User Manual

Two-Way RF Transceiver Module Crestron CWD6894
2  Two-Way RF Transceiver Module: CWD6894 Operations Guide - DOC. 7180A
Specifications
The table below is a summary of specifications for the CWD6894.
Specifications of the CWD6894-1 & -2
SPECIFICATION DETAILS
Operating Frequency 2400 MHz to 2483.5 MHz (802.15.4 compliant)
Operating Ranges*
Minimum Distance
Maximum Distance Outdoors
(without repeater device)
3 ft
550 ft
Available Channels 16 (numbered 11 through 26 per 802.15.4)
Power Requirements 0.66 Watts (3.3VDC @ 0.20A)
Dimensions (CWD6894-1) Width: 1.000 in (2.54 cm)
Height: 1.075 in (2.73 cm)
Depth: 0.313 in (0.8 cm)
Dimensions (CWD6894-2) Width: 1.000 in (2.54 cm)
Height: 1.075 in (2.73 cm)
Depth: 0.217 in (0.55 cm)
Antenna (CWD6894-1) Gain: 2.0±0.5 dBi max.
Type: Sleeve Dipole Antenna
Frequency: 2.4GHz to 2.5 GHz
Connector Type: SMA Plug Reverse Polarity
Connector with ¼-36 UNS2B Screw
Antenna (CWD6894-2) Max. Gain: 1.8 dBi
Average Gain: -1.9 dBi
Type: Intended for SMD Mounting
Frequency: 2.4GHz to 2.5 GHz
* 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 after this paragraph, consists of various components attached to a printed circuit
board. It is designed with two types of antennas: a dipole antenna (refers to CWD6894-1) and a SMD
antenna (refers to CWD6894-2). An antenna port is located at the edge of the circuit board. For the
CWD6894-1, the antenna port is equipped with a SMA reverse polarity female connector. For the
CWD6894-2, the antenna port is equipped with an U.FL connector.