LTE/GSM – RS232 gateway with data logger

  • LTE, GSM communication with GNSS
  • USB pendrive data logger
  • Opto-isolated RS232 interface

Gateway dedicated to work with central controlling and monitoring systems. It directly send data from serial interface RS232 via LTE/GSM or Ethernet to the server. Gateway has isolated RS232 interface to communicate with weight scales, energy meters, sensors and any other RS232 devices. It also has an additional data logger function. It uses a USB flash drive for this purpose. In case of communication failure with the server, the gateway keeps a log on a flash drive and sends this data to the server when communication is regained. Can be configured by: internal website, SMS, string from server and configuration file loaded in predefined URL. For accurate time and location it has GPS and RTC.




  • Machines and PLC monitoring, weigh scale monitoring
  • Sensor monitoring and data logging

CPUARM Cortex-M4
Storage8MB, USB host with pendrive support
CellularLTE, GPRS
Antenna Connectors1 x SMA for mobile
Ethernet1 x 10/100 Ethernet port
Serial1 x opto-isolated RS232
Input/output2 x opto-isolated digital Inputs
Status Indicators4 x signal strength, 2 x RS/TX, 2 x digital inputs, 1 x activity, 1 x power
Power8-36V DC with reverse polarity protection, PoE (spare pair)
Power backupSuperCAP backup for last message (depend on product variant)
Operating temperature-25°C to 75°C
HousingAluminium housing with DIN rail mounting option
Dimensions88mm x 87mm x 35mm

Operating systemEmbedded system
Network protocolsTCP, IPv4, ICMP, NTP, DNS, HTTP, ARP, JSON, SSLv3, TLS 1.2
SMS functionsConfiguration, input alerts, device status, restart
Configurationby internal website, by SMS, commands from server, file from server
(depend on product variant)
Configuration backupConfiguration backup save and load from internal website
SerialRS232 to JSON
Access securityInternal website password, mobile number access list

This gateway has been upgraded to the newer AG-822 version. The functionality has remained the same. Go to AG-822