Telit Wireless Solutions 1vv0300773a Contents

GE863-PRO3 Hardware User Guide
1vv0300773a Rev. 0 - 24/01/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 2 of 64
Contents
1Overview ........................................................................................................................... 6
2GE863-PRO3 Mechanical Dimensions ............................................................................ 7
3GE863-PRO3 module connections .................................................................................. 8
3.1BALL-OUT ................................................................................................................................ 8
3.2BALLS LAYOUT ..................................................................................................................... 14
3.3ARM Port IO multiplexing ....................................................................................................... 15
4Hardware Commands .................................................................................................... 18
4.1Turning ON the GE863-PRO3 GSM/GPRS Engine ................................................................ 18
4.2Turning OFF the GE863-PRO3 GSM/GPRS Engine .............................................................. 20
4.2.1Hardware shutdown ........................................................................................................................20
4.3Hardware Unconditional Reboot of GSM/GPRS Engine ........................................................ 20
4.4Turning ON/OFF the GE863-PRO3 ARM ............................................................................... 21
5Power Supply ................................................................................................................. 23
5.1GSM Power Supply Requirements ......................................................................................... 23
5.2ARM Power Supply Requirements ......................................................................................... 24
5.3VRTC Backup supply ............................................................................................................. 24
5.4General Design Rules ............................................................................................................ 25
5.4.1Electrical design Guidelines ............................................................................................................25
5.4.1.1+ 5V input Source Power Supply Design Guidelines .................................................................26
5.4.1.2+ 12V input Source Power Supply Design Guidelines ...............................................................27
5.4.1.3Battery Source Power Supply Design Guidelines ......................................................................28
5.4.1.4Battery Charge control Circuitry Design Guidelines ...................................................................29
5.4.2Thermal Design Guidelines ............................................................................................................31
5.4.3Power Supply PCB layout Guidelines ............................................................................................32
6Antenna ........................................................................................................................... 33
6.1GSM Antenna Requirements .................................................................................................. 33
6.2GSM Antenna - PCB line Guidelines ...................................................................................... 34
6.3GSM Antenna - installation Guidelines ................................................................................... 35
6.4Electro Magnetic Interference - Guidelines ............................................................................ 35
6.5Logic level specifications ........................................................................................................ 36
6.5.1GSM Reset signal ...........................................................................................................................38
7Serial Ports ..................................................................................................................... 39
7.1MODEM SERIAL PORT ......................................................................................................... 39