
MD-649 User Manual
11
1.7
Technical Advantages
eTung DTU products are advanced not only from hardware
industrialization, design rationality, software convenience, and
usage flexibility, but also from working stability. Its technical
advantages are easy to see:
Built-in industry-level 4G module with data transfer more stable
and efficient;
Fully supports China Mobile, China Unicom and China Telecom’s
2G/3G/4G networks;
Support point-to-point and multipoint-to-point communication
with 4G wireless network at both ends
Support connecting to 4 data centers at the same time
The serial port DB9 pins support RS232 and RS485 at the same
time, and the serial port type(RS232 or RS485) can be
configured via DTU configuration software or remote control;
Support sending SMS
Support 4G and SMS as backup
Support modifying DTU configurations via SMS
Support modifying DTU configurations remotely at server side
Support querying SIM card number remotely, checking SIM
card balance and traffic within DTU
Support device remote re-boot
Support 4G APN name auto-adaption
Support LBS location
Support eYun platform, server building not needed and
plug-and-play
Support chuankoutong, virtual serial port programming not
needed