Modem-controller
Modem-controller on its board has:
- interfaces - RS232, RS485, M-Bus (4 devices), 1-Wire (10 DS18B20 temperature sensors);
- 4 analog inputs 4-20mA;
- 4 discrete inputs;
- Software implementation of wireless data transmission over Wi-Fi and GPRS channels using a secure exchange protocol.
- interfaces - RS232, RS485, M-Bus (4 devices), 1-Wire (10 DS18B20 temperature sensors);
- 4 analog inputs 4-20mA;
- 4 discrete inputs;
- Software implementation of wireless data transmission over Wi-Fi and GPRS channels using a secure exchange protocol.
Kyiv 
A little busy