Monitor Generator Accessories For Customer Requirement Of Gprs Wireless Communication
This series products are divided into LXI880/880G/881/881G/882/882G/883/883G six models,meet
customer requirement of GPRS (mobile unicom) wireless communication,CDMA wireless
communication,Ethernet wire communication and WIFI wireless communication.They compatible
with DSE,Harsen,LIXiSE,Smartgen such main controller (because they will compatible
with more and more controller, The model with "G" means this product has the GPS function. The following will introduce LXI880G as sample.
The series is divided into LXI780, LXI880G two models, including models of the "G" indicates that the
product has a GPS function. LXI880G's introduction is as followings.
LXI880G platform based on ARM and embedded operating system, built-in industrial-grade module, it
can be used in harsh environments, working temperature range can be up to -40℃ ~ + 85℃.LXI880G
provide standard RS232 serial interface, can be quickly and PLC, industrial control, instruments, meters,
RTU equipment is linked together, through the GPRS/CDMA network will be linked to LXI880G
equipment data transmission to a host on the Internet, realize the data remote transparent transmission,
at the same time to the front-end equipment of GPS location information reported to host, realize
positioning of the equipment.
LXI880G has positioning, wireless data communications and data processing capabilities in a
compact.Rugged, reliable, easy to install.It can be widely used in construction, transportation and
other industries. Particularly suitable for tower crane monitoring, heavy machinery management.But
also can be used in the field of taxi operations management, transport vehicles, special vehicles,
vehicle rental management and leasing.
Each frame can be set to 1024B length (CACHE 4 frames), suitable for continuous transmission of
large amounts of data;
Use of Aweigh industrial GPRS/CDMA module, embedded protocol stack;
Supply voltage range: 6V to 36V;
Apparatus having power off function, convenient user control;
Data transparent transmission, the user does not need to understand the complex TCP/IP, PPP and
Support data center dynamic domain name or IP address access;
Support for alternate data center;
Support APN virtual private network service;
Support online forever,Idle offline, idle power down,ringing offline,SMS offline , data center
command offline and other online mode;
Support for user data, SMS and telephone wake-up function;
Support break automatically reconnect function;
There is advanced feature the flexible connecting network. It can save much GPRS network flow.
Support local and remote graphical interface to configure and maintain;
Support SMS configuration and maintenance;
Support the virtual serial port data center functions, the seamless connection of the existing PC
Supports GPS positioning data reporting and query functions, data import google map to achieve
precise positioning satellite map;
Reliable design of multiple hardware and software, combined the watchdog technology, make the
safe running of the equipment.
The main parameters of LXI880G
Indicator Status Description:
1.5 Networking mode
The LXI880G module allows the remote user equipment and management center computer for
transparent data communication .Transparent data communication:There is no communication
protocol between the user device and DTU. If DTU transfer data to the target PC,the software
running on the PC can receive what DTU sent.For example, the user device sends a byte of data
“0x68”, then run on the PC side software will receive a byte of data “0x68”.Same if PC transfer data to
2 EQUIPMENT INSTALLATION
The product must be installed correctly, in order to achieve the desired design requirements; this
section mainly explains the installation step product .
The antenna interface is a 50Ω SMA pedestal. And the external antenna must be compatible with
GPRS/CDMA module. If not, there is a risk to damage product, and DTU also can`t work.
2.2SIM Card Installed
The product is used in a mobile GPRS/CDMA network, so we need to purchase the operator SIM
card.Before installing the SIM card,,the first to use a sharp object (such as a small
screwdriver) ,press the drawer yellow dots,to make DTU shell on the SIM card drawer pop up.The
specific steps are as shown in figure 2.1.
Note:It inhibits to take out SIM card during DTU running with power.During initialization, the SIM
card will be deleted all SMS text messages.We apologies that your useful information is lost if you don`t
2.3Power Selection And Installation
Voltage supply range of the product is +6 V ~ 36V, power supply ripple control in less than
300mV.When the product for wireless communications, instant change of current will be great, so
the external power of resistance should be as small.When using a 6V power supply cables to try to
2.4Terminal Signal Description
Note:The interface signal level is accord with the RS-232 procotol standard(±12V).It can`t
directly drive the TTL device. If not,the TTL device is possiable to be damaged. Next is the typical