1. Products Main Features

  * Up to 115.2kbps data rate

  * Low power consumption, Low cost;
  * Carrier frequency: 433MHz or ISM others optional;
  * Interface: RS-232/ RS-485/ TTL  optional;
  * Multi-channels: 8 channels, expandable for 32 channels;
  * Baud rate in air: 1200/2400/4800/9600/19200/38400bps,  expandable 115kbps;
  * Transparent data transmission: What has been received is exactly what has been transmitted, suitable for any standard or non-standard user protocols;
  * Interface format: 8N1/8E1/801 user-defined, or customization for other format interface;
  * Modulation: GFSK. Based on the Gaussian Frequency Shift Keying (GFSK) modulation,

  *High anti-interference and Low BER (Bit error Rate);
  * Half duplex: Integration of receiver and transmitter£¬10ms auto change for receiving and sending;
  * Widen Temperature: -20~+65C (-31~167 F);
  * Working humidity: 10%~90% relative humidity without condensation;
  * Impedance: 50Ohm (SMA antenna port, multiple antenna options available);

 

2. Application areas

  * Automatic meter reading(AMR);
  * Wireless smart terminal: POS, PDA,
  * Wireless electronic display screen, LED display;
  * RS-485 wired multi-drop system changeover wireless system;
  * Wireless remote control, Environment monitor, telemetry system;
  * Check attendance system, Queue-management system and positioning in coal mine;
  * Industrial automatic data collection, Wireless Data Acquisition, Wireless sensor, SCADA.

3. Specifications

  * RF power: 50mW/ 17dBm;

  * Receiving current: 20mA;

  * Transmitting current: 40mA;

  * Power supply: DC 3.3-5 V;

  * Receiving sensitivity: -108 dBm (@9600bps)

                                       -112 dBm (@1200bps); 

 * Size: 47x24x6mm (without antenna port ).

  * Range: 300m (BER=10-⁵@9600bps antenna is 2m above ground in open area),, when 

                500m (BER=10-⁵@1200bps, when antenna is 2m above ground in open area).

4. Interface definition

NOTE: Generally the module is in receiving status.