Specifications

Chapter 7 – SocketModem ISDN (MT128SMI)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342C) 104
SocketModem ISDN Configuration
Serial Configuration
The MT128SMI SocketModem uses a 23-pin interface.
Note: The bolded, shaded pins are the MT128SMI active pins.
SocketModem ISDN Pinout