KPM202 4G WIFI MQTT Modbus communication gateway

KPM202 4G WIFI MQTT Modbus communication gateway

KPM202 Modbus communication gateway is an important part of the intelligent distribution automation system to complete the power distribution room microcomputer protection,automatic devices,monitoring and other intelligent devices and computer systems,power grid automation system to achieve the exchange of information between the far station information to the host exchange and network exchange,thus forming a fully decentralized RTU communication system.

KPM202 is with 2 RS485 port and one RJ45 port. Optional WIFI, GPRS, 4G wireless connection method. 


  • KPM202 Communication gateway Hardware: 
  • NUC 970 CPU
  • Built in 64M DDR2, WDT, RTC, etc. 
  • 128M NAND Flash (support 128M/256M/512M)
  • Supports PRNG/DES/3DES/AES/SHA/HMAC encryption with up to 256-bit encryption mode.
  • Communication interface:
  • Downlink: 2 RS485 port and 1 RS232 port.
  • Uplink:
  • 1*10M/100M internet with RJ45 interface. 
  • 2 SIM card interface, 1 antenna interface, radio frequency 850/900/1800/1900MHz. 
  • Power requirement:
  • Power supply 6-24VDC,12VDC recommended.
  • Power consumption: 250mA@ 12VDC, 3W
  • Mechanical properties:
  • Metal shell
  • 120*75*30mm
  • Operating temperature: -25~70℃
  • Storage temperature:-30~75℃


Function type    
Working power Rated voltage 6-24 VDC, 12 VDC recommended
Power consumption <3VA
Capacity index Network interface  1 * 10/100M RJ45 interface
Serial port  2 * RS485 port +1 * RS232
Communication master station protocols <16/pc
Serial port rate 300bps to 38.4kbps, programmable
Transmission mode Full or half duplex
Performance index Dual machine switching time <5s
MTBF >50000h
Status indication Panel LED, reflecting the serial port data transmission and reception status
Protocol Standard protocol IEC60870-5-101/103/104,MODBUS,CDT,
Special protocol DNP3.0 and other over 30 protocols,can be developed according to on site needs
EMC Fast pulse group immunity IEC61000-4-5, level 3
Surge immunity IEC61000-4-2, level 3
Electrostatic immunity IEC61000-4-4, level 3
Working environment Ambient temperature -25℃~+70℃
Relative temperature 5%~95%, no condation
Storage temperature -30℃~+75℃
Mounting size Mounting type Wall mounted
Size L×W×H 120mm×75mm×30mm


KPM202 User Manual Jan 01,70

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