Specifications

Table of Contents
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342F) 7
Chapter 4 – SocketModem (MT2456SMI-22) ............................................................................................................88
Introduction.........................................................................................................................................................88
Product Ordering Information............................................................................................................................88
Technical Specifications ....................................................................................................................................89
SocketModem Configuration .............................................................................................................................90
Serial Configuration .......................................................................................................................................90
Electrical Characteristics...................................................................................................................................91
3.3V Serial SocketModem .............................................................................................................................91
5V Serial SocketModem ................................................................................................................................91
Applications Notes .............................................................................................................................................92
Tip and Ring Interface....................................................................................................................................92
Chapter 5 – SocketModem IP (MT2456SMI-IP).........................................................................................................94
Introduction.........................................................................................................................................................94
Product Ordering Information............................................................................................................................94
Technical Specifications ....................................................................................................................................95
SocketModem Configuration .............................................................................................................................97
Serial Configuration .......................................................................................................................................97
Electrical Characteristics...................................................................................................................................98
3.3V Serial for Board Rev. G (or higher)........................................................................................................98
3.3V Serial for Board Rev. A through F..........................................................................................................98
Application Notes ...............................................................................................................................................99
Tip and Ring Interface....................................................................................................................................99
Chapter 6 – SocketEthernet IP (MTXCSEM, MTXCSEM-L-RAS, & MT100SEM) ..................................................101
Introduction.......................................................................................................................................................101
Product Ordering Information..........................................................................................................................101
Technical Specifications ..................................................................................................................................102
Mechanical Dimensions for the MT100SEM ...................................................................................................104
SocketModem Configuration ...........................................................................................................................105
Serial Configuration .....................................................................................................................................105
Electrical Characteristics.................................................................................................................................106
3.3V Serial ...................................................................................................................................................106
5V Serial ......................................................................................................................................................106
Application Notes .............................................................................................................................................107
Ethernet Interface – Non-Isolated Design....................................................................................................107
Ethernet Interface – Isolated Design............................................................................................................107
Recommended Parts...................................................................................................................................107
Chapter 7 – SocketModem ISDN (MT128SMI)........................................................................................................109
Introduction.......................................................................................................................................................109
Product Ordering Information..........................................................................................................................109
Technical Specifications ..................................................................................................................................110
SocketModem ISDN Configuration..................................................................................................................111
Serial Configuration .....................................................................................................................................111
Electrical Characteristics.................................................................................................................................112
3.3V Serial SocketModem ISDN..................................................................................................................112
5V Serial SocketModem ISDN.....................................................................................................................112
Application Notes .............................................................................................................................................112
Safety Warning Telecom / ISDN-ST ............................................................................................................112
Interface Connector Contact Assignments...................................................................................................112
ISDN Interface .............................................................................................................................................112