GC864 Hardware User Guide
1vv0300874 Rev.1 – 2010-03-29
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
Page 16 of 64
NOTE:
If not used, almost all pins must be left disconnected. The only exceptions are the
following pins:
Pin
Signal
Function
1
VBATT
Main power supply
2
VBATT
Main power supply
3
VBATT
Main power supply
4
VBATT
Main power supply
5
GND
Ground
6
GND
Ground
7
GND
Ground
46
GND
Ground
25
C103/TXD
Serial data input (TXD) from DTE
26
C104/RXD
Serial data output to DTE
31
C105/RTS
Input for Request to send signal (RTS) from DTE
53
ON/OFF*
Input command for switching power ON or OFF (toggle command).
54
RESET*
Reset input
23
RX_TRACE
RX Data for debug monitor
24
TX_TRACE
TX Data for debug monitor
47
SERVICE
SERVICE connection
3.3.1.
GC864-QUAD V2 / GC864-DUAL V2 Antenna Connector
The GC864-QUAD V2 / GC864-DUAL V2 module is equipped with a 50
Ω
RF connector
from Murata, GSC type P/N MM9329-2700B.
The counterpart suitable is Murata MXTK92 Type or MXTK88 Type.
Moreover, the GC864-QUAD V2 / GC864-DUAL V2 has the antenna pads on the back
side of the PCB. This allows the manual soldering of the coaxial cable directly on the
back side of the PCB. However, the soldering is not an advisable solution for a
reliable connection of the antenna.