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EROCWD6790Two-Way RF Transceiver Module

Crestron Electronics Inc
Two-Way RF Transceiver Module - FCC ID EROCWD6790 - Crestron Electronics Inc
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Application Details

Equipment Class
DTS - Digital Transmission System
Date of Grant
Mar 09, 2010
Application Purpose
Original Equipment
Date of Application
Mar 09, 2010
Equipment Note
Two-Way RF Transceiver Module
Frequency Range
2405.00000000 - 2480.00000000
Company
Crestron Electronics Inc
Country
United States

Documents & Files

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Users Manual

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Attestation Statements

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Cover Letter(s)

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External Photos

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ID Label/Location Info

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Internal Photos

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RF Exposure Info

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Test Report

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Test Setup Photos

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Document Text

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

Users Manual

Crestron CWD6790 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 CWD6790 Two-Way RF Transceiver Module Operations Guide - DOC. 7019A Contents • i Contents Two-Way RF Transceiver Module: CWD6790 ..............................................1 Functions and Features .............................................................................................................. 1 Specifications............................................................................................................................. 2 Physical Description .................................................................................................................. 2 Setup .......................................................................................................................................... 4 Labeling ..................................................................................................................................... 4 Documentation........................................................................................................................... 4 Crestron CWD6790 Two-Way RF Transceiver Module Operations Guide - DOC. 7019A Two-Way RF Transceiver Module: CWD6790 • 1 • 2.4 GHz frequency band, IEEE 802.15.4 specification • Range from 3 feet to 50 ft. • Operates on one of sixteen available channels to establish optimal signal quality Two-Way RF Transceiver Module: CWD6790 Functions and Features The CWD6790 (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 CWD6790 2 • Two-Way RF Transceiver Module: CWD6790 Operations Guide - DOC. 7019A Specifications The table below is a summary of specifications for the CWD6790. Specifications of the CWD6790 SPECIFICATION DETAILS Power Requirements 0.58 Watts (5VDC @ 0.115A) Operating Frequency 2400 MHz to 2483.5 MHz (802.15.4 compliant) Operating Ranges¹ Minimum Distance Maximum Distance Indoors (without repeater device) 3 ft 50 ft Available Channels 16 (numbered 11 through 26 per 802.15.4) RF Output Power 1.7 mW Dimensions Width: 1.64 in (4.15 cm) Height: 2.35 in (5.98 cm) Depth: 0.66 in (1.68 cm) Antenna Gain: 2.66 dBi max. Type: 5/8-wavelength, Inverted-F, Center Frequency 2.45 GHz Construction: Post and strip 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. A set of spring loaded pogo-pins connect to the antenna that is mounted in the plastic button frame. A 10-pin header is provided for the application-specific installation. There are six (6) different build options for this module. The options specify the numb…

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External Photos

FCC ID: EROCWD6790 IC: 5683C-CWD6790 External Photos Page 1 of 2 External Photos FCC ID: EROCWD6790 IC: 5683C-CWD6790 External Photos Page 2 of 2 External Photos

ID Label/Location Info

FCC ID: EROCWD6790 IC: 5683C-CWD6790 ID Label Location Page 1 of 1 ID Label Location

ID Label/Location Info

REVISIONS NAME REV DESCRIPTION DATE APPROVED J.S. A ORIGINAL ISSUE PER EWO1414 6/3/09 22 LINK DRIVE, ROCKLEIGH, N.J. 07647 (201) 750-7004 FAX (201) 767-5772 NAME DATE DRAWN BY CHECKED FINISHED GDS DESIGNED BY SIZE PRINT NUMBER REV LABEL, FCC I.D., CLW SERIES APX: 1.00” X .50” B 271835 UNLESS OTHERWISE SPECIFIED:ALL DIMENSIONS ARE IN INCHESTOLERANCES ARE:FRACTIONS 1/64 ANGLES ½ DECIMALS .XX .01 .XXX .005 ±± ° ±± THIS DRAWING IS THE EXCLUSIVE PROPERTY OF CRESTRON ELECTRONICS, INC. DISCLOSURE OR REPRODUCTION IN WHOLE OR IN PART, WITHOUT PRIOR WRITTEN PERMISSION, IS PROHIBITED EXCEPT FOR THE MANUFACTURE OF ARTICLES FOR CRESTRON. USED ON SORT NAME 1:1 APPROVED WF 6/3/09 DEBURR & BREAK ALL SHARP EDGES J.S. 6/3/09 J.S. 6/3/09 6502938 CLW-DIMEX-E-W-S SCALE: 271835-B.CDR FILE: SHEET 1 OF 1 A ALL PARTS & PROCESSES MUST BE COMPLIANT RoHS NOTES:1. MATERIAL: UL/CSA APPROVED GLOSS COATEDSILVER POLYESTER, .002 THK WITH PERMANENTACRYLIC ADHESIVE.2. PRINT: TEXT & GRAPHICS - BLACK.3. THIS DRAWING IS FOR REFERENCE USE ONLY. USECOMPUTER FILE 24395-B.FMT FOR THE ACTUAL PRODUCTIONOF THIS LABEL. JH B ECN8885 1/11/10 MODEL:CWD6790 FCC ID: EROCWD6790 IC: 5638A-CWD6790 SEE MANUAL 1.000 .500 R .063

Internal Photos

FCC ID: EROCWD6790 IC: 5683C-CWD6790 Internal Photo Page 1 of 1 Internal Photo

RF Exposure Info

FCC ID: EROCWD6790 IC: 5683C-CWD6790 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 = 1.726 mW, G = 1.845 (2.66 dBi), R = 20 cm S = 0.0006 mW/cm 2 = 0.0063 W/m 2 MPE limit for uncontrolled exposure at prediction frequency: 1 mW/cm 2 Maximum allowable antenna gain: 34.64 dBi Margin of Compliance at 20 cm = 31.98 dB

Test Report

FCC ID: EROCWD6790 IC: 5683C-CWD6790 Page 1 of 33 Test Report FCC Part 15, Subpart C, Section 15.247 Industry Canada RSS-210, Issue 7 Report Number: CWD6790-Cert Model: CWD6790 FCC ID: EROCWD6790 IC: 5683C-CWD6790 Date: March 3, 2010 Prepared by: Grace Lin Date: Mar. 3, 2010 Grace Lin, Sr. Compliance Engineer Reviewed by: Wayne Owens Date: Mar. 3, 2010 Wayne Owens, Director of Program Management FCC ID: EROCWD6790 IC: 5683C-CWD6790 Page 2 of 33 Table of Contents 1. GENERAL DESCRIPTION ................................................................................................ 3 1.1 P RODUCT DESCRIPTION................................................................................................... 3 1.2 TEST METHODOLOGY...................................................................................................... 3 1.3 TEST FACILITY................................................................................................................. 3 1.4 TEST EQUIPMENT............................................................................................................. 4 1.5 E VALUATION SUMMARY.................................................................................................. 4 2. SYSTEM TEST CONFIGURATION ................................................................................. 5 2.1 J USTIFICATION................................................................................................................. 5 2.2 BLOCK DIAGRAM............................................................................................................. 5 2.3 EUT EXERCISE SOFTWARE AND MODE(S) OF OPERATION.............................................. 5 2.4 C ABLES............................................................................................................................ 5 2.5 S PECIAL 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 P OWER SPECTRAL DENSITY........................................................................................... 22 3.8 RADIATED SPURIOUS EMISSIONS................................................................................... 25 3.9 RECEIVER RADIATED EMISSIONS................................................................................... 30 3.10 RECEIVER AC POWER LINE CONDUCTED EMISSIONS.................................................... 32 FCC ID: EROCWD6790 IC: 5683C-CWD6790 Page 3 of 33 1. General Description 1.1 Product Description The equipment under test (EUT) is a Crestron 2.4GHz two-way RF transceiver module, model: CWD6790. There are six (6) different build options for this module. The options specify the number of installed push buttons/switches, the number and color of installed LEDs. All other portions of the module are identical. The test sample is the first option with all switches and LEDs installed. 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: EROCWD6790 IC: 5683C-CWD6790 Page 4 of 33 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. 3, 2009 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 1.5 Evaluation Summary Rule Section FCC IC Description/Parameters Results §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…

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Test Setup Photos

FCC ID: EROCWD6790 IC: 5683C-CWD6790 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: EROCWD6790 IC: 5683C-CWD6790 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

Contact Information

Applicant

Chirag Patel(Lead Compliance Engineer)
[email protected]201-750-7004Fax: 201-767-5771

Test Firm

Crestron Electronics, Inc.Mairaj Hussain
[email protected]201-750-7004

Technical Specifications

#Rule PartsFrequency RangePower Output
115C2.40 GHz - 2.48 GHz1.73 mW
Modular Type
Single Modular Approval
Confidentiality
Long Term
Grant Notes
Output power listed is conducted. The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter except according to multiple transmitter approval procedures. Compliance of this device in all final host configurations is the responsibility of the Grantee. End-users must be provided with any specific information required to satisfy RF exposure compliance for the final host device.

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