User's Manual

XENTISSIMO
PRODUCT MANUAL
G
S
M
G
S
M
Comm. Tower
Software download &
Terminal Management Server
Transaction
host
GSM provider
Figure 9 – GSM configuration
For a GPRS transaction, the data is sent to the communication tower from where
it’s transmitted over a data network, which might be the public Internet, to the
host. The protocol used is TCP/IP. We suggest that these transactions are secured,
from terminal to host, using SSL (Secure Socket Layer).
Figure 10 – GPRS configuration
T
C
P
/
I
P
o
v
e
r
G
P
R
S
Comm. Tower
Data
network
TCP/IP
Software download &
Terminal Management Server
Transaction
host
TCP/IP
TCP/IP
TCP/IP
SSL
The GSM/GPRS interface has the following main specifications:
• GSM supports communication speeds of up to 14.400 bps, via the GSM
V.110 data or analogue data protocol;
• GPRS class 10 supports data rates of up to 85.600 bps in download mode
(from host to XENTISSIMO) and 42.800 bps in upload mode (from
XENTISSIMO to host);
• Full roaming service;
• SMS capability: XENTISSIMO can send and receive messages of maximum
160 alphanumeric characters;
TECHNICAL SPECIFICATIONS - 23