Rainbow Electronics GE863-PRO3 - Manual (Page 28)

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 28 of 55
3.33 Jammed Detect & Report Extension
3.33.1 Overview
The Jammed Detect & Report feature allows a
Telit GE863-PRO 3 module to detect the presence of a
disturbing device such as a Communication Jammer and give indication to the user and/or send a
report of that to the network.
This feature can be very important in alarm, security and safety applications that rely on the module
for the communications. In these applications, the presence of a Jammer device can compromise the
whole system reliability and functionality and therefore shall be recognized and reported either to the
local system for countermeasure actions or to the network providing remote actions.
An example scenario could be an intrusion detection system that uses the module for sending the
alarm indication for example with an SMS to the system owner, and thief incomes using a Jammer to
prevent any communication between the GSM module and the network.
In such a case, the module detects the Jammer presence even before the break in and can trigger an
alarm siren, other communication devices (PSTN modem) or directly report this condition to the
network that can provide further security services for example sending SMS to the owner or police.
Obviously this last service depends also from network infrastructure support and it may not be
supported by some networks.