User's Manual

GC864 Hardware User Guide
1vv0300874 Rev.0 – 2010-01-25
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved. Page 4 of 64
Contents
APPLICABILITY TABLE........................................................................................................................................2
1. INTRODUCTION................................................................................................................................ 6
1.1. SCOPE ........................................................................................................................................................6
1.2. AUDIENCE...................................................................................................................................................6
1.3. CONTACT INFORMATION, SUPPORT.................................................................................................................6
1.4. DOCUMENT ORGANIZATION ...........................................................................................................................7
1.5. TEXT CONVENTIONS .....................................................................................................................................8
1.6. RELATED DOCUMENTS..................................................................................................................................8
1.7. DOCUMENT HISTORY ....................................................................................................................................9
2. OVERVIEW...................................................................................................................................... 10
3. GC864 MECHANICAL DIMENSIONS ................................................................................................ 11
3.1. MECHANICAL VIEW OF TELIT GC864-QUAD V2 WITH SIM HOLDER.................................................................12
4. GC864-QUAD V2 / GC864-DUAL V2 MODULE CONNECTIONS.......................................................... 13
4.1. PIN-OUT.................................................................................................................................................13
4.1.1. GC864-QUAD V2 / GC864-DUAL V2 Antenna Connector...............................................................16
5. HARDWARE COMMANDS................................................................................................................ 17
5.1. TURNING ON THE GC864-QUAD V2 / GC864-DUAL V2 ..............................................................................17
5.2. TURNING OFF THE GC864-QUAD V2 / GC864-DUAL V2.............................................................................19
5.2.1. Hardware Unconditional Restart ..................................................................................................20
6. POWER SUPPLY............................................................................................................................. 22
6.1. POWER SUPPLY REQUIREMENTS ..................................................................................................................22
6.2. GENERAL DESIGN RULES............................................................................................................................23
6.2.1. Electrical Design Guidelines .........................................................................................................23
6.2.2. Thermal Design Guidelines...........................................................................................................27
6.2.3. Power Supply PCB Layout Guidelines...........................................................................................28
6.2.4. Parameters for ATEX Applications................................................................................................29
7. ANTENNA ...................................................................................................................................... 31
7.1. GSM ANTENNA REQUIREMENTS ..................................................................................................................31
7.2. GSM ANTENNA – INSTALLATION GUIDELINES................................................................................................32
8. LOGIC LEVEL SPECIFICATIONS...................................................................................................... 33
8.1. RESET SIGNAL...........................................................................................................................................34
9. SERIAL PORTS............................................................................................................................... 35
9.1. MODEM SERIAL PORT ...........................................................................................................................35
9.2. RS232 LEVEL TRANSLATION .......................................................................................................................37
9.3. 5V UART LEVEL TRANSLATION ...................................................................................................................39
10. AUDIO SECTION OVERVIEW........................................................................................................ 41
10.1. SELECTION MODE.......................................................................................................................................41
10.2. ELECTRICAL CHARACTERISTICS....................................................................................................................43