D120 Series Cellular IP Gateway Modem
D120 Series Cellular IP Gateway Modem
Compatible with GPRS/GSM/CDMA1x networks, tested in the field (refer to datasheet for details).
Main: Broadband M2M communications SIM failover/standby APN 2G failover for fixed line broadband connections Rapid service deployment applications Support At command RS232/RS485 port option
D120g -- GPRS version
D120c -- CDMA version
For details, please refer to the datasheet.
Please confirm what you need before order.
Brief
We short name Serial to GPRS Gateway as GPRS DTU IP Modem. And Serial to CDMA Gateway as CDMA DTU IP Modem. D120 Series rs232 modem enables various kinds of legacy devices with serial port to communicate over cellular network and the Internet easily and freely. It not only works as a cellular modem, but also can construct a smooth "cellular Data Tunnel" between Host and Remote side, ensuring an efficient communication for data transmission and remote device management. With the selectable RS232/TTL/RS485/RS422 serial port, D120 Series DTU modem is an ideal solution for factory automation, environmental monitoring and remote device management etc. Meanwhile, it is supplied with simple Software interface that streamline application development process, freeing system integrators from dealing with complex communication protocols of GPRS/CDMA and the Internet. Users do not need to change the existing system, saving cost and time for field maintenance, and making it a perfect solution for data transmission.
WI-FI GSM router.
The difference between DTU modem and normal modem
|
Item |
DTU IP Modem |
Normal Modem |
|
Dial up |
Support automatically dialup; Online always; trigger to dialup, schedule to dialup |
Need machine/pc back platform to dialup |
|
TCP/IP, PPP |
Yes |
Yes |
|
Interface |
RS232/RS485 |
RS232/RS485 |
|
Bandwidth for GPRS/CDMA |
20~60Kbit/s |
20~60Kbit/s |
|
Coverage |
Same as GSM network |
Same as GSM network |
|
Transparent Data transmission |
Yes |
No |
|
VDPN |
Yes |
Yes |
|
Point to Point |
Yes |
Depends on network |
|
Point to Multipoint |
Yes |
No |
|
Center to Multipoint |
Yes |
No |
|
Dynamite IP Address Mapping |
Yes |
No |
|
Multi-protocol |
Yes |
No |
|
Applications |
Utilities, traffic control, finance and industry supervision, for device not support dialup |
Mobile Internet access for PC, for device support dialup |
DTU: Data Transmission Unit. Someone calls it as mobile broadband modem, or serial IP modem. It is called as DTU modem by some users.
>>Industrial Application
- Remote Data Monitor and Control
- CCTV, security surveillance
- Water, gas and oil flow metering and schedule
- AMR (automatic meter reading)
- Power station monitoring and control
- Remote POS (point of sale) terminals, ATM,
- Traffic signals monitor and control, Traffic info guidance
- Oil field, weather forecast, environmental protection, street lamp monitoring and control
- Early Warning of Mountain Torrent
- Fleet management
- Power distribution network supervision
- Central heating system supervision
- Weather station data transmission
- Hydrologic data acquisition
- Vending machine
- Telemetry, SCADA
- Vehicle logistics and diagnostics controlling
- Parking meter and Taxi Monitor
- Telecom equipment supervision (Mobile base station, microwave or optical relay station) etc.
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