EROCWD6922Two-Way RF Transceiver Module

Crestron CWD6922 Two-Way RF Transceiver Module Operations Guide This document was prepared and written by the Technical Documentation department at: Crestron Electronics, Inc. 15 Volvo Drive Rockleigh, NJ 07647 1-888-CRESTRON Regulatory Compliance Federal Communications Commission (FCC) Compliance Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following 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. CAUTION: Changes or modifications not expressly approved by the manufacturer responsible for compliance could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more if the following measures: • Reorient or relocate the receiving antenna • Increase the separation between the equipment and receiver • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected • Consult the dealer or an experienced radio/TV technician for help Industry Canada (IC) Compliance Statement Operation is subject ot 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. To satisfy RF exposure requirements, this device and its antenna must operate with a separation distance of at least 20 centimeters from all persons and must not be colocated or operating in conjunction with any other antenna or transmitter. All brand names, product names and trademarks are the property of their respective owners. ©2010 Crestron Electronics, Inc. Crestron CWD6922 Two-Way RF Transceiver Module Operations Guide - DOC. Contents • i Contents Two-Way RF Transceiver Module: CWD6922 ............................................. 1 Functions and Features ......................................................................................................... 1 Specifications ....................................................................................................................... 2 Physical Description ............................................................................................................. 2 Setup.................................................................................................................................... 4 Labeling ............................................................................................................................... 4 Documentation ..................................................................................................................... 4 Crestron CWD6922 Two-Way RF Transceiver Module Operations Guide - DOC. Two-Way RF Transceiver Module: CWD6922 • 1 • 2.4 GHz frequency band, IEEE 802.15.4 specification • Range from 3 feet to 100 ft. • Operates on one of sixteen available channels to establish optimal signal quality Two-Way RF Transceiver Module: CWD6922 Functions and Features The CWD6922 (hereafter referred to as “module”) is a two-way radio frequency (RF) module that utilizes the 2.4 GHz frequency band to communicate with other devices. The module operates according to the IEEE 802.15.4 specification and can be configured to minimize the possibility of interference with other devices. The module receives RF signals from one or more Crestron devices and can transmit these signals over the air for further processing (depending on the application). Functional Summary Two-Way RF Transceiver Module Crestron CWD6922 2 • Two-Way RF Transceiver Module: CWD6922 Operations Guide - DOC. Specifications The table below is a summary of specifications for the CWD6922. Specifications of the CWD6922 SPECIFICATION DETAILS Power Requirements 0. 825 Watts (5VDC @ 0.165A) Operating Frequency 2400 MHz to 2483.5 MHz (802.15.4 compliant) Operating Ranges¹ Minimum Distance Maximum Distance Indoors (without repeater device) 3 ft 100 ft Available Channels 16 (numbered 11 through 26 per 802.15.4) Antenna Chip Dimensions Width: 1.88 in (0.477 cm) Height: 0.82 in (0.208 cm) Depth: 0.100 in (0.254 cm) 1. The location and orientation of the module are important factors in the RF performance. With the unit located outside of any metal enclosures, the antenna is adjusted to achieve the best range. The range is dependent on its placement and the building in which it is used. The construction of the building, obstructions, and RF interference from other devices are factors determining the effective range of the unit. To prevent unit-to-unit RF interference, multiple modules operating at the same frequencies should not be installed within 3-5 feet of each other. Physical Description The module, shown below, consists of various components attached to a printed circuit board. Physical View of CWD6922 Crestron CWD6922 Two-Way RF Transceiver Module Operations Guide - DOC. Two-Way RF Transceiver Module: CWD6922 • 3 CWD6922 Detail Views Power/I-O An edge connector provides power to the module as well as serial communications between the module and wired devices. Refer to the following table for pin assignments of the module interface connector. Power/I-O Pinout Signals Pin # Signal Pin # Signal Pin # …

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Crestron Electronics, Inc. 15 Volvo Drive Rockleigh, NJ 07647 Tel: 800.237.2041/ 201.767.3400 Fax: 201.767.7576 www.crestron.com November 22, 2010 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality FCC ID: EROCWD6922 To Whom It May Concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR §§ 0.457, 0.459), we are requesting the Commission to permanently withhold the following attachments as confidential document from public disclosure. Schematic Diagram Block Diagram Theory of Operation Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards Crestron Electronics Inc. Grace Lin Sr. Compliance Engineer Email: [email protected] Telephone: 201-750-7004 extension 11464

Crestron Electronics, Inc. 15 Volvo Drive Rockleigh, NJ 07647 Tel: 800.237.2041/ 201.767.3400 Fax: 201.767.7576 www.crestron.com Transmitter Modular Approval Attestation November 24, 2010 Subject: FCC ID: EROCWD6922, IC: 5683C-CWD6922 To Whom It May Concern: The following attestation addresses the requirements to support modular approval as required by the FCC and IC. Rule Sections Description FCC Part 15 IC RSS-Gen §15.212 (a) §7.1.1 (a) This module is a single modular transmitter consists of a completely self- contained RF transmitter device that is typically incorporated into another product, host, or device. §15.212 (a)(1)(i) §7.1.1 (b) The module has integral RF shielding to isolate it from surrounding equipment and the large environment in general. §15.212 (a)(1)(ii) §7.1.1 (c) All inputs are processed as data by the radio control element. The outside user has no direct control of transmit modulation. §15.212 (a)(1)(iii) §7.1.1 (d) The radio front end contains a linear regulator to regulate device operation over voltage variations and to limit the output power under high voltage conditions. §15.212 (a)(1)(iv) §7.1.1(e) This module is validated with a ceramic chip antenna. The antenna connector is unique in the sense of complying with FCC §15.203, §15.204(b), and §15.204(c). §15.212 (a)(1)(v) §7.1.1 The module was tested in a stand-alone configuration. It complies with the AC line conducted requirements found in FCC §15.207 and IC RSS-Gen Table 2 requirements. §15.212 (a)(1)(vi) §5.2 An ID label is affixed to each unit at the time of manufacture. Information is also clearly presented in the user guide about labeling requirements for the final assembly. §15.212 (a)(1)(vii) §7.1.1 This module is compliant with FCC §15.247 and IC RSS-Gen/RSS-210 rules. Installation and other requirements are presented in the user guide to allow the unit to be correctly installed. §15.212 (a)(1)(viii) §5.5 This module is compliant with the RF exposure requirements of FCC Parts §15.247, §15.1091, §15.1093, and IC RSS-Gen §5.5. Please feel free to contact us with any additional questions or information. Best Regards Crestron Electronics Inc. Grace Lin Sr. Compliance Engineer Email: [email protected] , Telephone: 201-750-7004 extension 11464

FCC ID: EROCWD6922 IC: 5683C-CWD6922 External Photos Page 1 of 1 External Photos

FCC ID: EROCWD6922 IC: 5683C-CWD6922 ID Label Location Page 1 of 1 ID Label Location

CWD6922 1555 MODEL: CWD6922 FCC ID: EROCWD6922 IC: 5683C-CWD6922

FCC ID: EROCWD6922 IC: 5683C-CWD6922 Internal Photo Page 1 of 1 Internal Photo

FCC ID: EROCWD6922 IC: 5683C-CWD6922 Page 1 of 1 Maximum Permissive Exposure Performance Criterion: The human RF exposure limit is 1 mW/cm 2 . Evaluation Results: Complies Details: The maximum permissible exposure (MPE) is predicted by using Equation (3) of Section 2 of FCC OET Bulletin 65, Edition 97-01: S = PG/4πR 2 where: S = power density (in appropriate units, e.g. mW/cm 2 ) P = power input to the antenna (in appropriate units, e.g., mW) G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna (appropriate units, e.g., cm) P = 61.24 mW, G = 1.122 (0.5 dBi), R = 20 cm S = 0.0137 mW/cm 2 = 0.137 W/m 2 MPE limit for uncontrolled exposure at prediction frequency: 1 mW/cm 2 Maximum allowable antenna gain: 19.14 dBi Margin of Compliance at 20 cm = 18.64 dB

FCC ID: EROCWD6922 IC: 5683C-CWD6922 Page 1 of 31 Test Report FCC Part 15, Subpart C, Section 15.247 Industry Canada RSS-210, Issue 7 Report Number: CWD6922-Cert Model: CWD6922 FCC ID: EROCWD6922 IC: 5683C-CWD6922 Date: November 24, 2010 Prepared by: Grace Lin Date: Nov. 24, 2010 Grace Lin, Sr. Compliance Engineer Reviewed by: Wayne Owens Date: Nov. 24, 2010 Wayne Owens, Director of Program Management FCC ID: EROCWD6922 IC: 5683C-CWD6922 Page 2 of 31 Table of Contents 1. GENERAL DESCRIPTION ............................................................................................. 3 1.1 PRODUCT DESCRIPTION ................................................................................................ 3 1.2 TEST METHODOLOGY ................................................................................................... 3 1.3 TEST FACILITY ............................................................................................................. 3 1.4 TEST EQUIPMENT ......................................................................................................... 4 1.5 EVALUATION SUMMARY ............................................................................................... 4 2. SYSTEM TEST CONFIGURATION .............................................................................. 5 2.1 JUSTIFICATION ............................................................................................................. 5 2.2 BLOCK DIAGRAM ......................................................................................................... 5 2.3 EUT EXERCISE SOFTWARE AND MODE(S) OF OPERATION .............................................. 5 2.4 CABLES ........................................................................................................................ 5 2.5 SPECIAL ACCESSORIES ................................................................................................. 6 2.6 SUPPORT EQUIPMENT .................................................................................................... 6 2.7 EQUIPMENT MODIFICATIONS ........................................................................................ 6 3. EVALUATION ................................................................................................................. 7 3.1 ANTENNA REQUIREMENTS ............................................................................................ 7 3.2 6 DB BANDWIDTH ........................................................................................................ 8 3.3 99% BANDWIDTH ....................................................................................................... 11 3.4 POWER OUTPUT ......................................................................................................... 13 3.5 BAND EDGE ............................................................................................................... 16 3.6 CONDUCTED SPURIOUS EMISSIONS ............................................................................. 18 3.7 POWER SPECTRAL DENSITY ........................................................................................ 22 3.8 RADIATED SPURIOUS EMISSIONS................................................................................. 25 3.9 RECEIVER RADIATED EMISSIONS ................................................................................ 27 3.10 RECEIVER AC POWER LINE CONDUCTED EMISSIONS ................................................... 30 FCC ID: EROCWD6922 IC: 5683C-CWD6922 Page 3 of 31 1. General Description 1.1 Product Description The equipment under test (EUT) is a Crestron 2.4GHz two-way RF transceiver module, model: CWD6922. 1.2 Test Methodology Measurements were performed according to the following procedures and standards: 1) ANSI C63.4: 2003 2) FCC Procedure, “Measurement of Digital Transmission Systems Operating under Section 15.247”, March 23, 2005 3) Industry Canada RSS-Gen Issue 2 4) Industry Canada RSS-210 Issue 7 5) Industry Canada ICES-003 Issue 4 All measurements were performed in a 3-meter semi-anechoic chamber and the control room. 1.3 Test Facility The 3-meter semi-anechoic chamber used to collect conducted and radiated emission data is located at 22 Link Drive, Rockleigh, New Jersey. This test facility has been placed on file with the FCC, Registration Number: 412871, and Industry Canada, Site Number: 5683C-1. FCC ID: EROCWD6922 IC: 5683C-CWD6922 Page 4 of 31 1.4 Test Equipment Description Model Serial No. Frequency Range Calibration Date R&S EMI Receiver ESU40 100076 20 Hz – 40 GHz Dec. 22, 2009 Teseq Bilog Antenna CBL 6112D 25231 30 MHz – 2 GHz Jan. 28, 2010 ETS-Lindgren Double Ridge Horn Antenna 3117 00047560 1 GHz – 18 GHz Jan. 27, 2010 R&S Preamplifier TS-PR18 100044 30 MHz – 18 GHz Feb. 9, 2010 ETS-Lindgren Standard Gain Horn Antenna 3160-09 00078911 18 GHz – 26.5 GHz Apr. 12, 2010* R&S Preamplifier TS-PR26 100030 18 GHz – 26.5 GHz Feb. 23, 2010 Solar Electronics LISN 9252-50-R-24-N 068546 10 kHz – 50 MHz Feb. 3, 2010 *Mechanical inspection 1.5 Evaluation Summary Rule Section Description/Parameters Results FCC IC §15.203 N/A Antenna Requirement Complies §15.247(a)(2) §A8.2(a) of RSS-210 6 dB Bandwidth, 500 kHz Complies N/A §4.6.1 of RSS-Gen 99% Occupied Bandwidth (for reporting purpose) §15.247(b)(3) §A8.4(4) of RSS-210 Power Output, conducted, 1 Watt (30dBm) Complies §15.247(d) §2.1, §A8.5 of RSS- 210 Band Edge Complies §15.247(d) §A8.5 of RSS-210 Conducted Spurious Emissions, 20 dBc Complies §15.247(e) §A8.2(b) of RSS-210 Power Spectral Density (PSD), 8 dBm in any 3 kHz band. Complies §15.205, §15.209, §15.247(d) §2.2, §2.7, §A8.5 of RSS-210 Radiated Spurious Emissions Complies §15.101(b) §6 of RSS-Gen Receiver Radiated Emission Complies §15.107 §7.2.2 of RSS-Gen Receiver AC Power Line Conducted Emissions Complies Note: The channels selected for test were 11, 18, and 26. FCC ID: EROCWD6922 IC: 5683C-CWD6922 Page 5 of 31 2. System Test Configuration 2.1 J…

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FCC ID: EROCWD6922 IC: 5683C-CWD6922 Test Setup Photos Page 1 of 2 Test Setup Photos Conducted Emission Configuration Photographs Worst-case conducted emission, front view Worst-case conducted emission, side view FCC ID: EROCWD6922 IC: 5683C-CWD6922 Test Setup Photos Page 2 of 2 Test Setup Photos Radiated Emission Configuration Photographs Worst-case radiated emission, front view Worst-case radiated emission, rear view