31 software features, 1 enhanced easy gprs extension – Rainbow Electronics GE863-PRO3 User Manual
Page 24
GE863-PRO
3
Product Description
80285ST10036a
Rev. 1 - 08/08/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 24 of 55
3.31 Software Features
3.31.1
Enhanced Easy GPRS Extension
The Easy GPRS feature allows a
Telit GE863-PRO
3
modules
user to contact a device in Internet and
establish with it a raw data flow over the GPRS and Internet networks.
This feature can be seen as a way to obtain a “virtual” serial connection between the Application
Software on the Internet machine involved and the controller of the
Telit GE863-PRO
3
modules
,
regardless of all the software stacks underlying.
An example of the protocol stack involved in the devices is reported:
This particular implementation allows to the devices interfacing to the
Telit
GE863-PRO
3
modules
the use
of the GPRS and Internet packet service without the need to have an internal TCP/IP stack since this
function is embedded inside the module.
Easy GPRS overcomes some of the known limitations of the previous implementation and implements
some new features such as:
• Keep the GPRS context active even after the closing of a socket, allowing the application to keep
the same IP address;
N
N
e
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t
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w
w
o
o
r
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k
k
I
I
n
n
t
t
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e
r
r
w
w
o
o
r
r
k
k
i
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n
g
g
L1
IP
V. 24
Serial Line
Driver
EASY
GPRS
Local
Application
V. 24
Data on
Board
EASY
GPRS
TCP/UDP
IP
L1
L2
IP
L2
IP
TCP/UDP
Remote
Application
V
V
i
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r
r
t
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a
a
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l
S
S
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a
l
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L
L
i
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n
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k
k
Controller
Device
Telit‘s
Module
GPRS Network and Internet
Remote
Device