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TANGO55/
& TANGO56/
I
0 INTRODUCTION
TANGO55/i and TANGO56/i are designed for use on any GSM network in the world.
TANGO55/i and TANGO56/i are Tri-Band GSM/GPRS engines that work on three
frequencies GSM 900 MHz, DCS 1800 MHz and PCS 1900 MHz or 850 MHz, DCS 1800
MHz, PCS 1900 MHz, respectively. These full type approved integrated modems
constitute a self contained, fully integrated implementation of the GSM/GPRS.
TANGO55/i and TANGO56/i feature GPRS class B, class 10 (making download at
speeds up to 85 kbps) and support the GPRS coding schemes CS-1, CS-2, CS-3 and
CS-4.
TANGO55/i and TANGO56/i modems incorporate all you need to create high-
performance GSM/GPRS solutions; base band processor, power supply ASIC,
complete radio frequency circuit including a power amplifier, internal and external
SIM interfaces and an antenna interface as well.
The physical interface to the cellular application is made through a RS-232
connector. It consists of 9-pin RS232 interface, required for controlling the unit and
transferring data. They can be directly connected via RS232 interfaces to the serial
port of a desktop or notebook computer. Interfaces for audio signals and applying
power supply are also available.
The external dual band or triple band antenna can directly be connected to the
integrated 50 Ω connector on the modem.
The TANGO55/56 are mobile stations for transmission of voice, data calls and FAX as
well as short messages (SMS - Short Message Service) in GSM Network.
To control the GSM module there is an advanced set of AT commands according to
GSM ETSI (European Telecommunications Standards Institute) 07.07 and 07.05
implemented.
About GPRS:
GPRS is standard for General Packet Radio Service that is an add-on to the GSM
(Global System for Mobile Communications) cellular network - a type of network
used to provide cellular phone service.
When in regions where GPRS is not available, user can still access their important
information with GSM 14.4 kbps data connections.
Users are advised to quickly proceed to the "Security" chapter and read the hints
carefully.
0.1 The differences between TANGO55/i & TANGO56/i
modems
TANGO55
is a Tri-band GSM/GPRS device that operates on three frequencies
GSM 900 MHz, DCS 1800 MHz and PCS 1900 MHz, and is available to use
in the European and Asian Networks.
TANGO55i
is also a Tri-band GSM/GPRS device that operates on three frequencies
GSM 900 MHz, DCS 1800 MHz and PCS 1900 MHz, and is available to use
in the European and Asia Networks. The TANGO55i modem provides a
specific software and hardware (internal TCP/IP stack software with
hardware extension) which has been internally implemented for using
the embedded TCP/IP stack software.
This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission.
I
V
1.03
ERSION
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