Products / CA-LCH20 Node

CA-LCH20 Node

Equipped with a hardware watchdog to ensure the device never freezes, together with power surge protection (level 3), 485 surge protection (level 3) and ESD protection (level 4).

CA-LCH20 Node

Key Features

  • Supports concentrator communication protocol
  • Supports active reporting, passive polling, server-initiated delivery and other transmission modes
  • Supports encrypted data transmission
  • AT command configuration with companion setup tools
  • 2000 m transmission distance
  • 138.5dBm Receiving sensitivity
  • RS232/485 interface
  • 5-36 V power supply
  • ESD protection (level 4)
  • Power surge protection (level 3)
  • 485 surge protection (level 3)
  • Hardware watchdog — never freezes

Specifications

ParameterValue
Serial portWireless standard
LoRaNumber of ports
RS232*1, RS485*1Frequency range
StandardRS-232: DB9 male; RS-485: (A+, B−)
Transmit power10dBm~20dBm
Data bits8 bit
Stop bit1 2
Parity bitNone, Even, Odd
Receiving sensitivity138.5dBm @0.268Kbps
Baud rate1200/2400/4800/9600/ 19200/38400/57600/ 115200
AntennaSMA antenna connector (male thread, female pin)
CacheRX:200byte, TX: 200byte
Transmission distance2000 m (test conditions: clear weather, open area, maximum power, antenna gain included)
Gain 5 dBi, height greater than 2 m, 0.488 K, default channel)Flow control
Protection485 surge protection (level 3)
Operating voltage5 V – 36 V
Wireless network typeLoRa
Operating currentTransmit current 111 mA at 5 V; standby current 45 mA at 5 V
Security mechanism128-bit data encryption

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