IoT gateway D223

3GGSMGPRS

Cellular IoT Gateway (Cellular DTU,Converting RS485 to 4G) Model no：D223 The GSM/GPRS/3G/4G IOT M2M Modem DTU D223 is a powerful and programmable multi-purpose wireless cellular modem and data transfer unit (DTU). It provides a secure, high speed, reliable wireless data transmission between com port and internet connection for customers over GPRS/3G/4G wireless cellular network. Also, it can be used as SMS modem and Modbus RTU to Modbus TCP converter.Supports SMS,GPRS,3G, 4G Lte Cellular Networks.Compatible Modbus TCP and MQTT IoT Protocols and can intergrate to the KPIIOT IoT Cloud Platform and OPC, SCADA and MES systems. 1. Can be operated from anywhere, no distance limitation; 2. Quad band 850/900/1800/1900Mhz GSM GPRS Module inside; 3. 3G UMTS/HSDPA/4G Modules are optional.; 4. Embedded 32 bit ARM9 MCU, reliable performance with in-built watchdog; 5. Multi-functional, supports AT Commands, Transparent SMS and Data Transfer; 6. 1 TTL port can be used for TTL device data transfer; 7. 1 three-wire RS485 serial port, RS232 is optional, Baud rate adjustable from 1200~115200bps, ± 15KV ESD protection; 8. 1 digital input, supports dry contact, wet contact, pulse counter can be used as alarm, or trigger to wakeup or online event; 9. Powerful programmable features, supports programmable handshake message, etc; 10. Real-time online data transfer, supports always only or event triggered online; 11. Build-in protocol stack, support TCP/UDP network protocol; 12. Support transparent data transfer and Modbus TCP protocol conversion; 13. Heartbeat function and autodial to ensure the device online;