GPRS MODEM and GPRS DTU main difference analysis

GPRS DTU full name GPRS data terminal unit, hereinafter referred to as GPRS module, the software design, it encapsulates the content of the protocol stack and embedded operating system, hardware can be regarded as embedded PC on the combination of wireless access part;

GPRS MODEM is a physical channel access GPRS packet networks, it has no operating system itself, must be attached to the computer ( Similar in function and cable MODEM) Above, in computer operating system to the PPP dial-up connection, is usually used in conjunction with PC.

DTU and modems are not the same.

on software design, DTU encapsulates the content of the protocol stack and embedded operating system, hardware embedded PC and wireless access is considered to be a part of the joint.

GPRS/CDMA Modem is connected to a physical channel of GPRS/CDMA packet networks, it has no operating system itself, must be attached to the computer ( On the function is similar to the cable Modem) Above, in computer operating system to the PPP dial-up connection, is usually used in conjunction with PC.

in some ways, DTU is the combination of embedded PC and GPRS/CDMA Modem, but it is not only can be used alone as a Modem, it also can complete data protocol conversion and transparent transmission function.

in use, the front-end acquisition device or devices, intelligent data usually provide standard data interface, such as RS232, RS485/422, the front end user equipment is suitable for using DTU, with the aid of GPRS/CDMA network platform, the data communication on implementation and the monitoring center.

GPRS MODEM need access to a computer, realize the network connection, such as central station PC host can through GPRS MODEM access GPRS network, thus form a center server, network monitoring, data communication, etc.

in some ways, GPRS DTU is the combination of embedded PC and GPRS MODEM.

if it is to ensure long-term reliable data transfer, you should adopt GPRS DTU, through GPRS network platform, the data communication on implementation and the monitoring center.

even if the scene is a computer, you can set the dial-up networking, but in the case of unattended for automatic transmission, also recommend the use of GPRS DTU, because ordinary computer operating system ( Such as Windows) Dial-up networking is mainly for ordinary users of online business, Such as browsing the web, send and receive Email etc. ) Design, rather than for reliable data transceiver application to design.

, for example, to break the processing of redial, Windows operating system is the most prompt network break line, not for automatic redial, for the application field of unattended, automatic redial should be the most basic requirements. And professional GPRS DTU processing is very perfect in these areas.

as a result, in the field of need data reliable transmission over a long period of time, should choose to use GPRS DTU. If it is only used for wireless Internet can choose GPRS MODEM.