Arima
Communications
Faro3 User Manual
2
of
12
1 Scope
This document describes the electrical and mechanical of the Faro3 GSM/GPRS
modem in a module format.
2 Introduction
Faro3 is next version of Faro2 GPRS socket-type module. It follows the design of
Faro2 but does not include the board-to-board connector which is replaced by two
rails of stamp holes on the edges of the PCB.
The interface of Faro3 includes:
z
System
power
z
External reset input
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System
on
control
z
1.8V/3.0V SIM interface
z
2.85V output power source
z
UART
interface
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SSC interface (SPI interface for debug message)
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Differential micro-phone in
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Differential speaker out
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ANT
interface
SSC interface, differential micro-phone in and differential speaker out are new in
GPRS module. They are not included in Faro2.
2.1 General Communication Features
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GSM/GPRS protocol stack R.99
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GPRS multi-slot class 10
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CS-1, CS-2, CS-3, CS-4
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GSM850/PCS1900 Dual Band & GSM900/DCS1800 Dual Band options
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Subset of 3GPP 27.005, 3GPP 27.007 and customized proprietary AT
commands
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Voice supports HR/FR/EFR/AMR, Echo Cancellation and Noise Reduction.
