Specifications

Chapter 1 – Universal Socket Connectivity
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342C) 17
SocketModem Developer Board
SocketModem Developer Board Layout
This theoretical developer board drawing shows the major board components for all SocketModems.
Note that the board shipped in the Developer Kit is designed and built with only the components required by the
SocketModem in that kit; e.g., a serial dialup SocketModem board will not contain components for a wireless
SocketModem.
5 V / 3.3 V Jumper – JP6
The operating voltage factory default setting is 3.3 V. The JP1 jumper must be set to 3.3-volt.
Warning – Be sure to that 5 V/3.3 V jumper is set to match the requirements of your SocketModem. If this
jumper is set incorrectly, damage to the SocketModem and/or the Test/Demo card could result.
Caution – Use only the provided Multi-Tech Systems, Inc. transformer with the Test/Demo board. Use of any
other power source will void the warranty and will likely damage the Test/Demo board and the SocketModem.
The transformer connector is keyed to prevent improper connection to the Test/Demo board.
Handling Precautions
All electronic devices should be handled with certain precautions to avoid damage due to the accumulation of
static charge. Although input protection circuitry has been incorporated into the devices to minimize the effect of
this static buildup, proper precautions should be taken to avoid exposure to electrostatic discharge during
handling and mounting.