Telit Wireless Solutions 1vv0300773a Chipper User Manual


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GE863-PRO
3
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-PRO
3
Mechanical Dimensions ............................................................................ 7
3 GE863-PRO
3
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-PRO
3
GSM/GPRS Engine ................................................................ 18
4.2 Turning OFF the GE863-PRO
3
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-PRO
3
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
5.4.1.3Battery Source Power Supply Design Guidelines ......................................................................28
5.4.1.4Battery 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
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