Crestron Electronics CWD7219 Two-Way RF Transceiver Module User Manual Operations Guide

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Crestron CWD7219
Two-Way RF Transceiver Module
Operations Guide
Regulatory Compliance
Federal Communications Commission (FCC) Compliance Statement
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 digital 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 of 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
This device complies with Industry Canada license-exempt RSS standard(s). 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.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or
lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the
antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than
that necessary for successful communication.
This radio transmitter, IC: 5683C-CWD7219, has been approved by Industry Canada to operate with the antenna types
listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly
prohibited for use with this device.
Antenna Type: Dipole, Maximum permissible antenna gain: 2.5 dBi, Impedance: 50 Ohms
Industrie Canada (IC) Déclaration de conformité
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.
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un
type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques
de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que
la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une
communication satisfaisante.
Le présent émetteur radio , IC: 5683C-CWD7219, a été approuvé par Industrie Canada pour fonctionner avec les types
d'antenne énumérés ci-dessous et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne.
Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement
interdits pour l'exploitation de l'émetteur.
Type d'antenne: Dipole,
Gain admissible maximal: 2.5 dBi, Impédance: 50 Ohms
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 collocated or operating in conjunction with any other antenna or
transmitter.
This document was written by the Technical Publications department at Crestron.
©2013 Crestron Electronics, Inc.
Crestron CWD7219
Two-Way RF Transceiver Module
Contents
Two-Way RF Transceiver Module: CWD7219 ..............................................1
Functions and Features .............................................................................................................. 1
Specifications ............................................................................................................................. 2
Physical Description .................................................................................................................. 3
Ports............................................................................................................................. 3
Power/I-O .................................................................................................................... 4
Labeling Requirements .............................................................................................................. 4
Documentation ........................................................................................................................... 4
Operations Guide - DOC. 7510A
Contents  i
Crestron CWD7219
Two-Way RF Transceiver Module
Two-Way RF Transceiver Module:
CWD7219
Functions and Features
The CWD7219 (hereafter referred to as “module”) with a dipole antenna, 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 or over a cable run for further processing (depending on the application).
Functional Summary



Operations Guide - DOC. 7510A
2.4 GHz frequency band, IEEE 802.15.4 specification
Range from 3 feet to 550 ft.
Operates on one of sixteen available channels to establish optimal
signal quality
Two-Way RF Transceiver Module: CWD7219  1
Two-Way RF Transceiver Module
Crestron CWD7219
Specifications
The table below is a summary of specifications for the CWD7219.
Specifications of the CWD7219
SPECIFICATION
DETAILS
Power Requirements
1.35 W (5.0 Vdc @ 0.27 A)
Operating Frequency
2400 MHz to 2483.5 MHz (802.15.4 compliant)
Operating Ranges*
Minimum Distance
3 ft
Maximum Distance Indoors
(without repeater device)
550 ft
Available Channels
16 (numbered 11 through 26 per 802.15.4)
Antenna
Gain:
2.0±0.5 dBi max.
Type:
Sleeve Dipole Antenna
Frequency:
2.4 GHz to 2.5 GHz
Connector Type: SMA Plug Reverse Polarity
Connector with ¼-36
UNS2B Screw
Serial Communications
SPI, 3.0V Nominal
Dimensions
Width:
1.30 in (3.30 cm)
Height: 1.97 in (5.00 cm)
Depth:
0.26 in (0.66 cm)
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.
2  Two-Way RF Transceiver Module: CWD7219
Operations Guide - DOC. 7510A
Crestron CWD7219
Two-Way RF Transceiver Module
Physical Description
The module, shown after this paragraph, consists of various components attached to a printed circuit
board. A SMA reverse polarity female antenna port is located at the edge of the circuit board for
attaching a dipole antenna. An 11-pin header double row is for the application-specific installation.
Refer to the diagrams and descriptions that follow.
Physical View of CWD7219
Ports
The module contains an 11-pin double row. Refer to the diagram that follows.
CWD7219 Power / I-O Pin Configuration
21
19
17
15
13
11
10
P2
22
20
Operations Guide - DOC. 7510A
18
16
14
12
Two-Way RF Transceiver Module: CWD7219  3
Two-Way RF Transceiver Module
Crestron CWD7219
Power/I-O
The 11-pin header double row provides power to the module as well as the 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
AGND
JTCK
RESET_N
WAKE_N
JTRS_N
HOST_INT_N/PB2_RXD
JTDI
PB1/TXD
JTDO
10
PA6
11
JTMS
12
+VIN
13
PA7
14
PA5/PT1_DATA
15
PA4/PT1_EN
16
PB3
17
SPI_MISO
18
EE_CS_N
19
SPI_SSO_N
20
SPI_MOSI
21
SPI_CLK
22
AGND
Labeling Requirements
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: EROCWD7219” or “Contains FCC ID: EROCWD7219.” 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: CWD7219
Operations Guide - DOC. 7510A
Crestron CWD7219
Two-Way RF Transceiver Module
This page is intentionally left blank.
Operations Guide - DOC. 7510A
Two-Way RF Transceiver Module: CWD7219  5
Crestron Electronics, Inc.
15 Volvo Drive Rockleigh, NJ 07647
Tel: 888.CRESTRON
Fax: 201.767.7576
www.crestron.com
Operations Guide – DOC. 7510A
02.13
Specifications subject to
change without notice.

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