User's Manual

GL865 Hardware User Guide
1vv0300910 Rev.1 – 2011-07-22
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 13 of 79
4. GL865 module connections
4.1. PIN-OUT
Pad Signal
I/
O
Function Note Type
Audio
20
EAR- AO Earphone signal output, phase - Audio
21
EAR+ AO Earphone signal output, phase + Audio
22
MIC- AI Mic.signal input; phase- Audio
24
MIC+ AI Mic.signal input; phase+ Audio
23
AGND - Analog Ground -
SIM card interface
9
SIMVCC -
External SIM signal – Power supply for
the SIM
1,8 / 3V
10
SIMRST O External SIM signal – Reset 1,8 / 3V
11
SIMCLK O External SIM signal – Clock 1,8 / 3V
12
SIMIO
I/
O
External SIM signal – Data I/O
4.7K
Pull up
1,8 / 3V
X
All
GPI0
can be
program
med
SIMIN I
Presence SIM input
(See para 11.9)
CMOS 2.8V
Trace
44
RXD_AUX I Auxiliary UART (RX Data) CMOS 2.8V
45
TXD_AUX O Auxiliary UART (TX Data) CMOS 2.8V
Prog. / Data + HW Flow Control
1
C109/DCD/GPO O
Output for Data carrier detect signal
(DCD) to DTE
/ GP output
CMOS 2.8V
2
C125/RING/GPO O
Output for Ring indicator signal (RI)
to DTE
/ GP output
CMOS 2.8V
3
C107/DSR/GPO O
Output for Data set ready signal (DSR)
to DTE
/ GP output
CMOS 2.8V
4
C108/DTR/GPI I
Input for Data terminal ready signal
(DTR) from DTE
/ GP input
CMOS 2.8V
5
C105/RTS/GPI I
Input for Request to send signal (RTS)
from DTE
/ GP input
CMOS 2.8V
6
C106/CTS/GPO O
Output for Clear to send signal (CTS)
to DTE
/ GP output
CMOS 2.8V
7
C103/TXD I Serial data input (TXD) from DTE CMOS 2.8V
8
C104/RXD O Serial data output to DTE CMOS 2.8V
DAC and ADC
13
ADC_IN1 AI Analog/Digital converter input A/D
14
ADC_IN2 AI Analog/Digital converter input A/D
15
DAC_OUT AO Digital/Analog converter output D/A