Sub-GHz RF Module

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Sub-GHz RF Mesh Slave Module

Product ID.：WL31XS

Communication mode： UART(Local), RF(Remote)

WL31XS module can be set as DN (Distributed Node) in fast wireless data transmission Mesh network, connect and collocate with terminal devices linked to the micro-power network, and finish relay and collection of network data. It can also set as UN (User Node) so as to realize customer device’s collection and synchronization of terminal data. Applicable to AMR/AMI/IoT, it offers best solution for low power consumption, low cost, high efficient, and long distance communication.

  • Main Functions
  • Technical Parameters
  • Anti-interference function. Use low noise, high receiver sensitivity and advanced data encryption technology. High anti-interference function, high communication rate;
  • Binary channel, independent communication. Adopt independent communication strategies in CN and UN channels to maximize user experience;
  • Networking function. Quickly respond to mesh command from wireless communication modules. Repeat and collect data after entering into the network;
  • Wireless communication environment analysis function. Inquire RSSI of communication link between nodes through directive to check current communication quality;
  • Support user device connection. System will allocate one UN channel for user device and strengthen interaction with users;
  • Flexible role configuration. Support DN or UN configuration;
  • Event report function. Automatically send data to CN/UN when working as DN;
  • Local communication parameter self-adaptation. Support local communication baud rate and handshaking self-adaptation.
Item Parameter
PCB Dimension 18.3×32.1mm
Operation mode Mesh
Working frequency band Sub-GHz (customizable)
Modulation mode 2FSK
Channel separation 400 kHz
Tx. power  ≤20dBm (customizable)
Air transmission rate 10 kbps
Local communication rate DN(4800/9600bps)，UN(4800/9600/19200bps)
Local communication verification mode 8E1/8N1
Local communication buffer space 224 Bytes (DN channel)，255 Bytes (UN channel)
Working humidity 10%～90%（no condensation）
Working temperature -40℃～85℃
Power supply 3.5～5.5V
Tx current 103mA@20dBm
Rx current 10mA
Line of sight @10 kbps@100 mW >1km
Antenna characteristic impedance 50Ω