User's Manual

Table of Contents
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342K) 6
Mechanical Drawings – Basic Build ........................................................................................................... 81
Mechanical Drawings – USB Build ............................................................................................................. 82
DC Electrical Characteristics ...................................................................................................................... 83
Power Measurements* ................................................................................................................................. 83
Application Notes ........................................................................................................................................ 84
RF Performances .................................................................................................................................... 84
RF Connection and Antenna ................................................................................................................... 84
Air Interface ............................................................................................................................................ 84
Configuring the HSDPA Modem on Linux SLAX 6 .................................................................................. 86
Baud Rate Switches on the HSDPA SocketModem ............................................................................... 87
Operating Modes .................................................................................................................................... 88
Turn off the SocketModem Using AT Command .................................................................................... 89
Automatic Shutdown ............................................................................................................................... 89
Temperature Control during an Emergency Call ..................................................................................... 89
Power Saving .......................................................................................................................................... 89
Interface Signal Descriptions .................................................................................................................. 91
PART 3 – ANALOG SOCKETMODEMS
Chapter 6 – SocketModem® (MT9234SMI) ........................................................................................ 93
Introduction .................................................................................................................................................. 93
Product Build Options and Ordering Information ..................................................................................... 93
AT Commands Reference Guide ................................................................................................................ 93
Technical Specifications ............................................................................................................................. 94
SocketModem Pin Out ................................................................................................................................. 96
Serial Pin Out .......................................................................................................................................... 96
Parallel Pin Out ....................................................................................................................................... 97
DC Electrical Characteristics ...................................................................................................................... 98
Parallel Timing Requirements ..................................................................................................................... 99
SocketModem Parallel Interface Internal Registers ................................................................................ 100
Application Notes ...................................................................................................................................... 107
Tip and Ring Interface........................................................................................................................... 107
Chapter 7 – SocketModem® (MT5692SMI) ...................................................................................... 108
Introduction ................................................................................................................................................ 108
Product Build Options and Ordering Information ................................................................................... 108
AT Commands Reference Guide .............................................................................................................. 109
Technical Specifications ........................................................................................................................... 110
Pin Outs ...................................................................................................................................................... 112
Operating Conditions ................................................................................................................................ 114
Absolute Maximum Rating ........................................................................................................................ 114
DC Electrical Characteristics .................................................................................................................... 114
Power* Measurements ............................................................................................................................... 115
Parallel Host Bus Timing Table ................................................................................................................ 116
SocketModem Parallel Interface ............................................................................................................... 117
Register Functional Definitions ................................................................................................................ 118
Application Notes ...................................................................................................................................... 127
Tip and Ring Interface........................................................................................................................... 127
Microphone and Speaker ...................................................................................................................... 128
Chapter 8 – SocketModem® (MT2492SMI) ...................................................................................... 130
Introduction ................................................................................................................................................ 130
Product Build Options and Ordering Information ................................................................................... 130
AT Commands Reference Guide .............................................................................................................. 130
Technical Specifications ........................................................................................................................... 131
SocketModem Pin Out ............................................................................................................................... 132