Cellular modem D223

DTURS232GSM

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 embedded high reliable 32bit ARM9 MCU and industrial GSM/GPRS/3G/4G Cellular Engine inside. 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. Moreover, it is suitable for transparent transferring SMS text between mobile phone, computer and RS232/RS485/TTL Serial port over GSM/3G/4G wireless cellular network. It can be used as SMS modem supports transparent transferring SMS, AT Commands, and provides 1 digital input can be used as SMS Alarm and Pulse Counter Alarm, too. Functions & Features of the GSM/GPRS/3G/4G IOT M2M Modem : 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;