Features 
 Maximum transmission distance: 1000 m 2 modules accessible; 
 Anti-interference ability: 2.4G DSSS spread spectrum technology; 
 Serial application flexibility: RS232 data interface, the maximum baud rate 115200; 
 Flexible mode of transmission: radio transmission or the destination address to send mode optional; 
 Node type flexible: the central node, routing nodes, terminal nodes can be selected with a jumper; 
 Networking capability: star network, tree network, chain-type network, mesh network; 
 Network capacity: 16 channels can be specified or automatically selected, the network ID of 255 set arbitrarily; 
 Low-power options: control SLEEP pin, enter or exit the low power mode; 
 The maximum packet: 256 bytes; 
 Standards for industrial applications. 

 Main Specifications: 
 Band 2.4-2.483GHz 
 Communication protocol standard IEEE 802.15.4 zigbee 
 Mesh network topology, star 
 Modulation DSSS (O-QPSK) 
 Maximum data transfer rate 250KBps 
 64-bit IEEE address of addressing modes, 8-bit network address 
 128-bit AES data encryption 
 Error checking CRC-16/32 
 Channel CSMA-CA access mode, and time slots of the CSMA-CA 
 Channels 16 
 Communication delay 15ms (activation or channel access), 30ms (device discovery) 
 Maximum transmit power 25dbm 
 Receiver sensitivity-92dbm 
 Operating temperature -40-85 ℃ 
 2.4G antenna, external antenna 
 Data Interface RS232/485/422/TTL 

 Applications 
 Wireless remote automatic meter reading (AMR) system, wireless alarm fire safety, building control 
 Wireless Intelligent traffic light control, lamp control wireless dining a la carte, cafeteria selling food system 
 Wireless farming, environmental monitoring wireless access control, time and attendance system 
 Wireless industrial manufacturing, process control, warehousing and logistics wireless telemetry and remote control, laser guns, bar code readers, POS terminals 
 Wireless home monitoring, HVAC, security alarm Wireless Queuing System 
 Wireless Cable Wireless RFID data transmission, said electronic weighing 
 Wireless transmission wireless data acquisition instrumentation and automotive testing wheel alignment