using ARQ............................................................9 2.3. Modes of Operation........................................................................................................ 10 2.3.1. Control and Data Modes.......................................................................................10 2.3.2. Sleep Mode...........................................................................................................10 2.3.3. Low Power Mode and Duty Cycling......................................................................11 2.3.4. RF Flow Control Mode...........................................................................................11 3. PROTOCOL MODES.............................................................................................................12 3.1.1. Data Packet...........................................................................................................14 3.1.3. Connect Packet.....................................................................................................15 3.1.4. Disconnect Packet (base only, receive only)........................................................15 4. MODEM INTERFACE............................................................................................................16 4.1. Interfacing to 5-volt Systems...........................................................................................17 4.2. Evaluation Unit and OEM Module Differences................................................................17 4.3. Three Wire Operation.....................................................................................................17 4.4. Power-On Reset Requirements......................................................................................18 5. MODEM COMMANDS...........................................................................................................19 5.1. Serial Commands........................................................................................................... 19 5.2. Network Commands .......................................................................................................21 5.3. Protocol Commands .......................................................................................................23 5.4. Status Commands..........................................................................................................26 5.5. Memory Commands........................................................................................................27 5.6. Modem Command Summary..........................................................................................28 6. WIT910 DEVELOPER’S KIT..................................................................................................29 6.1. WinCOM.........................................................................................................................30 6.1.1 WinCOM Tools........................................................................................................32 6.2. Demonstration Procedure...............................................................................................34 6.3. Troubleshooting..............................................................................................................35 7. APPENDICES........................................................................................................................37 7.1. Technical Specifications.................................................................................................37 7.1.1. Ordering Information.............................................................................................37 7.1.2. Power Specifications.............................................................................................37 7.1.3. RF Specifications..................................................................................................37 7.1.4. Mechanical Specifications.....................................................................................37 7.2. Serial Connector Pinouts...…

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Cover Letter(s)

HSW-910M 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 WIT910M under FCC ID: HSW-910M in accordance with FCC Regulations 0.459. The confidentiality request applies to the schematics, parts list, theory of operation and block diagrams contained in this filing. The WIT910M 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: June 8, 2004 Sr. Compliance Engineer Cirronet Inc. 5375 Oakbrook Parkway Norcross, GA 30093 678 684 2000 ext. 138 [email protected]

External Photos

ID Label/Location Info

Internal Photos

RF Exposure Info

ACS Report: 04-0132-15C247 Page 1 FCC Part 15.247 Certification Test Report Frequency Hopping Spread Spectrum Transceiver Modular Approval FCC ID: HSW-910M FCC Rule Part: 15.247 ACS Report Number: 04-0132-15C Manufacturer: Cirronet, Inc. Equipment Type: Transceiver Model: WIT910 RF Exposure Information Model: WIT910 Advanced Compliance Solutions FCC ID: HSW-910M ACS Report: 04-0132-15C247 Page 2 General Information: Applicant: Cirronet, Inc. ACS Project: 04-0132 FCC ID: HSW-910M Device Category: Mobile Environment: General Population/Uncontrolled Exposure Technical Information: Antenna Type: Yagi Antenna Gain: 8.5dB Transmitter Conducted Power: 27.567dBm Maximum System EIRP: 36.07dBm Operating Configuration: Module to be installed in Mobile or Fixed mount host devices only. Exposure Conditions: Greater than 23 centimeters MPE Calculation The minimum separation distance is calculated as follows: E(V/m) = xPxG30 Power Density: P d =(mW/cm 2 ) = d MPE Distance MPE Calculator for Mobile Equipment Limits for General Population/Uncontrolled Exposure* Transmit Freq. (MHz) Radio Power (dBm) Radio Power (W) Antenna Gain (dBi) Antenna Gain (mW eq.) MPE Distance (cm) 914.28 27.56 0.57108 8.5 7.08 22.98 Installation Guidelines The installation manual contains the following text advising how to install the equipment to maintain compliance with the FCC RF exposure requirements: “RF Exposure (Intentional Radiators Only) In accordance with FCC requirements of human exposure to radiofrequency fields, the radiating element shall be installed such that a minimum separation distance of (23cm).” Conclusion This device complies with the MPE requirements by providing adequate separation between the device, any radiating structure and the general population. E 2 3770

Test Report

5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 FCC Part 15.247 Subpart C Frequency Hopping Spread Spectrum Transmitter Modular Approval Certification Test Report Manufacturer: Cirronet Inc. Model: WIT910 Rules Section: 15.247 Test Begin Date: April 28, 2004 Test End Date: March 26, 2004 Report Issue Date: July 5, 2004 ACS Report Number: 04-0132-15C Test Result: PASS Prepared by: Hernando Orozco Compliance Engineer 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598 Table of Contents 1.0 General 3 1.1 Introduction 3 1.2 Product Description 3 1.2.1 General 3 1.2.2 Intended Use 3 1.2.3 Technical Specifications 3 1.2.4 Antennas 3 2.0 Location of Test Facility 4 2.1 Description of Test Facility 4 2.1.1 Open Area Test Site 4 2.1.2 Conducted Emissions Test Site 6 3.0 Applicable Standards and References 7 4.0 List of Test Equipment 7 5.0 Support Equipment 8 6.0 EUT Setup Block Diagram 8 7.0 Summary of Tests 9 7.1 Section 15.203 - Antenna Requirement 9 7.2 Section 15.207 - Power Line Conducted Emissions 9 7.3 Section 15.209 - Radiated Emissions(Unintentional Radiation) 9 7.4 Section 15.247(b) – Peak Output Power 10 7.5 Section 15.247(a) – Channel Usage 11 7.5.1 Section 15.247(a)(1) - Adjacent Channel Spacing 11 7.5.2 Section 15.247(a)(1) – Number of Hopping Channels 12 7.5.3 Section 15.247(a)(1) – Channel Dwell Time 12 7.5.4 Section 15.247(a)(1)(i) – 20dB Bandwidth 13 7.6 Section 15.247(c) - Spurious Emissions 14 7.6.1 RF Conducted Spurious Emissions 14 7.6.1.1 Test Results 14 7.6.2 Radiated Spurious Emissions (Restricted Bands) 14 7.6.2.1 Duty Cycle Correction Factor 15 7.6.2.2 Test Results 16 7.6.2.3 Sample Calculations 17 8.0 CONCLUSION 18 Additional Exhibits Included In Filing Data Plots A – Yagi Antenna Spurious Data Plots B – Omni Antenna Spurious Data Plots C- Conducted Spurious Internal Photographs External Photographs Test Setup Photographs Product Labeling RF Exposure – MPE Calculations BOM Installation/Users Guide Theory of Operation and System Block Diagram Schematics Model: WIT910 FCC ID: HSW-910M ACS Report: 04-0132-15C Advanced Compliance Solutions Page 3 1.0 GENERAL 1.1 Purpose The purpose of this report is to demonstrate compliance with Part 15, Subpart C of the FCC’s Code of Federal Regulations. 1.2 Product Description 1.2.1 General The Equipment Under Test (EUT) is the Model WIT910. The WIT910 Radio transceiver provides reliable wireless connectivity for either point-to-point or multipoint applications. Frequency hopping spread spectrum technology ensures maximum resistance to noise and multi-path fading and robustness in the presence of interfering signals, while operation in the 900 MHz ISM band allows license-free use and worldwide compliance. Standard communication rates between the WIT910 and the host are supported between 1200pbs and 57.6bps. Non-standard rates are supported as well. An on-board buffer and an error-correcting over-the-air protocol provide smooth data flow and simplify the task of integration with existing applications. Detailed photographs of the EUT are filed separately with this filing. 1.2.2 Intended Use The WIT910 is a Wireless Data modem that provides connectivity for either point-to-point or multipoint applications. 1.2.3 Technical Specifications Table 1.2.3-1: Specifications Frequency Band 902-928 Number of Channels 54 Channel Bandwidth 385.5kHz Nominal (20dB Bandwidth) Channel Spacing 0.46083MHz Output power 27dBm nominal Antenna Type Listed in section 1.2.4 Antenna Connector Type Listed in section 1.2.4 1.2.4 Antennas Testing was done using the Cushcraft Yagi PC906RTN36 and Cushcraft Omni S8963BRTN36 antennas. Manufacturer Model Type Connector Gain Cushcraft S8963BRTN36 Omni Male REV TNC 5 dBi Cushcraft PC904RTN36 YAGI Male REV TNC 6 dBi Cushcraft PC906RTN36 YAGI Male REV TNC 8.5 dBi ACE Antenna ACE-915NF Omni Male REV TNC 2 dBi Model: WIT910 FCC ID: HSW-910M ACS Report: 04-0132-15C Advanced Compliance Solutions Page 4 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 VCCI OATS Registration Number R-1526 VCCI Conducted Emissions Site Registration Number: C-1608 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 p…

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Test Report

Contact Information

Applicant

Mark Tucker(Director of Hardware Engineering)

[email protected]678 684-2009Fax: 678 684-2001

Test Firm

Advanced Compliance Solutions, Inc.Douglas Massey

[email protected]770-831-8048Fax: 770-831-8598

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	902 MHz - 928 MHz	571.00 mW

Confidentiality

Long Term

Grant Notes

Power output is conducted at the antenna terminal. This is an OEM module approved for use in products operating as a mobile transmitting device with respect to 2.1091. MPE compliance was demonstrated for typical antenna(s) as shown in the filing. Final antenna installation and operating configurations of this transmitter including antenna gain and cable loss must not exceed the EIRP of the configuration used for calculating MPE. The module must transmit with a duty factor not exceeding 12%, controlled by firmware and software. Products operating with this module are required to provide a minimum separation distance of at least 23 cm between the antenna and all persons during normal operation. Grantee must coordinate with OEM integrators to ensure the end-users of products operating with this module are provided with operating instructions to satisfy RF exposure requirements. Separate approval is required for all other operating configurations, including portable configurations with respect to 2.1093 and different antenna configurations.