Crestron Electronics CWD7550 Two-Way RF Transceiver Module User Manual Operations Guide DOC 5811A

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Document ID	3321833
Application ID	+k5ahVUEBrnvild4CH1D2Q==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	39.11kB (488881 bits)
Date Submitted	2017-03-17 00:00:00
Date Available	2017-03-17 00:00:00
Creation Date	2017-03-15 08:12:17
Producing Software	Microsoft® Office Word 2007
Document Lastmod	2017-03-15 08:12:17
Document Title	Operations Guide - DOC. 5811A
Document Creator	Microsoft® Office Word 2007
Document Author:	crestron

Crestron CWD7550
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 to 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.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence.
L’exploitation est autorisée aux deux conditions suivantes :
1. l’appareil ne doit pas produire de brouillage, et
2. l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
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.
Crestron CWD7550
Two-Way RF Transceiver Module
Operations Guide
All brand names, product names and trademarks are the property of their respective owners.
©2010 Crestron Electronics, Inc.
Crestron CWD7550
Two-Way RF Transceiver Module
Contents
Two-Way RF Transceiver Module: CWD7550 ..............................................1
Functions and Features .............................................................................................................. 1
Specifications ............................................................................................................................. 2
Physical Description .................................................................................................................. 2
Setup .......................................................................................................................................... 4
Labeling ..................................................................................................................................... 4
Documentation ........................................................................................................................... 4
Operations Guide - DOC. 7019A
Contents  i
Crestron CWD7550
Two-Way RF Transceiver Module
Two-Way RF Transceiver Module:
CWD7550
Functions and Features
The CWD7550 (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



Operations Guide - DOC. 7019A
2.4 GHz frequency band, IEEE 802.15.4 specification
Range from 3 feet to 500 ft.
Operates on one of sixteen available channels to establish optimal
signal quality
Two-Way RF Transceiver Module: CWD7550  1
Two-Way RF Transceiver Module
Crestron CWD7550
Specifications
The table below is a summary of specifications for the CWD7550.
Specifications of the CWD7550
SPECIFICATION
DETAILS
Power Requirements
1.34 Watts (5VDC @ 0.26A)
Operating Frequency
2400 MHz to 2483.5 MHz (802.15.4 compliant)
Operating Ranges¹
Minimum Distance
3 ft
Maximum Distance Indoors
(without repeater device)
50 ft
Available Channels
16 (numbered 11 through 26 per 802.15.4)
RF Output Power
100mW
Dimensions
Width:
1.64 in (4.15 cm)
Height: 2.35 in (5.98 cm)
Depth:
Antenna
0.66 in (1.68 cm)
Antenova: Mica 2.4GHz SMD Antenna (A5645)
Frequency Range: 2.4-2.5GHz
Gain:
1.9 dBi max.
Type:
The antenna requires a groundplane,
VSWR: 1.8:1 (max @ 1.8 dBi)
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.
There are three (2) different build options for this module. The options specify the number of installed
push buttons/switches, the number and color of installed LEDs.
Physical View of CWD7550 (with 5 switches and 7 LEDs installed)
2  Two-Way RF Transceiver Module: CWD7550
Operations Guide - DOC. 7019A
Crestron CWD7550
Two-Way RF Transceiver Module
CWD7550 Detail Views
FRONT
SIDE
BACK
Antenna
PCB with Radio
10
10-pin Mating
Connector
Ports
The module contains a 10-pin connector. Refer to the diagrams and descriptions that follow.
Power/I-O
The 10 pin connector provides power to the module as well as communications between the module
and wired devices. Refer to the following table for pin assignments of the module interface connector.
10
NOTE: Pin 1 provides power to the circuit card.
Power/I-O Pinout Signals
Pin #
Operations Guide - DOC. 7019A
Signal
Pin #
Signal
+5V
PWM
RELAY_ON
DISABLE_SINK
DISABLE_SOURCE
3.0V
RELAY_OFF
GND
ANALOG_FB
10
GND
Two-Way RF Transceiver Module: CWD7550  3
Two-Way RF Transceiver Module
Crestron CWD7550
Setup
Hardware Hookup
Refer to the hookup diagram below, which shows the connections made to the module. Complete the
connections in any order.
NOTE: To prevent unit-to-unit RF interference, multiple modules operating at the same frequencies
should not be installed within three to five feet of each other.
Host
Control
+5V
Labeling
If the FCC identification number is not visible when the module is installed inside another device, then
the outside of the device into which the module is installed must also display a label referring to the
enclosed module. This exterior label can use wording such as the following: “Contains Transmitter
Module FCC ID: EROCWD7550” or “Contains FCC ID: EROCWD7550.” Any similar wording that
expresses the same meaning may be used.
Documentation
The OEM integrator has to be aware not to provide information to the end user regarding how to install
or remove this RF module in the users manual of the end product.
The users manual for OEM integrators must include the following information in a prominent location
“IMPORTANT NOTE: To comply with FCC RF exposure compliance
requirements, the antenna used for this transmitter must be installed to provide a
separation distance of at least 20 cm from all persons and must not be co-located
or operating in conjunction with any other antenna or transmitter.”
4  Two-Way RF Transceiver Module: CWD7550
Operations Guide - DOC. 7019A
Crestron CWD7550
Two-Way RF Transceiver Module
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Operations Guide - DOC. 7019A
Two-Way RF Transceiver Module: CWD7550  5
Crestron Electronics, Inc.
15 Volvo Drive Rockleigh, NJ 07647
Tel: 888.CRESTRON
Fax: 201.767.7576
www.crestron.com
Operations Guide – DOC. 7019A
03.10
Specifications subject to
change without notice.

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Title                           : Operations Guide - DOC. 5811A
Author                          : crestron
Creator                         : Microsoft® Office Word 2007
Create Date                     : 2017:03:15 08:12:17-04:00
Modify Date                     : 2017:03:15 08:12:17-04:00
Producer                        : Microsoft® Office Word 2007

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