User`s manual

A-GPRS1090I User’s Manual Version: 6.021

Note: If the "time frame" or "maximum length packet" is set too small, the network packet issued by users will be

lowered, and will result traffic in increased. If it is set too large, it will lead to sent packets become large (no more than

"the largest packet length" value), propagation delay will also be increased. Users can grasp specific parameters, if the

data need not sub-frame , suggest "time frame" is set to hundreds of milliseconds (default is 100ms), and "the largest

packet length," is set to a few hundred bytes (default is 512 characters).

IDLETIM

Please see the note of "2.2.6 mode" section.

APN，USRNAM，PWD

These parameters can be used by default. If you use a dedicated VPN card, then these parameters can be set according to

the actual situation.

LCOPORT

This parameter is used to set module as "SERVER". When use point-to-point connection, there will be a module serves

as a server, another is client, they will establish TCP or UDP connection.

DTUPWD

When user is authorized to use message configuration module, must send the right secret code, otherwise it will be

impossible to configure. The length of the parameter is 6 characters.

DBGINF

This parameter controls whether the data input is "echo" and whether there are "debug information" outputs.

"Echo": When you use HyperTerminal tools to configure module, HyperTerminal does not show the data that you enter

into the HyperTerminal, it requires module to receive back data from the serial port , in this way it can display the

content that you put in the HyperTerminal. If you use single-chip or other devices to configure the module automatically,

the echo function will be un-useful; then you can turn it off.

"Debug information": in order to give the users convenient to observe the work of module when they debug module at

the scene, the module will print out equipment information from the local serial port, such as the information of

connecting server. After the end of debugging system, debugging information is useless, you can turn it off.