Offers the ability to connect Modbus serial/RS485 devices and Modbus TCP/Ethernet client/servers to MQTT publisher/subscriber over LTE cellular network. Supports MQTT connection via eMTC/NB-IoT network Carrier Network Category: CAT-M1/NB1 Speed: Up CAT-M1 - 375 kbps; NB1 - 66kbps Down CAT-M1 - 375 kbps; NB1 - 26kbps LTE Band Support: 2, 3, 4, 5, 8, 12, 13, 20, 25, 26, 28, 71, 85 GPS Feature: Standalone TLS V1.2 and DTLS 1.0/1.2 supported MQTT: version 3.1.1 The JSON format used for uploading/downloading data on the cloud platform, users can customize the JSON content format. Provides remote firmware updating and remote restarting the gateway. Supported protocol types: Modbus protocol, supports Modbus RTU/ASCII master/slave station; Modbus TCP protocol, supports Modbus TCP master/slave station (Modbus TCP Client/Server) Supported function codes: 01, 02, 03, 04, 05, 06, 15, 16 Baud rate: 600 - 115200bps Number of Modbus RTU/TCP connections: The max input bytes ≤512Bytes, the max output bytes ≤512Bytes: The maximum number of RTU/TCP connected stations:31(without relay) and 4 TCP connections Number of commands: 100 Note: Modbus RTU and TCP bytes and commands are counted independently and do not affect each other; Maximum number of attributes: 1000 attributes for Modbus RTU+Modbus TCP Power supply: 12VDC 24VDC ( 9V-30VDC) Operating Temp: -4°F to 140°F (-20°C to 60°C), Rel. Humidity: 5% -95%, non-condensing Dimension (W* H* D): 1.0 in*4.0 in*3.6 in (25mm*100mm*90mm) Installation: 35mm DIN RAIL Protection Level: IP20 https://sstautomation.com/Products/Ethernet/Modbus_MQTT/GT100-MQ-IE.html