Siemens M20 Terminal Technical Description page 3

Siemens Information and Communication Products
Table of contents
1 Overview
2 Safety precautions for the user
2.1 Electrical safety.................................................................................................................... 8
2.2 Aircraft safety ...................................................................................................................... 8
2.3 Environments with explosive substances .......................................................................... 8
2.4 Safety on the road................................................................................................................ 8
2.5 Non-ionizing radiation ........................................................................................................ 8
2.6 Electronics in medical equipment ...................................................................................... 8
2.7 Precautions in the event of loss/theft of the Cellular Engine and the SIM card............ 8
3 General product description M20
3.1 Teleservices ........................................................................................................................ 10
3.2 Data services ...................................................................................................................... 11
3.3 Mobile station features...................................................................................................... 11
3.4 Supplementary mobile station features........................................................................... 14
3.5 System requirements......................................................................................................... 15
3.6 CE conformity.................................................................................................................... 15
4 Hardware interfaces
4.1 Pin assignment of the 80-pole SMD connector ............................................................... 16
4.2 Power supply...................................................................................................................... 17
4.3 Interfaces on the 80-pole SMD connector ....................................................................... 17
4.4 Audio interface .................................................................................................................. 25
4.5 Antenna interface .............................................................................................................. 26
5 AT command interface
5.1 Syntax of the standard AT commands ............................................................................ 27
5.2 Messages returned for normal data communication ..................................................... 27
5.3 Standard AT Hayes commands for controlling the M20............................................... 28
5.4 AT commands and responses to GSM 07.07 and GSM 07.05 ....................................... 54
5.5 AT Cellular commands to GSM 07.07............................................................................. 55
5.6 AT commands to GSM 07.05 for SMS ............................................................................ 93
5.7 Siemens-defined AT commands for enhanced functions............................................. 111
5.8 Comparison between the MMI string commands and AT command ........................ 138
5.9 Summary of CME - CMS Errors................................................................................... 139
6 Man Machine Interface
6.1 Overview........................................................................................................................... 142
6.2 Keypad address matrix ................................................................................................... 142
6.3 Additional display information ...................................................................................... 143
6.4 MMI features and user-defined settings ....................................................................... 143
6.5 MMI functions ................................................................................................................. 146
6.6 Power supply indicator ................................................................................................... 153
7 Peripheral devices
7.1 GSM antenna ................................................................................................................... 154
7.2 SIM card reader .............................................................................................................. 154
7.3 SIM cards ......................................................................................................................... 156
Version 8 dated 15.03.00
7
8
9
16
27
142
154
A
3