GC864 Hardware User Guide
1vv0300874 Rev.1 – 2010-03-29
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
Page 59 of 64
11.1.1.
Debug of the GC864-QUAD V2 / GC864-DUAL V2 in Production
To test and debug the mounting of the GC864, we strongly recommend to foreseen
test pads on the host PCB, in order to check the connection between the GC864-
QUAD V2 / GC864-DUAL V2 itself and the application and to test the performance of
the module connecting it with an external computer. Depending by the customer
application, these pads include, but are not limited to the following signals:
Pin
Signal
I/O Function
Internal
Pull up
Type
ADC Converters
5,6,7,
46
GND
-
Ground
Ground
1,2,3,4 VBATT
-
Main power supply
Power
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
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
49
PWRMON
O
Power ON Monitor
CMOS 2.8V
23
RX_TRACE
I
RX Data for debug monitor
CMOS 2.8V
24
TX_TRACE
O
TX Data for debug monitor
CMOS 2.8V
47
SERVICE
I
SERVICE connection
CMOS 2.8V
