Siemens TC35i - Manual (Page 3)

TC35i Terminal Hardware Interface Description
Confidential / Released
TC35i_T_HD_v01.05 Page 3/37 10.07.2003
Contents
0 Document history....................................................................................................... 5
1 Introduction ................................................................................................................ 6
1.1 References ......................................................................................................... 6
1.2 Standards ........................................................................................................... 7
1.3 Safety precautions .............................................................................................. 8
1.4 Terms and abbreviations....................................................................................10
2 Key features of TC35i Terminal ................................................................................12
3 Interface description.................................................................................................13
3.1 Overview ............................................................................................................13
3.2 Block diagram of a GSM application ..................................................................14
3.3 The TC35i GSM engine .....................................................................................15
3.4 Operating modes ...............................................................................................16
3.5 Terminal circuit...................................................................................................17
3.5.1 Power supply and On/Off control ............................................................18
3.5.1.1 Maximum number of turn/on & turn/off cycles ......................................19
3.5.2 RTC ........................................................................................................20
3.6 Upgrading TC35i Terminal firmware ..................................................................20
3.6.1 RS-232 interface.....................................................................................20
3.6.2 Audio interface........................................................................................22
3.6.3 Radio interface .......................................................................................25
3.6.4 SIM interface ..........................................................................................26
3.6.5 Status LED .............................................................................................26
4 Mechanical characteristics and mounting advice ..................................................27
4.1 Attaching the terminal ........................................................................................28
5 Electrical and environmental characteristics..........................................................29
6 Full type approval......................................................................................................35
6.1 Restrictions ........................................................................................................36
6.2 CE Conformity....................................................................................................36
6.3 EMC...................................................................................................................36
7 List of parts and recommended accessories..........................................................37