beautypg.com

Siemens TC35i User Manual

Page 3

background image

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