Universal Socket Developer Guide
Contents
Chapter 1 – Embedded Solutions ................................................................................................................................7
Universal Socket Connectivity Features .............................................................................................................................. 7
Universal IP ......................................................................................................................................................................... 7
Developer Documentation .................................................................................................................................................. 7
The Universal Socket Design ............................................................................................................................................... 8
Embedded Modem and Device Servers .............................................................................................................................. 9
Embedded Cellular Modems........................................................................................................................................... 9
Embedded Analog Modems ............................................................................................................................................ 9
Embedded Device Servers .............................................................................................................................................. 9
Universal Developer Kit Contents ..................................................................................................................................... 10
Attaching Power Supply Blades ........................................................................................................................................ 11
Chapter 2 – Universal Socket Pinout ......................................................................................................................... 12
Pinout Diagrams ................................................................................................................................................................ 12
Universal SocketModem Pinout........................................................................................................................................ 12
Chapter 3 – Universal Design Considerations ............................................................................................................ 16
Noise Suppression Design Considerations ........................................................................................................................ 16
PC Board Layout Guidelines .............................................................................................................................................. 16
User accessible areas .................................................................................................................................................... 16
Electromagnetic Interference (EMI) Considerations ........................................................................................................ 17
Electrostatic Discharge Control ......................................................................................................................................... 17
USB Design Considerations ............................................................................................................................................... 18
Phone Line Warning Statement for the Developer Board ................................................................................................ 18
Mounting Hardware and Tooling Holes ............................................................................................................................ 18
Soldering ........................................................................................................................................................................... 18
Chapter 4 – Developer Board and Schematics ........................................................................................................... 19
SocketModem Developer Board ....................................................................................................................................... 19
SocketModem Developer Board Block Diagram ............................................................................................................... 21
Developer Board Schematics ............................................................................................................................................ 22
Board Components ........................................................................................................................................................... 29
Installing a Universal Socket Communications Device onto the Board ............................................................................ 30
Installing a SIM Card onto the Board ................................................................................................................................ 30
Making Other Board Connections ..................................................................................................................................... 30
Chapter 5 – Safety Notices and Warnings .................................................................................................................. 31
Cellular Safety ................................................................................................................................................................... 31
RF Safety ....................................................................................................................................................................... 31
Interference with Pacemakers and Other Medical Devices ......................................................................................... 32
Vehicle Safety ................................................................................................................................................................ 32
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