CXR2

CXR2
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CXR2

Product catalog summary
Features:
  • Conforms to EN 300 220-3 and EN 301 489-3 standards.
  • High-performance double superhet. PLL synthesizer with TCXO.
  • SAW front-end filter and usable range over 1km.
  • 16-bit unit address allowing 65535 unique addresses.
  • Momentary and latched outputs, fully screened, low profile.
  • Re-programmable via RS232 interface with low power requirements.
Applications:
  • Industrial telemetry and telecommand, HVAC controls.
  • Wireless door entry systems, simple On/Off switching.
  • In-building environmental monitoring and control.
  • High-end security and fire alarms, heavy vehicle/machinery controls.
  • Status reporting and monitoring secure systems.
Technical Summary:
  • Operating frequency ranges: 173.200 - 173.325MHz (UK), 150.825 - 152.450MHz (Australia), 433.875 - 434.650MHz (EU), 458.525 - 459.1MHz (UK).
  • 32 channels with 25kHz channel spacing.
  • Transmit power options: +10dBm (10mW) / +20dBm (100mW).
  • Supply range: 3.1 – 15V for TX @ 10mW and RX, 4.1 – 15V for TX @ 100mW.
  • Current consumption: 34mA @ 10mW, 90mA @ 100mW (transmit), 20mA (receive).
  • Receiver sensitivity: -118dBm for 12 dB SINAD.
  • Serial configuration via inverted RS232 at 3V CMOS level.
Control Functions:

The CXT and CXR modules provide simple 'on/off' control functions without the need for additional microprocessors or remote control chips. The modules include a single function controller/actuator implemented in the firmware, allowing for latched or momentary outputs.

Pin Descriptions:
  • CXT: Includes Vcc, Ground, Transmit Enable, TXD, SI, A (in), B (in), T_out.
  • CXR: Includes Vcc, Ground, Receiver Enable, RXD, N/C (AF out), SI, A (out), B (out), R_in, RSSI.
Specifications:
  • Frequency stability: ±1.5kHz, Channel spacing: 25kHz, Number of channels: 32.
  • Operating temperature: -20 ºC to +55 ºC, Storage: -30 ºC to +70 ºC.
  • Transmitter output power: +10dBm (10mW) ±1dB, +20dBm (100mW) ±1dB.
  • Receiver sensitivity: -115dBm for <0.1% data errors.
Programming:

Uses a 2400 baud CMOS level inverted RS232 format. Commands include GOCHAN, AVALUE, LOAD, RVALUE, and more for setting channel numbers and unit addresses.

RSSI:

The CXR module includes a wide range RSSI for assessing link quality, with output ranging from 0.5V to 2.5V depending on signal strength.

Antenna Requirements:

Recommended antennas include whip, helical, and loop types, each with specific design and performance characteristics.

Ordering Information:

Various models available for different frequency bands and power requirements, including VHF and UHF options.

Legal and Compliance:

Product complies with R&TTE Directive and is subject to radio interference. Not recommended for life-critical applications.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.