الوصف

The rugged D803 Serial to IP 3G modem  (called DTU as well) is a cellular modem which have been developed especially for M2M application. It provides RS232/RS-485/RS-422/TTL interfaces and equipped with PPP, TCP/IP and DDP protocol, it could convert the user data into IP data and transmit the data to customers data center via HSPA+/HSDPA 3G network in a complete transparent data channel, allows a simple and rapid integration of cellular network connectivity into M2M application.
With compact metal case design, the D80 DTU ideally adapts to onboard standard, easy to deploy and maintenance, it has been widely applied in many fields worldwide, such as power SCADA, oil field, coal mine, weather forecast, environment protection, water conservancy, heating, natural gas, petroleum and so on.

• Optimized EMC design

• Standard PPP, TCP/IP and UDP/IP protocol

• Industrial pluggable terminal block

• Industrial 3G cellular module

• Support APN and VPDN wireless private network

• Support short message service (SMS)

• Support transparent data transmission

• Support data service center with dynamic IP address

• Support LED status indication

• Wide range voltage

• Smart power management

• External power on/off control

• Reliable, flexible and easy to deploy

• Always online: automatically attaches 3G Celullar when powered on

• automatically redials when off line and keep line alive

• Offline when idle and trigged online by user data, ring or SMS

• GPRS channel and SMS mutual backup

• Online/offline control by commands via user equipment

• Data loop test

• Supports up to 4 data service centers communications

• Supports main/backup data service centers communications

• Supports customized setting for each data service center

• Supports TCP/IP, UDP/IP, DDPTM, SMS and AT

• Self-defines transparent or protocol communications

• Self-defines customized data frame separator

• Self-defines reconnecting interval

• Self-defines heart-beat data frame

• Built-in parameters configuration menu

• Configuration tool based on PC

• Remote parameters configuration via data service center

• Remote parameters configuration by SMS

• Parameters configuration via AT+ commands

• Provides function development package

• Provides complete sets of demo source code (VB, VC, C#, Delphi, VB.net)

• Provides data forwarding service center for data transparency forwarding