Owner's manual

Easy GPRS User Guide
80000ST10028 Rev. 4 - 16/07/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 18 of 63
2 Enhanced Easy GPRS Extension
2.1 Overview
The Easy GPRS feature allows the Telit module users 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 module, regardless of all the
software stacks underlying.
An example of the protocol stack involved in the devices is reported:
N
N
e
e
t
t
w
w
o
o
r
r
k
k
I
I
n
n
t
t
e
e
r
r
w
w
o
o
r
r
k
k
i
i
n
n
g
g
L1
IP
V. 24
Serial Line
Driver
Local
App
lication
V. 24
Data on
Board
EASY
GPRS
TCP/UDP
IP
L1
L2
IP
L2
IP
TCP/UDP
Remote
App
lication
V
V
i
i
r
r
t
t
u
u
a
a
l
l
S
S
e
e
r
r
i
i
a
a
l
l
L
L
i
i
n
n
k
k
Controller
Device
Telit‘s
Module
GPRS Network and Internet
Remote
Device