2 enhanced easy gprs extension, 1 overview – Rainbow Electronics GM862-QUAD-PY User Manual
Page 18
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
Application
V. 24
Data on
Board
EASY
GPRS
TCP/UDP
IP
L1
L2
IP
L2
IP
TCP/UDP
Remote
Application
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