User's Manual

GE864-QUAD V2 Hardware User Guide
1vv0300841 Rev.0.1 24/11/09
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 3 of 65
Contents
1 Overview ...........................................................................................................................6
2 GE864-QUAD V2 Mechanical Dimensions .....................................................................7
3 GE864-QUAD V2 module connections ...........................................................................8
3.1 PIN-OUT...................................................................................................................................8
3.1.1 BGA Balls Layout........................................................................................................................... 12
4 Hardware Commands ....................................................................................................14
4.1 Turning ON the GE864-QUAD V2 module ..........................................................................14
4.2 Turning OFF the GE864-QUAD V2 ......................................................................................17
4.2.1 Hardware shutdown....................................................................................................................... 17
4.2.2 Hardware Unconditional Restart.................................................................................................... 18
5 Power Supply .................................................................................................................20
5.1 Power Supply Requirements...............................................................................................20
5.2 Power Consumption.............................................................................................................21
5.3 General Design Rules ..........................................................................................................22
5.3.1 Electrical Design Guidelines .......................................................................................................... 22
5.3.1.1 + 5V input Source Power Supply Design Guidelines ................................................................ 22
5.3.1.2 + 12V input Source Power Supply Design Guidelines .............................................................. 23
5.3.1.3 Battery Source Power Supply Design Guidelines ..................................................................... 25
5.3.2 Thermal Design Guidelines ........................................................................................................... 26
5.3.3 Power Supply PCB layout Guidelines ........................................................................................... 27
6 Antenna...........................................................................................................................28
6.1 GSM Antenna Requirements ...............................................................................................28
6.2 GSM Antenna - PCB line Guidelines...................................................................................29
6.3 GSM Antenna - Installation Guidelines ..............................................................................30
7 Logic level specifications..............................................................................................31
7.1 Reset signal ..........................................................................................................................32
8 Serial Ports .....................................................................................................................33
8.1 MODEM SERIAL PORT.........................................................................................................33
8.2 RS232 level translation ........................................................................................................35
8.3 UART level translation .........................................................................................................37
9 Audio Section Overview ................................................................................................40
9.1 INPUT LINES (Microphone) .................................................................................................41
9.1.1 Short description............................................................................................................................ 41