GC864 Hardware User Guide
1vv0300874 Rev.1 – 2010-03-29
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
Page 14 of 64
Pin
Signal
I/O Function
Internal
Pull up
Type
25
C103/TXD
I
Serial data input (TXD) from DTE
CMOS 2.8V
26
C104/RXD
O
Serial data output (RXD) to DTE
CMOS 2.8V
27
C107/DSR
O
Output for Data set ready signal (DSR) to DTE
CMOS 2.8V
28
C106/CTS
O
Output for Clear to send signal (CTS) to DTE
CMOS 2.8V
29
C108/DTR
I
Input for Data terminal ready signal (DTR) from DTE
CMOS 2.8V
30
C125/RING
O
Output for Ring indicator signal (RI) to DTE
CMOS 2.8V
31
C105/RTS
I
Input for Request to send signal (RTS) from DTE
CMOS 2.8V
32
C109/DCD
O
Output for Data carrier detect signal (DCD) to DTE
CMOS 2.8V
DAC and ADC
37
ADC_IN1
AI
Analog/Digital converter input
A/D
38
ADC_IN2
AI
Analog/Digital converter input
A/D
39
ADC_IN3
AI
Analog/Digital converter input
A/D
40
DAC_OUT
AO Digital/Analog converter output
D/A
Miscellaneous Functions
45
STAT_LED
O
Status indicator led
CMOS 1.8V
46
GND
-
Ground
Ground
49
PWRMON
O
Power ON Monitor
CMOS 2.8V
53
ON/OFF*
I
Input command for switching power ON or OFF (toggle command). The
pulse to be sent to the GC864-QUAD V2 / GC864-DUAL V2 must be
equal or greater than 1 second.
47K
Ω
Pull up to VBATT
54
RESET*
I
Reset input
55
VRTC
AO VRTC Backup capacitor
Power
Telit GPIO / DVI
36
DVI_CLK
-
DVI_CLK (Digital Voice Interface Clock)
CMOS 2.8V
59
TGPIO_04/TXCNTRL
I/O Telit GPIO4 Configurable GPIO / RF Transmission Control
CMOS 2.8V
63
TGPIO_10/DVI_TX
I/O Telit GPIO10 Configurable GPIO / DVI_TX (Digital Voice Interface)
CMOS 2.8V
65
DVI_RX
I/O DVI_RX (Digital Voice Interface)
CMOS 2.8V
66
TGPIO_03
I/O Telit GPIO3 Configurable GPIO
CMOS 2.8V
67
TGPIO_08
I/O Telit GPIO8 Configurable GPIO
CMOS 2.8V
68
TGPIO_06 / ALARM
I/O Telit GPIO6 Configurable GPIO / ALARM
CMOS 2.8V
70
TGPIO_01
I/O Telit GPIO1 Configurable GPIO
CMOS 2.8V
71
DVI_WAO
I/O DVI_WAO (Digital Voice Interface)
CMOS 2.8V
73
TGPIO_07 / BUZZER
I/O Telit GPIO7 Configurable GPIO / Buzzer
CMOS 2.8V
74
TGPIO_02 / JDR
I/O Telit GPIO02 I/O pin / Jammer detect report
CMOS 2.8V
76
TGPIO_09
I/O Telit GPIO9 Configurable GPIO
CMOS 2.8V
78
TGPIO_05/ RFTXMON I/O Telit GPIO05 Configurable GPIO / Transmitter ON monitor
CMOS 2.8V
RESERVED
17
Reserved
-
33
Reserved
-
34
Reserved
-