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Quick Overview

Based in Wuhan, Central China Hubei Province, Lilly Electronics is engaged in fabrication, sales and R&D of consumer electronics maninly in the industry of Laser, IC and LED! You are welcome to visit us for culture exchange and mutrual business development and progress.


Working Voltage: 3.8-4.2V Working current: 10-100mA, max 1200mA Working temperature: -20~75Celsius Storage temperature: -40~85Celsius Storage humidity: 5%~95%RH GPRS DTU (Data Transfer unit) is a wireless terminal equipment which can converter serial data to IP data or converter IP data to serial data, then transmit through wireless communication network.
GPRS DTU is to use GPRS network to transmit data, it adopts industrial-grade embedded processor, embedded TCP/IP protocol stack.
To provide users with virtual private networks, which is high speed, stable and reliable, data terminal online forever, and a variety of protocol conversion.
Support four frequency: 850,900,1800,1900
Support Audio transmission by GPRS
Only support 2G and 2.5G, do not support 3G, CDMA, EDGE

Support KEEP-Live,support configuration via SMS
Password authentification for SMS configuration.
Support network connection in Max 4 Channel,can be sent data from serial port to different servers.
Support TTL UART interface Easy to use, only configurate few parameters
Using single module embedded protocol stack, no external CPU, higher stability
Embedded TCP/IP protocol stack and GPRS technology
Support remote parameters settings, can change IP, port, ect. by SMS
Support GSM network, four frequency for global
Support public and APN network access
Can configure heartbeat pack data format, transmit interval, and keep connection with server.
Can configure log pack data format and automatically establish network connection with server.
Support data length control, can set the length of single sending package and data pack waiting time.
Support ALWAYS ONLINE mode, and dropped reconnect.
Completely transparent transmission, can take place of data transfer radio, no changes needed on your original system
Use aluminum alloy case, shielding external disturbance effectively


1 x USR-GPRS232-7S2 with antenna

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