Two-Way RF Transceiver Module
Crestron
CWDHR
2
Two-Way RF Transceiver Module: CWDHR Operations
Guide - DOC. 7657A
Specifications
Specifications for the CWDHR are listed in the following table.
CWDHR Specifications
SPECIFICATIONS DETAILS
Power Requirements
Four (4) disposable 1.5 V “AAA”
alkaline batteries
Operating Frequency
2400 MHz to 2483.5 MHz
(802.15.4 compliant)
Operating Ranges*
Minimum
Distance
3 feet
Maximum Distance Indoors
(without repeater device)
550 feet
Available Channels
16 (numbered 11 through 26 per
802.15.4)
Serial Communications
SPI, 3.0 Vdc Nominal
Antenna
Gain
2.5 dBi max. peak
Type
Ceramic chip antenna
Frequency
2.4 GHz to 2.5 GHz
Dimensions (PA07414)
Height
1.850 in
Width
0.303 in
Depth
7.248 in
Dimensions (PA07424)
Height
1.850 in
Width
0.303 in
Depth
5.967 in
* The location and orientation of the module are important factors in 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.