User's Manual

Two-Way RF Transceiver Module Crestron CWD6671
Specifications
The table below is a summary of specifications for the CWD6671.
Specifications of the CWD6671
SPECIFICATION DETAILS
Power Requirements 0.22 Watts (3.3VDC @ 0.67A)
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 3.8 mW
Serial Communications SPI, 3.3V Nominal
Antenna Connector SMA Reverse Polarity Female Connector
with ¼-36 UNS2B Screw
Dimensions Width: 1.35 in (3.43 cm)
Height: 2.4 in (6.10 cm)
Depth: 0.75 in (1.91 cm)
1. The location of the module and the orientation of the antenna 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 SMA reverse polarity female antenna port is located at edge of the
circuit board for attaching a dipole antenna while a 16-pin header is for the
application-specific installation.
Physical View of CWD6671
2 • Two-Way RF Transceiver Module: CWD6671 Operations Guide - DOC. 6834