Hardware parameters

• CPU	600MHz ARM Cortex-A8
  Memory	128MB Flash+128MB DDR3
  IO Port	2 optoelectronic isolation digital point inputs, 2 relay outputs (maximum 5A)
  working voltage	DC 24V, working range DC 9V~28V
  Mechanical structure	engineering plastic
  Overall size	130mm × 94mm × 48mm
  weight	About 305g
  Installation method	Standard guide rail installation
  antenna	nothing

Communication parameters

• Networking methods	Ethernet
  Network format and frequency band	nothing
  Ethernet	3-way 10M/100M adaptive port
  Serial communication port	COM1: RS232/RS485/RS422; COM2: RS485; COM3: RS232
  USB port	1 USB Device 2.0 interface; 1 USB Host 2.0 port

Software parameters

• Real time data monitoring	support
  Historical data recording	support
  Ordinary transmission	support
  VPN transparent transmission	support
  Edge computing	support
  API interface	support
  Management and remote maintenance	Support for remote firmware upgrade, support for importing and exporting configuration files
  Data monitoring	300 points
  Alarm Entry	100 points
  History Entry	30 o'clock
  Historical data storage time	90 days